Control: 2.2.1 Ensure EBS Volume Encryption is Enabled in all Regions

Description

Elastic Compute Cloud (EC2) supports encryption at rest when using the Elastic Block Store(EBS) service. While disabled by default, forcing encryption at EBS volume creation is supported.

Default EBS volume encryption only applies to newly created EBS volumes. Existing EBS volumes are not converted automatically.

Encrypting data at rest reduces the likelihood that it is unintentionally exposed and can nullify the impact of disclosure if the encryption remains unbroken.

Remediation

From Console

Open the Amazon EC2 console using EC2
Under Account attributes, click EBS encryption.
Click Manage.
Click the Enable checkbox.
Click Update EBS encryption
Repeat for every region requiring the change.

From Command Line

aws --region <region> ec2 enable-ebs-encryption-by-default.

Verify that EbsEncryptionByDefault: true is displayed.
Review every region in-use.

Usage

Run the control in your terminal:

powerpipe control run aws_compliance.control.cis_v150_2_2_1

Snapshot and share results via Turbot Pipes:

powerpipe login
powerpipe control run aws_compliance.control.cis_v150_2_2_1 --share

SQL

This control uses a named query:

ebs_volume_encryption_at_rest_enabled