nhyatt/ssh-audit
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Added 2 new key exchanges: mlkem768nistp256-sha256, mlkem1024nistp384-sha384.

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Joe Testa 2025-04-18 18:29:18 -04:00
parent b90db2c1af
commit 5ddd8cca5b
3 changed files with 8 additions and 2 deletions
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1
README.md
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@ -221,6 +221,7 @@ For convenience, a web front-end on top of the command-line tool is available at
- Migrated from deprecated `getopt` module to `argparse`; partial credit [oam7575](https://github.com/oam7575).
- When running against multiple hosts, now prints each target host regardless of output level.
- Batch mode (`-b`) no longer automatically enables verbose mode, due to sometimes confusing results; users can still explicitly enable verbose mode using the `-v` flag.
- Added 2 new key exchanges: `mlkem768nistp256-sha256`, `mlkem1024nistp384-sha384`.
### v3.3.0 (2024-10-15)
- Added Python 3.13 support.

5
src/ssh_audit/ssh2_kexdb.py
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@ -1,7 +1,7 @@
"""
The MIT License (MIT)
Copyright (C) 2017-2024 Joe Testa (jtesta@positronsecurity.com)
Copyright (C) 2017-2025 Joe Testa (jtesta@positronsecurity.com)
Copyright (C) 2017 Andris Raugulis (moo@arthepsy.eu)
Permission is hereby granted, free of charge, to any person obtaining a copy
@ -72,6 +72,7 @@ class SSH2_KexDB: # pylint: disable=too-few-public-methods
INFO_DISABLED_IN_OPENSSH70 = 'disabled in OpenSSH 7.0: https://www.openssh.com/txt/release-7.0'
INFO_NEVER_IMPLEMENTED_IN_OPENSSH = 'despite the @openssh.com tag, this was never implemented in OpenSSH'
INFO_HYBRID_PQ_X25519_KEX = 'hybrid key exchange based on post-quantum resistant algorithm and proven conventional X25519 algorithm'
INFO_HYBRID_PQ_NISTP_KEX = 'hybrid key exchange based on post-quantum resistant algorithm and a suspected back-doored NIST P-curve'
INFO_REMOVED_IN_OPENSSH61 = 'removed since OpenSSH 6.1, removed from specification'
INFO_REMOVED_IN_OPENSSH69 = 'removed in OpenSSH 6.9: https://www.openssh.com/txt/release-6.9'
INFO_REMOVED_IN_OPENSSH70 = 'removed in OpenSSH 7.0: https://www.openssh.com/txt/release-7.0'
@ -193,6 +194,8 @@ class SSH2_KexDB: # pylint: disable=too-few-public-methods
'm383-sha384@libassh.org': [[], [FAIL_UNPROVEN], [WARN_NOT_PQ_SAFE]],
'm511-sha512@libassh.org': [[], [FAIL_UNPROVEN], [WARN_NOT_PQ_SAFE]],
'mlkem768x25519-sha256': [['9.9'], [], [], [INFO_HYBRID_PQ_X25519_KEX]],
'mlkem768nistp256-sha256': [[], [FAIL_NSA_BACKDOORED_CURVE], [], [INFO_HYBRID_PQ_NISTP_KEX]],
'mlkem1024nistp384-sha384': [[], [FAIL_NSA_BACKDOORED_CURVE], [], [INFO_HYBRID_PQ_NISTP_KEX]],
'rsa1024-sha1': [[], [FAIL_1024BIT_MODULUS, FAIL_SHA1], [WARN_NOT_PQ_SAFE]],
'rsa2048-sha256': [[], [], [WARN_2048BIT_MODULUS, WARN_NOT_PQ_SAFE]],
'sm2kep-sha2-nistp256': [[], [FAIL_NSA_BACKDOORED_CURVE, FAIL_UNTRUSTED], [WARN_NOT_PQ_SAFE]],

4
test/test_ssh2_kexdb.py
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@ -53,7 +53,9 @@ class Test_SSH2_KexDB:
"sntrup761x25519-sha512@openssh.com",
"sntrup761x25519-sha512",
"x25519-kyber-512r3-sha256-d00@amazon.com",
"x25519-kyber512-sha512@aws.amazon.com"
"x25519-kyber512-sha512@aws.amazon.com",
"mlkem768nistp256-sha256", # PQ safe, but has a conventional back-door.
"mlkem1024nistp384-sha384" # PQ safe, but has a conventional back-door.
]
failures = []