Description

Require administrators or appropriately delegated users to register third-party applications.

Rationale

It is recommended to only allow an administrator to register custom-developed applications. This ensures that the application undergoes a formal security review and approval process prior to exposing Microsoft Entra ID data. Certain users like developers or other high-request users may also be delegated permissions to prevent them from waiting on an administrative user. Your organization should review your policies and decide your needs.

Impact

Enforcing this setting will create additional requests for approval that will need to be addressed by an administrator. If permissions are delegated, a user may approve a malevolent third party application, potentially giving it access to your data.

Audit

This policy marks an Azure Active Directory as INCOMPLIANT if the related Active Directory Auth Policy has Default Permission: Create Apps set to Enabled. This field corresponds to the Users can register applications setting in the Microsoft Entra admin center’s User settings when enabled (set to Yes).

Default Value

By default, Users can register applications is set to Yes.

References

1. https://learn.microsoft.com/en-us/entra/identity/role-based-access-control/delegate-app-roles#restrict-who-can-create-applications
2. https://learn.microsoft.com/en-us/entra/identity-platform/how-applications-are-added#who-has-permission-to-add-applications-to-my-azure-ad-instance
3. https://learn.microsoft.com/en-us/security/benchmark/azure/mcsb-governance-strategy#gs-6-define-and-implement-identity-and-privileged-access-strategy
4. https://learn.microsoft.com/en-us/security/benchmark/azure/mcsb-privileged-access#pa-1-separate-and-limit-highly-privilegedadministrative-users
5. https://learn.microsoft.com/en-us/powershell/module/microsoft.graph.identity.signins/get-mgpolicyauthorizationpolicy?view=graph-powershell-1.0