Vulnerability identifier: #VU76589

Vulnerability risk: Medium

CVSSv3.1: 4.8 [CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-32074

CWE-ID: CWE-307

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Nextcloud user_oidc
Web applications / Modules and components for CMS

Vendor: Nextcloud

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to missing brute force protection. A remote user can brute force authentication on the application.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Nextcloud user_oidc: 1.3.1

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External links
http://github.com/nextcloud/user_oidc/pull/615
http://hackerone.com/reports/1954711
http://github.com/nextcloud/security-advisories/security/advisories/GHSA-x8mc-84wj-rf34

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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