Bypass lock protection in Android app (NC-SA-2019-004)
26th July 2019
Risk level: Low
CVSS v3 Base Score: 5.9 (AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N)
CWE: Authentication Bypass Using an Alternate Path or Channel (CWE-288)
HackerOne report: 490946
Description
Creating a fake multi-account and aborting the process would redirect the user to the default account of the device without asking for the lock pattern if one was set up.
Affected Software
- Nextcloud Android < 3.6.1 (CVE-2019-5455)
Action Taken
The error has been fixed.
Resolution
It is recommended that users upgrade to version 3.6.1.
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.