Vulnerability identifier: #VU62690

Vulnerability risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-29800

CWE-ID: CWE-367

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
networkd-dispatcher
Universal components / Libraries / Libraries used by multiple products

Vendor: clayton craft

Description

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

The vulnerability exists due to a race condition between the scripts being discovered and them being run. An local user can abuse this vulnerability to replace scripts that networkd-dispatcher believes to be owned by root to ones that are not. Along with vulnerability #VU62689 (CVE-2022-29799) this allows privilege escalation by overwriting arbitrary files on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

networkd-dispatcher: 1.0 - 2.1

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External links
http://gitlab.com/craftyguy/networkd-dispatcher/-/tags/2.2
http://www.microsoft.com/security/blog/2022/04/26/microsoft-finds-new-elevation-of-privilege-linux-vulnerability-nimbuspwn/

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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.