Description
MSI Feature Manager contains a local privilege escalation vulnerability in the KernCoreLib64.sys kernel driver that allows any locally logged-on user to perform arbitrary physical memory read/write and unrestricted I/O port operations by accessing exposed IOCTL handlers without administrator privileges. Attackers can exploit the accessible device object through IOCTL handlers to manipulate kernel objects, tamper with kernel-mode callbacks, bypass Protected Process Light protections, and disable security software.
Problem types
Exposed IOCTL with Insufficient Access Control
Product status
Any version
Credits
Turan Doruk Cerit
References
github.com/readmsr/MSI_FeatureManager_CVE (MSI_FeatureManager_CVE PoC - readmsr)
www.vulncheck.com/...privilege-escalation-via-ioctl-handlers