Rule: EBS Volumes Should Be Attached to EC2 Instances
Detailed guideline stating that EBS volumes must be linked to EC2 instances for compliance.
| Rule | EBS volumes should be attached to EC2 instances |
| Framework | NIST 800-171 Revision 2 |
| Severity | ✔ High |
NIST 800-171 Revision 2 - EBS Volume Attachment Rule
Rule Description
According to NIST 800-171 Revision 2, Amazon Elastic Block Store (EBS) volumes should be attached to Amazon EC2 instances to ensure the confidentiality, integrity, and availability of stored data. This rule is designed to protect sensitive information from unauthorized access or exposure.
Troubleshooting Steps
If there are any issues with attaching EBS volumes to EC2 instances, follow these troubleshooting steps:
- 1.Verify EC2 instance state: Check if the EC2 instance is running or stopped. Attachments can only be made to running instances.
- 2.Check for EBS volume availability: Ensure that the EBS volume you want to attach is available and not already attached to another EC2 instance.
- 3.Verify EC2 and EBS compatibility: Ensure that the EC2 instance type supports the EBS volume type you want to attach. For example, certain EC2 instance types may not support attaching NVMe-based EBS volumes.
- 4.Check security group rules: Make sure the security group associated with the EC2 instance allows the necessary inbound and outbound traffic for the EBS volume.
Necessary Codes
Here are some necessary codes that can be used to attach EBS volumes to EC2 instances.
AWS CLI Command
To attach an EBS volume to an EC2 instance using the AWS Command Line Interface (CLI), follow these steps:
- 1.Open the command line interface on your local machine.
- 2.Run the following AWS CLI command:
aws ec2 attach-volume --volume-id <volume-id> --instance-id <instance-id> --device <device-name>
Replace
<volume-id><instance-id><device-name>AWS Management Console
To attach an EBS volume to an EC2 instance using the AWS Management Console, follow these steps:
- 1.Open the Amazon EC2 console.
- 2.In the left navigation pane, select "Volumes".
- 3.Select the EBS volume you want to attach.
- 4.Choose "Actions", and then click "Attach Volume".
- 5.In the "Attach Volume" dialog box, select the EC2 instance to attach the volume to.
- 6.Enter the desired device name for the attachment.
- 7.Click "Attach".
Remediation Steps
To ensure compliance with NIST 800-171 Revision 2, follow these step-by-step remediation instructions:
- 1.Identify and select the appropriate EC2 instance to which the EBS volume should be attached.
- 2.Obtain the EBS volume ID that needs to be attached to the EC2 instance.
- 3.Open either the AWS CLI or the AWS Management Console.
- 4.If using the AWS CLI:
- Open the command line interface on your local machine.
- Run the AWS CLI command mentioned earlier in the "AWS CLI Command" section, replacing the
,<volume-id>
, and<instance-id>
placeholders with the correct values.<device-name>
- 5.If using the AWS Management Console:
- Open the Amazon EC2 console.
- Navigate to the "Volumes" section.
- Select the desired EBS volume.
- Click "Actions" and choose "Attach Volume".
- In the "Attach Volume" dialog box, select the appropriate EC2 instance.
- Enter the desired device name for the attachment.
- Click "Attach".
- 6.Verify that the EBS volume is successfully attached to the chosen EC2 instance.
By following these remediation steps, you will ensure compliance with the NIST 800-171 Revision 2 requirement of attaching EBS volumes to EC2 instances, thereby enhancing the security and protection of sensitive data stored on Amazon EBS volumes.