Amazon DocumentDB controls

These controls are related to Amazon DocumentDB resources.

These controls may not be available in all AWS Regions. For more information, see Availability of controls by Region.

[DocumentDB.1] Amazon DocumentDB clusters should be encrypted at rest

Related requirements: NIST.800-53.r5 CA-9(1), NIST.800-53.r5 CM-3(6), NIST.800-53.r5 SC-13, NIST.800-53.r5 SC-28, NIST.800-53.r5 SC-28(1), NIST.800-53.r5 SC-7(10), NIST.800-53.r5 SI-7(6)

Category: Protect > Data protection > Encryption of data at rest

Severity: Medium

Resource type: AWS::RDS::DBCluster

AWS Config rule: docdb-cluster-encrypted

Schedule type: Change triggered

Parameters: None

This control checks whether an Amazon DocumentDB cluster is encrypted at rest. The control fails if an Amazon DocumentDB cluster isn't encrypted at rest.

Data at rest refers to any data that's stored in persistent, non-volatile storage for any duration. Encryption helps you protect the confidentiality of such data, reducing the risk that an unauthorized user gets access to it. Data in Amazon DocumentDB clusters should be encrypted at rest for an added layer of security. Amazon DocumentDB uses the 256-bit Advanced Encryption Standard (AES-256) to encrypt your data using encryption keys stored in AWS Key Management Service (AWS KMS).

Remediation

You can enable encryption at rest when you create an Amazon DocumentDB cluster. You can't change encryption settings after creating a cluster. For more information, see Enabling encryption at rest for an Amazon DocumentDB cluster in the Amazon DocumentDB Developer Guide.

[DocumentDB.2] Amazon DocumentDB clusters should have an adequate backup retention period

Related requirements: NIST.800-53.r5 SI-12

Category: Recover > Resilience > Backups enabled

Severity: Medium

Resource type: AWS::RDS::DBCluster

AWS Config rule: docdb-cluster-backup-retention-check

Schedule type: Change triggered

Parameters:

Parameter	Description	Type	Allowed custom values	Security Hub default value
minimumBackupRetentionPeriod	Minimum backup retention period in days	Integer	7 to 35	7

This control checks whether an Amazon DocumentDB cluster has a backup retention period greater than or equal to the specified time frame. The control fails if the backup retention period is less than the specified time frame. Unless you provide a custom parameter value for the backup retention period, Security Hub uses a default value of 7 days.

Backups help you recover more quickly from a security incident and strengthen the resilience of your systems. By automating backups for your Amazon DocumentDB clusters, you'll be able to restore your systems to a point in time and minimize downtime and data loss. In Amazon DocumentDB, clusters have a default backup retention period of 1 day. This must be increased to a value between 7 and 35 days to pass this control.

Remediation

To change the backup retention period for your Amazon DocumentDB clusters, see Modifying an Amazon DocumentDB cluster in the Amazon DocumentDB Developer Guide. For Backup, choose the backup retention period.

[DocumentDB.3] Amazon DocumentDB manual cluster snapshots should not be public

Related requirements: NIST.800-53.r5 AC-21, NIST.800-53.r5 AC-3, NIST.800-53.r5 AC-3(7), NIST.800-53.r5 AC-4, NIST.800-53.r5 AC-4(21), NIST.800-53.r5 AC-6, NIST.800-53.r5 SC-7, NIST.800-53.r5 SC-7(11), NIST.800-53.r5 SC-7(16), NIST.800-53.r5 SC-7(20), NIST.800-53.r5 SC-7(21), NIST.800-53.r5 SC-7(3), NIST.800-53.r5 SC-7(4), NIST.800-53.r5 SC-7(9)

Category: Protect > Secure network configuration

Severity: Critical

Resource type: AWS::RDS::DBClusterSnapshot, AWS::RDS:DBSnapshot

AWS Config rule: docdb-cluster-snapshot-public-prohibited

Schedule type: Change triggered

Parameters: None

This control checks whether an Amazon DocumentDB manual cluster snapshot is public. The control fails if the manual cluster snapshot is public.

An Amazon DocumentDB manual cluster snapshot should not be public unless intended. If you share an unencrypted manual snapshot as public, the snapshot is available to all AWS accounts. Public snapshots may result in unintended data exposure.

Note

This control evaluates manual cluster snapshots. You can't share an Amazon DocumentDB automated cluster snapshot. However, you can create a manual snapshot by copying the automated snapshot, and then share the copy.

Remediation

To remove public access for Amazon DocumentDB manual cluster snapshots, see Sharing a snapshot in the Amazon DocumentDB Developer Guide. Programmatically, you can use the Amazon DocumentDB operation modify-db-snapshot-attribute. Set attribute-name as restore and values-to-remove as all.

[DocumentDB.4] Amazon DocumentDB clusters should publish audit logs to CloudWatch Logs

Related requirements: NIST.800-53.r5 AC-2(4), NIST.800-53.r5 AC-4(26), NIST.800-53.r5 AC-6(9), NIST.800-53.r5 AU-10, NIST.800-53.r5 AU-12, NIST.800-53.r5 AU-2, NIST.800-53.r5 AU-3, NIST.800-53.r5 AU-6(3), NIST.800-53.r5 AU-6(4), NIST.800-53.r5 CA-7, NIST.800-53.r5 SC-7(9), NIST.800-53.r5 SI-3(8), NIST.800-53.r5 SI-4(20), NIST.800-53.r5 SI-7(8)

Category: Identify > Logging

Severity: Medium

Resource type: AWS::RDS::DBCluster

AWS Config rule: docdb-cluster-audit-logging-enabled

Schedule type: Change triggered

Parameters: None

This control checks whether an Amazon DocumentDB cluster publishes audit logs to Amazon CloudWatch Logs. The control fails if the cluster doesn't publish audit logs to CloudWatch Logs.

Amazon DocumentDB (with MongoDB compatibility) allows you to audit events that were performed in your cluster. Examples of logged events include successful and failed authentication attempts, dropping a collection in a database, or creating an index. By default, auditing is disabled in Amazon DocumentDB and requires that you take action to enable it.

Remediation

To publish Amazon DocumentDB audit logs to CloudWatch Logs, see Enabling auditing in the Amazon DocumentDB Developer Guide.

[DocumentDB.5] Amazon DocumentDB clusters should have deletion protection enabled

Related requirements: NIST.800-53.r5 CA-9(1), NIST.800-53.r5 CM-2, NIST.800-53.r5 CM-2(2), NIST.800-53.r5 CM-3, NIST.800-53.r5 SC-5(2)

Category: Protect > Data protection > Data deletion protection

Severity: Medium

Resource type: AWS::RDS::DBCluster

AWS Config rule: docdb-cluster-deletion-protection-enabled

Schedule type: Change triggered

Parameters: None

This control checks whether an Amazon DocumentDB cluster has deletion protection enabled. The control fails if the cluster doesn't have deletion protection enabled.

Enabling cluster deletion protection offers an additional layer of protection against accidental database deletion or deletion by an unauthorized user. An Amazon DocumentDB cluster can't be deleted while deletion protection is enabled. You must first disable deletion protection before a delete request can succeed. Deletion protection is enabled by default when you create a cluster in the Amazon DocumentDB console.

Remediation

To enable deletion protection for an existing Amazon DocumentDB cluster, see Modifying an Amazon DocumentDB cluster in the Amazon DocumentDB Developer Guide. In the Modify Cluster section, choose Enable for Deletion protection.