Privilege escalation in PaperCut NG/MF

1) Untrusted search path

EUVDB-ID: #VU84492

Risk: Low

CVSSv3.1: 5.8 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-6006

CWE-ID: CWE-426 - Untrusted Search Path

Exploit availability: No

Description

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

The vulnerability exists due to usage of an untrusted search path within the pc-pdl-to-image process. A local user can place a malicious binary into a specific location on the system and execute arbitrary code with escalated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

PaperCut NG: 10.0 - 22.1.4

PaperCut MF: 10 - 22.1.4

External links

http://www.papercut.com/kb/Main/Security-Bulletin-November-2023/
http://www.zerodayinitiative.com/advisories/ZDI-23-1798/

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.