Rule: All S3 Buckets Should Log S3 Data Events in CloudTrail

Rule Description

Remediation Steps

Step 1: Access the AWS Management Console

2. 1.
   Open a web browser and navigate to the AWS Management Console (https://console.aws.amazon.com).

Step 2: Access the CloudTrail Service

2. 1.
   In the AWS Management Console, search for "CloudTrail" in the service search bar, and click on the "CloudTrail" service.

Step 3: Create/Edit a Trail

2. 1.
   In the CloudTrail console, click on the "Trails" tab in the left navigation panel.
4. 2.
   Click on an existing trail associated with the regions containing the S3 buckets that need to have logging enabled. Alternatively, click on the "Create trail" button to create a new trail.
6. 3.
   If creating a new trail, provide a unique and descriptive name for the trail.
8. 4.
   Select the appropriate S3 bucket in which to store the CloudTrail logs. Ensure the selected bucket is located in the same AWS region as the S3 buckets you want to enable logging for.
10. 5.
    Enable the option "Data events" by checking the box next to it.
12. 6.
    Within "Data events", enable the checkbox for "Amazon S3".
14. 7.
    Optionally, select the specific S3 buckets you want to log data events for, or leave it as "All".
16. 8.
    Configure any other desirable settings for the trail, such as encryption or storage preferences.
18. 9.
    Click on the "Create" or "Save" button to create the trail or update the existing trail.

Step 4: Enable Logging for S3 Buckets

2. 1.
   In the AWS Management Console, search for "S3" in the service search bar, and click on the "S3" service.
4. 2.
   Click on the name of the S3 bucket you want to enable logging for.
6. 3.
   Click on the "Properties" tab for the selected bucket.
8. 4.
   Scroll down to the "Server access logging" section and click on the "Edit" button.
10. 5.
    Enable server access logging by checking the box next to "Enable logging".
12. 6.
    Specify the target bucket where the S3 access logs should be stored. This bucket can be the same as the CloudTrail log bucket or a different one.
14. 7.
    Optionally, adjust the log prefix to specify a folder hierarchy within the target bucket.
16. 8.
    Click on the "Save changes" button to enable logging for the S3 bucket.

Step 5: Verify Logging

2. 1.
   Wait for a few minutes to allow the changes to propagate.
4. 2.
   Access the CloudTrail console again and navigate to the "Event history" or "Insights" tab to search for S3 data events. Ensure that the events corresponding to the enabled S3 buckets are present in the logs.
6. 3.
   Confirm that the S3 access logs are being delivered and stored in the specified target bucket.

Troubleshooting

2. 1.
   Verify that the CloudTrail trail is properly configured with "Data events" enabled and the corresponding S3 bucket(s) selected.
4. 2.
   Ensure that the S3 bucket has logging enabled in the "Properties" tab, and that the target bucket is properly set.
6. 3.
   Confirm that the IAM roles or users with access to S3 buckets and CloudTrail have the required permissions to enable logging and access the necessary resources.
8. 4.
   Double-check if there are any S3 bucket policies or bucket ACLs blocking the delivery of CloudTrail logs or preventing the logging of S3 data events.
10. 5.
    Check the CloudTrail and S3 bucket logs for any error messages or issues related to the logging process.
12. 6.
    If using AWS CLI, ensure that the appropriate AWS CLI credentials are set up correctly, and the correct region is specified.
14. 7.
    If the issue persists, consult the AWS Documentation, or contact AWS Support for further assistance.

Conclusion