[0;36m# general[0m
[0;32m(gen) banner: SSH-2.0-OpenSSH_8.0[0m
[0;32m(gen) software: OpenSSH 8.0[0m
[0;32m(gen) compatibility: OpenSSH 7.4+, Dropbear SSH 2020.79+[0m
[0;32m(gen) compression: enabled (zlib@openssh.com)[0m

[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

[0;36m# key exchange algorithms[0m
[0;32m(kex) curve25519-sha256                     -- [info] available since OpenSSH 7.4, Dropbear SSH 2018.76[0m
[0;32m                                            `- [info] default key exchange from OpenSSH 7.4 to 8.9[0m
[0;32m(kex) curve25519-sha256@libssh.org          -- [info] available since OpenSSH 6.4, Dropbear SSH 2013.62[0m
[0;32m                                            `- [info] default key exchange from OpenSSH 6.5 to 7.3[0m
[0;31m(kex) ecdh-sha2-nistp256                    -- [fail] using elliptic curves that are suspected as being backdoored by the U.S. National Security Agency[0m
                                            `- [info] available since OpenSSH 5.7, Dropbear SSH 2013.62
[0;31m(kex) ecdh-sha2-nistp384                    -- [fail] using elliptic curves that are suspected as being backdoored by the U.S. National Security Agency[0m
                                            `- [info] available since OpenSSH 5.7, Dropbear SSH 2013.62
[0;31m(kex) ecdh-sha2-nistp521                    -- [fail] using elliptic curves that are suspected as being backdoored by the U.S. National Security Agency[0m
                                            `- [info] available since OpenSSH 5.7, Dropbear SSH 2013.62
[0;32m(kex) diffie-hellman-group-exchange-sha256 (4096-bit) -- [info] available since OpenSSH 4.4[0m
[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
[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
[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
[0;31m(kex) diffie-hellman-group14-sha1           -- [fail] using broken SHA-1 hash algorithm[0m
[0;33m                                            `- [warn] 2048-bit modulus only provides 112-bits of symmetric strength[0m
                                            `- [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, Dropbear SSH 2020.79[0m
[0;31m(key) ssh-rsa (3072-bit)                    -- [fail] using broken SHA-1 hash algorithm[0m
                                            `- [info] available since OpenSSH 2.5.0, Dropbear SSH 0.28
                                            `- [info] deprecated in OpenSSH 8.8: https://www.openssh.com/txt/release-8.8
[0;31m(key) ecdsa-sha2-nistp256                   -- [fail] using elliptic curves that are suspected as being backdoored by the U.S. National Security Agency[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, Dropbear SSH 2020.79[0m

[0;36m# encryption algorithms (ciphers)[0m
[0;33m(enc) chacha20-poly1305@openssh.com         -- [warn] vulnerable to the Terrapin attack (CVE-2023-48795), allowing message prefix truncation[0m
                                            `- [info] available since OpenSSH 6.5, Dropbear SSH 2020.79
                                            `- [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;31m(mac) hmac-sha1-etm@openssh.com             -- [fail] using broken SHA-1 hash 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;31m(mac) hmac-sha1                             -- [fail] using broken SHA-1 hash algorithm[0m
[0;33m                                            `- [warn] using encrypt-and-MAC mode[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) -diffie-hellman-group14-sha1          -- kex algorithm to remove [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
[0;31m(rec) -hmac-sha1                            -- mac algorithm to remove [0m
[0;31m(rec) -hmac-sha1-etm@openssh.com            -- mac algorithm to remove [0m
[0;31m(rec) -ssh-rsa                              -- key algorithm to remove [0m
[0;33m(rec) -chacha20-poly1305@openssh.com        -- enc algorithm to remove [0m
[0;33m(rec) -diffie-hellman-group14-sha256        -- kex 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

[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

