Vulnerability · Published Mar 30, 2023 · Assigned by GitHub_M

CVE-2023-28646App lockout in nextcloud Android app can be bypassed via thirdparty apps

Medium 4.4

In plain English

A medium-severity improper authentication in security-advisories from nextcloud. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 14% of all known vulnerabilities).

Severity (CVSS 3.1)4.4Medium

Exploit odds (30 days)0.2%top 86.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Nextcloud android is an android app for interfacing with the nextcloud home server ecosystem. In versions from 3.7.0 and before 3.24.1 an attacker that has access to the unlocked physical device can bypass the Nextcloud Android Pin/passcode protection via a thirdparty app. This allows to see meta information like sharer, sharees and activity of files. It is recommended that the Nextcloud Android app is upgraded to 3.24.1. There are no known workarounds for this vulnerability.

Affected products (as reported)

Vendor	Product	Versions
nextcloud	security-advisories	>= 3.7.0, < 3.24.1

Weakness: CWE-287, CWE-281 · Vector: CVSS:3.1/AV:P/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:L

References

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-c3rf-94h6-vj8v x_refsource_CONFIRM
https://github.com/nextcloud/android/pull/11242 x_refsource_MISC