HexBrain

Nextcloud · Report #1954711

user_oidc app is missing bruteforce protection

Validstatus
mediumseverity
4upvotes
23 Jun 2023disclosed

Summary

SA: https://github.com/nextcloud/security-advisories/security/advisories/GHSA-x8mc-84wj-rf34

How it was found

Summary:

Various controllers of the user_oidc app are not bruteforce protected, allowing attackers to iterate over data until they find valid one.

  • Id4meController::login
  • Id4meController::code
  • LoginController::login
  • LoginController::code
  • LoginController::csingleLogoutService
  • LoginController::cbackChannelLogout

Impact

Authentication can be broken/bypassed

This report was disclosed publicly on HackerOne and belongs to its author and the program. See the original