Improper Authentication in Nextcloud Android App - CVE-2023-28646

 

Improper Authentication in Nextcloud Android App - CVE-2023-28646

Published: April 4, 2023


Vulnerability identifier: #VU74349
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:P/AC:L/AT:P/PR:L/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-28646
CWE-ID: CWE-287
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: Nextcloud
Affected software:
Nextcloud Android App

Detailed vulnerability description

The vulnerability allows a local attacker to bypass authentication process.

The vulnerability exists due to an error when processing authentication requests in the App pin. An authenticated attacker with physical access to an unlocked device can bypass the Nextcloud Android Pin protection via a thirdparty app.


How to mitigate CVE-2023-28646

Install updates from vendor's website.

Sources