User Assigned Identity should have a valid principal

Medium Azure General userassignedidentities-user-assigned-identity-vali

Applies to

Microsoft.ManagedIdentity/userAssignedIdentities

What CGPulse checks

A resource passes this rule when principalId must be set true. Anything else is reported as a finding with the evaluated property value attached as evidence.

How to fix it

Verify the user-assigned identity has a valid service principal in Azure AD. In Azure Portal: Managed Identities > select identity > verify principal. See: https://learn.microsoft.com/en-us/entra/identity/managed-identities-azure-resources/overview

CLI

az identity show --ids "{id}" --query "principalId" -o tsv

Bicep

resource userIdentity 'Microsoft.ManagedIdentity/userAssignedIdentities@2023-01-31' = {{
  name: '{name}'
  location: resourceGroup().location
}}

Terraform

resource "azurerm_user_assigned_identity" "{name}" {
  name                = "{name}"
  resource_group_name = "{rg}"
  location            = var.location
}

Compliance frameworks

Cloud Security: Azure Foundations

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