codechecker vulnerable to authentication bypass when using specifically crafted URLs

Summary

Authentication bypass occurs when the API URL ends with Authentication, Configuration or ServerInfo. This bypass allows superuser access to all API endpoints other than Authentication. These endpoints include the ability to add, edit, and remove products, among others.

Details

All endpoints, apart from the /Authentication is affected by the vulnerability.

The vulnerability allows unauthenticated users to access all API functionality. You can look for the following pattern in the logs to check if the vulnerabilty was exploited:

Note that the url starts with v and contains a valid CodeChecker endpoint, but it ends in Authentication, Configuration or ServerInfo and it was made by an Anonymous user.

Impact

This authentication bypass allows querying, adding, changing, and deleting Products contained on the CodeChecker server, without authentication, by an anonymous user.