Ensure EBS Volume Encryption at Rest is Enabled Rule
This rule specifies that EBS volume encryption at rest should be enabled to enhance data security.
| Rule | EBS volume encryption at rest should be enabled |
| Framework | NIST 800-171 Revision 2 |
| Severity | ✔ Low |
Rule Description
This rule ensures that all Elastic Block Store (EBS) volumes in an environment are encrypted at rest, in compliance with the NIST 800-171 Revision 2 security control. Encryption at rest protects data stored on EBS volumes from unauthorized access in case the volumes are compromised or stolen.
Troubleshooting Steps
- 1.Check if the EBS volumes are using encryption by default. If yes, they are already encrypted at rest and comply with the rule. If not, continue troubleshooting.
- 2.Verify if the EBS volume encryption feature is enabled in the AWS account or the relevant cloud provider.
- 3.Determine the encryption status of each EBS volume. If any volume is not encrypted, it needs to be encrypted to comply with the rule.
Necessary Codes
There is no specific code provided for this rule. The configurations required to enable EBS volume encryption may vary depending on the cloud provider being used.
Step-by-Step Guide for Remediation
Follow these steps to enable EBS volume encryption and ensure compliance with the NIST 800-171 Revision 2 rule:
- 1.
Identify the cloud provider being used (AWS, Azure, Google Cloud, etc.).
- 2.
Determine the encryption mechanism offered by the cloud provider for EBS volumes.
- 3.
Ensure that you have the necessary permissions to make changes in the cloud provider's console or command line interface (CLI).
AWS:
- 1.
Sign in to the AWS Management Console.
- 2.
Go to the EC2 Dashboard.
- 3.
Select the desired EBS volume from the Volumes section.
- 4.
Click on the "Actions" button and choose "Modify Volume".
- 5.
Enable the "Encryption" option and select the desired encryption key.
- 6.
Click on "Modify" to save the changes.
- 7.
Repeat steps 3-6 for each EBS volume that needs to be encrypted.
Azure:
- 1.
Sign in to the Azure Portal.
- 2.
Go to the desired resource group.
- 3.
Select the desired VM which has the associated EBS volume.
- 4.
In the VM's settings, navigate to the "Disks" section.
- 5.
Select the disk that needs encryption.
- 6.
In the disk's settings, click on "Disk encryption" and enable encryption.
- 7.
Save the changes.
- 8.
Repeat steps 3-7 for each EBS volume that needs to be encrypted.
Google Cloud:
- 1.
Sign in to the Google Cloud Console.
- 2.
Go to the desired project.
- 3.
In the left sidebar, select "Compute Engine" and then "Disks".
- 4.
Find the desired disk that needs encryption.
- 5.
Click on the disk and navigate to the "Encryption" tab.
- 6.
Enable encryption and choose the encryption key.
- 7.
Save the changes.
- 8.
Repeat steps 3-7 for each EBS volume that needs to be encrypted.
Summary
Enabling EBS volume encryption at rest is a crucial security measure to protect sensitive data. This rule ensures compliance with the NIST 800-171 Revision 2 standard. By following the step-by-step guide, you can enable encryption for each EBS volume, ensuring that data remains secure even in the event of unauthorized access or data theft.