ZDI-CAN-15844: (Pwn2Own) Lexmark MC3224i Web Configuration File Code Injection Remote Code Execution Vulnerability
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 HTTP server. The issue results from the lack of proper validation of a user-supplied string before using it to write to a configuration file. An attacker can leverage this vulnerability to execute code in the context of the www-data user.
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-CAN-15844?
ZDI-CAN-15844 is classified as a critical vulnerability due to the ability of unauthenticated attackers to execute arbitrary code.
How do I fix ZDI-CAN-15844?
To fix ZDI-CAN-15844, update the firmware of the Lexmark MC3224i printer to the latest version provided by Lexmark.
Who is affected by ZDI-CAN-15844?
All installations of the Lexmark MC3224i printer are affected by ZDI-CAN-15844.
What type of attacks can ZDI-CAN-15844 enable?
ZDI-CAN-15844 can enable network-adjacent attackers to execute arbitrary code without authentication.
Is authentication required to exploit ZDI-CAN-15844?
No, authentication is not required to exploit ZDI-CAN-15844, making it particularly dangerous.