SUNIX Parallel Driver Privilege Escalation Vulnerability Allowing Arbitrary I/O Port Access

A vulnerability in the SUNIX Parallel Driver x64 version 10.1.0.0 has been identified in the driver file snxppamd.sys. This vulnerability allows low-privileged users to read and write arbitrary I/O ports by sending specially crafted IOCTL requests. Exploitation of this vulnerability could lead to privilege escalation, execution of code with elevated rights, and unauthorized information disclosure. Additionally, these signed drivers could be misused to circumvent the Microsoft driver-signing policy, enabling the deployment of malicious software.

Impact

Exploitation of this vulnerability could result in unauthorized access to I/O ports, allowing for privilege escalation, execution of high-privileged code, and potential information disclosure.