2019-08-22 22:04:46 +02:00
[0;36m# general [0m
[0;32m(gen) banner: SSH-2.0-OpenSSH_8.0 [0m
[0;32m(gen) software: OpenSSH 8.0 [0m
2019-10-21 17:50:23 +02:00
[0;32m(gen) compatibility: OpenSSH 7.4+, Dropbear SSH 2018.76+ [0m
2019-08-22 22:04:46 +02:00
[0;32m(gen) compression: enabled (zlib@openssh.com) [0m
2022-02-22 03:48:10 +01:00
[0;36m# security [0m
[0;33m(cve) CVE-2021-41617 -- (CVSSv2: 7.0) privilege escalation via supplemental groups [0m
[0;33m(cve) CVE-2020-15778 -- (CVSSv2: 7.8) command injection via anomalous argument transfers [0m
[0;33m(cve) CVE-2019-16905 -- (CVSSv2: 7.8) memory corruption and local code execution via pre-authentication integer overflow [0m
[0;33m(cve) CVE-2016-20012 -- (CVSSv2: 5.3) enumerate usernames via challenge response [0m
2019-08-22 22:04:46 +02:00
[0;36m# key exchange algorithms [0m
2019-10-21 17:50:23 +02:00
[0;32m(kex) curve25519-sha256 -- [info] available since OpenSSH 7.4, Dropbear SSH 2018.76 [0m
2019-08-22 22:04:46 +02:00
[0;32m(kex) curve25519-sha256@libssh.org -- [info] available since OpenSSH 6.5, Dropbear SSH 2013.62 [0m
[0;31m(kex) ecdh-sha2-nistp256 -- [fail] using weak elliptic curves [0m
`- [info] available since OpenSSH 5.7, Dropbear SSH 2013.62
[0;31m(kex) ecdh-sha2-nistp384 -- [fail] using weak elliptic curves [0m
`- [info] available since OpenSSH 5.7, Dropbear SSH 2013.62
[0;31m(kex) ecdh-sha2-nistp521 -- [fail] using weak elliptic curves [0m
`- [info] available since OpenSSH 5.7, Dropbear SSH 2013.62
2023-02-06 22:27:30 +01:00
[0;33m(kex) diffie-hellman-group-exchange-sha256 (2048-bit) -- [warn] 2048-bit modulus only provides 112-bits of symmetric strength [0m
`- [info] available since OpenSSH 4.4
2023-03-21 16:44:45 +01:00
`- [info] A bug in OpenSSH causes it to fall back to a 2048-bit modulus regardless of server configuration (https://bugzilla.mindrot.org/show_bug.cgi?id=2793)
2019-08-22 22:04:46 +02:00
[0;32m(kex) diffie-hellman-group16-sha512 -- [info] available since OpenSSH 7.3, Dropbear SSH 2016.73 [0m
[0;32m(kex) diffie-hellman-group18-sha512 -- [info] available since OpenSSH 7.3 [0m
2023-02-06 22:27:30 +01:00
[0;33m(kex) diffie-hellman-group14-sha256 -- [warn] 2048-bit modulus only provides 112-bits of symmetric strength [0m
`- [info] available since OpenSSH 7.3, Dropbear SSH 2016.73
2019-08-22 22:04:46 +02:00
[0;33m(kex) diffie-hellman-group14-sha1 -- [warn] using weak hashing algorithm [0m
2023-02-06 22:27:30 +01:00
[0;33m `- [warn] 2048-bit modulus only provides 112-bits of symmetric strength [0m
2019-08-22 22:04:46 +02:00
`- [info] available since OpenSSH 3.9, Dropbear SSH 0.53
[0;36m# host-key algorithms [0m
[0;32m(key) rsa-sha2-512 (3072-bit) -- [info] available since OpenSSH 7.2 [0m
[0;32m(key) rsa-sha2-256 (3072-bit) -- [info] available since OpenSSH 7.2 [0m
2020-02-09 05:56:54 +01:00
[0;31m(key) ssh-rsa (3072-bit) -- [fail] using weak hashing algorithm [0m
`- [info] available since OpenSSH 2.5.0, Dropbear SSH 0.28
2021-02-02 01:19:46 +01:00
`- [info] a future deprecation notice has been issued in OpenSSH 8.2: https://www.openssh.com/txt/release-8.2
2019-08-22 22:04:46 +02:00
[0;31m(key) ecdsa-sha2-nistp256 -- [fail] using weak elliptic curves [0m
[0;33m `- [warn] using weak random number generator could reveal the key [0m
`- [info] available since OpenSSH 5.7, Dropbear SSH 2013.62
[0;32m(key) ssh-ed25519 -- [info] available since OpenSSH 6.5 [0m
[0;36m# encryption algorithms (ciphers) [0m
[0;32m(enc) chacha20-poly1305@openssh.com -- [info] available since OpenSSH 6.5 [0m
`- [info] default cipher since OpenSSH 6.9.
[0;32m(enc) aes128-ctr -- [info] available since OpenSSH 3.7, Dropbear SSH 0.52 [0m
[0;32m(enc) aes192-ctr -- [info] available since OpenSSH 3.7 [0m
[0;32m(enc) aes256-ctr -- [info] available since OpenSSH 3.7, Dropbear SSH 0.52 [0m
[0;32m(enc) aes128-gcm@openssh.com -- [info] available since OpenSSH 6.2 [0m
[0;32m(enc) aes256-gcm@openssh.com -- [info] available since OpenSSH 6.2 [0m
[0;36m# message authentication code algorithms [0m
[0;33m(mac) umac-64-etm@openssh.com -- [warn] using small 64-bit tag size [0m
`- [info] available since OpenSSH 6.2
[0;32m(mac) umac-128-etm@openssh.com -- [info] available since OpenSSH 6.2 [0m
[0;32m(mac) hmac-sha2-256-etm@openssh.com -- [info] available since OpenSSH 6.2 [0m
[0;32m(mac) hmac-sha2-512-etm@openssh.com -- [info] available since OpenSSH 6.2 [0m
[0;33m(mac) hmac-sha1-etm@openssh.com -- [warn] using weak hashing algorithm [0m
`- [info] available since OpenSSH 6.2
[0;33m(mac) umac-64@openssh.com -- [warn] using encrypt-and-MAC mode [0m
[0;33m `- [warn] using small 64-bit tag size [0m
`- [info] available since OpenSSH 4.7
[0;33m(mac) umac-128@openssh.com -- [warn] using encrypt-and-MAC mode [0m
`- [info] available since OpenSSH 6.2
[0;33m(mac) hmac-sha2-256 -- [warn] using encrypt-and-MAC mode [0m
`- [info] available since OpenSSH 5.9, Dropbear SSH 2013.56
[0;33m(mac) hmac-sha2-512 -- [warn] using encrypt-and-MAC mode [0m
`- [info] available since OpenSSH 5.9, Dropbear SSH 2013.56
[0;33m(mac) hmac-sha1 -- [warn] using encrypt-and-MAC mode [0m
[0;33m `- [warn] using weak hashing algorithm [0m
`- [info] available since OpenSSH 2.1.0, Dropbear SSH 0.28
[0;36m# fingerprints [0m
[0;32m(fin) ssh-ed25519: SHA256:UrnXIVH+7dlw8UqYocl48yUEcKrthGDQG2CPCgp7MxU [0m
[0;32m(fin) ssh-rsa: SHA256:nsWtdJ9Z67Vrf7OsUzQov7esXhsWAfVppArGh25u244 [0m
[0;36m# algorithm recommendations (for OpenSSH 8.0) [0m
[0;31m(rec) -ecdh-sha2-nistp256 -- kex algorithm to remove [0m
[0;31m(rec) -ecdh-sha2-nistp384 -- kex algorithm to remove [0m
[0;31m(rec) -ecdh-sha2-nistp521 -- kex algorithm to remove [0m
[0;31m(rec) -ecdsa-sha2-nistp256 -- key algorithm to remove [0m
2020-02-09 05:56:54 +01:00
[0;31m(rec) -ssh-rsa -- key algorithm to remove [0m
2019-08-22 22:04:46 +02:00
[0;33m(rec) -diffie-hellman-group14-sha1 -- kex algorithm to remove [0m
2023-02-06 22:27:30 +01:00
[0;33m(rec) -diffie-hellman-group14-sha256 -- kex algorithm to remove [0m
2019-08-22 22:04:46 +02:00
[0;33m(rec) -hmac-sha1 -- mac algorithm to remove [0m
[0;33m(rec) -hmac-sha1-etm@openssh.com -- mac algorithm to remove [0m
[0;33m(rec) -hmac-sha2-256 -- mac algorithm to remove [0m
[0;33m(rec) -hmac-sha2-512 -- mac algorithm to remove [0m
[0;33m(rec) -umac-128@openssh.com -- mac algorithm to remove [0m
[0;33m(rec) -umac-64-etm@openssh.com -- mac algorithm to remove [0m
[0;33m(rec) -umac-64@openssh.com -- mac algorithm to remove [0m
2019-09-28 00:14:36 +02:00
[0;36m# additional info [0m
[0;33m(nfo) For hardening guides on common OSes, please see: <https://www.ssh-audit.com/hardening_guides.html> [0m