mirror of
https://github.com/jtesta/ssh-audit.git
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The color of all notes will be printed in green when the related algorithm is rated good.
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@ -6,9 +6,9 @@
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[0;36m# key exchange algorithms[0m
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[0;32m(kex) curve25519-sha256 -- [info] available since OpenSSH 7.4, Dropbear SSH 2018.76[0m
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`- [info] default key exchange since OpenSSH 6.4
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[0;32m `- [info] default key exchange since OpenSSH 6.4[0m
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[0;32m(kex) curve25519-sha256@libssh.org -- [info] available since OpenSSH 6.4, Dropbear SSH 2013.62[0m
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`- [info] default key exchange since OpenSSH 6.4
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[0;32m `- [info] default key exchange since OpenSSH 6.4[0m
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[0;31m(kex) ecdh-sha2-nistp521 -- [fail] using elliptic curves that are suspected as being backdoored by the U.S. National Security Agency[0m
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`- [info] available since OpenSSH 5.7, Dropbear SSH 2013.62
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[0;31m(kex) ecdh-sha2-nistp384 -- [fail] using elliptic curves that are suspected as being backdoored by the U.S. National Security Agency[0m
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@ -12,9 +12,9 @@
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[0;36m# key exchange algorithms[0m
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[0;32m(kex) curve25519-sha256 -- [info] available since OpenSSH 7.4, Dropbear SSH 2018.76[0m
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`- [info] default key exchange since OpenSSH 6.4
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[0;32m `- [info] default key exchange since OpenSSH 6.4[0m
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[0;32m(kex) curve25519-sha256@libssh.org -- [info] available since OpenSSH 6.4, Dropbear SSH 2013.62[0m
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`- [info] default key exchange since OpenSSH 6.4
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[0;32m `- [info] default key exchange since OpenSSH 6.4[0m
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[0;31m(kex) ecdh-sha2-nistp256 -- [fail] using elliptic curves that are suspected as being backdoored by the U.S. National Security Agency[0m
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`- [info] available since OpenSSH 5.7, Dropbear SSH 2013.62
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[0;31m(kex) ecdh-sha2-nistp384 -- [fail] using elliptic curves that are suspected as being backdoored by the U.S. National Security Agency[0m
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@ -22,7 +22,7 @@
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[0;31m(kex) ecdh-sha2-nistp521 -- [fail] using elliptic curves that are suspected as being backdoored by the U.S. National Security Agency[0m
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`- [info] available since OpenSSH 5.7, Dropbear SSH 2013.62
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[0;32m(kex) diffie-hellman-group-exchange-sha256 (4096-bit) -- [info] available since OpenSSH 4.4[0m
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`- [info] OpenSSH's GEX fallback mechanism was triggered during testing. Very old SSH clients will still be able to create connections using a 2048-bit modulus, though modern clients will use 4096. This can only be disabled by recompiling the code (see https://github.com/openssh/openssh-portable/blob/V_9_4/dh.c#L477).
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[0;32m `- [info] OpenSSH's GEX fallback mechanism was triggered during testing. Very old SSH clients will still be able to create connections using a 2048-bit modulus, though modern clients will use 4096. This can only be disabled by recompiling the code (see https://github.com/openssh/openssh-portable/blob/V_9_4/dh.c#L477).[0m
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[0;32m(kex) diffie-hellman-group16-sha512 -- [info] available since OpenSSH 7.3, Dropbear SSH 2016.73[0m
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[0;32m(kex) diffie-hellman-group18-sha512 -- [info] available since OpenSSH 7.3[0m
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[0;33m(kex) diffie-hellman-group14-sha256 -- [warn] 2048-bit modulus only provides 112-bits of symmetric strength[0m
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@ -44,7 +44,7 @@
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[0;36m# encryption algorithms (ciphers)[0m
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[0;32m(enc) chacha20-poly1305@openssh.com -- [info] available since OpenSSH 6.5[0m
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`- [info] default cipher since OpenSSH 6.9
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[0;32m `- [info] default cipher since OpenSSH 6.9[0m
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[0;32m(enc) aes128-ctr -- [info] available since OpenSSH 3.7, Dropbear SSH 0.52[0m
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[0;32m(enc) aes192-ctr -- [info] available since OpenSSH 3.7[0m
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[0;32m(enc) aes256-ctr -- [info] available since OpenSSH 3.7, Dropbear SSH 0.52[0m
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@ -12,9 +12,9 @@
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[0;36m# key exchange algorithms[0m
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[0;32m(kex) curve25519-sha256 -- [info] available since OpenSSH 7.4, Dropbear SSH 2018.76[0m
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`- [info] default key exchange since OpenSSH 6.4
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[0;32m `- [info] default key exchange since OpenSSH 6.4[0m
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[0;32m(kex) curve25519-sha256@libssh.org -- [info] available since OpenSSH 6.4, Dropbear SSH 2013.62[0m
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`- [info] default key exchange since OpenSSH 6.4
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[0;32m `- [info] default key exchange since OpenSSH 6.4[0m
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[0;31m(kex) ecdh-sha2-nistp256 -- [fail] using elliptic curves that are suspected as being backdoored by the U.S. National Security Agency[0m
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`- [info] available since OpenSSH 5.7, Dropbear SSH 2013.62
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[0;31m(kex) ecdh-sha2-nistp384 -- [fail] using elliptic curves that are suspected as being backdoored by the U.S. National Security Agency[0m
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@ -22,7 +22,7 @@
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[0;31m(kex) ecdh-sha2-nistp521 -- [fail] using elliptic curves that are suspected as being backdoored by the U.S. National Security Agency[0m
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`- [info] available since OpenSSH 5.7, Dropbear SSH 2013.62
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[0;32m(kex) diffie-hellman-group-exchange-sha256 (4096-bit) -- [info] available since OpenSSH 4.4[0m
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`- [info] OpenSSH's GEX fallback mechanism was triggered during testing. Very old SSH clients will still be able to create connections using a 2048-bit modulus, though modern clients will use 4096. This can only be disabled by recompiling the code (see https://github.com/openssh/openssh-portable/blob/V_9_4/dh.c#L477).
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[0;32m `- [info] OpenSSH's GEX fallback mechanism was triggered during testing. Very old SSH clients will still be able to create connections using a 2048-bit modulus, though modern clients will use 4096. This can only be disabled by recompiling the code (see https://github.com/openssh/openssh-portable/blob/V_9_4/dh.c#L477).[0m
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[0;32m(kex) diffie-hellman-group16-sha512 -- [info] available since OpenSSH 7.3, Dropbear SSH 2016.73[0m
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[0;32m(kex) diffie-hellman-group18-sha512 -- [info] available since OpenSSH 7.3[0m
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[0;33m(kex) diffie-hellman-group14-sha256 -- [warn] 2048-bit modulus only provides 112-bits of symmetric strength[0m
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@ -37,7 +37,7 @@
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[0;36m# encryption algorithms (ciphers)[0m
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[0;32m(enc) chacha20-poly1305@openssh.com -- [info] available since OpenSSH 6.5[0m
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`- [info] default cipher since OpenSSH 6.9
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[0;32m `- [info] default cipher since OpenSSH 6.9[0m
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[0;32m(enc) aes128-ctr -- [info] available since OpenSSH 3.7, Dropbear SSH 0.52[0m
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[0;32m(enc) aes192-ctr -- [info] available since OpenSSH 3.7[0m
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[0;32m(enc) aes256-ctr -- [info] available since OpenSSH 3.7, Dropbear SSH 0.52[0m
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@ -12,18 +12,18 @@
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[0;36m# key exchange algorithms[0m
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[0;32m(kex) curve25519-sha256 -- [info] available since OpenSSH 7.4, Dropbear SSH 2018.76[0m
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`- [info] default key exchange since OpenSSH 6.4
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[0;32m `- [info] default key exchange since OpenSSH 6.4[0m
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[0;32m(kex) curve25519-sha256@libssh.org -- [info] available since OpenSSH 6.4, Dropbear SSH 2013.62[0m
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`- [info] default key exchange since OpenSSH 6.4
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[0;32m `- [info] default key exchange since OpenSSH 6.4[0m
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[0;32m(kex) diffie-hellman-group-exchange-sha256 (4096-bit) -- [info] available since OpenSSH 4.4[0m
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`- [info] OpenSSH's GEX fallback mechanism was triggered during testing. Very old SSH clients will still be able to create connections using a 2048-bit modulus, though modern clients will use 4096. This can only be disabled by recompiling the code (see https://github.com/openssh/openssh-portable/blob/V_9_4/dh.c#L477).
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[0;32m `- [info] OpenSSH's GEX fallback mechanism was triggered during testing. Very old SSH clients will still be able to create connections using a 2048-bit modulus, though modern clients will use 4096. This can only be disabled by recompiling the code (see https://github.com/openssh/openssh-portable/blob/V_9_4/dh.c#L477).[0m
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[0;36m# host-key algorithms[0m
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[0;32m(key) ssh-ed25519 -- [info] available since OpenSSH 6.5[0m
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[0;36m# encryption algorithms (ciphers)[0m
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[0;32m(enc) chacha20-poly1305@openssh.com -- [info] available since OpenSSH 6.5[0m
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`- [info] default cipher since OpenSSH 6.9
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[0;32m `- [info] default cipher since OpenSSH 6.9[0m
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[0;32m(enc) aes256-gcm@openssh.com -- [info] available since OpenSSH 6.2[0m
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[0;32m(enc) aes128-gcm@openssh.com -- [info] available since OpenSSH 6.2[0m
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[0;32m(enc) aes256-ctr -- [info] available since OpenSSH 3.7, Dropbear SSH 0.52[0m
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@ -5,9 +5,9 @@
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[0;36m# key exchange algorithms[0m
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[0;32m(kex) curve25519-sha256 -- [info] available since OpenSSH 7.4, Dropbear SSH 2018.76[0m
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`- [info] default key exchange since OpenSSH 6.4
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[0;32m `- [info] default key exchange since OpenSSH 6.4[0m
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[0;32m(kex) curve25519-sha256@libssh.org -- [info] available since OpenSSH 6.4, Dropbear SSH 2013.62[0m
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`- [info] default key exchange since OpenSSH 6.4
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[0;32m `- [info] default key exchange since OpenSSH 6.4[0m
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[0;33m(kex) sntrup4591761x25519-sha512@tinyssh.org -- [warn] using experimental algorithm[0m
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`- [info] available since OpenSSH 8.0
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`- [info] the sntrup4591761 algorithm was withdrawn, as it may not provide strong post-quantum security
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@ -17,7 +17,7 @@
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[0;36m# encryption algorithms (ciphers)[0m
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[0;32m(enc) chacha20-poly1305@openssh.com -- [info] available since OpenSSH 6.5[0m
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`- [info] default cipher since OpenSSH 6.9
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[0;32m `- [info] default cipher since OpenSSH 6.9[0m
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[0;36m# message authentication code algorithms[0m
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[0;33m(mac) hmac-sha2-256 -- [warn] using encrypt-and-MAC mode[0m
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