Advisory Details

May 17th, 2023

(Pwn2Own) Lexmark MC3224i snmpUTIL Improper Input Validation Remote Code Execution Vulnerability

ZDI-23-669
ZDI-CAN-19731

CVE ID CVE-2023-26069
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 MC3224i
VULNERABILITY DETAILS

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Lexmark MC3224i printers. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the snmpUTIL binary. The issue results from the lack of proper validation of configuration files. An attacker can leverage this vulnerability to execute code in the context of the admin user.

ADDITIONAL DETAILS Lexmark has issued an update to correct this vulnerability. More details can be found at:
https://publications.lexmark.com/publications/security-alerts/CVE-2023-26069.pdf
DISCLOSURE TIMELINE
  • 2023-01-24 - Vulnerability reported to vendor
  • 2023-05-17 - Coordinated public release of advisory
CREDIT Synacktiv
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