#VU100604 Improper Certificate Validation in desktop - CVE-2024-52510

Vulnerability identifier: #VU100604

Vulnerability risk: Low

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

CVE-ID: CVE-2024-52510

CWE-ID: CWE-295

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
desktop
Other software / Other software solutions

Vendor: Nextcloud

Description

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

The vulnerability exists due to the Desktop client behaves incorrectly if the initial end-to-end-encryption signature is empty. A remote administrator can gain access to sensitive information on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

desktop: 3.0.0 - 3.14.1

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External links
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-r4qc-m9mj-452v
https://github.com/nextcloud/desktop/pull/7333
https://github.com/nextcloud/desktop/commit/97539218e6f63c3a3fd1694cb7d8aef27c5910d7
https://hackerone.com/reports/2597504

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Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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