Host must automatically deactivate shell services

보통레벨 1자동vmware

설명

Enabling the automatic deactivation of shell services minimizes the attack surface on the host. The time window for the ESXi Shell and SSH services' availability is defined by UserVars.ESXiShellTimeOut, after which these services are terminated. The recommended setting for this parameter is 3600. The audit reads UserVars.ESXiShellTimeOut with esxcli and requires 3600 seconds or less (0 disables it and fails). Runs in the ESXi Shell (busybox sh) as root.

점검 방법

감사 방식: 셸 명령

shell

out=$(esxcli system settings advanced list -o /UserVars/ESXiShellTimeOut 2>/dev/null) || exit 1
v=$(printf '%s\n' "$out" | awk '$1=="Int" && $2=="Value:" {print $3; exit}')
case "$v" in ''|*[!0-9-]*) echo '/UserVars/ESXiShellTimeOut: no integer value'; exit 1 ;; esac
if [ "$v" -gt 0 ] && [ "$v" -le 3600 ]; then echo compliant; else echo "/UserVars/ESXiShellTimeOut = $v (expected 1-3600)"; fi

예상 출력: compliant

조치 방법

조치 방식: 가이드 또는 인프라 패치

To set the timeout to the desired value, perform the following from the vSphere web client: 1. From the vSphere Web Client, select the host. 2. Click Configure then expand System. 3. Select Advanced System Settings then click Edit. 4. Enter ESXiShellTimeOut in the filter. 5. Set the value for this parameter is set to 3600 (1 hour) or less 6. Click OK. Note: A value of 0 disables the ESXiShellTimeOut. Alternately, run the following PowerCLI command: # Set UserVars.ESXiShellTimeOut to 3600 on all hosts Get-VMHost | Get-AdvancedSetting -Name 'UserVars.ESXiShellTimeOut' | Set- AdvancedSetting -Value "3600"

속성

운영 체제: 모두
태그: vmwareesximanagement
참고 자료: CIS VMware ESXi 9.0 Benchmark v1.0.0 - 3.9 Host must automatically deactivate shell services

이 호스트 점검하기

감사 권한이 있는 시스템에서 실행하세요. 스캔은 읽기 전용입니다.

shell

tmaegis scan --target vmware