使用 Azure 策略为所有资源类型启用 Azure Defender

Question

出于安全原因，我必须在 ASC 中为所有资源类型启用 Azure Defender。由于我们在 Azure 中确实有很多不同的订阅，而且数量还在增加，我们必须配置 Azure Policy 来强制执行。

已经有一个选项可以为所有资源启用 Azure Defender，但我没有在文档中找到任何有用的信息来通过 Azure Policy 启用它。

我有两个符合我要求的解决方案。第一个是，我们为所有资源类型启用 Azure Defender，另一个是我们只启用特定的资源类型（对我来说，目前只有开源关系数据库的资源类型是相关的）。

我只发现 initiative that deploys the Azure Defender to the database server, 但它不会在我的 Azure 安全中心内激活该选项。 Microsoft 是否有任何其他文档如何实现这一点？

Answer 1

我们有相同的要求。我使用“deployIfNotExists”创建了自定义策略以激活 ASC 标准层作为激活所需 Azure Defender 组件的先决条件。

"if" : {
  "allOf" : [
    {
      "field" : "type",
      "equals" : "Microsoft.Resources/subscriptions"
    }
  ]
},
"then" : {
  "effect" : "deployIfNotExists",
  "details" : {
    "type" : "Microsoft.Security/pricings",
    "deploymentScope" : "Subscription",
    "existenceScope" : "Subscription",
    "roleDefinitionIds" : [
      "/providers/Microsoft.Authorization/roleDefinitions/8e3af657-a8ff-443c-a75c-2fe8c4bcb635"
    ],
    "existenceCondition" : {
      "field" : "Microsoft.Security/pricings/pricingTier",
      "equals" : "Standard"
    },
    "deployment" : {
      "location" : "westeurope",
      "properties" : {
        "mode" : "incremental",
        "parameters" : {},
        "template" : {
          "$schema" : "https://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
          "contentVersion" : "1.0.0.0",
          "parameters" : {},
          "variables" : {},
          "resources" : [
            {
              "type" : "Microsoft.Security/pricings",
              "apiVersion" : "2017-08-01-preview",
              "name" : "default",
              "properties" : {
                "pricingTier" : "Standard"
              }
            },
            {
              "type" : "Microsoft.Security/pricings",
              "apiVersion" : "2018-06-01",
              "name" : "AppServices",
              "properties" : {
                "pricingTier" : "Standard"
              }
            },
            {
              "type" : "Microsoft.Security/pricings",
              "apiVersion" : "2018-06-01",
              "name" : "ContainerRegistry",
              "properties" : {
                "pricingTier" : "Standard"
              }
            },
            {
              "type" : "Microsoft.Security/pricings",
              "apiVersion" : "2018-06-01",
              "name" : "KeyVaults",
              "properties" : {
                "pricingTier" : "Standard"
              }
            },
            {
              "type" : "Microsoft.Security/pricings",
              "apiVersion" : "2018-06-01",
              "name" : "KubernetesService",
              "properties" : {
                "pricingTier" : "Standard"
              }
            },
            {
              "type" : "Microsoft.Security/pricings",
              "apiVersion" : "2018-06-01",
              "name" : "SqlServers",
              "properties" : {
                "pricingTier" : "Standard"
              }
            },
            {
              "type" : "Microsoft.Security/pricings",
              "apiVersion" : "2018-06-01",
              "name" : "SqlServerVirtualMachines",
              "properties" : {
                "pricingTier" : "Standard"
              }
            },
            {
              "type" : "Microsoft.Security/pricings",
              "apiVersion" : "2018-06-01",
              "name" : "StorageAccounts",
              "properties" : {
                "pricingTier" : "Standard"
              }
            },
            {
              "type" : "Microsoft.Security/pricings",
              "apiVersion" : "2018-06-01",
              "name" : "VirtualMachines",
              "properties" : {
                "pricingTier" : "Standard"
              }
            }
          ],
          "outputs" : {}
        }
      }
    }
  }
}

但这行不通。

Reason for non-compliance Current value must be equal to the target value.

Field Microsoft.Security/pricings/pricingTier

Path properties.pricingTier

Current value "Free"

Target value "Standard"

我们已经和微软开了相应的工单，但是还没有得到他们的有效帮助。打开工单时，我收到了这篇文章作为可能的解决方案，之前没有找到。或许对你有帮助。

https://techcommunity.microsoft.com/t5/azure-security-center/managing-security-center-at-scale-using-arm-templates-and-azure/ba-p/327761

Answer 2

Microsoft Defender for Cloud（Azure 安全中心）有 built-in Azure 策略来强制启用 Defender 计划。

对于单个订阅，您可以使用“Microsoft Defender for X should be enabled”推荐中的“强制”选项，这将带您进入相关策略创建页面：

或通过 Azure Policy portal，直接通过以下方式在订阅或管理组范围内分配相同的策略：“为要启用的配置 Azure Defender”策略。用“deployifnotexist”分配它，它将强制执行 Defender 计划状态。

使用 Azure 策略为所有资源类型启用 Azure Defender

Enable Azure Defender for all resource types using Azure Policies

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