Monitor activity log alert does not exist for "Update Security Policy" events Affecting Monitor service in Azure

Snyk CCSS

Monitoring/ Policy

Is your environment affected by this misconfiguration?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Frameworks

CIS-AzureHIPAAISO-27001PCI-DSS

Snyk IDSNYK-CC-00686
creditSnyk Research Team

Report a new misconfiguration Found a mistake?

Description

Monitoring for "Update Security Policy" events gives insight into changes to security policy and may reduce the time it takes to detect suspicious activity.

How to fix?

Set field operationName to Microsoft.Security/policies/write 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.Security/policies/write"
                        }
                    ]
                },
                "actions": {
                    "actionGroups": []
                },
                "enabled": true
            }
        }
    ]
}

Set criteria.operation_name to Microsoft.Security/policies/write and set enabled to true or remove the attribute.

Example Configuration

resource "azurerm_monitor_activity_log_alert" "allowed" {
  name                = "ex-alert-a-686"
  resource_group_name = azurerm_resource_group.example686.name
  scopes              = [azurerm_resource_group.example686.id]

  criteria {
    operation_name = "Microsoft.Security/policies/write"
    category       = "Administrative"
  }
}