CVE-2024-11716 Business logic in CTFd

Medium 5.3 Published Updated

Authenticated users can improperly switch teams during an ongoing competition, violating assignment rules and compromising competition integrity.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2024-11716?

CVE-2024-11716 is a medium-severity vulnerability in CTFd, published on 2 Jan 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

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.

Weakness: CWE-837

Which versions are affected by CVE-2024-11716?

How do I fix CVE-2024-11716?

No fix has been published for CVE-2024-11716 yet. Limit exposure of the affected software until one is available.

Is CVE-2024-11716 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-11716 exists.

Sources

Also known as GHSA-7wpf-4jwj-r2v3.

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