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Added 24 new key exchanges: 'ecdh-sha2-1.3.132.0.1', 'ecdh-sha2-1.2.840.10045.3.1.1', 'ecdh-sha2-1.3.132.0.33', 'ecdh-sha2-1.3.132.0.26', 'ecdh-sha2-1.3.132.0.27', 'ecdh-sha2-1.2.840.10045.3.1.7', 'ecdh-sha2-1.3.132.0.16', 'ecdh-sha2-1.3.132.0.34', 'ecdh-sha2-1.3.132.0.36', 'ecdh-sha2-1.3.132.0.37', 'ecdh-sha2-1.3.132.0.35', 'ecdh-sha2-1.3.132.0.38', 'ecdh-sha2-4MHB+NBt3AlaSRQ7MnB4cg==', 'ecdh-sha2-5pPrSUQtIaTjUSt5VZNBjg==', 'ecdh-sha2-VqBg4QRPjxx1EXZdV0GdWQ==', 'ecdh-sha2-zD/b3hu/71952ArpUG4OjQ==', 'ecdh-sha2-qCbG5Cn/jjsZ7nBeR7EnOA==', 'ecdh-sha2-9UzNcgwTlEnSCECZa7V1mw==', 'ecdh-sha2-wiRIU8TKjMZ418sMqlqtvQ==', 'ecdh-sha2-qcFQaMAMGhTziMT0z+Tuzw==', 'ecdh-sha2-m/FtSAmrV4j/Wy6RVUaK7A==', 'ecdh-sha2-D3FefCjYoJ/kfXgAyLddYA==', 'ecdh-sha2-h/SsxnLCtRBh7I9ATyeB3A==', 'ecdh-sha2-mNVwCXAoS1HGmHpLvBC94w=='.

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Joe Testa 2021-10-20 22:25:20 -04:00
parent b04acc3737
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1
README.md
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@ -174,6 +174,7 @@ For convenience, a web front-end on top of the command-line tool is available at
### v2.6.0-dev
- Snap packages now print more user-friendly error messages when permission errors are encountered.
- JSON 'target' field now always includes port number; credit [tomatohater1337](https://github.com/tomatohater1337).
- Added 24 new key exchanges: `ecdh-sha2-1.3.132.0.1`, `ecdh-sha2-1.2.840.10045.3.1.1`, `ecdh-sha2-1.3.132.0.33`, `ecdh-sha2-1.3.132.0.26`, `ecdh-sha2-1.3.132.0.27`, `ecdh-sha2-1.2.840.10045.3.1.7`, `ecdh-sha2-1.3.132.0.16`, `ecdh-sha2-1.3.132.0.34`, `ecdh-sha2-1.3.132.0.36`, `ecdh-sha2-1.3.132.0.37`, `ecdh-sha2-1.3.132.0.35`, `ecdh-sha2-1.3.132.0.38`, `ecdh-sha2-4MHB+NBt3AlaSRQ7MnB4cg==`, `ecdh-sha2-5pPrSUQtIaTjUSt5VZNBjg==`, `ecdh-sha2-VqBg4QRPjxx1EXZdV0GdWQ==`, `ecdh-sha2-zD/b3hu/71952ArpUG4OjQ==`, `ecdh-sha2-qCbG5Cn/jjsZ7nBeR7EnOA==`, `ecdh-sha2-9UzNcgwTlEnSCECZa7V1mw==`, `ecdh-sha2-wiRIU8TKjMZ418sMqlqtvQ==`, `ecdh-sha2-qcFQaMAMGhTziMT0z+Tuzw==`, `ecdh-sha2-m/FtSAmrV4j/Wy6RVUaK7A==`, `ecdh-sha2-D3FefCjYoJ/kfXgAyLddYA==`, `ecdh-sha2-h/SsxnLCtRBh7I9ATyeB3A==`, `ecdh-sha2-mNVwCXAoS1HGmHpLvBC94w==`.
### v2.5.0 (2021-08-26)
- Fixed crash when running host key tests.

28
src/ssh_audit/ssh2_kexdb.py
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@ -48,6 +48,7 @@ class SSH2_KexDB: # pylint: disable=too-few-public-methods
FAIL_1024BIT_MODULUS = 'using small 1024-bit modulus'
FAIL_UNPROVEN = 'using unproven algorithm'
FAIL_HASH_WEAK = 'using weak hashing algorithm'
FAIL_SMALL_ECC_MODULUS = 'using small ECC modulus'
WARN_CURVES_WEAK = 'using weak elliptic curves'
WARN_RNDSIG_KEY = 'using weak random number generator could reveal the key'
WARN_HASH_WEAK = 'using weak hashing algorithm'
@ -114,6 +115,33 @@ class SSH2_KexDB: # pylint: disable=too-few-public-methods
'ecdh-sha2-nistp521': [['5.7,d2013.62'], [WARN_CURVES_WEAK]],
'ecdh-sha2-nistt571': [[], [WARN_CURVES_WEAK]],
'ecdh-sha2-1.3.132.0.10': [[]], # ECDH over secp256k1 (i.e.: the Bitcoin curve)
# Note: the base64 strings, according to draft 6 of RFC5656, is Base64(MD5(DER(OID))). The final RFC5656 dropped the base64 strings in favor of plain OID concatenation, but apparently some SSH servers implement them anyway. See: https://datatracker.ietf.org/doc/html/draft-green-secsh-ecc-06#section-9.2
'ecdh-sha2-1.3.132.0.1': [[], [FAIL_SMALL_ECC_MODULUS]], # sect163k1
'ecdh-sha2-4MHB+NBt3AlaSRQ7MnB4cg==': [[], [FAIL_SMALL_ECC_MODULUS]], # sect163k1
'ecdh-sha2-1.2.840.10045.3.1.1': [[], [FAIL_SMALL_ECC_MODULUS, WARN_CURVES_WEAK]], # NIST P-192 / secp192r1
'ecdh-sha2-5pPrSUQtIaTjUSt5VZNBjg==': [[], [FAIL_SMALL_ECC_MODULUS, WARN_CURVES_WEAK]], # NIST P-192 / secp192r1
'ecdh-sha2-1.3.132.0.33': [[], [FAIL_SMALL_ECC_MODULUS, WARN_CURVES_WEAK]], # NIST P-224 / secp224r1
'ecdh-sha2-VqBg4QRPjxx1EXZdV0GdWQ==': [[], [FAIL_SMALL_ECC_MODULUS, WARN_CURVES_WEAK]], # NIST P-224 / secp224r1
'ecdh-sha2-1.3.132.0.26': [[], [FAIL_SMALL_ECC_MODULUS]], # sect233k1
'ecdh-sha2-zD/b3hu/71952ArpUG4OjQ==': [[], [FAIL_SMALL_ECC_MODULUS]], # sect233k1
'ecdh-sha2-1.3.132.0.27': [[], [FAIL_SMALL_ECC_MODULUS, WARN_CURVES_WEAK]], # sect233r1
'ecdh-sha2-qCbG5Cn/jjsZ7nBeR7EnOA==': [[FAIL_SMALL_ECC_MODULUS, WARN_CURVES_WEAK]], # sect233r1
'ecdh-sha2-1.2.840.10045.3.1.7': [[], [WARN_CURVES_WEAK]], # NIST P-256 / secp256r1
'ecdh-sha2-9UzNcgwTlEnSCECZa7V1mw==': [[], [WARN_CURVES_WEAK]], # NIST P-256 / secp256r1
'ecdh-sha2-1.3.132.0.16': [[]], # sect283k1
'ecdh-sha2-wiRIU8TKjMZ418sMqlqtvQ==': [[]], # sect283k1
'ecdh-sha2-1.3.132.0.34': [[], [WARN_CURVES_WEAK]], # NIST P-384 / secp384r1
'ecdh-sha2-qcFQaMAMGhTziMT0z+Tuzw==': [[], [WARN_CURVES_WEAK]], # NIST P-384 / secp384r1
'ecdh-sha2-1.3.132.0.36': [[]], # sect409k1
'ecdh-sha2-m/FtSAmrV4j/Wy6RVUaK7A==': [[]], # sect409k1
'ecdh-sha2-1.3.132.0.37': [[], [WARN_CURVES_WEAK]], # sect409r1
'ecdh-sha2-D3FefCjYoJ/kfXgAyLddYA==': [[], [WARN_CURVES_WEAK]], # sect409r1
'ecdh-sha2-1.3.132.0.35': [[], [WARN_CURVES_WEAK]], # NIST P-521 / secp521r1
'ecdh-sha2-h/SsxnLCtRBh7I9ATyeB3A==': [[], [WARN_CURVES_WEAK]], # NIST P-521 / secp521r1
'ecdh-sha2-1.3.132.0.38': [[]], # sect571k1
'ecdh-sha2-mNVwCXAoS1HGmHpLvBC94w==': [[]], # sect571k1
'curve25519-sha256@libssh.org': [['6.5,d2013.62,l10.6.0']],
'curve25519-sha256': [['7.4,d2018.76']],
'curve448-sha512': [[]],