Control: 2.21 Ensure a log monitoring and alerts are set up for OSS bucket policy changes

Description

Real-time monitoring of API calls can be achieved by directing ActionTrail Logs to Log Service and establishing corresponding query and alarms. It is recommended that a query and alarm be established for changes to OSS bucket policies.

Remediation

Perform the following to ensure the log monitoring and alerts are set up for OSS bucket policy changes.

From Console

1. Logon to SLS Console.
2. Click Log Service Audit Service in the navigation pane.
3. Go to Access to Cloud Products > Global Configuration page.
   • Select a location of project for logs.
   • Check the Action Trail and configure a proper days.
   • Click Save to save the changes.
4. Go to Access to Cloud Products > Global Configurations click Central Project.
5. Select Log Management > Actiontrail Log.
6. In the search/analytics console, input below query

"event.eventName": PutBucketLifecycle or "event.eventName": PutBucketPolicy or "event.eventName": PutBucketCors or "event.eventName": PutBucketEncryption or "event.eventName": PutBucketReplication or "event.eventName":
DeleteBucketPolicy or "event.eventName": DeleteBucketCors or "event.eventName": DeleteBucketLifecycle or "event.eventName": DeleteBucketEncryption or "event.eventName": DeleteBucketReplication) | select bucket, count(1) as cnt

7. Create a dashboard and set alert for the query result.