HexBrain

Nextcloud · Report #1406926

bypass forced password protection via circles app

Validstatus
lowseverity
$100bounty
14upvotes
19 Jun 2022disclosed

Summary

Advisory at https://github.com/nextcloud/security-advisories/security/advisories/GHSA-pwjv-h37v-c4fx

How it was found

Summary:

A user can bypass password enforcement for link and email shares by using a circle

Steps To Reproduce:

  1. enable forced passwords for link shares and email shares as administrator in the share settings
  2. as user create a circle and add an e-mail-address
  3. share some file to that circle

Supporting Material/References:

Used version: Nextcloud Version 22.2.3 circles version 22.1.1

Impact

A user can create an link that is not password protected even if this is forced by the administrator.

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