#VU68723 UNIX symbolic link following in multipath-tools


Published: 2022-10-26 | Updated: 2022-10-30

Vulnerability identifier: #VU68723

Vulnerability risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

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


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


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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


Latest bulletins with this vulnerability