Session fixation on public share page (NC-SA-2018-013)
25th October 2018
Risk level: Low
CVSS v3 Base Score: 3.1 (AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:N)
HackerOne report: 237184
A bug causing session fixation could potentially allow an attacker to obtain access to password protected shares.
- Nextcloud Server < 14.0.0 (CVE-2018-16463)
- Nextcloud Server < 13.0.3 (CVE-2018-16463)
- Nextcloud Server < 12.0.8 (CVE-2018-16463)
The error has been fixed.
It is recommended that all instances are upgraded to at least Nextcloud 14.0.0, Nextcloud 13.0.3 or Nextcloud 12.0.8.
The Nextcloud team thanks the following people for their research and responsible disclosure of the above advisory:
- Anonymous hacker - Vulnerability discovery and disclosure.
This advisory is licensed CC BY-SA 4.0.