Information disclosure in Nextcloud Android App

1) Information disclosure

EUVDB-ID: #VU54297

Risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:P/AC:L/AT:N/PR:L/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-32695

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application. An authenticated attacker with physical access can use a malicious app to gain unauthorized access to sensitive information on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Nextcloud Android App: 1.0.0 - 3.16.0

CPE2.3

• cpe:2.3:a:nextcloud:android:1.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:nextcloud:android:1.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:nextcloud:android:1.0.3:*:*:*:*:*:*:*

External links

https://hackerone.com/reports/1142918
https://github.com/nextcloud/android/pull/8433
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-25m9-cf6c-qf2c

Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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