cis-aws-database-3.6

DevOps & Security

Enable Encryption in Transit

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3.6 Enable Encryption in Transit (Manual)

Description

Amazon Relational Database uses SSL/TLS to encrypt data during transit. To secure your data in transit the individual should identify their client application and what is supported by SSL/TLS to configure it correctly.

Rationale

Encrypting data in transit prevents eavesdropping, man-in-the-middle attacks, and data interception between the application and the database.

Impact

Enabling encryption in transit ensures data confidentiality during transmission between the client application and the RDS instance.

Audit Procedure

Using AWS Console

Sign into the AWS Management Console
- Sign into the AWS Management Console at https://console.aws.amazon.com/ with your AWS account credentials.
Open the Amazon RDS Console
- Navigate to the service using the Find Services search bar or by directly accessing the console at https://console.aws.amazon.com/rds/.
Select the RDS Instance
- Choose the Amazon RDS instance you want to implement encryption in transit.
- Click on the instance name to access its details page.
- In the instance details page, navigate to the Configuration or Encryption & Security section.
Enable SSL/TLS
- Under the Connectivity or Encryption in Transit section
- Click the Modify or Edit option to enable SSL/TLS encryption.
- Select the option to enable SSL/TLS encryption.
- Choose the SSL/TLS certificate authority (CA) certificate option that best suits your needs:
  - If you have an existing certificate, select Use a certificate from ACM (AWS Certificate Manager) or Use a certificate from AWS Secrets Manager.
  - If you do not have a certificate, select Generate a new certificate.
- Click Continue or Save to apply the changes.
Verify SSL/TLS Encryption
- After enabling SSL/TLS encryption, monitor the encryption status of your RDS instance.
- In the RDS console, check the Connectivity or "Encryption in Transit" section to ensure that SSL/TLS encryption is enabled, and the status is "In Progress" or "Enabled."
Test SSL/TLS Encryption
- Connect to your RDS instance using a database client or application that supports SSL/TLS encryption.
- Configure the client or application to use SSL/TLS encryption by specifying the SSL/TLS certificate details.
- Verify that the connection is established successfully with SSL/TLS encryption.
Monitor and Manage SSL/TLS Certificates
- Regularly monitor the SSL/TLS certificates associated with your RDS instances.
- Manage certificate expiration and renewal to ensure uninterrupted SSL/TLS encryption.

Expected Result

All RDS instances should have SSL/TLS encryption enabled for connections, and clients should be configured to require encrypted connections.

Remediation

Using AWS Console

Follow the audit steps above to enable SSL/TLS encryption on the RDS instance. Configure the database parameter group to enforce SSL connections (e.g., rds.force_ssl=1 for PostgreSQL).

Default Value

SSL/TLS is supported by default on RDS instances, but enforcement of SSL-only connections must be configured manually.

References

https://aws.amazon.com/products/databases/

CIS Controls

Controls Version	Control	IG 1	IG 2	IG 3
v8	3.10 Encrypt Sensitive Data in Transit		x	x
v7	14.4 Encrypt All Sensitive Information in Transit		x	x

Profile

Level 1 | Manual