📝 AWS EBS Attached Volume is not encrypted 🟢

• Contextual name: 📝 EBS Attached Volume is not encrypted 🟢
• ID: /ce/ca/aws/ec2/ebs-volume-encryption
• Located in: 📁 AWS EC2

Flags

• 🟢 Policy with categories
• 🟢 Policy with type
• 🟢 Production policy

Our Metadata

• Policy Type: COMPLIANCE_POLICY
• Policy Category:
  • SECURITY

Similar Policies

• AWS Security Hub
  • [[EC2.3] Attached Amazon EBS volumes should be encrypted at-rest]([EC2.3] Attached Amazon EBS volumes should be encrypted at-rest (https://docs.aws.amazon.com/securityhub/latest/userguide/ec2-controls.html#ec2-3)]

Logic

• 🧠 prod.logic.yaml 🟢
  • 📗 AWS EBS Volume
  • 🔌 AWS EBS Volume - object.extracts.yaml
  • 🧪 test-data.json

Description

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Description

Ensure that all attached AWS EBS volumes are encrypted at rest using AWS-managed or customer-managed keys. Encryption provides a critical layer of data protection and should be enforced for all in-use volumes.

Rational

Encrypting EBS volumes at rest helps safeguard sensitive data from unauthorized access in the event of physical compromise or internal misuse. Enforcing encryption for all attached volumes ensures that data is protected during operation and aligns with security best practices and compliance requirements.

Audit

This policy flags an AWS EBS Volume as INCOMPLIANT if the Encrypted checkbox is set to false and the Volume is currently attached to an EC2 instance.

Volumes that are not attached to any instance are marked as INAPPLICABLE.

Remediation

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Remediation

AWS EBS does not support in-place encryption of existing unencrypted volumes. To encrypt an unencrypted volume, you must create a snapshot of the volume and then use that snapshot to create a new encrypted volume.

Optionally, you can enable encryption by default to ensure that all future EBS volumes are automatically encrypted, including those created from unencrypted snapshots.

From Command Line

Enable Default Encryption

This ensures that all new volumes created in the specified region are encrypted by default:

aws ec2 enable-ebs-encryption-by-default --region {{region}}

Create a Snapshot of the Unencrypted Volume

aws ec2 create-snapshot \
    --volume-id {{volume-id}} \
    --description "{{Snapshot description}}"

Wait until the snapshot status is completed before proceeding.

Create a New Encrypted Volume from the Snapshot

aws ec2 create-volume 
    --snapshot-id {{snapshot-id}}
    --availability-zone {{us-east-1a}}
    --encrypted

policy.yaml

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Linked Framework Sections

Section	Sub Sections	Internal Rules	Policies	Flags
💼 AWS Foundational Security Best Practices v1.0.0 → 💼 [EC2.3] Attached Amazon EBS volumes should be encrypted at-rest			1
💼 Cloudaware Framework → 💼 Data Encryption			42
💼 FedRAMP High Security Controls → 💼 CM-3(6) Cryptography Management (H)			6
💼 FedRAMP High Security Controls → 💼 SC-7(10) Prevent Exfiltration (H)			6
💼 FedRAMP High Security Controls → 💼 SC-13 Cryptographic Protection (L)(M)(H)		16	24
💼 FedRAMP High Security Controls → 💼 SC-28 Protection of Information at Rest (L)(M)(H)	1	7	24
💼 FedRAMP High Security Controls → 💼 SC-28(1) Cryptographic Protection (L)(M)(H)		5	14
💼 FedRAMP Low Security Controls → 💼 SC-13 Cryptographic Protection (L)(M)(H)			24
💼 FedRAMP Low Security Controls → 💼 SC-28 Protection of Information at Rest (L)(M)(H)	1		24
💼 FedRAMP Low Security Controls → 💼 SC-28(1) Cryptographic Protection (L)(M)(H)			14
💼 FedRAMP Moderate Security Controls → 💼 SC-13 Cryptographic Protection (L)(M)(H)			24
💼 FedRAMP Moderate Security Controls → 💼 SC-28 Protection of Information at Rest (L)(M)(H)	1		24
💼 FedRAMP Moderate Security Controls → 💼 SC-28(1) Cryptographic Protection (L)(M)(H)			14
💼 NIST CSF v2.0 → 💼 PR.DS-01: The confidentiality, integrity, and availability of data-at-rest are protected			114
💼 NIST CSF v2.0 → 💼 PR.DS-02: The confidentiality, integrity, and availability of data-in-transit are protected			94
💼 NIST CSF v2.0 → 💼 PR.DS-10: The confidentiality, integrity, and availability of data-in-use are protected			108
💼 NIST SP 800-53 Revision 5 → 💼 CA-9(1) Internal System Connections _ Compliance Checks			20
💼 NIST SP 800-53 Revision 5 → 💼 CM-3(6) Configuration Change Control _ Cryptography Management			6
💼 NIST SP 800-53 Revision 5 → 💼 SC-7(10) Boundary Protection _ Prevent Exfiltration			6
💼 NIST SP 800-53 Revision 5 → 💼 SC-13 Cryptographic Protection	4		13
💼 NIST SP 800-53 Revision 5 → 💼 SC-28 Protection of Information at Rest	3	16	25
💼 NIST SP 800-53 Revision 5 → 💼 SC-28(1) Protection of Information at Rest _ Cryptographic Protection		10	14
💼 NIST SP 800-53 Revision 5 → 💼 SI-7(6) Software, Firmware, and Information Integrity _ Cryptographic Protection			12