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Security Center default policy setting 'Monitor Network Security Groups' is not enabled Affecting Security Center service in Azure

Severity

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

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    Frameworks
    CIS-Azure HIPAA NIST-800-53 SOC-2
  • Snyk ID SNYK-CC-00668
  • credit Snyk Research Team
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Description

This policy setting recommends that network security groups be configured to control inbound and outbound traffic to VMs that have public endpoints.

How to fix?

Set policy_definition_id to /providers/Microsoft.Authorization/policyDefinitions/b0f33259-77d7-4c9e-aac6-3aabcfae693c and enforcementMode to Default.

Example Configuration

{
    "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
    "contentVersion": "1.0.0.0",
    "resources": [
        "type": "Microsoft.Authorization/policyAssignments",
            "apiVersion": "2022-06-01",
            "name": "allowed",
            "location": "[resourceGroup().location]",
            "identity": {
                "type": "SystemAssigned"
            },
            "properties": {
                "description": "Azure Security Center analyzes the traffic patterns of Internet facing virtual machines and provides Network Security Group rule recommendations that reduce the potential attack surface",
                "displayName": "Adaptive network hardening recommendations should be applied on internet facing virtual machines",
                "enforcementMode": "Default",
                "metadata": {},
                "parameters": {},
                "policyDefinitionId": "/providers/Microsoft.Authorization/policyDefinitions/08e6af2d-db70-460a-bfe9-d5bd474ba9d6"
            }
    ]
        }