Host must automatically terminate idle host client sessions

中レベル 1自動vmware

説明

Configuring the host to automatically terminate idle host client sessions helps mitigate security risks associated with unattended sessions, which could potentially be exploited. The recommended setting for this control is a timeout value of 900. The parameter governing this behavior is UserVars.HostClientSessionTimeout. The audit reads UserVars.HostClientSessionTimeout with esxcli and requires 900 seconds or less (0 = unlimited fails). Runs in the ESXi Shell (busybox sh) as root.

チェック方法

監査方法: シェルコマンド

shell

out=$(esxcli system settings advanced list -o /UserVars/HostClientSessionTimeout 2>/dev/null) || exit 1
v=$(printf '%s\n' "$out" | awk '$1=="Int" && $2=="Value:" {print $3; exit}')
case "$v" in ''|*[!0-9-]*) echo '/UserVars/HostClientSessionTimeout: no integer value'; exit 1 ;; esac
if [ "$v" -gt 0 ] && [ "$v" -le 900 ]; then echo compliant; else echo "/UserVars/HostClientSessionTimeout = $v (expected 1-900)"; fi

期待される出力: compliant

修正方法

修正方法: ガイダンスまたは IaC パッチ

1. Set the approved idle timeout with Get-VMHost | Get-AdvancedSetting -Name UserVars.HostClientSessionTimeout | Set-AdvancedSetting -Value <seconds> -Confirm:$false 2. Reconnect to the Host Client and confirm inactive sessions expire as expected.

プロパティ

オペレーティングシステム: すべて
タグ: vmwareesximanagement
参照: CIS VMware ESXi 9.0 Benchmark v1.0.0 - 3.17 Host must automatically terminate idle host client sessions

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shell

tmaegis scan --target vmware