#VU68723 UNIX symbolic link following in multipath-tools - CVE-2022-41973

Vulnerability identifier: #VU68723

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-41973

CWE-ID: CWE-61

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
multipath-tools
Other software / Other software solutions

Vendor: christophe.varoqui.free.fr

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a symlink following issue. A local user can create a specially crafted symbolic link to a critical file on the system and overwrite it with privileges of the application.

Successful exploitation of this vulnerability may result in privilege escalation.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

multipath-tools: 0.7.0 - 0.9.1

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External links
https://github.com/opensvc/multipath-tools/releases/tag/0.9.2
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2022-41973
https://seclists.org/fulldisclosure/2022/Oct/25

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?