Here are the key steps to automate the revocation of privileged roles in Azure AD:
- Use Azure AD Privileged Identity Management (PIM): PIM provides the ability to create access reviews for Azure AD roles. This allows you to regularly review privileged access and automatically revoke unnecessary permissions.
You can configure PIM to automatically expire eligible or active role assignments after a specified duration, such as 30 days or 8 hours.
PIM also keeps a 30-day audit history of all privileged role assignments or removals that you can review. - Implement Conditional Access policies: Use Azure AD Conditional Access to restrict access to privileged roles based on factors like location, device, or sign-in risk. This can help limit unnecessary access and trigger revocation of roles.
Require multi-factor authentication (MFA) for all admin accounts to protect against compromised credentials.
Define policies to block access from risky locations or devices. - Automate the revocation process with Logic Apps: You can create a custom Logic App workflow to automatically disable and revoke sessions for privileged accounts.
The search results provide an example Logic App called “Disable-AADPrivilegedAccount” that can be used for this purpose.
The Logic App requires sensitive permissions like the “Privileged Authenticator Admin” role to disable accounts, so careful consideration is needed. - Limit the scope of privileged roles: Assign privileged roles to administrative units or groups with a limited scope, rather than at the tenant level. This reduces the impact if a privileged account is compromised.
- Monitor and audit role assignments: Regularly review role assignments and remove any unnecessary privileges. Use the “Resource audit” log in PIM to track all privileged role changes.
By implementing these automated processes and policies, you can significantly reduce the risk of excessive privileged access in your Azure AD environment.