More Info:

Microsoft Azure provides multiple distinct layers of encryption protection for virtual machine (VM) managed disks. VM managed disks are encrypted with Azure Storage encryption, also known as Server-Side Encryption (SSE), using platform-managed keys (PMK), to protect your data at rest and help you meet your organizational security and compliance commitments. By default, VM managed disk volumes (regardless of the VM attachment status) use platform-managed encryption keys. However, in order to have a more granular control over your data encryption/decryption process, it is strongly recommended to use your own keys (CMKs) instead of platform-managed keys (PMKs) for data (non-boot) disk volume encryption.

Risk Level

High

Address

Security

Compliance Standards

HIPAA, CISAZURE, CBP, ISO27001

Triage and Remediation

Remediation

Sure, here are the step-by-step instructions to remediate the misconfiguration of Server Side Encryption for Unattached Disk using CMK in Azure:

  1. Login to the Azure portal (https://portal.azure.com/).
  2. Navigate to the Azure Disk Encryption extension.
  3. Click on “Disk Encryption Sets” on the left-hand side menu.
  4. Select the disk encryption set that you want to remediate.
  5. Click on the “Key vault” tab.
  6. Select the Key Vault that you want to use for encryption.
  7. Click on “Save” to save the changes.

Once you have completed these steps, Azure will encrypt the unattached disks using the CMK specified in the Key Vault that you selected.