Quantum Secular Labs / Blog / Advisories

CVE-2018-19323: GIGABYTE Multiple Products Privilege Escalation Vulnerability

CVE-2018-19323 is rated critical with a CVSS v3.1 base score of 9.8 and affects GIGABYTE Multiple Products. Per its scoring, it can be exploited over the network, without authentication, without any user interaction. The scored impact on confidentiality, integrity and availability is the highest available. CISA added it to its Known Exploited Vulnerabilities catalog on 2022-10-24, which means exploitation in the wild has been observed.

Vulnerability description

The GDrv low-level driver in GIGABYTE APP Center v1.05.21 and earlier, AORUS GRAPHICS ENGINE before 1.57, XTREME GAMING ENGINE before 1.26, and OC GURU II v2.08 exposes functionality to read and write Machine Specific Registers (MSRs).

Severity breakdown

CVSS v3.1 9.8: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

  • Attack vector: Network. Exploitable remotely over the network, with no need for local or physical access.
  • Attack complexity: Low. No special conditions; the attack can be repeated reliably.
  • Privileges required: None. No account or prior access is needed.
  • User interaction: None. No action from any user is needed.
  • Scope: Unchanged. Impact stays within the vulnerable component.
  • Confidentiality impact: High. Total loss of confidentiality; sensitive data can be fully disclosed.
  • Integrity impact: High. Total loss of integrity; data or system state can be fully modified.
  • Availability impact: High. Total loss of availability; the component can be shut down.

Affected products

  • Gigabyte Aorus Graphics Engine: before 1.57
  • Gigabyte App Center: up to and including 1.05.21
  • Gigabyte Oc Guru Ii: 2.08
  • Gigabyte Xtreme Gaming Engine: before 1.26

References