TMA-CHROME-2.3.1

Ensure 'Blocks external extensions from being installed' is set to 'Enabled'

ÉlevéeNiveau 1Automatiséechrome

Description

Enabling this setting blocks external extensions (an extension that is not installed from the Chrome Web Store) from being installed. The recommended state for this setting is: Enabled (1) Rationale: Allowing users to install extensions from other locations (not the Chrome Web Store) can lead to malicious extensions being installed. 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:BlockExternalExtensions (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.

Méthode de vérification

Méthode d'audit: Registre Windows

registry

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

Sortie attendue: compliant

Méthode de correction

Méthode de correction: Commande 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 'BlockExternalExtensions' -Value 1 -PropertyType DWord -Force | Out-Null

Propriétés

Systèmes d'exploitation: Tous
Étiquettes: chromebrowsercis-l1
Référence: CIS Google Chrome Benchmark v3.0.0 - 2.3.1 Ensure 'Blocks external extensions from being installed' is set to 'Enabled'

Vérifier cet hôte

Exécutez cette commande sur une machine que vous êtes autorisé à auditer. L'analyse est en lecture seule.

shell

tmaegis scan --target chrome