| name | cis-azure-compute-2.1.13 |
| description | Ensure managed identities are configured |
| category | cis-azure-compute |
| version | 2.0.0 |
| author | cyberstrike-official |
| tags | ["cis","azure","app-service","managed-identity","entra-id","credential-management"] |
| cis_id | 2.1.13 |
| cis_benchmark | CIS Microsoft Azure Compute Services Benchmark v2.0.0 |
| tech_stack | ["azure"] |
| cwe_ids | [] |
| chains_with | [] |
| prerequisites | [] |
| severity_boost | {} |
Ensure managed identities are configured
Description
Managed identities from Microsoft Entra ID allow App Service apps to securely access other Azure services without the need to provision or rotate any secrets.
Rationale
Using managed identities with App Service apps eliminates the need to store and manage credentials to access Azure resources.
Impact
Minor administrative overhead to configure and manage role assignments for managed identities.
Audit Procedure
Using Azure Portal
- Go to
App Services.
- Click the name of an app.
- Under
Settings, click Identity.
- Ensure that in the
System assigned pane, the Status is set to On, and an Object (principal) ID is displayed, or that in the User assigned pane, a managed identity is listed.
- Repeat steps 1-4 for each app.
Using Azure CLI
Run the following command to list web apps:
az webapp list
For each web app, run the following command:
az webapp identity show --resource-group <resource-group-name> --name <app-name> --query type
Ensure the command returns SystemAssigned, UserAssigned, or both.
Using Azure PowerShell
Run the following command to list web apps:
Get-AzWebApp
Run the following command to get the web app in a resource group with a given name:
Get-AzWebapp -ResourceGroupName <resource-group-name> -Name <app-name>
Run the following command to get the assigned identity type for a web app:
$webapp.Identity.Type
Ensure the command returns SystemAssigned, UserAssigned, or both.
Expected Result
The identity type should return SystemAssigned, UserAssigned, or both.
Remediation
Using Azure Portal
- Go to
App Services.
- Click the name of an app.
- Under
Settings, click Identity.
- To add a system assigned managed identity: