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Monitor activity log alert does not exist for "Update Security Policy" 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-AzureHIPAAISO-27001PCI-DSS
  • Snyk IDSNYK-CC-00686
  • creditSnyk Research Team
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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
            }
        }
    ]
}