6.5 KiB
6.5 KiB
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./docs/AUDIT_SSH.md
1. CISS.debian.live.builder
Centurion Intelligence Consulting Agency Information Security Standard
Debian Live Build Generator for hardened live environment and CISS Debian Installer
Master Version: 8.02
Build: V8.03.127.2025.06.02
2. SSH Audit by ssh-audit.com
3. SSH Audit by https://github.com/jtesta/ssh-audit
# general
(gen) banner: SSH-2.0-OpenSSH_9.2p1
(gen) software: OpenSSH 9.2p1
(gen) compatibility: OpenSSH 9.9+, Dropbear SSH 2020.79+
(gen) compression: disabled
# key exchange algorithms
(kex) sntrup761x25519-sha512@openssh.com -- [info] available since OpenSSH 8.5
`- [info] default key exchange from OpenSSH 9.0 to 9.8
`- [info] hybrid key exchange based on post-quantum resistant algorithm and proven conventional X25519 algorithm
(kex) sntrup761x25519-sha512 -- [info] available since OpenSSH 9.9
`- [info] default key exchange since OpenSSH 9.9
`- [info] hybrid key exchange based on post-quantum resistant algorithm and proven conventional X25519 algorithm
(kex) kex-strict-s-v00@openssh.com -- [info] pseudo-algorithm that denotes the peer supports a stricter key exchange method as a counter-measure to the Terrapin attack (CVE-2023-48795)
# host-key algorithms
(key) ssh-ed25519 -- [info] available since OpenSSH 6.5, Dropbear SSH 2020.79
(key) rsa-sha2-512 -- [info] available since OpenSSH 7.2
(key) rsa-sha2-256 -- [info] available since OpenSSH 7.2, Dropbear SSH 2020.79
# encryption algorithms (ciphers)
(enc) aes256-gcm@openssh.com -- [info] available since OpenSSH 6.2
(enc) aes256-ctr -- [info] available since OpenSSH 3.7, Dropbear SSH 0.52
# message authentication code algorithms
(mac) hmac-sha2-512-etm@openssh.com -- [info] available since OpenSSH 6.2
(mac) hmac-sha2-256-etm@openssh.com -- [info] available since OpenSSH 6.2
# algorithm recommendations (for OpenSSH 9.2)
(rec) +aes128-ctr -- enc algorithm to append
(rec) +aes128-gcm@openssh.com -- enc algorithm to append
(rec) +aes192-ctr -- enc algorithm to appendno tracking | no logging | no advertising | no profiling | no bullshit
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