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Policy Rule
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{
"properties": {
"displayName": "Audit Windows web servers that are not using secure communication protocols",
"policyType": "BuiltIn",
"mode": "Indexed",
"description": "Requires that prerequisites are deployed to the policy assignment scope. For details, visit https://aka.ms/gcpol. Machines are non-compliant if the registry key HKLM:\\SYSTEM\\CurrentControlSet\\Control\\SecurityProviders\\SCHANNEL\\Protocols includes protocols less secure than what is selected in the policy parameter.",
"metadata": {
"category": "Guest Configuration",
"version": "1.0.0",
"requiredProviders": [
"Microsoft.GuestConfiguration"
],
"guestConfiguration": {
"name": "AuditSecureProtocol",
"version": "1.*",
"configurationParameter": {
"MinimumTLSVersion": "[SecureWebServer]s1;MinimumTLSVersion"
}
}
},
"parameters": {
"IncludeArcMachines": {
"type": "String",
"metadata": {
"displayName": "Include Arc connected servers",
"description": "By selecting this option, you agree to be charged monthly per Arc connected machine."
},
"allowedValues": [
"true",
"false"
],
"defaultValue": "false"
},
"MinimumTLSVersion": {
"type": "String",
"metadata": {
"displayName": "Minimum TLS version",
"description": "The minimum TLS protocol version that should be enabled. Windows web servers with lower TLS versions will be marked as non-compliant."
},
"allowedValues": [
"1.1",
"1.2"
],
"defaultValue": "1.1"
}
},
"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": [
{
"value": "[parameters('IncludeArcMachines')]",
"equals": "true"
},
{
"field": "type",
"equals": "Microsoft.HybridCompute/machines"
},
{
"field": "Microsoft.HybridCompute/imageOffer",
"like": "windows*"
}
]
}
]
},
"then": {
"effect": "auditIfNotExists",
"details": {
"type": "Microsoft.GuestConfiguration/guestConfigurationAssignments",
"name": "AuditSecureProtocol",
"existenceCondition": {
"allOf": [
{
"field": "Microsoft.GuestConfiguration/guestConfigurationAssignments/complianceStatus",
"equals": "Compliant"
},
{
"field": "Microsoft.GuestConfiguration/guestConfigurationAssignments/parameterHash",
"equals": "[base64(concat('[SecureWebServer]s1;MinimumTLSVersion', '=', parameters('MinimumTLSVersion')))]"
}
]
}
}
}
}
},
"id": "/providers/Microsoft.Authorization/policyDefinitions/5752e6d6-1206-46d8-8ab1-ecc2f71a8112",
"type": "Microsoft.Authorization/policyDefinitions",
"name": "5752e6d6-1206-46d8-8ab1-ecc2f71a8112"
}
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