CVE-2019-7245 : What You Need to Know

TechPowerUp GPU-Z before version 2.23.0 was found to have a vulnerability in its GPU-Z.sys component. The exploitable driver permits a wrmsr instruction through an IOCTL, lacking appropriate filtering of the Model Specific Register (MSR). This flaw enables potential execution of Ring-0 code and privilege escalation through arbitrary MSR writes.

Understanding CVE-2019-7245

An issue was discovered in GPU-Z.sys in TechPowerUp GPU-Z before 2.23.0. The vulnerable driver exposes a wrmsr instruction via an IOCTL and does not properly filter the Model Specific Register (MSR). Allowing arbitrary MSR writes can lead to Ring-0 code execution and escalation of privileges.

What is CVE-2019-7245?

Vulnerability found in TechPowerUp GPU-Z before version 2.23.0
Allows execution of Ring-0 code and privilege escalation through arbitrary MSR writes

The Impact of CVE-2019-7245

Potential for unauthorized code execution at the highest privilege level
Risk of privilege escalation leading to unauthorized access

Technical Details of CVE-2019-7245

The following technical details outline the specifics of the vulnerability:

Vulnerability Description

Vulnerability in GPU-Z.sys component of TechPowerUp GPU-Z
Allows wrmsr instruction through an IOCTL without proper MSR filtering

Affected Systems and Versions

TechPowerUp GPU-Z versions before 2.23.0

Exploitation Mechanism

Lack of appropriate filtering of the Model Specific Register (MSR) allows arbitrary MSR writes

Mitigation and Prevention

Taking immediate steps and implementing long-term security practices can help mitigate the risks associated with CVE-2019-7245:

Immediate Steps to Take

Update TechPowerUp GPU-Z to version 2.23.0 or newer
Monitor system for any unauthorized changes or activities

Long-Term Security Practices

Regularly update and patch software to the latest versions
Implement least privilege access controls to limit potential damage

Patching and Updates

Apply patches and updates provided by TechPowerUp promptly to address the vulnerability