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feat(arm): CKV_AZURE_92 to Ensure that Virtual Machines use managed d…
…isks (#6455) * new arm policy for resources VMStorageOsDisk * New change to resource arm policy VMStorageOsDisk * New change to VMStorageOsDisk resource pool policy * New change to VMStorageOsDisk resource pool policy * New change to AzureDefenderOnKeyVaults resource pool policy * New change to VMStorageOsDisk resource pool policy * Apply suggestions from code review --------- Co-authored-by: ChanochShayner <[email protected]>
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from typing import Any, Dict | ||
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from checkov.common.models.enums import CheckResult, CheckCategories | ||
from checkov.arm.base_resource_value_check import BaseResourceCheck | ||
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class VMStorageOsDisk(BaseResourceCheck): | ||
def __init__(self) -> None: | ||
name = "Ensure that Virtual Machines use managed disks" | ||
id = "CKV_AZURE_92" | ||
supported_resources = ("Microsoft.Compute/virtualMachines",) | ||
categories = (CheckCategories.GENERAL_SECURITY,) | ||
super().__init__(name=name, id=id, categories=categories, supported_resources=supported_resources) | ||
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def scan_resource_conf(self, conf: Dict[str, Any]) -> CheckResult: | ||
properties = conf.get('properties') | ||
if not properties or not isinstance(properties, dict): | ||
return CheckResult.PASSED | ||
storage_profile = properties.get('storageProfile') | ||
if not storage_profile or not isinstance(storage_profile, dict): | ||
return CheckResult.PASSED | ||
os_disk = storage_profile.get('osDisk') | ||
data_disks = list(storage_profile.get('dataDisks', [])) | ||
if os_disk and isinstance(os_disk, dict) and "vhd" in os_disk: | ||
self.evaluated_keys = ['os_disk'] | ||
return CheckResult.FAILED | ||
if data_disks and any(isinstance(data_disk, dict) and "vhd" in data_disk for data_disk in data_disks): | ||
self.evaluated_keys = ['data_disks'] | ||
return CheckResult.FAILED | ||
self.evaluated_keys = ['os_disk'] if os_disk else [] | ||
if data_disks: | ||
self.evaluated_keys.append('data_disks') | ||
return CheckResult.PASSED | ||
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check = VMStorageOsDisk() |
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tests/arm/checks/resource/example_VMStorageOsDisk/fail.json
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{ | ||
"$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#", | ||
"contentVersion": "1.0.0.0", | ||
"resources": [ | ||
{ | ||
"type": "Microsoft.Compute/virtualMachines", | ||
"apiVersion": "2021-07-01", | ||
"name": "fail-linux", | ||
"location": "[resourceGroup().location]", | ||
"properties": { | ||
"hardwareProfile": { | ||
"vmSize": "Standard_DS1_v2" | ||
}, | ||
"storageProfile": { | ||
"imageReference": { | ||
"publisher": "Canonical", | ||
"offer": "UbuntuServer", | ||
"sku": "16.04-LTS", | ||
"version": "latest" | ||
}, | ||
"osDisk": { | ||
"name": "myosdisk3", | ||
"caching": "ReadWrite", | ||
"createOption": "FromImage", | ||
"managedDisk": { | ||
"storageAccountType": "Standard_LRS" | ||
}, | ||
"vhd": { | ||
"uri": "someURI" | ||
} | ||
} | ||
}, | ||
"osProfile": { | ||
"computerName": "hostname", | ||
"adminUsername": "testadmin", | ||
"adminPassword": "1111" | ||
}, | ||
"networkProfile": { | ||
"networkInterfaces": [ | ||
{ | ||
"id": "[resourceId('Microsoft.Network/networkInterfaces', 'main')]" | ||
} | ||
] | ||
} | ||
}, | ||
"tags": { | ||
"environment": "staging" | ||
} | ||
} | ||
], | ||
"parameters": { | ||
"prefix": { | ||
"type": "string", | ||
"defaultValue": "myprefix" | ||
} | ||
} | ||
} |
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tests/arm/checks/resource/example_VMStorageOsDisk/fail2.json
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{ | ||
"$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#", | ||
"contentVersion": "1.0.0.0", | ||
"resources": [ | ||
{ | ||
"type": "Microsoft.Compute/virtualMachines", | ||
"apiVersion": "2021-07-01", | ||
"name": "fail-windows", | ||
"location": "[resourceGroup().location]", | ||
"properties": { | ||
"hardwareProfile": { | ||
"vmSize": "Standard_DS1_v2" | ||
}, | ||
"storageProfile": { | ||
"imageReference": { | ||
"publisher": "MicrosoftWindowsServer", | ||
"offer": "WindowsServer", | ||
"sku": "2019-Datacenter", | ||
"version": "latest" | ||
}, | ||
"dataDisks": [ | ||
{ | ||
"name": "mydatadisk1", | ||
"caching": "ReadWrite", | ||
"createOption": "Empty", | ||
"managedDisk": { | ||
"storageAccountType": "Standard_LRS" | ||
}, | ||
"vhd": { | ||
"uri": "someURI" | ||
} | ||
} | ||
] | ||
}, | ||
"osProfile": { | ||
"computerName": "hostname", | ||
"adminUsername": "testadmin", | ||
"adminPassword": "1111" | ||
}, | ||
"networkProfile": { | ||
"networkInterfaces": [ | ||
{ | ||
"id": "[resourceId('Microsoft.Network/networkInterfaces', 'main')]" | ||
} | ||
] | ||
} | ||
}, | ||
"tags": { | ||
"environment": "staging" | ||
} | ||
} | ||
], | ||
"parameters": { | ||
"prefix": { | ||
"type": "string", | ||
"defaultValue": "myprefix" | ||
} | ||
} | ||
} |
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tests/arm/checks/resource/example_VMStorageOsDisk/pass.json
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{ | ||
"$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#", | ||
"contentVersion": "1.0.0.0", | ||
"resources": [ | ||
{ | ||
"type": "Microsoft.Compute/virtualMachines", | ||
"apiVersion": "2021-07-01", | ||
"name": "pass-linux", | ||
"location": "[resourceGroup().location]", | ||
"properties": { | ||
"hardwareProfile": { | ||
"vmSize": "Standard_DS1_v2" | ||
}, | ||
"storageProfile": { | ||
"imageReference": { | ||
"publisher": "Canonical", | ||
"offer": "UbuntuServer", | ||
"sku": "16.04-LTS", | ||
"version": "latest" | ||
}, | ||
"osDisk": { | ||
"name": "myosdisk1", | ||
"caching": "ReadWrite", | ||
"createOption": "FromImage", | ||
"managedDisk": { | ||
"storageAccountType": "Standard_LRS" | ||
} | ||
} | ||
}, | ||
"osProfile": { | ||
"computerName": "hostname", | ||
"adminUsername": "testadmin", | ||
"adminPassword": "1111" | ||
}, | ||
"networkProfile": { | ||
"networkInterfaces": [ | ||
{ | ||
"id": "[resourceId('Microsoft.Network/networkInterfaces', 'main')]" | ||
} | ||
] | ||
} | ||
}, | ||
"tags": { | ||
"environment": "staging" | ||
} | ||
} | ||
], | ||
"parameters": { | ||
"prefix": { | ||
"type": "string", | ||
"defaultValue": "myprefix" | ||
} | ||
} | ||
} |
54 changes: 54 additions & 0 deletions
54
tests/arm/checks/resource/example_VMStorageOsDisk/pass2.json
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{ | ||
"$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#", | ||
"contentVersion": "1.0.0.0", | ||
"resources": [ | ||
{ | ||
"type": "Microsoft.Compute/virtualMachines", | ||
"apiVersion": "2021-07-01", | ||
"name": "pass-windows", | ||
"location": "[resourceGroup().location]", | ||
"properties": { | ||
"hardwareProfile": { | ||
"vmSize": "Standard_DS1_v2" | ||
}, | ||
"storageProfile": { | ||
"imageReference": { | ||
"publisher": "MicrosoftWindowsServer", | ||
"offer": "WindowsServer", | ||
"sku": "2019-Datacenter", | ||
"version": "latest" | ||
}, | ||
"osDisk": { | ||
"name": "myosdisk2", | ||
"caching": "ReadWrite", | ||
"createOption": "FromImage", | ||
"managedDisk": { | ||
"storageAccountType": "Standard_LRS" | ||
} | ||
} | ||
}, | ||
"osProfile": { | ||
"computerName": "hostname", | ||
"adminUsername": "testadmin", | ||
"adminPassword": "1111" | ||
}, | ||
"networkProfile": { | ||
"networkInterfaces": [ | ||
{ | ||
"id": "[resourceId('Microsoft.Network/networkInterfaces', 'main')]" | ||
} | ||
] | ||
} | ||
}, | ||
"tags": { | ||
"environment": "staging" | ||
} | ||
} | ||
], | ||
"parameters": { | ||
"prefix": { | ||
"type": "string", | ||
"defaultValue": "myprefix" | ||
} | ||
} | ||
} |
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import unittest | ||
from pathlib import Path | ||
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from checkov.runner_filter import RunnerFilter | ||
from checkov.arm.checks.resource.VMStorageOsDisk import check | ||
from checkov.arm.runner import Runner | ||
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class TestVMStorageOsDisk(unittest.TestCase): | ||
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def test(self): | ||
# given | ||
test_files_dir = Path(__file__).parent / "example_VMStorageOsDisk" | ||
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# when | ||
report = Runner().run(root_folder=str(test_files_dir), runner_filter=RunnerFilter(checks=[check.id])) | ||
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# then | ||
summary = report.get_summary() | ||
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passing_resources = { | ||
"Microsoft.Compute/virtualMachines.pass-linux", | ||
"Microsoft.Compute/virtualMachines.pass-windows", | ||
} | ||
failing_resources = { | ||
"Microsoft.Compute/virtualMachines.fail-linux", | ||
"Microsoft.Compute/virtualMachines.fail-windows", | ||
} | ||
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passed_check_resources = {c.resource for c in report.passed_checks} | ||
failed_check_resources = {c.resource for c in report.failed_checks} | ||
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self.assertEqual(summary["passed"], 2) | ||
self.assertEqual(summary["failed"], 2) | ||
self.assertEqual(summary["skipped"], 0) | ||
self.assertEqual(summary["parsing_errors"], 0) | ||
self.assertEqual(summary["resource_count"], 4) # 3 unknown | ||
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self.assertEqual(passing_resources, passed_check_resources) | ||
self.assertEqual(failing_resources, failed_check_resources) | ||
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if __name__ == '__main__': | ||
unittest.main() |