External risk intelligence

Gigabyte Software Privilege Escalation Vulnerability.

CVE advisoryKnown Exploit

CVE-2018-19321

A vulnerability in Gigabyte software allows local attackers to elevate privileges by accessing arbitrary physical memory. This impacts affected systems and could risk data integrity and unauthorized system control. Organizations should address this vulnerability to mitigate potential security breaches.

1Halo Surface Signal

Gigabyte Aorus Graphics Engine

before 1.57before 19.0422.12.08before 1.26

External exposure likelihood

Halo Surface Signal score for CVE-2018-19321

The vulnerability exists in low-level drivers for local hardware management software. It requires local access to the system to exploit and lacks any network-reachable interface or public-facing component.

Horizon Alert

Summary of the vulnerability and why it matters

The GIGABYTE App Center, AORUS Graphics Engine, XTREME Gaming Engine, and OC GURU II software contain low-level drivers that allow unauthorized access to read and write arbitrary physical memory. This vulnerability could enable a local attacker to gain elevated privileges on affected systems. Such a breach could compromise system integrity and sensitive data.

  • Vulnerable GIGABYTE software drivers
  • Arbitrary memory read/write flaw
  • Local privilege escalation impact

Attack Path

How an attacker could exploit the issue

This vulnerability allows a local attacker to gain elevated privileges on affected systems. The attack leverages a flaw in GIGABYTE's low-level drivers to read and write arbitrary physical memory. Successful exploitation could lead to unauthorized access and control over the affected system.

  • Exposure condition: Local system access required.
  • Attacker starting point: Unprivileged local user.
  • Trigger and result: Read/write memory to elevate privileges.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability could allow a local attacker to gain elevated privileges on affected systems. The exploit requires direct access to the targeted computer. Organizations should consider the potential for unauthorized system control and data manipulation.

  • Likely attacker skill level: Low
  • Required access or conditions: Local access
  • Business risk or urgency: High

Priority actions

Operational Fix

Recommended remediation, mitigation, and detection steps

This vulnerability allows a local attacker to gain elevated privileges by exploiting flaws in low-level drivers within Gigabyte software. Exploitation could lead to unauthorized access and modification of system memory, posing a risk to data integrity and system control. Organizations should prioritize addressing this to mitigate potential security breaches.

  • Identify Gigabyte App Center, AORUS Graphics Engine, XTREME Gaming Engine, and OC GURU II installations.
  • Isolate affected systems or disable vulnerable software.
  • Apply vendor updates and confirm their effectiveness.

Frequently asked questions

What is Gigabyte App Center and its related products?

Gigabyte App Center, AORUS Graphics Engine, XTREME Gaming Engine, and OC GURU II are Gigabyte software suites. They manage and customize hardware like system performance, lighting, and fan speeds.

What is CVE-2018-19321 and its weakness class?

CVE-2018-19321 is a privilege escalation vulnerability. A local attacker can exploit this weakness to gain higher-level permissions on a system.

How can a local attacker exploit Gigabyte drivers for privilege escalation?

A local attacker can exploit flaws in Gigabyte's GPCIDrv and GDrv low-level drivers to read and write arbitrary physical memory, enabling privilege escalation.

What is the relevance of Gigabyte driver vulnerabilities for a user?

The vulnerability allows local attackers to gain elevated privileges, potentially leading to unauthorized system control and data manipulation, impacting system integrity.

What steps should be taken to address Gigabyte software vulnerabilities?

Identify vulnerable Gigabyte software, isolate affected systems, or disable the software. Apply vendor updates and confirm their effectiveness to mitigate risks.

References