CVE-2020-15480 : What You Need to Know

PassMark BurnInTest, OSForensics, and PerformanceTest are affected by a vulnerability that allows low-privilege users to execute arbitrary code and escalate privileges through the kernel driver.

Understanding CVE-2020-15480

This CVE identifies a security issue in PassMark BurnInTest, OSForensics, and PerformanceTest that could lead to privilege escalation.

What is CVE-2020-15480?

This vulnerability allows low-privilege users to read and write to arbitrary Model Specific Registers (MSRs) through the kernel driver, potentially resulting in arbitrary Ring-0 code execution and privilege escalation. The affected components are DirectIo32.sys and DirectIo64.sys.

The Impact of CVE-2020-15480

The vulnerability could be exploited by attackers to execute malicious code at the highest privilege level, compromising the security and integrity of the system.

Technical Details of CVE-2020-15480

PassMark BurnInTest, OSForensics, and PerformanceTest are affected by a critical vulnerability with the following technical details:

Vulnerability Description

The kernel driver exposes IOCTL functionality that allows unauthorized access to MSRs, enabling attackers to execute arbitrary code and escalate privileges.

Affected Systems and Versions

PassMark BurnInTest through version 9.1
OSForensics through version 7.1
PerformanceTest through version 10

Exploitation Mechanism

Attackers can exploit this vulnerability by leveraging the IOCTL functionality in the kernel driver to access and manipulate MSRs, leading to unauthorized code execution and privilege escalation.

Mitigation and Prevention

To address CVE-2020-15480 and enhance system security, consider the following mitigation strategies:

Immediate Steps to Take

Apply security patches provided by the software vendors promptly.
Restrict access to vulnerable systems to authorized users only.
Monitor system logs for any suspicious activities related to IOCTL requests.

Long-Term Security Practices

Regularly update and patch all software and drivers to prevent known vulnerabilities.
Implement the principle of least privilege to limit user access rights and minimize the impact of potential security breaches.

Patching and Updates

Stay informed about security updates and advisories from PassMark and related software vendors.
Ensure timely installation of patches and updates to mitigate the risk of exploitation.