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Policy Rule
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{
"properties": {
"displayName": "System updates should be installed on your machines",
"policyType": "BuiltIn",
"mode": "All",
"description": "Missing security system updates on your servers will be monitored by Azure Security Center as recommendations",
"metadata": {
"version": "1.0.0",
"category": "Security Center"
},
"parameters": {
"effect": {
"type": "String",
"metadata": {
"displayName": "Effect",
"description": "Enable or disable the execution of the policy"
},
"allowedValues": [
"AuditIfNotExists",
"Disabled"
],
"defaultValue": "AuditIfNotExists"
}
},
"policyRule": {
"if": {
"field": "type",
"in": [
"Microsoft.Compute/virtualMachines",
"Microsoft.ClassicCompute/virtualMachines"
]
},
"then": {
"effect": "[parameters('effect')]",
"details": {
"type": "Microsoft.Security/complianceResults",
"name": "systemUpdates",
"existenceCondition": {
"field": "Microsoft.Security/complianceResults/resourceStatus",
"in": [
"OffByPolicy",
"Healthy"
]
}
}
}
}
},
"id": "/providers/Microsoft.Authorization/policyDefinitions/86b3d65f-7626-441e-b690-81a8b71cff60",
"type": "Microsoft.Authorization/policyDefinitions",
"name": "86b3d65f-7626-441e-b690-81a8b71cff60"
}
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