Ensure third-party integrated applications cannot be registered by users

MediaNivel 1Automatizadam365

Descripción

Allowing every user to register applications enables persistence and phishing through attacker-controlled app registrations. Requires an already-connected Microsoft Graph session: Install-Module Microsoft.Graph; Connect-MgGraph -Scopes Policy.Read.All,Directory.Read.All,RoleManagement.Read.Directory (read-only scopes). The audit throws if no session exists.

Cómo se verifica

Método de auditoría: Comando de shell

shell

$ErrorActionPreference = 'Stop'; if (-not (Get-Command Get-MgContext -ErrorAction SilentlyContinue) -or -not (Get-MgContext)) { throw 'Not connected: run Connect-MgGraph first' }; $p = Get-MgPolicyAuthorizationPolicy -ErrorAction Stop; if ($p.DefaultUserRolePermissions.AllowedToCreateApps -eq $false) { 'compliant' } else { 'noncompliant' }

Salida esperada: compliant

Cómo se corrige

Método de corrección: Guía o parche de infraestructura

Entra admin center > Identity > Users > User settings > Users can register applications = No (or Update-MgPolicyAuthorizationPolicy with DefaultUserRolePermissions.AllowedToCreateApps = $false).

Propiedades

Sistemas operativos: Cualquiera
Etiquetas: m365identity
Referencia: CIS Microsoft 365 Foundations Benchmark v7.0.0 - Microsoft Entra ID / Users can register applications (verify section number for your release)

Verificar este host

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

shell

tmaegis scan --target m365