TMA-FREEBSD-4.2.9

Ensure sshd HostbasedAuthentication is disabled

HochStufe 1Automatisiertfreebsd

Beschreibung

The HostbasedAuthentication parameter specifies if authentication is allowed through trusted hosts via the user of .rhosts, or /etc/hosts.equiv, along with successful public key client host authentication. Even though the .rhosts files are ineffective if support is disabled in /etc/pam.conf, disabling the ability to use .rhosts files in SSH provides an additional layer of protection. Audit: evaluates the effective configuration from `sshd -T` (Match blocks must be reviewed separately).

So wird geprüft

Prüfmethode: Shell-Befehl

shell

command -v sshd >/dev/null 2>&1 || exit 1; out=$(sshd -T 2>/dev/null) || exit 1; r=compliant; for p in '^hostbasedauthentication[[:blank:]]+no$'; do printf '%s\n' "$out" | grep -Eiq -- "$p" || r="not matched: $p"; done; echo "$r"

Erwartete Ausgabe: compliant

So wird behoben

Behebungsmethode: Anleitung oder Infrastruktur-Patch

Edit the /etc/ssh/sshd_config file to set the parameter above any Include entries as follows: HostbasedAuthentication no

Eigenschaften

Betriebssysteme: Beliebig
Tags: freebsdssh
Referenz: CIS FreeBSD 14 Benchmark v1.0.1 - 4.2.9 Ensure sshd HostbasedAuthentication is disabled

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shell

tmaegis scan --target freebsd