Description:
This policy deals with ,for designated users, they will be prompted to use their multi-factor authentication (MFA) process on logins.
Rationale:
Enabling multi-factor authentication is a recommended setting to limit the use of Administrative actions and to prevent intruders from changing settings.
Impact:
There is an increased cost, as Conditional Access policies require Azure AD Premium. Similarly, they may require additional overhead to maintain if users lose access to their MFA.
Audit:
From Azure Portal
1. From Azure Home select the Portal Menu and select Azure Active Directory.
2. Scroll down in the menu on the left, and select Security.
3. Select on the left side Conditional Access.
4. Select the policy you wish to audit.
5. View under Users and Groups the corresponding users and groups to whom the policy is applied.
6. View under Exclude to determine which Users and groups to whom the policy is not applied.
Remediation:
From Azure Portal
1. From Azure Home select the Portal Menu and select Azure Active Directory.
2. Select Security.
3. Select Conditional Access.
4. Click + New policy.
5. Enter a name for the policy.
6. Select Users or workload identities.
7. Under Include, select All users.
8. Under Exclude, check Users and groups.
9. Select users this policy should not apply to and click Select.
10.Select Cloud apps or actions.
11.Select Select apps.
12.Check the box next to Microsoft Azure Management and click Select.
13.Select Grant.
14.Under Grant access, check Require multifactor authentication and click Select.
15.Set Enable policy to Report-only.
16.Click Create.
After testing the policy in report-only mode, update the Enable policy setting from Report-only to On.
Default Value:
MFA is not enabled by default for administrative actions.
References: