Allele Security Alert
ASA-2018-00099
Identifier(s)
ASA-2018-00099, CORE-2018-0007, CVE-2018-19322
Title
Driver allow non-privileged user access to port mapped I/O
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
Both GPCI and GIO expose functionality to read/write data from/to IO ports. This could be leveraged in a number of ways to ultimately run code with elevated privileges.
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-2018-19322
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-19322
CVE-2018-19322
https://nvd.nist.gov/vuln/detail/CVE-2018-19322
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Last modified: February 3, 2019