Host SSH daemon, if enabled, must set a timeout count on idle sessions

MoyenneNiveau 1Automatiséevmware

Description

Setting a timeout count on idle SSH sessions ensures that inactive sessions are automatically disconnected after a specified period. This period is calculated by multiplying the timeout count with the idle timeout interval. Automatic disconnection of idle sessions reduces the window of opportunity for unauthorized access. The audit reads /etc/ssh/sshd_config and requires ClientAliveCountMax to be set to a non-zero value; confirm it matches the approved value. Runs in the ESXi Shell (busybox sh) as root.

Méthode de vérification

Méthode d'audit: Commande shell

shell

f=/etc/ssh/sshd_config; [ -r "$f" ] || exit 1
v=$(awk 'tolower($1)=="clientalivecountmax" {print $2; exit}' "$f")
case "$v" in ''|*[!0-9]*) echo 'ClientAliveCountMax ${v:-not set}'; exit 1 ;; esac
[ "$v" -gt 0 ] && echo compliant || echo 'ClientAliveCountMax is 0'

Sortie attendue: compliant

Méthode de correction

Méthode de correction: Recommandation ou correctif d'infrastructure

To remediate this recommendation, set ClientAliveCountMax to the approved value, then restart SSH if enabled and test that inactive sessions are closed after the configured interval/count.

Propriétés

Systèmes d'exploitation: Tous
Étiquettes: vmwareesxiservices
Référence: CIS VMware ESXi 9.0 Benchmark v1.0.0 - 6.5.5 Host SSH daemon, if enabled, must set a timeout count on idle sessions

Vérifier cet hôte

Exécutez cette commande sur une machine que vous êtes autorisé à auditer. L'analyse est en lecture seule.

shell

tmaegis scan --target vmware