Multiple vulnerabilities in PaperCut MF/NG

Published: 2023-04-24 | Updated: 2024-10-28

Risk	Critical
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2023-27350 CVE-2023-27351
CWE-ID	CWE-284 CWE-287
Exploitation vector	Network
Public exploit	Vulnerability #1 is being exploited in the wild. Vulnerability #2 is being exploited in the wild.
Vulnerable software	PaperCut NG Other software / Other software solutions PaperCut MF Other software / Other software solutions
Vendor	PaperCut Software

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Improper access control

EUVDB-ID: #VU75418

Risk: Critical

CVSSv4.0: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red]

CVE-ID: CVE-2023-27350

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions within the SetupCompleted class. A remote non-authenticated attacker can bypass authentication process and execute arbitrary code with SYSTEM privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

PaperCut NG: before 20.1.7, 21.2.11, 22.0.9, 20.1.7, 20.1.7

PaperCut MF: before 20.1.7, 21.2.11, 22.0.9, 20.1.7, 20.1.7

CPE2.3

External links

https://www.papercut.com/kb/Main/PO-1216-and-PO-1219
https://www.zerodayinitiative.com/advisories/ZDI-23-233/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.

2) Improper Authentication

EUVDB-ID: #VU75419