last sync: 2020-Oct-30 14:31:57 UTC

Azure Policy definition

IP Forwarding on your virtual machine should be disabled

Name IP Forwarding on your virtual machine should be disabled
Azure Portal
Id bd352bd5-2853-4985-bf0d-73806b4a5744
Version 2.0.0
details on versioning
Category Security Center
Microsoft docs
Description Enabling IP forwarding on a virtual machine's NIC allows the machine to receive traffic addressed to other destinations. IP forwarding is rarely required (e.g., when using the VM as a network virtual appliance), and therefore, this should be reviewed by the network security team.
Mode All
Type BuiltIn
Preview FALSE
Deprecated FALSE
Effect Default: AuditIfNotExists
Allowed: (AuditIfNotExists, Disabled)
Used RBAC Role none
History
Date/Time (UTC ymd) (i) Change type Change detail
2020-06-01 18:36:18 change Previous DisplayName: [Preview]: IP Forwarding on your virtual machine should be disabled
Used in Initiatives
Initiative DisplayName Initiative Id Initiative Category State
[Preview]: Azure Security Benchmark 42a694ed-f65e-42b2-aa9e-8052e9740a92 Regulatory Compliance Preview
[Preview]: Motion Picture Association of America (MPAA) 92646f03-e39d-47a9-9e24-58d60ef49af8 Regulatory Compliance Preview
Enable Monitoring in Azure Security Center 1f3afdf9-d0c9-4c3d-847f-89da613e70a8 Security Center GA
Json
{
  "properties": {
    "displayName": "IP Forwarding on your virtual machine should be disabled",
    "policyType": "BuiltIn",
    "mode": "All",
    "description": "Enabling IP forwarding on a virtual machine's NIC allows the machine to receive traffic addressed to other destinations. IP forwarding is rarely required (e.g., when using the VM as a network virtual appliance), and therefore, this should be reviewed by the network security team.",
    "metadata": {
      "version": "2.0.0",
      "category": "Security Center"
    },
    "parameters": {
      "effect": {
        "type": "String",
        "metadata": {
          "displayName": "Effect",
          "description": "Enable or disable the execution of the policy"
        },
        "allowedValues": [
          "AuditIfNotExists",
          "Disabled"
        ],
        "defaultValue": "AuditIfNotExists"
      }
    },
    "policyRule": {
      "if": {
        "field": "type",
        "in": [
          "Microsoft.Compute/virtualMachines",
          "Microsoft.ClassicCompute/virtualMachines"
        ]
      },
      "then": {
      "effect": "[parameters('effect')]",
        "details": {
          "type": "Microsoft.Security/assessments",
          "name": "c3b51c94-588b-426b-a892-24696f9e54cc",
          "existenceCondition": {
            "field": "Microsoft.Security/assessments/status.code",
            "in": [
              "Healthy"
            ]
          }
        }
      }
    }
  },
  "id": "/providers/Microsoft.Authorization/policyDefinitions/bd352bd5-2853-4985-bf0d-73806b4a5744",
  "type": "Microsoft.Authorization/policyDefinitions",
  "name": "bd352bd5-2853-4985-bf0d-73806b4a5744"
}