Advisory Details

May 17th, 2023

(Pwn2Own) Lexmark MC3224i pagemark Out-Of-Bounds Read Remote Code Execution Vulnerability

CVE ID	CVE-2023-26066
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 pagemark service. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated data structure. An attacker can leverage this vulnerability to execute arbitrary 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-2023-26066.pdf
DISCLOSURE TIMELINE	2023-01-24 - Vulnerability reported to vendor 2023-05-17 - Coordinated public release of advisory
CREDIT	NCC Group EDG (@alexjplaskett @saidelike @FidgetingBits @_mccaulay)

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