Vulnerability identifier: #VU83358

Vulnerability risk: Low

CVSSv3.1: 3.7 [CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-48305

CWE-ID: CWE-312

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Nextcloud Server
Client/Desktop applications / Messaging software
Nextcloud Enterprise Server
Client/Desktop applications / Messaging software

Vendor: Nextcloud

Description

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

The vulnerability exists due to the log level is set to debug the user_ldap app logged user passwords in plaintext into the log file. A local administrator can gain access to sensitive information.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Nextcloud Server: 25.0.0 - 27.1.3

Nextcloud Enterprise Server: 25.0.0 - 27.0.2

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External links
http://github.com/nextcloud/security-advisories/security/advisories/GHSA-35p6-4992-w5fr

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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.