Improper access control in Nextcloud Android App

1) Improper access control

EUVDB-ID: #VU63483

Risk: Low

CVSSv4.0: 0.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-29160

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

The vulnerability allows a local user to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to the information can be misused as sensitive token, images and user related details exist despite of user account being deleted. A local user can gain access to sensitive information on the system

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Nextcloud Android App: 3.0.0 - 3.18.1

CPE2.3

• cpe:2.3:a:nextcloud:android:3.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:nextcloud:android:3.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:nextcloud:android:3.0.2:*:*:*:*:*:*:*

External links

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-xcj9-3jch-qr2r/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.