Ensure 'Allow Basic Authentication prompts from network proxies' is set to 'Disabled'

AltaNivel 1Automatizadaintune-office

Descripción

Apps such as Word and Excel allow users to use Basic authentication to connect to resources on web servers by sending usernames and passwords with each request. These credentials are often stored on the servers, making it easier for attackers to capture them and reuse them against other endpoints or services. The recommended state for this setting is: Disabled. Note: This policy setting only applies to subscription versions of Office, such as Microsoft 365 Apps for enterprise, and to subscription versions of Project and Visio. Note 2: This change doesn’t affect Outlook connecting to on-premises Exchange Server using Basic authentication. ... Audit: reads the registry value(s) basicauthproxybehavior that the Intune policy writes for every loaded user profile (HKEY_USERS) and prints compliant only when each satisfies the benchmark value.

Cómo se verifica

Método de auditoría: Registro de Windows

registry

$bad = @(); $bad += @(Get-ChildItem Registry::HKEY_USERS | Where-Object { $_.PSChildName -match '^S-1-5-21-\d+-\d+-\d+-\d+$' } | ForEach-Object { $v = (Get-ItemProperty -Path ('Registry::HKEY_USERS\' + $_.PSChildName + '\SOFTWARE\Policies\Microsoft\office\16.0\common\identity') -Name 'basicauthproxybehavior' -ErrorAction SilentlyContinue).'basicauthproxybehavior'; if (-not ($null -ne $v -and @(0) -contains [int64]$v)) { $_.PSChildName + ':basicauthproxybehavior=' + $v } }); if ($bad.Count -eq 0) { 'compliant' } else { 'non-compliant: ' + ($bad -join ', ') }

Salida esperada: compliant

Cómo se corrige

Método de corrección: Guía o parche de infraestructura

To establish the recommended state via configuration profiles, set the following Settings Catalog path to Disabled: Microsoft Office 2016\Security Settings\Allow Basic Authentication prompts from network proxies

Propiedades

Sistemas operativos: Cualquiera
Etiquetas: intune-officeintuneregistry
Referencia: CIS Microsoft Intune for Office Benchmark v1.1.0 - 2.3.27.5 Ensure 'Allow Basic Authentication prompts from network proxies' is set to 'Disabled'

Verificar este host

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

shell

tmaegis scan --target intune-office