More Info:
It is not a good practice to use awsuser or admin as master username for your database connection. Instead, use unique alphanumeric username.Risk Level
LowAddress
SecurityCompliance Standards
PCIDSSTriage and Remediation
Remediation
Using Console
Using Console
To remediate the issue of the master username not being unique for an AWS RDS instance, you can follow these steps using the AWS Management Console:
- Sign in to the AWS Management Console: Go to the AWS Management Console (https://aws.amazon.com/console/) and sign in using your credentials.
- Navigate to RDS Service: Click on the “Services” dropdown menu at the top of the page and select “RDS” under the Database section.
- Select the RDS Instance: From the list of RDS instances, select the instance for which you want to change the master username.
- Modify the Master Username: In the RDS dashboard, locate the “Configuration” section and click on the “Modify” button.
- Change the Master Username: In the Modify DB Instance window, scroll down to the “Master Username” field and enter a unique username that you want to set as the new master username.
- Apply the Changes: Scroll down to the bottom of the page and click on the “Continue” button.
- Review and Apply Changes: Review the changes you are about to make and click on the “Modify DB Instance” button to apply the changes.
- Monitor the Modification: The modification process may take a few minutes to complete. You can monitor the progress in the RDS console.
- Verify the Changes: Once the modification is complete, verify that the master username has been successfully changed to a unique username.
Using CLI
Using CLI
To remediate the issue of the master username not being unique for an AWS RDS instance using the AWS CLI, follow these steps:
-
Identify the RDS Instance: First, identify the RDS instance for which you need to change the master username. You can list all your RDS instances using the following AWS CLI command:
-
Modify the Master Username: Once you have identified the RDS instance, you can modify the master username using the
modify-db-instancecommand. Replaceyour-db-instance-identifierwith the actual DB instance identifier andnew-master-usernamewith the unique username you want to set: -
Wait for the Modification to Complete: The modification process may take some time to complete. You can check the status of the modification using the
describe-db-instancescommand: -
Verify the Changes: Once the modification is complete, verify that the master username has been successfully updated by describing the DB instance:
Using Python
Using Python
To remediate the issue of non-unique master username for an AWS RDS instance using Python, you can follow these steps:
- Use the AWS SDK for Python (Boto3) to interact with AWS services programmatically. Make sure you have the Boto3 library installed in your Python environment.
-
Write a Python script that does the following:
a. Import the necessary libraries:
b. Initialize the RDS client:c. List all existing RDS instances:d. Check if the master username is unique:
- Run the Python script to check if the master username is unique. If it’s not unique, prompt the user to enter a new unique username or generate a unique username programmatically.
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If the user enters a new unique username, update the master username for the RDS instance using the modify_db_instance method:
- Verify that the master username has been successfully updated by describing the RDS instance again and checking the master username.