Ryzen™ Master Monitoring SDK & AMD Ryzen™ Master Utility Incorrect Default Permission Vulnerabilities

Bulletin ID:   AMD-SB-9004
Potential Impact: Incorrect Default Permissions Leading to Arbitrary Execution
Severity: High

Summary

The AMD Ryzen™ Master Monitoring SDK is a public distribution that is designed to allow software developers to add processor and memory functions to their own utilities when used in conjunction with AMD Ryzen™ and AMD Ryzen™ Threadripper™ processor products.

AMD Ryzen™ Master Utility is a tool designed to unlock and customize the performance of AMD Ryzen processors. Ryzen Master™ is a software utility that allows you to access and customize advanced features of AMD Ryzen™ processors. It provides a user-friendly interface for overclocking, monitoring system performance, and adjusting various system settings such as power and curve optimization, and more.

A researcher reported an incorrect default permissions vulnerability within the AMD Ryzen™ Master Monitoring SDK Software & AMD Ryzen™ Master Utility. The researcher found that the Access Control List (ACL) permissions for the installation folders and their subfolders/files were not appropriately configured. This could allow lower privileged users to escalate privileges, resulting in arbitrary code execution.

Mitigation

Acknowledgement

AMD thanks Pwni for reporting these issues and engaging in coordinated vulnerability disclosure.  

Revisions

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