Policy: Azure > CIS v2.0 > 09 - Application Services > 9.11 - Ensure Azure Key Vaults are Used to Store Secrets > Attestation

By setting this policy, you attest that you have manually verified that it complies with the relevant section of the CIS Benchmark.

Remediation has 2 steps 1. Setup the Key Vault 2. Setup the App Service to use the Key Vault

Step 1: Set up the Key Vault

From Azure CLI

az keyvault create --name "<name>" --resource-group "<myResourceGroup>" --location myLocation

From Powershell

New-AzKeyvault -name <name> -ResourceGroupName <myResourceGroup> -Location <myLocation>

Step 2: Set up the App Service to use the Key Vault Sample JSON Template for App Service Configuration:

{ "resources":[ { "type":"Microsoft.Storage/storageAccounts", "name":"[variables('storageAccountName')]", }, { "type":"Microsoft.Insights/components", "name":"[variables('appInsightsName')]", }, { "type":"Microsoft.Web/sites", "name":"[variables('functionAppName')]", "identity":{ "type":"SystemAssigned" }, "resources":[ { "type":"config", "name":"appsettings", "dependsOn":[ "[resourceId('Microsoft.Web/sites', variables('functionAppName'))]", "[resourceId('Microsoft.KeyVault/vaults/', variables('keyVaultName'))]", "[resourceId('Microsoft.KeyVault/vaults/secrets', variables('keyVaultName'), variables('storageConnectionStringName'))]", "[resourceId('Microsoft.KeyVault/vaults/secrets', variables('keyVaultName'), variables('appInsightsKeyName'))]" ], "properties":{ "AzureWebJobsStorage":"[concat('@Microsoft.KeyVault(SecretUri=', reference(variables('storageConnectionStringResourceId')).secretUriWithVersio n, ')')]", "WEBSITE_CONTENTAZUREFILECONNECTIONSTRING":"[concat('@Microsoft.KeyVault(SecretUri=', reference(variables('storageConnectionStringResourceId')).secretUriWithVersio n, ')')]", "APPINSIGHTS_INSTRUMENTATIONKEY":"[concat('@Microsoft.KeyVault(SecretUri=', reference(variables('appInsightsKeyResourceId')).secretUriWithVersion, ')')]", "WEBSITE_ENABLE_SYNC_UPDATE_SITE":"true" } }, { "type":"sourcecontrols", "name":"web", "dependsOn":[ "[resourceId('Microsoft.Web/sites', variables('functionAppName'))]", "[resourceId('Microsoft.Web/sites/config', variables('functionAppName'), 'appsettings')]" ] }{ "type":"Microsoft.KeyVault/vaults", "name":"[variables('keyVaultName')]", ] }, "dependsOn":[ "[resourceId('Microsoft.Web/sites', variables('functionAppName'))]" ], "properties":{ "accessPolicies":[ { "tenantId":"[reference(concat('Microsoft.Web/sites/', variables('functionAppName'), '/providers/Microsoft.ManagedIdentity/Identities/default'), '2015-08-31- PREVIEW').tenantId]", "objectId":"[reference(concat('Microsoft.Web/sites/', variables('functionAppName'), '/providers/Microsoft.ManagedIdentity/Identities/default'), '2015-08-31- PREVIEW').principalId]", "permissions":{ "secrets":[ "get" ] } }"resources":[ { "type":"secrets" ] }, "name":"[variables('storageConnectionStringName')]", "dependsOn":[ "[resourceId('Microsoft.KeyVault/vaults/', variables('keyVaultName'))]", "[resourceId('Microsoft.Storage/storageAccounts', variables('storageAccountName'))]" ], "properties":{ "value":"[concat('DefaultEndpointsProtocol=https;AccountName=', variables('storageAccountName'), ';AccountKey=', listKeys(variables('storageAccountResourceId'),'2015-05-01-preview').key1)]" } }, { "type":"secrets", "name":"[variables('appInsightsKeyName')]", "dependsOn":[ "[resourceId('Microsoft.KeyVault/vaults/', variables('keyVaultName'))]", "[resourceId('Microsoft.Insights/components', variables('appInsightsName'))]" ], "properties":{ "value":"[reference(resourceId('microsoft.insights/components/', variables('appInsightsName')), '2015-05-01').InstrumentationKey]" } } ] } ] }

Once verified, enter the date that this attestation expires. Note that the date can not be further in the future than is specified in report level Maximum Attestation Duration policy. Set to a blank value to clear the attestation.