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Policy Rule
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{
"properties": {
"displayName": "Deploy prerequisites to audit Windows VMs configurations in 'Security Options - Devices'",
"policyType": "BuiltIn",
"mode": "Indexed",
"description": "This policy creates a Guest Configuration assignment to audit Windows virtual machines with non-compliant settings in Group Policy category: 'Security Options - Devices'. It also creates a system-assigned managed identity and deploys the VM extension for Guest Configuration. This policy should only be used along with its corresponding audit policy in an initiative. For more information on Guest Configuration policies, please visit https://aka.ms/gcpol",
"metadata": {
"version": "1.2.0",
"category": "Guest Configuration",
"requiredProviders": [
"Microsoft.GuestConfiguration"
]
},
"parameters": {
"DevicesAllowedToFormatAndEjectRemovableMedia": {
"type": "String",
"metadata": {
"displayName": "Devices: Allowed to format and eject removable media",
"description": "Specifies who is allowed to format and eject removable NTFS media. You can use this policy setting to prevent unauthorized users from removing data on one computer to access it on another computer on which they have local administrator privileges."
},
"defaultValue": "0"
}
},
"policyRule": {
"if": {
"anyOf": [
{
"allOf": [
{
"field": "type",
"equals": "Microsoft.Compute/virtualMachines"
},
{
"anyOf": [
{
"field": "Microsoft.Compute/imagePublisher",
"in": [
"esri",
"incredibuild",
"MicrosoftDynamicsAX",
"MicrosoftSharepoint",
"MicrosoftVisualStudio",
"MicrosoftWindowsDesktop",
"MicrosoftWindowsServerHPCPack"
]
},
{
"allOf": [
{
"field": "Microsoft.Compute/imagePublisher",
"equals": "MicrosoftWindowsServer"
},
{
"field": "Microsoft.Compute/imageSKU",
"notLike": "2008*"
}
]
},
{
"allOf": [
{
"field": "Microsoft.Compute/imagePublisher",
"equals": "MicrosoftSQLServer"
},
{
"field": "Microsoft.Compute/imageOffer",
"notLike": "SQL2008*"
}
]
},
{
"allOf": [
{
"field": "Microsoft.Compute/imagePublisher",
"equals": "microsoft-dsvm"
},
{
"field": "Microsoft.Compute/imageOffer",
"equals": "dsvm-windows"
}
]
},
{
"allOf": [
{
"field": "Microsoft.Compute/imagePublisher",
"equals": "microsoft-ads"
},
{
"field": "Microsoft.Compute/imageOffer",
"in": [
"standard-data-science-vm",
"windows-data-science-vm"
]
}
]
},
{
"allOf": [
{
"field": "Microsoft.Compute/imagePublisher",
"equals": "batch"
},
{
"field": "Microsoft.Compute/imageOffer",
"equals": "rendering-windows2016"
}
]
},
{
"allOf": [
{
"field": "Microsoft.Compute/imagePublisher",
"equals": "center-for-internet-security-inc"
},
{
"field": "Microsoft.Compute/imageOffer",
"like": "cis-windows-server-201*"
}
]
},
{
"allOf": [
{
"field": "Microsoft.Compute/imagePublisher",
"equals": "pivotal"
},
{
"field": "Microsoft.Compute/imageOffer",
"like": "bosh-windows-server*"
}
]
},
{
"allOf": [
{
"field": "Microsoft.Compute/imagePublisher",
"equals": "cloud-infrastructure-services"
},
{
"field": "Microsoft.Compute/imageOffer",
"like": "ad*"
}
]
},
{
"allOf": [
{
"anyOf": [
{
"field": "Microsoft.Compute/virtualMachines/osProfile.windowsConfiguration",
"exists": "true"
},
{
"field": "Microsoft.Compute/virtualMachines/storageProfile.osDisk.osType",
"like": "Windows*"
}
]
},
{
"anyOf": [
{
"field": "Microsoft.Compute/imageSKU",
"exists": "false"
},
{
"allOf": [
{
"field": "Microsoft.Compute/imageSKU",
"notLike": "2008*"
},
{
"field": "Microsoft.Compute/imageOffer",
"notLike": "SQL2008*"
}
]
}
]
}
]
}
]
}
]
},
{
"allOf": [
{
"field": "type",
"equals": "Microsoft.HybridCompute/machines"
},
{
"field": "Microsoft.HybridCompute/imageOffer",
"like": "windows*"
}
]
}
]
},
"then": {
"effect": "deployIfNotExists",
"details": {
"roleDefinitionIds": [
"/providers/microsoft.authorization/roleDefinitions/b24988ac-6180-42a0-ab88-20f7382dd24c"
],
"type": "Microsoft.GuestConfiguration/guestConfigurationAssignments",
"name": "AzureBaseline_SecurityOptionsDevices",
"existenceCondition": {
"field": "Microsoft.GuestConfiguration/guestConfigurationAssignments/parameterHash",
"equals": "[base64(concat('Devices: Allowed to format and eject removable media;ExpectedValue', '=', parameters('DevicesAllowedToFormatAndEjectRemovableMedia')))]"
},
"deployment": {
"properties": {
"mode": "incremental",
"parameters": {
"vmName": {
"value": "[field('name')]"
},
"location": {
"value": "[field('location')]"
},
"type": {
"value": "[field('type')]"
},
"configurationName": {
"value": "AzureBaseline_SecurityOptionsDevices"
},
"DevicesAllowedToFormatAndEjectRemovableMedia": {
"value": "[parameters('DevicesAllowedToFormatAndEjectRemovableMedia')]"
}
},
"template": {
"$schema": "https://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
"contentVersion": "1.0.0.0",
"parameters": {
"vmName": {
"type": "string"
},
"location": {
"type": "string"
},
"type": {
"type": "string"
},
"configurationName": {
"type": "string"
},
"DevicesAllowedToFormatAndEjectRemovableMedia": {
"type": "string"
}
},
"resources": [
{
"condition": "[equals(toLower(parameters('type')), toLower('microsoft.hybridcompute/machines'))]",
"apiVersion": "2018-11-20",
"type": "Microsoft.HybridCompute/machines/providers/guestConfigurationAssignments",
"name": "[concat(parameters('vmName'), '/Microsoft.GuestConfiguration/', parameters('configurationName'))]",
"location": "[parameters('location')]",
"properties": {
"guestConfiguration": {
"name": "[parameters('configurationName')]",
"version": "1.*",
"configurationParameter": [
{
"name": "Devices: Allowed to format and eject removable media;ExpectedValue",
"value": "[parameters('DevicesAllowedToFormatAndEjectRemovableMedia')]"
}
]
}
}
},
{
"condition": "[equals(toLower(parameters('type')), toLower('Microsoft.Compute/virtualMachines'))]",
"apiVersion": "2018-11-20",
"type": "Microsoft.Compute/virtualMachines/providers/guestConfigurationAssignments",
"name": "[concat(parameters('vmName'), '/Microsoft.GuestConfiguration/', parameters('configurationName'))]",
"location": "[parameters('location')]",
"properties": {
"guestConfiguration": {
"name": "[parameters('configurationName')]",
"version": "1.*",
"configurationParameter": [
{
"name": "Devices: Allowed to format and eject removable media;ExpectedValue",
"value": "[parameters('DevicesAllowedToFormatAndEjectRemovableMedia')]"
}
]
}
}
},
{
"condition": "[equals(toLower(parameters('type')), toLower('Microsoft.Compute/virtualMachines'))]",
"apiVersion": "2019-07-01",
"type": "Microsoft.Compute/virtualMachines",
"identity": {
"type": "SystemAssigned"
},
"name": "[parameters('vmName')]",
"location": "[parameters('location')]"
},
{
"condition": "[equals(toLower(parameters('type')), toLower('Microsoft.Compute/virtualMachines'))]",
"apiVersion": "2019-07-01",
"name": "[concat(parameters('vmName'), '/AzurePolicyforWindows')]",
"type": "Microsoft.Compute/virtualMachines/extensions",
"location": "[parameters('location')]",
"properties": {
"publisher": "Microsoft.GuestConfiguration",
"type": "ConfigurationforWindows",
"typeHandlerVersion": "1.1",
"autoUpgradeMinorVersion": true,
"settings": {
},
"protectedSettings": {
}
},
"dependsOn": [
"[concat('Microsoft.Compute/virtualMachines/',parameters('vmName'),'/providers/Microsoft.GuestConfiguration/guestConfigurationAssignments/',parameters('configurationName'))]"
]
}
]
}
}
}
}
}
}
},
"id": "/providers/Microsoft.Authorization/policyDefinitions/6481cc21-ed6e-4480-99dd-ea7c5222e897",
"type": "Microsoft.Authorization/policyDefinitions",
"name": "6481cc21-ed6e-4480-99dd-ea7c5222e897"
}
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