Ensure access to APIs by service principals is restricted

MoyenneNiveau 1Revue manuellem365

Description

Use a service principal to access Fabric public APIs that include create, read, update, and delete (CRUD) operations, and are protected by a Fabric permission model. To allow an app to use service principal authentication, its service principal must be included in an allowed security group. You can control who can access service principals by creating dedicated security groups and using these groups in other tenant settings. The recommended state is Enabled for a subset of the organization or Disabled. Leaving API access unrestricted increases the attack surface in the event an adversary gains access to a Service Principal. APIs are a feature-rich method for programmatic access to many areas of Power Bi and should be guarded closely.

Méthode de vérification

Méthode d'audit: Revue manuelle

Cette recommandation ne peut pas être vérifiée automatiquement. Une analyse la liste avec ces instructions lorsque vous passez --include-manual.

To audit using the UI: 1. Navigate to Microsoft Fabric https://app.powerbi.com/admin-portal 2. Select Tenant settings. 3. Scroll to Developer settings. 4. Verify that Service principals can call Fabric public APIs is set to one of the following: o Disabled o Enabled with Specific security groups selected and defined. Important: If the organization doesn't actively use this feature it is recommended to keep it Disabled. To audit using PowerShell: 1. Inspect the results of the Get-CISFabricTenantSettings function from the section overview. 2. Locate the settingName ServicePrincipalAccessPermissionAPIs in the output. 3. Verify that the properties adhere to one of the following compliant configurations: o enabled is set to false. o enabled is set to true AND enabledSecurityGroups contains at least one security group. 4. If neither condition is met, the setting is non-compliant. Note: If the Specific security groups setting is not enabled then the enabledSecurityGroups property does not appear in the output.

Méthode de correction

Méthode de correction: Recommandation ou correctif d'infrastructure

To remediate using the UI: 1. Navigate to Microsoft Fabric https://app.powerbi.com/admin-portal 2. Select Tenant settings. 3. Scroll to Developer settings. 4. Set Service principals can call Fabric public APIs to one of the following: o Disabled o Enabled with Specific security groups selected and defined. Important: If the organization doesn't actively use this feature it is recommended to keep it Disabled.

Propriétés

Systèmes d'exploitation: Tous
Étiquettes: access-controlm365saas
Référence: CIS Microsoft 365 Foundations Benchmark v7.0.0 - 9.1.10 Ensure access to APIs by service principals is restricted