Azure Introduction
Azure Pricing
Azure Threats
OS Disks Lacking Encryption
More Info:
Encrypting the IaaS VMs OS disk (boot volume) ensures that its entire content is fully unrecoverable without a key and thus protects the volume from unwarranted reads.
Risk Level
High
Address
Security
Compliance Standards
HIPAA, HITRUST, SOC2, NISTCSF, PCIDSS
Triage and Remediation
Remediation
Here are the steps to remediate the OS Disks Lacking Encryption misconfiguration in AZURE using the AZURE console:
- Log in to the AZURE portal.
- Navigate to the Virtual Machines blade.
- Select the virtual machine that has the OS Disks Lacking Encryption misconfiguration.
- Click on the “Disks” option under the Settings section.
- Select the OS disk that you want to encrypt.
- Click on the “Disk Encryption” option under the “Settings” section.
- Click on the “Enable” button to enable the disk encryption.
- Choose the encryption type and the encryption key.
- Click on the “Save” button to save the changes.
Once the encryption is enabled, the OS disk will be encrypted, and the misconfiguration will be remediated. It is important to note that the encryption process may take some time to complete, depending on the size of the disk.
To remediate the misconfiguration of OS Disks lacking encryption in AZURE using AZURE CLI, you can follow the below steps:
-
Open the Azure CLI on your local machine or Azure Cloud Shell.
-
Run the following command to check if the encryption is enabled on the VM:
az vm encryption show --resource-group <resource-group-name> --name <vm-name>Replace
<resource-group-name>with the name of the resource group in which the VM is located, and<vm-name>with the name of the VM. -
If encryption is not enabled on the VM, run the following command to enable encryption:
az vm encryption enable --resource-group <resource-group-name> --name <vm-name> --disk-encryption-keyvault <key-vault-name> --key-encryption-keyvault <key-vault-name> --volume-type ALLReplace
<resource-group-name>with the name of the resource group in which the VM is located,<vm-name>with the name of the VM, and<key-vault-name>with the name of the key vault where encryption keys are stored. -
Once the command is executed successfully, the encryption process will start, and it may take some time depending on the size of the VM.
-
After the encryption process is complete, run the following command to verify that encryption is enabled:
az vm encryption show --resource-group <resource-group-name> --name <vm-name>This command will display the encryption status of the VM.
-
Finally, confirm that the OS disks are encrypted by logging into the VM and checking the disk properties.
By following these steps, you can remediate the misconfiguration of OS disks lacking encryption in Azure using Azure CLI.
To remediate the misconfiguration of OS Disks Lacking Encryption in AZURE using python, follow these steps:
- Install the Azure SDK for Python using the following command:
pip install azure-mgmt-compute
- Import the necessary modules:
from azure.identity import DefaultAzureCredential
from azure.mgmt.compute import ComputeManagementClient
- Authenticate to the Azure account using the
DefaultAzureCredentialclass:
credential = DefaultAzureCredential()
subscription_id = 'your-subscription-id'
compute_client = ComputeManagementClient(credential, subscription_id)
- Get a list of all the virtual machines in the subscription:
vm_list = compute_client.virtual_machines.list_all()
- For each virtual machine, check if the OS disk is encrypted or not:
for vm in vm_list:
os_disk = vm.storage_profile.os_disk
if not os_disk.encryption_settings:
# Encrypt the OS disk
encryption_settings = compute_client.disks.create_or_update_encryption_settings(
resource_group_name=vm.id.split('/')[4],
disk_name=os_disk.name,
encryption_settings={
"enabled": True
}
)
- Save the script and run it to remediate the misconfiguration.
Note: This script assumes that the virtual machines are using managed disks. If the virtual machines are using unmanaged disks, you will need to modify the script accordingly.