CVE-2024-11716

MEDIUM5.3

While assignment of a user to a team (bracket) in CTFd should be possible only once, at the registration, a flaw in logic implementation allows an authenticated user to reset it's bracket and then pick a new one, joining another team while a competition is already ongoing

Published Jan 2, 2025

Modified 4 months ago

Details

While assignment of a user to a team (bracket) in CTFd should be possible only once, at the registration, a flaw in logic implementation allows an authenticated user to reset it's bracket and then pick a new one, joining another team while a competition is already ongoing. This issue impacts releases from 3.7.0 up to 3.7.4 and was addressed by pull request 2636 https://github.com/CTFd/CTFd/pull/2636 included in 3.7.5 release.

References

WEB

http://seclists.org/fulldisclosure/2024/Dec/21

ADVISORY

https://blog.ctfd.io/ctfd-3-7-5/

ADVISORY

https://cert.pl/en/posts/2025/01/CVE-2024-11716

WEB

https://ctfd.io/

FIX

https://github.com/CTFd/CTFd/pull/2636

DETECTION