Improper access control checks for single share previews (NC-SA-2018-014)
25th October 2018
Risk level: Low
CVSS v3 Base Score: 4.8 (AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N)
CWE: Improper Authentication (CWE-287)
HackerOne report: 231917
Description
A missing check could give unauthorized access to the previews of single file password protected shares.
Affected Software
- Nextcloud Server < 14.0.0 (CVE-2018-16467)
Action Taken
The error has been fixed.
Resolution
It is recommended that all instances are upgraded to Nextcloud 14.0.0.
Acknowledgements
The Nextcloud team thanks the following people for their research and responsible disclosure of the above advisory:
This advisory is licensed CC BY-SA 4.0.