Advisory Details

January 31st, 2024

(Pwn2Own) Lexmark CX331adwe Missing Authentication Remote Code Execution Vulnerability

ZDI-24-084
ZDI-CAN-22520

CVE ID CVE-2023-50737
CVSS SCORE 8.8, AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AFFECTED VENDORS Lexmark
AFFECTED PRODUCTS CX331adwe
VULNERABILITY DETAILS

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Lexmark CX331adwe printers. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the implementation of authentication within the web interface. The issue results from the lack of authentication prior to allowing access to functionality. An attacker can leverage this vulnerability to execute code in the context of root.

ADDITIONAL DETAILS Lexmark has issued an update to correct this vulnerability. More details can be found at:
https://www.lexmark.com/en_us/solutions/security/lexmark-security-advisories.html
DISCLOSURE TIMELINE
  • 2023-11-09 - Vulnerability reported to vendor
  • 2024-01-31 - Coordinated public release of advisory
CREDIT Sina Kheirkhah (@SinSinology) of Summoning Team (@SummoningTeam)
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