Allele Security Alert
ASA-2018-00100
Identifier(s)
ASA-2018-00100, CORE-2018-0007, CVE-2018-19323
Title
Driver allow non-privileged user access to MSR registers
Vendor(s)
Gigabyte
Product(s)
GIGABYTE APP Center
AORUS GRAPHICS ENGINE
XTREME GAMING ENGINE
OC GURU II
Affected version(s)
GIGABYTE APP Center v1.05.21 and previous
AORUS GRAPHICS ENGINE v1.33 and previous
XTREME GAMING ENGINE v1.25 and previous
OC GURU II v2.08
Fixed version(s)
Unknown
Proof of concept
Yes
Description
Default installation allows non-privileged user processes (even running at LOW INTEGRITY) to get a HANDLE and issue IOCTL codes to these drivers.
Technical details
GIO exposes functionality to read and write Machine Specific Registers (MSRs). This could be leveraged to execute arbitrary ring-0 code.
Credits
Diego Juarez (SecureAuth) and Leandro Cuozzo (SecureAuth)
Reference(s)
GIGABYTE Drivers Elevation of Privilege Vulnerabilities
https://www.secureauth.com/labs/advisories/gigabyte-drivers-elevation-privilege-vulnerabilities
[CORE-2018-0007] – GIGABYTE Driver Elevation of Privilege Vulnerabilities
https://seclists.org/fulldisclosure/2018/Dec/39
CVE-2018-19323
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-19323
CVE-2018-19323
https://nvd.nist.gov/vuln/detail/CVE-2018-19323
If there is any error in this alert or you wish a comprehensive analysis, let us know.
Last modified: February 3, 2019