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https://github.com/jtesta/ssh-audit.git
synced 2024-12-22 00:55:10 +01:00
Add warnings for encryption and MAC.
Add none cipher and MAC.
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parent
ca9baf80b8
commit
6f70e328b2
78
ssh-audit.py
78
ssh-audit.py
@ -151,12 +151,18 @@ FAIL_OPENSSH61_REMOVE = 'removed since OpenSSH 6.1, removed from specification'
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FAIL_OPENSSH31_REMOVE = 'removed since OpenSSH 3.1'
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FAIL_DBEAR67_DISABLED = 'disabled since Dropbear SSH 2015.67'
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FAIL_DBEAR53_DISABLED = 'disabled since Dropbear SSH 0.53'
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FAIL_PLAINTEXT = 'no encryption/integrity'
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TEXT_CURVES_WEAK = 'using weak elliptic curves'
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TEXT_RNDSIG_KEY = 'using weak random number generator could reveal the key'
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TEXT_MODULUS_SIZE = 'using modulus with small (1024) bit size'
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TEXT_MODULUS_CUSTOM = 'using modulus with custom (possibly weak) bit sizes'
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TEXT_MODULUS_SIZE = 'using small 1024-bit modulus'
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TEXT_MODULUS_CUSTOM = 'using custom size modulus (possibly weak)'
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TEXT_HASH_WEAK = 'using weak hashing algorithm'
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TEXT_CIPHER_MODE = 'using weak cipher mode'
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TEXT_BLOCK_SIZE = 'using small 64-bit block size'
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TEXT_CIPHER_WEAK = 'using weak cipher'
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TEXT_ENCRYPT_AND_MAC = 'using encrypt-and-MAC mode'
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TEXT_TAG_SIZE = 'using small 64-bit tag size'
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KEX_DB = {
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'kex': {
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@ -187,25 +193,26 @@ KEX_DB = {
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'ecdsa-sha2-nistp521-cert-v01@openssh.com': ['5.7', [TEXT_CURVES_WEAK], [TEXT_RNDSIG_KEY]],
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},
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'enc': {
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'3des-cbc': ['1.2.2,d0.28', [FAIL_OPENSSH67_UNSAFE]],
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'none': ['1.2.2,d2013.56', [FAIL_PLAINTEXT]],
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'3des-cbc': ['1.2.2,d0.28', [FAIL_OPENSSH67_UNSAFE], [TEXT_CIPHER_WEAK, TEXT_CIPHER_MODE, TEXT_BLOCK_SIZE]],
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'3des-ctr': ['d0.52'],
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'blowfish-cbc': ['1.2.2,d0.28', [FAIL_OPENSSH67_UNSAFE, FAIL_DBEAR53_DISABLED], [WARN_OPENSSH72_LEGACY]],
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'twofish-cbc': ['d0.28', [FAIL_DBEAR67_DISABLED]],
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'twofish128-cbc': ['d0.47', [FAIL_DBEAR67_DISABLED]],
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'twofish256-cbc': ['d0.47', [FAIL_DBEAR67_DISABLED]],
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'blowfish-cbc': ['1.2.2,d0.28', [FAIL_OPENSSH67_UNSAFE, FAIL_DBEAR53_DISABLED], [WARN_OPENSSH72_LEGACY, TEXT_CIPHER_MODE, TEXT_BLOCK_SIZE]],
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'twofish-cbc': ['d0.28', [FAIL_DBEAR67_DISABLED], [TEXT_CIPHER_MODE]],
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'twofish128-cbc': ['d0.47', [FAIL_DBEAR67_DISABLED], [TEXT_CIPHER_MODE]],
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'twofish256-cbc': ['d0.47', [FAIL_DBEAR67_DISABLED], [TEXT_CIPHER_MODE]],
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'twofish128-ctr': ['d2015.68'],
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'twofish256-ctr': ['d2015.68'],
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'cast128-cbc': ['2.1.0', [FAIL_OPENSSH67_UNSAFE], [WARN_OPENSSH72_LEGACY]],
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'arcfour': ['2.1.0', [FAIL_OPENSSH67_UNSAFE], [WARN_OPENSSH72_LEGACY]],
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'arcfour128': ['4.2', [FAIL_OPENSSH67_UNSAFE], [WARN_OPENSSH72_LEGACY]],
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'arcfour256': ['4.2', [FAIL_OPENSSH67_UNSAFE], [WARN_OPENSSH72_LEGACY]],
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'aes128-cbc': ['2.3.0,d0.28', [FAIL_OPENSSH67_UNSAFE]],
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'aes192-cbc': ['2.3.0', [FAIL_OPENSSH67_UNSAFE]],
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'aes256-cbc': ['2.3.0,d0.47', [FAIL_OPENSSH67_UNSAFE]],
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'rijndael128-cbc': ['2.3.0', [FAIL_OPENSSH31_REMOVE]],
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'rijndael192-cbc': ['2.3.0', [FAIL_OPENSSH31_REMOVE]],
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'rijndael256-cbc': ['2.3.0', [FAIL_OPENSSH31_REMOVE]],
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'rijndael-cbc@lysator.liu.se': ['2.3.0', [], [WARN_OPENSSH72_LEGACY]],
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'cast128-cbc': ['2.1.0', [FAIL_OPENSSH67_UNSAFE], [WARN_OPENSSH72_LEGACY, TEXT_CIPHER_MODE, TEXT_BLOCK_SIZE]],
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'arcfour': ['2.1.0', [FAIL_OPENSSH67_UNSAFE], [WARN_OPENSSH72_LEGACY, TEXT_CIPHER_WEAK]],
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'arcfour128': ['4.2', [FAIL_OPENSSH67_UNSAFE], [WARN_OPENSSH72_LEGACY, TEXT_CIPHER_WEAK]],
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'arcfour256': ['4.2', [FAIL_OPENSSH67_UNSAFE], [WARN_OPENSSH72_LEGACY, TEXT_CIPHER_WEAK]],
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'aes128-cbc': ['2.3.0,d0.28', [FAIL_OPENSSH67_UNSAFE], [TEXT_CIPHER_MODE]],
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'aes192-cbc': ['2.3.0', [FAIL_OPENSSH67_UNSAFE], [TEXT_CIPHER_MODE]],
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'aes256-cbc': ['2.3.0,d0.47', [FAIL_OPENSSH67_UNSAFE], [TEXT_CIPHER_MODE]],
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'rijndael128-cbc': ['2.3.0', [FAIL_OPENSSH31_REMOVE], [TEXT_CIPHER_MODE]],
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'rijndael192-cbc': ['2.3.0', [FAIL_OPENSSH31_REMOVE], [TEXT_CIPHER_MODE]],
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'rijndael256-cbc': ['2.3.0', [FAIL_OPENSSH31_REMOVE], [TEXT_CIPHER_MODE]],
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'rijndael-cbc@lysator.liu.se': ['2.3.0', [], [WARN_OPENSSH72_LEGACY, TEXT_CIPHER_MODE]],
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'aes128-ctr': ['3.7,d0.52'],
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'aes192-ctr': ['3.7'],
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'aes256-ctr': ['3.7,d0.52'],
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@ -214,26 +221,27 @@ KEX_DB = {
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'chacha20-poly1305@openssh.com': ['6.5', [], [], [INFO_OPENSSH69_CHACHA]],
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},
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'mac': {
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'hmac-sha1': ['2.1.0,d0.28'],
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'hmac-sha1-96': ['2.5.0,d0.47', [FAIL_OPENSSH67_UNSAFE]],
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'hmac-sha2-256': ['5.9,d2013.56'],
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'hmac-sha2-256-96': ['5.9', [FAIL_OPENSSH61_REMOVE]],
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'hmac-sha2-512': ['5.9,d2013.56'],
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'hmac-sha2-512-96': ['5.9', [FAIL_OPENSSH61_REMOVE]],
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'hmac-md5': ['2.1.0,d0.28', [FAIL_OPENSSH67_UNSAFE], [WARN_OPENSSH72_LEGACY]],
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'hmac-md5-96': ['2.5.0', [FAIL_OPENSSH67_UNSAFE], [WARN_OPENSSH72_LEGACY]],
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'hmac-ripemd160': ['2.5.0', [FAIL_OPENSSH67_UNSAFE]],
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'hmac-ripemd160@openssh.com': ['2.1.0', [FAIL_OPENSSH67_UNSAFE]],
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'umac-64@openssh.com': ['4.7'],
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'umac-128@openssh.com': ['6.2'],
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'hmac-sha1-etm@openssh.com': ['6.2'],
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'hmac-sha1-96-etm@openssh.com': ['6.2', [FAIL_OPENSSH67_UNSAFE]],
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'none': ['d2013.56', [FAIL_PLAINTEXT]],
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'hmac-sha1': ['2.1.0,d0.28', [], [TEXT_ENCRYPT_AND_MAC, TEXT_HASH_WEAK]],
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'hmac-sha1-96': ['2.5.0,d0.47', [FAIL_OPENSSH67_UNSAFE], [TEXT_ENCRYPT_AND_MAC, TEXT_HASH_WEAK]],
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'hmac-sha2-256': ['5.9,d2013.56', [], [TEXT_ENCRYPT_AND_MAC]],
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'hmac-sha2-256-96': ['5.9', [FAIL_OPENSSH61_REMOVE], [TEXT_ENCRYPT_AND_MAC]],
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'hmac-sha2-512': ['5.9,d2013.56', [], [TEXT_ENCRYPT_AND_MAC]],
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'hmac-sha2-512-96': ['5.9', [FAIL_OPENSSH61_REMOVE], [TEXT_ENCRYPT_AND_MAC]],
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'hmac-md5': ['2.1.0,d0.28', [FAIL_OPENSSH67_UNSAFE], [WARN_OPENSSH72_LEGACY, TEXT_ENCRYPT_AND_MAC, TEXT_HASH_WEAK]],
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'hmac-md5-96': ['2.5.0', [FAIL_OPENSSH67_UNSAFE], [WARN_OPENSSH72_LEGACY, TEXT_ENCRYPT_AND_MAC, TEXT_HASH_WEAK]],
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'hmac-ripemd160': ['2.5.0', [FAIL_OPENSSH67_UNSAFE], [TEXT_ENCRYPT_AND_MAC]],
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'hmac-ripemd160@openssh.com': ['2.1.0', [FAIL_OPENSSH67_UNSAFE], [TEXT_ENCRYPT_AND_MAC]],
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'umac-64@openssh.com': ['4.7', [], [TEXT_ENCRYPT_AND_MAC, TEXT_TAG_SIZE]],
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'umac-128@openssh.com': ['6.2', [], [TEXT_ENCRYPT_AND_MAC]],
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'hmac-sha1-etm@openssh.com': ['6.2', [], [TEXT_HASH_WEAK]],
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'hmac-sha1-96-etm@openssh.com': ['6.2', [FAIL_OPENSSH67_UNSAFE], [TEXT_HASH_WEAK]],
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'hmac-sha2-256-etm@openssh.com': ['6.2'],
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'hmac-sha2-512-etm@openssh.com': ['6.2'],
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'hmac-md5-etm@openssh.com': ['6.2', [FAIL_OPENSSH67_UNSAFE], [WARN_OPENSSH72_LEGACY]],
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'hmac-md5-96-etm@openssh.com': ['6.2', [FAIL_OPENSSH67_UNSAFE], [WARN_OPENSSH72_LEGACY]],
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'hmac-md5-etm@openssh.com': ['6.2', [FAIL_OPENSSH67_UNSAFE], [WARN_OPENSSH72_LEGACY, TEXT_HASH_WEAK]],
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'hmac-md5-96-etm@openssh.com': ['6.2', [FAIL_OPENSSH67_UNSAFE], [WARN_OPENSSH72_LEGACY, TEXT_HASH_WEAK]],
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'hmac-ripemd160-etm@openssh.com': ['6.2', [FAIL_OPENSSH67_UNSAFE]],
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'umac-64-etm@openssh.com': ['6.2'],
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'umac-64-etm@openssh.com': ['6.2', [], [TEXT_TAG_SIZE]],
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'umac-128-etm@openssh.com': ['6.2'],
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}
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}
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