CVE-2023-26067

This vulnerability allows local attackers to escalate privileges on affected installations of Lexmark MC3224i printers. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
The specific flaw exists within the lbtraceapp binary. The code loads a binary from an unsecured location. An attacker can leverage this vulnerability to escalate privileges to resources normally protected from the user.

An unauthenticated remote code execution vulnerability exists in the embedded webserver in certain Lexmark devices through 2023-02-19. The vulnerability is only exposed if, when setting up the printer or device, the user selects "Set up Later" when asked if they would like to add an Admin user. If no Admin user is created, the endpoint /cgi-bin/fax_change_faxtrace_settings is accessible without authentication. The endpoint allows the user to configure a number of different fax settings. A number of the configurable parameters on the page fail to be sanitized properly before being used in a bash eval statement, allowing for an unauthenticated user to run arbitrary commands.