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Improper Enforcement of a Single, Unique Action

CVE-2024-11716

Medium
5.3/10

Summary

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.

  • LOW
  • NETWORK
  • NONE
  • LOW

CWE-837 - Improper Enforcement of a Single, Unique Action

The software requires that an actor should only be able to perform an action once, or to have only one unique action, but the software does not enforce or improperly enforces this restriction.

References

Advisory Timeline

  • Published