last sync: 2021-Aug-04 14:59:26 UTC

Azure Policy definition

[Preview]: Configure supported Windows virtual machines to automatically enable Secure Boot

Name [Preview]: Configure supported Windows virtual machines to automatically enable Secure Boot
Azure Portal
Id 7cb1b219-61c6-47e0-b80c-4472cadeeb5f
Version 1.0.0-preview
details on versioning
Category Security Center
Microsoft docs
Description Configure supported Windows virtual machines to automatically enable Secure Boot to mitigate against malicious and unauthorized changes to the boot chain. Once enabled, only trusted bootloaders, kernel and kernel drivers will be allowed to run.
Mode Indexed
Type BuiltIn
Preview True
Deprecated FALSE
Effect Default: DeployIfNotExists
Allowed: (DeployIfNotExists, Disabled)
Used RBAC Role
Role Name Role Id
Virtual Machine Contributor 9980e02c-c2be-4d73-94e8-173b1dc7cf3c
History
Date/Time (UTC ymd) (i) Change type Change detail
2021-06-08 15:17:13 add 7cb1b219-61c6-47e0-b80c-4472cadeeb5f
Used in Initiatives none
JSON
{
  "properties": {
  "displayName": "[Preview]: Configure supported Windows virtual machines to automatically enable Secure Boot",
    "policyType": "BuiltIn",
    "mode": "Indexed",
    "description": "Configure supported Windows virtual machines to automatically enable Secure Boot to mitigate against malicious and unauthorized changes to the boot chain. Once enabled, only trusted bootloaders, kernel and kernel drivers will be allowed to run.",
    "metadata": {
      "category": "Security Center",
      "version": "1.0.0-preview",
      "preview": true
    },
    "parameters": {
      "effect": {
        "type": "String",
        "metadata": {
          "displayName": "Effect",
          "description": "Enable or disable the execution of the policy"
        },
        "allowedValues": [
          "DeployIfNotExists",
          "Disabled"
        ],
        "defaultValue": "DeployIfNotExists"
      }
    },
    "policyRule": {
      "if": {
        "allOf": [
          {
            "field": "type",
            "equals": "Microsoft.Compute/virtualMachines"
          },
          {
            "field": "Microsoft.Compute/virtualMachines/storageProfile.imageReference.offer",
            "like": "windows*"
          },
          {
            "field": "Microsoft.Compute/virtualMachines/securityProfile.uefiSettings",
            "exists": "true"
          },
          {
            "field": "Microsoft.Compute/virtualMachines/securityProfile.uefiSettings.secureBootEnabled",
            "notEquals": "true"
          }
        ]
      },
      "then": {
      "effect": "[parameters('effect')]",
        "details": {
          "type": "Microsoft.Compute/virtualMachines",
        "name": "[field('fullName')]",
          "existenceCondition": {
            "field": "Microsoft.Compute/virtualMachines/securityProfile.uefiSettings.secureBootEnabled",
            "equals": "true"
          },
          "roleDefinitionIds": [
            "/providers/microsoft.authorization/roleDefinitions/9980e02c-c2be-4d73-94e8-173b1dc7cf3c"
          ],
          "deployment": {
            "properties": {
              "mode": "incremental",
              "parameters": {
                "vmName": {
                "value": "[field('name')]"
                },
                "location": {
                "value": "[field('location')]"
                }
              },
              "template": {
                "$schema": "http://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
                "contentVersion": "1.0.0.0",
                "parameters": {
                  "vmName": {
                    "type": "string"
                  },
                  "location": {
                    "type": "string"
                  }
                },
                "resources": [
                  {
                  "name": "[parameters('vmName')]",
                  "location": "[parameters('location')]",
                    "type": "Microsoft.Compute/virtualMachines",
                    "apiVersion": "2020-12-01",
                    "properties": {
                      "securityProfile": {
                        "uefiSettings": {
                          "secureBootEnabled": "true"
                        },
                        "securityType": "TrustedLaunch"
                      }
                    }
                  }
                ]
              }
            }
          }
        }
      }
    }
  },
  "id": "/providers/Microsoft.Authorization/policyDefinitions/7cb1b219-61c6-47e0-b80c-4472cadeeb5f",
  "type": "Microsoft.Authorization/policyDefinitions",
  "name": "7cb1b219-61c6-47e0-b80c-4472cadeeb5f"
}