TMA-ESXI9-2.9

Host must not suppress warnings about unmitigated hyperthreading vulnerabilities

SrednjaNivo 1Automatskavmware

Opis

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.

Kako se proverava

Metod provere: Komanda ljuske

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

Očekivani izlaz: compliant

Kako se ispravlja

Metod ispravke: Smernica ili zakrpa infrastrukture

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

Svojstva

Operativni sistemi: Bilo koji
Oznake: vmwareesxibase
Referenca: CIS VMware ESXi 9.0 Benchmark v1.0.0 - 2.9 Host must not suppress warnings about unmitigated hyperthreading vulnerabilities

Proverite ovaj računar

Pokrenite ovo na računaru za koji imate dozvolu za proveru. Skeniranje radi u režimu samo za čitanje.

shell

tmaegis scan --target vmware