SB2023042401 - Multiple vulnerabilities in PaperCut MF/NG

Description

This security bulletin contains information about 2 vulnerabilities.

1) Improper access control (CVE-ID: CVE-2023-27350)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: 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

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.

2) Improper Authentication (CVE-ID: CVE-2023-27351)

CWE-ID: CWE-287 - Improper Authentication

CVSSv4: 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

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error within the SecurityRequestFilter class. A remote attacker can bypass authentication process and gain unauthorized access to the application.

Remediation

Install update from vendor's website.

References

• https://www.papercut.com/kb/Main/PO-1216-and-PO-1219
• https://www.zerodayinitiative.com/advisories/ZDI-23-233/
• https://www.zerodayinitiative.com/advisories/ZDI-23-232/