CVE Catalog

CVE-2017-15302

High
Published: Translated: NVD NIST

Summary

In CPUID CPU-Z through version 1.81, there are improper access rights to a kernel-mode driver that can lead to information disclosure or elevation of privileges. An arbitrary read of any physical address via ioctl 0x9C402604 allows any application on Windows, including sandboxed users, to issue an ioctl to this driver without validation.

Risk Assessment

The organization may be exposed to sensitive information disclosure and unauthorized privilege escalation by malicious applications. The lack of proper access controls increases the risk of attacks.

Recommendation

It is recommended to update CPUID CPU-Z to the latest version that addresses these access issues. Additionally, appropriate access control mechanisms for kernel-mode drivers should be implemented.

Related vulnerabilities

Original NVD description (English source)

In CPUID CPU-Z through 1.81, there are improper access rights to a kernel-mode driver (e.g., cpuz143_x64.sys for version 1.43) that can result in information disclosure or elevation of privileges, because of an arbitrary read of any physical address via ioctl 0x9C402604. Any application running on the system (Windows), including sandboxed users, can issue an ioctl to this driver without any validation. Furthermore, the driver can map any physical page on the system and returns the allocated map page address to the user: that results in an information leak and EoP. NOTE: the vendor indicates that the arbitrary read itself is intentional behavior (for ACPI scan functionality); the security issue is the lack of an ACL.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS