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Monitor Activity Log Alert should exist for Delete Network Security Group Affecting Monitor service in Azure

Severity

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

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    Frameworks
    CIS-Azure HIPAA ISO-27001 NIST-800-53 PCI-DSS SOC-2
  • Snyk ID SNYK-CC-00680
  • credit Snyk Research Team
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Description

Monitor Activity Log Alert should exist for Delete Network Security Group. Create an activity log alert for the Delete Network Security Group event. Monitoring for "Delete Network Security Group" events gives insight into network access changes and may reduce the time it takes to detect suspicious activity.

How to fix?

Set field operationName to Microsoft.Security/securitySolutions/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": "allowed",
            "location": "global",
            "properties": {
                "scopes": [
                    "[resourceGroup().id]"
                ],
                "condition": {
                    "allOf": [
                        {
                            "field": "category",
                            "equals": "Administrative"
                        },
                        {
                            "field": "operationName",
                            "equals": "Microsoft.Network/networkSecurityGroups/delete"
                        }
                    ]
                },
                "actions": {
                    "actionGroups": []
                },
                "enabled": true
            }
        }
    ]
}