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Rule: DynamoDB Tables in Backup Plan

This rule ensures DynamoDB tables are included in a backup plan for data recovery and system integrity.

RuleDynamoDB tables should be in a backup plan
FrameworkNIST 800-53 Revision 5
Severity
Medium

Backup Plan for DynamoDB Tables (NIST 800-53 Revision 5)

Rule Description

Under NIST 800-53 Revision 5, it is recommended to have a backup plan in place for DynamoDB tables. This ensures data availability and protection in case of accidental deletion, corruption, or other unforeseen events. By implementing a backup plan, you can mitigate the risk of data loss and maintain the integrity of your DynamoDB tables.

Troubleshooting Steps (if applicable)

If you encounter any issues with the backup plan for DynamoDB tables, follow the troubleshooting steps below:

  1. 1.
    Verify IAM Permissions: Ensure that the user or role performing the backup has the necessary IAM permissions to access and back up the DynamoDB tables.
  2. 2.
    Check Backup Configuration: Review the backup configuration settings to ensure they align with your organization's requirements.
  3. 3.
    Verify Backup Frequency: Make sure that the backup frequency is set correctly to match your desired recovery point objective (RPO).
  4. 4.
    Validate Backup Storage: Confirm that sufficient storage is available for storing backups.
  5. 5.
    Monitor Backup Execution: Monitor the backup process regularly to identify any issues or failures.

Necessary Codes (if applicable)

To create and manage backups for DynamoDB tables, you can use the AWS Command Line Interface (CLI) or AWS SDKs. Here are some example codes for reference:

Creating a Backup:

aws dynamodb create-backup \
    --table-name <table_name> \
    --backup-name <backup_name>

Restoring from a Backup:

aws dynamodb restore-table-from-backup \
    --target-table-name <new_table_name> \
    --backup-arn <backup_arn>

Deleting a Backup:

aws dynamodb delete-backup \
    --backup-arn <backup_arn>

Step-by-step Guide for Remediation

Follow the steps below to implement and maintain a backup plan for DynamoDB tables:

  1. 1.
    Identify Critical Tables: Determine which DynamoDB tables contain critical data that requires regular backups.
  2. 2.
    Define Backup Frequency: Define the frequency at which backups should be taken based on business requirements and desired RPO.
  3. 3.
    Configure IAM Permissions: Ensure that the IAM user or role responsible for backups has the necessary permissions to access and create backups.
  4. 4.
    Enable Point-in-Time Recovery (PITR): Consider enabling PITR if your business requires granular recovery options beyond regular backups.
  5. 5.
    Configure Backup Retention: Set up a backup retention policy that aligns with your organization's data retention requirements.
  6. 6.
    Monitor Backup Execution: Regularly monitor the backup process to identify any failures, missed backups, or performance issues.
  7. 7.
    Perform Backup Testing: Periodically test the restore process from backups to ensure data integrity and backup reliability.
  8. 8.
    Review and Update: Regularly review and update the backup plan to accommodate changes in data volumes, table structures, or business requirements.
  9. 9.
    Document the Backup Plan: Document the backup plan and associated procedures for future reference and to onboard new team members.

Note: It is recommended to leverage AWS Backup or other third-party solutions to automate and streamline the backup process for DynamoDB tables.

By following these steps, you can establish a robust backup plan for your DynamoDB tables and ensure data availability and protection as per NIST 800-53 Revision 5 guidelines.

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