Monitor activity log alert is not configured for "Delete Policy Assignment" events Affecting Monitor service in Azure


Severity

0.0
medium
0
10
    Severity Framework
    Snyk CCSS
    Rule category
    Monitoring / Policy

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    Frameworks
    CIS-Azure
  • Snyk ID SNYK-CC-00693
  • credit Snyk Research Team

Description

Monitoring for "Delete Policy Assignment" events reduces the time for users to detect any unwanted changes to policy assignments.

How to fix?

Set field operationName to Microsoft.Authorization/policyAssignments/delete and set enabled to true.

Example Configuration

{
"$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
"contentVersion": "1.0.0.0",
"resources": [
  {
    "type": "Microsoft.Insights/activityLogAlerts",
    "apiVersion": "2017-04-01",
    "name": "allowed1",
    "location": "global",
    "properties": {
      "scopes": [
        "[subscription().id]"
      ],
      "condition": {
        "allOf": [
          {
            "field": "category",
            "equals": "Administrative"
          },
          {
            "field": "operationName",
            "equals": "Microsoft.Authorization/policyAssignments/delete"
          }
        ]
      },
      "actions": {
        "actionGroups": []
      },
      "enabled": true
    }
  }
]
}

References