#VU100602 Insecure Inherited Permissions in desktop - CVE-2024-46958

Vulnerability identifier: #VU100602

Vulnerability risk: Low

CVSSv4.0: 3.7 [CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-46958

CWE-ID: CWE-277

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
desktop
Other software / Other software solutions

Vendor: Nextcloud

Description

The vulnerability allows an attacker with physical access to escalate privileges on the system.

The vulnerability exists due to the desktop client creates folders with world-readable and world-writable permissions on Linux, privilege escalation.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

desktop: 3.13.1 - 3.13.3

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External links
https://github.com/nextcloud/desktop/issues/6863
https://github.com/nextcloud/desktop/pull/7092
https://github.com/nextcloud/desktop/pull/6949
https://github.com/nextcloud/desktop/compare/v3.13.3...v3.13.4
https://github.com/nextcloud/security-advisories/security/advisories

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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.