Vulnerability identifier: #VU82076

Vulnerability risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-45149

CWE-ID: CWE-307

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Talk
Client/Desktop applications / Messaging software

Vendor: Nextcloud

Description

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

The vulnerability exists due to the number of login attempts is not limited. A remote user can perform a brute-force attack and gain access to public talk conversation passwords.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Talk: 15.0.0 - 17.1.0

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External links
http://github.com/nextcloud/security-advisories/security/advisories/GHSA-7rf8-pqmj-rpqv
http://hackerone.com/reports/2094473
http://github.com/nextcloud/spreed/pull/10545

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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.