Deploy Conditional Access App Control for catalog apps with Azure AD
Microsoft Defender for Cloud Apps (previously known as Microsoft Cloud App Security) is now part of Microsoft 365 Defender. The Microsoft 365 Defender portal allows security admins to perform their security tasks in one location. This will simplify workflows, and add the functionality of the other Microsoft 365 Defender services. Microsoft 365 Defender will be the home for monitoring and managing security across your Microsoft identities, data, devices, apps, and infrastructure. For more information about these changes, see Microsoft Defender for Cloud Apps in Microsoft 365 Defender.
Access and session controls in Microsoft Defender for Cloud Apps work with applications from the Cloud app catalog and with custom applications. For a list of apps that are pre-onboarded and work out of the box, see Protect apps with Defender for Cloud Apps Conditional Access App Control.
Your organization must have the following licenses to use Conditional Access App Control:
- Azure Active Directory (Azure AD) Premium P1 or higher
- Microsoft Defender for Cloud Apps
Apps must be configured with single sign-on
Apps must use one of the following authentication protocols:
IdP Protocols Azure AD SAML 2.0 or OpenID Connect Other SAML 2.0
To deploy catalog apps
Follow the steps below to configure catalog apps to be controlled by Microsoft Defender for Cloud Apps Conditional Access App Control.
Configure integration with Azure AD
When configuring an application with SSO in Azure AD, or other identity providers, one field that may be listed as optional is the sign-on URL setting. Note that this field may be required for Conditional Access App Control to work.
Use the following steps to create an Azure AD Conditional Access policy that routes app sessions to Defender for Cloud Apps. For other IdP solutions, see Configure integration with other IdP solutions.
In Azure AD, browse to Security > Conditional Access.
On the Conditional Access pane, in the toolbar at the top, select New policy -> Create new policy.
On the New pane, in the Name textbox, enter the policy name.
Under Assignments, select Users or workload identities and assign the users and groups that will be onboarding (initial sign-on and verification) the app.
Under Assignments, select Cloud apps or actions and assign the apps and actions you want to control with Conditional Access App Control.
Under Access controls, select Session, select Use Conditional Access App Control, and choose a built-in policy (Monitor only (Preview) or Block downloads (Preview)) or Use custom policy to set an advanced policy in Defender for Cloud Apps, and then select Select.
Optionally, add conditions and grant controls as required.
Set Enable policy to On and then select Create.
Before proceeding, make sure to first sign out of existing sessions.
After you've created the policy, sign in to each app configured in that policy. Make sure you sign in using a user configured in the policy.
Defender for Cloud Apps will sync your policy details to its servers for each new app you sign in to. This may take up to one minute.
The preceding instructions helped you create a built-in Defender for Cloud Apps policy for catalog apps directly in Azure AD. In this step, verify that the access and session controls are configured for these apps.
In the Defender for Cloud Apps portal, select the settings cog , and then select Conditional Access App Control.
In the Conditional Access App Control apps table, look at the Available controls column and verify that both Access control or Azure AD Conditional Access, and Session control appear for your apps.
If the app isn’t enabled for session control, you can add it by selecting Onboard with session control and checking Use this app with session controls.
Once you're ready to enable the app for use in your organization's production environment, do the following steps.
In Defender for Cloud Apps, select the settings cog , and then select Conditional Access App Control.
In the list of apps, on the row in which the app you're deploying appears, choose the three dots at the end of the row, and then choose Edit app.
Select Use the app with session controls and then select Save.
First sign out of any existing sessions. Then, try to sign in to each app that was successfully deployed. Sign in using a user that matches the policy configured in Azure AD, or for a SAML app configured with your identity provider.
In the Defender for Cloud Apps portal, under Investigate, select Activity log, and make sure the login activities are captured for each app.
You can filter by clicking on Advanced, and then filtering using Source equals Access control.
It's recommended that you sign into mobile and desktop apps from managed and unmanaged devices. This is to make sure that the activities are properly captured in the activity log.
To verify that the activity is properly captured, select a single sign-on login activity so that it opens the activity drawer. Make sure the User agent tag properly reflects whether the device is a native client (meaning either a mobile or desktop app) or the device is a managed device (compliant, domain joined, or valid client certificate).
After it is deployed, you can't remove an app from the Conditional Access App Control page. As long as you don't set a session or access policy on the app, the Conditional Access App Control won't change any behavior for the app.
If you run into any problems, we're here to help. To get assistance or support for your product issue, please open a support ticket.
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