Ensure 'Require online OCSP/CRL checks for local trust anchors' is set to 'Enabled'

MediaNivel 2Automatizadachrome

Descripción

Google Chrome performs revocation checking for server certificates that successfully validate and are signed by locally-installed CA certificates. If Google Chrome is unable to obtain revocation status information, such certificates will be treated as revoked ('hard-fail'). Disabled: Google Chrome uses existing online revocation-checking settings. The recommended state for this setting is: Enabled (1) Rationale: Certificates shall always be validated. Audit reads the Group Policy registry value and prints 'compliant', 'unset' (policy not configured, reported as FAIL) or the non-compliant value. Registry value: HKLM\SOFTWARE\Policies\Google\Chrome:RequireOnlineRevocationChecksForLocalAnchors (REG_DWORD); compliant when it is 1. Remediation writes 1 locally; in a domain set it through the ADMX so Group Policy does not revert it.

Cómo se verifica

Método de auditoría: Registro de Windows

registry

$v = (Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Google\Chrome' -Name 'RequireOnlineRevocationChecksForLocalAnchors' -ErrorAction SilentlyContinue).'RequireOnlineRevocationChecksForLocalAnchors'; if ($null -eq $v) { 'unset' } elseif (($null -ne $v -and @(1) -contains [int64]$v)) { 'compliant' } else { "non-compliant: $v" }

Salida esperada: compliant

Cómo se corrige

Método de corrección: Comando de shell

shell

$p = 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Google\Chrome'; if (-not (Test-Path -Path $p)) { New-Item -Path $p -Force | Out-Null }; New-ItemProperty -Path $p -Name 'RequireOnlineRevocationChecksForLocalAnchors' -Value 1 -PropertyType DWord -Force | Out-Null

Propiedades

Sistemas operativos: Cualquiera
Etiquetas: chromebrowsercis-l2
Referencia: CIS Google Chrome Benchmark v3.0.0 - 2.18 Ensure 'Require online OCSP/CRL checks for local trust anchors' is set to 'Enabled'

Verificar este host

Ejecute esto en un equipo que tenga permiso para auditar. El escaneo es de solo lectura.

shell

tmaegis scan --target chrome --level 2