Does Conditional Access override per user MFA?
In the blog post, I thought to show how to easily transition from per-user based MFA to a Conditional Access based MFA. Show
Check Azure AD Premium licenseCheck first if your organization has either Azure AD Premium Plan 1 og 2. Log into Microsoft Azure. In the portal, navigate to Azure Active Directory > Overview. In my example below, Azure AD Premium P2 is shown. Check per-user MFA statusLog into Microsoft 365 admin center. Navigate to Users > Active Users > Multi-factor authentication. A new page will open, showing all the users, and their multi-factor autentication status. In the example below (in norwegian this one..), we have a couple of users who have MFA enabled, some enforced and some others in disabled state. Connect to Azure AD using PowerShellTo start our transition from per-user MFA to Conditional Access, you’ll need to start Windows PowerShell as an administrator and connect to Azure AD using the following in cmdlet:
This cmdlet is part of the MSOnline module. If you haven’t got this module installed in your system, you can install it by typing the following in your elevated PowerShell console:
Convert per-user MFA to Conditional Access based MFA with PowerShellWhen we are connected to Azure AD with PowerShell, Microsoft has luckily provided the community with a great script that we could use for helping us with the convertion.
Run the script to disable MFA for all users. You’ll find both the script and some great documentation by visiting this site on Microsoft Docs. Create MFA Conditional Access policyIn the previous step, you’ll disabled MFA for all users when running the PowerShell script. If some user logs in with their credentials at this time, they will not be asked for MFA. It’s time to create our new Conditional Access MFA Policy. Log in to the Azure portal . Open the menu and browse to Azure Active Directory > Security > Conditional Access. Click on New policy. Name your policy. In my example, I went for MFA All Users. Select All Users and All Cloud Apps. Under Access control > Grant, select Grant access, and enable Require multi-factor autentication. Enable the policy and click Save. In a few minutes our new Conditional policy will take affect. At this time, you’ll successfully moved from per-user MFA to Conditional Access based MFA. The last step is to verify the changes and confirm that it’s in working order. Verify the transitionAll users show the MFA status disabled on the Microsoft 365 Multi-Factor Autentication page. When logging into, for example portal.office.com, with an account that already had MFA configured, it will work again without need of completing the MFA setup again. Any user that did not have MFA enabled, or any new users created in the future will be asked to go through the MFA setup before they will be able to log in again, for example into portal.office.com as mentioned earlier. Does Conditional Access enable MFA?Azure AD Multi-Factor Authentication and Conditional Access policies give you the flexibility to require MFA from users for specific sign-in events.
Does Conditional Access override security defaults?If you've been using security defaults, you'll need to turn them off before using Conditional Access. You can use either security defaults or Conditional Access policies, but you can't use both at the same time.
Does Conditional Access require modern authentication?Next, you need to enable modern authentication in your Office 365 tenant because it's required for conditional access. Modern authentication is enabled by default on Office 2016 clients and is currently rolling out for Exchange Online and SharePoint Online.
What can be used to bypass MFA authentication in Azure?To create a one-time bypass, complete the following steps:. Sign in to the Azure portal as an administrator.. Search for and select Azure Active Directory, then browse to Security > MFA > One-time bypass.. Select Add.. If necessary, select the replication group for the bypass.. Enter the username as [email protected] .. |