Host must not suppress warnings about unmitigated hyperthreading vulnerabilities

OrtaDüzey 1Otomatikvmware

Açıklama

It is imperative to retain hyperthreading security warnings as they indicate unmitigated CPU vulnerabilities. The parameter governing this behavior is UserVars.SuppressHyperthreadWarning, with a recommended setting of 0. The audit reads UserVars.SuppressHyperthreadWarning with esxcli and requires 0. Runs in the ESXi Shell (busybox sh) as root.

Nasıl denetlenir

Denetim yöntemi: Kabuk komutu

shell

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

Beklenen çıktı: compliant

Nasıl düzeltilir

Düzeltme yöntemi: Kılavuz veya altyapı yaması

1. Utilize the administrative PowerCLI session: execute Get-VMHost | Get-AdvancedSetting -Name UserVars.SuppressHyperthreadWarning | Set-AdvancedSetting - Value 0 -Confirm:$false

Özellikler

İşletim sistemleri: Herhangi biri
Etiketler: vmwareesxibase
Referans: CIS VMware ESXi 9.0 Benchmark v1.0.0 - 2.9 Host must not suppress warnings about unmitigated hyperthreading vulnerabilities

Bu ana makineyi denetle

Bunu denetleme izniniz olan bir makinede çalıştırın. Tarama salt okunurdur.

shell

tmaegis scan --target vmware