Getting Started with M365 on Prowler Cloud/App

Set up your M365 account to enable security scanning using Prowler Cloud/App.

Requirements

To configure your M365 account, you'll need:

1. Obtain a domain from the Entra ID portal.

2. Access Prowler Cloud/App and add a new cloud provider Microsoft 365.

3. Configure your M365 account:

   3.1 Create the Service Principal app.

   3.2 Grant the required API permissions.

   3.3 Assign the required roles to your user.

4. Add the credentials to Prowler Cloud/App.

Step 1: Obtain your Domain

Go to the Entra ID portal, then you can search for Domain or go to Identity > Settings > Domain Names.

Once you are there just select the domain you want to use.

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Step 2: Access Prowler Cloud/App

1. Go to Prowler Cloud or launch Prowler App

2. Navigate to Configuration > Cloud Providers

   

3. Click on Add Cloud Provider

   

4. Select Microsoft 365

   

5. Add the Domain ID and an optional alias, then click Next

   

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Step 3: Configure your M365 account

Create the Service Principal app

A Service Principal is required to grant Prowler the necessary privileges.

1. Access Microsoft Entra ID

   

2. Navigate to Applications > App registrations

   

3. Click + New registration, complete the form, and click Register

   

4. Go to Certificates & secrets > Client secrets > + New client secret

   

5. Fill in the required fields and click Add, then copy the generated value (that value will be AZURE_CLIENT_SECRET)

   

With this done you will have all the needed keys, summarized in the following table

Value	Description
Client ID	Application (client) ID
Client Secret	AZURE_CLIENT_SECRET
Tenant ID	Directory (tenant) ID

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Grant required Graph API permissions

Assign the following Microsoft Graph permissions:

• AuditLog.Read.All: Required for Entra service.
• Directory.Read.All: Required for all services.
• Policy.Read.All: Required for all services.
• SharePointTenantSettings.Read.All: Required for SharePoint service.
• User.Read (IMPORTANT: this is set as delegated): Required for the sign-in only if using user authentication.

Note

You can replace Directory.Read.All with Domain.Read.All is a more restrictive permission but you won't be able to run the Entra checks related with DirectoryRoles and GetUsers.

If you do this you will need to add also the Organization.Read.All permission to the service principal application in order to authenticate.

Follow these steps to assign the permissions:

1. Go to your App Registration > Select your Prowler App created before > click on API permissions

   

2. Click + Add a permission > Microsoft Graph > Application permissions

   

3. Search and select every permission below and once all are selected click on Add permissions:

   • AuditLog.Read.All: Required for Entra service.
   • Directory.Read.All
   • Policy.Read.All
   • SharePointTenantSettings.Read.All

   

   

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Grant PowerShell modules permissions

The permissions you need to grant depends on whether you are using user credentials or service principal to authenticate to the M365 modules.

Warning

Make sure you add the correct set of permissions for the authentication method you are using.

If using application(service principal) authentication

Warning

Currently Prowler Cloud only supports user authentication.

To grant the permissions for the PowerShell modules via application authentication, you need to add the necessary APIs to your app registration.

Warning

You need to have a license that allows you to use the APIs.

1. Add Exchange API:

   • Search and selectOffice 365 Exchange Online API in APIs my organization uses.

   

   • Select Exchange.ManageAsApp permission and click on Add permissions.

   

   You also need to assign the Exchange Administrator role to the app. For that go to Roles and administrators and in the Administrative roles section click here to go to the directory level assignment:

   

   Once in the directory level assignment, search for Exchange Administrator and click on it to open the assginments page of that role.

   

   Click on Add assignments, search for your app and click on Assign.

   You have to select it as Active and click on Assign to assign the role to the app.

   

2. Add Teams API:

   • Search and select Skype and Teams Tenant Admin API API in APIs my organization uses.

   

   • Select application_access permission and click on Add permissions.

   

3. Click on Grant admin consent for <your-tenant-name> to grant admin consent.

   

   The final result of permission assignment should be this:

   

Warning

Remember that if the user is newly created, you need to sign in with that account first, as Microsoft will prompt you to change the password. If you don’t complete this step, user authentication will fail because Microsoft marks the initial password as expired.

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If using user authentication (Currently Prowler Cloud only supports this method)

1. Search and select:

   • User.Read

   

2. Click Add permissions, then grant admin consent

   

   The final result of permission assignment should be this:

   

3. Assign required roles to your user

   Assign one of the following roles to your User:

   • Global Reader (recommended): this allows you to read all roles needed.
   • Exchange Administrator and Teams Administrator: user needs both roles but with this roles you can access to the same information as a Global Reader (here you only read so that's why we recomend that role).

   Follow these steps to assign the role:

   1. Go to Users > All Users > Click on the email for the user you will use

      

   2. Click Assigned Roles

      

   3. Click on Add assignments, then search and select:

      • Global Reader This is the recommended, if you want to use the others just search for them

      

   4. Click on next, then assign the role as Active, and click on Assign to grant admin consent

      

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Step 4: Add credentials to Prowler Cloud/App

1. Go to your App Registration overview and copy the Client ID and Tenant ID

   

2. Go to Prowler Cloud/App and paste:

   • Client ID
   • Tenant ID
   • AZURE_CLIENT_SECRET from earlier
   • M365_USER the user using the correct assigned domain, more info here
   • M365_PASSWORD the password of the user

   

3. Click Next

   

4. Click Launch Scan