Ensure 'Allow users to manage installed CA certificates' is set to 'Enabled: Disallow users from managing certificates'

AltaNivel 1Automatizadaedge

Descripción

This policy configures the level of access users have when managing CA certificates in Microsoft Edge. The recommended state for this setting is: Enabled: Disallow users from managing certificates. Rationale: Configuring this policy to the recommended state prevents users from unknowingly installing certificates that grant excessive trust, such as root CAs from unverified sources. It also prevents system-trusted certificates from being tampered with by users. 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\Microsoft\Edge:CACertificatemanagementAllowed (REG_DWORD); compliant when it is 2. Remediation writes 2 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

$v = (Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Edge' -Name 'CACertificatemanagementAllowed' -ErrorAction SilentlyContinue).'CACertificatemanagementAllowed'; if ($null -eq $v) { 'unset' } elseif (($null -ne $v -and @(2) -contains [int64]$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\Microsoft\Edge'; if (-not (Test-Path -Path $p)) { New-Item -Path $p -Force | Out-Null }; New-ItemProperty -Path $p -Name 'CACertificatemanagementAllowed' -Value 2 -PropertyType DWord -Force | Out-Null

Propiedades

Sistemas operativos: Cualquiera
Etiquetas: edgebrowsercis-l1
Referencia: CIS Microsoft Edge Benchmark v5.0.0 - 1.3.1 Ensure 'Allow users to manage installed CA certificates' is set to 'Enabled: Disallow users from managing certificates'

Verificar este host

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

shell

tmaegis scan --target edge