CVE-2018-19321 is a high-severity vulnerability that allows local attackers to gain elevated privileges through the GPCIDrv and GDrv low-level drivers in GIGABYTE APP Center, AORUS GRAPHICS ENGINE, XTREME GAMING ENGINE, and OC GURU II. The vulnerability was published on December 21, 2018, and has a CVSS score of 7.8, indicating a significant risk to affected systems.
Risk to organizations includes potential unauthorized access to sensitive information and system controls. Attackers may leverage this vulnerability to manipulate physical memory, leading to severe security breaches. Organizations should prioritize patching immediately.
The urgency for defenders is high, as this vulnerability has been included in the Known Exploited Vulnerabilities (KEV) catalog since October 24, 2022. Immediate action is required to mitigate the risk associated with this vulnerability.
Organizations are encouraged to monitor for any signs of exploitation and apply vendor patches as soon as they become available.
Vulnerability Details
The vulnerability allows local attackers to read and write arbitrary physical memory through the affected drivers. This can lead to a privilege escalation scenario where an attacker can gain unauthorized control over the system. The affected versions include 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.
The CVSS score of 7.8 reflects the high severity of this issue, with impacts on confidentiality, integrity, and availability being rated as high as well. The publication date of this vulnerability is December 21, 2018.
Technical Analysis
The root cause of this vulnerability stems from improper access controls in the GPCIDrv and GDrv drivers, which allow any local user with low privileges to read and write arbitrary physical memory. The attack vector is local, requiring physical or remote access to the affected system.
The attack complexity is low, as no special conditions or user interactions are required for exploitation. The exploitability of this vulnerability is critical due to the low privileges required and the absence of user interaction.
The impact on confidentiality, integrity, and availability is also rated high, as successful exploitation can lead to complete control over the affected systems.
Risk & Impact Analysis
The real-world deployment risk associated with this vulnerability is significant. Any organization using the affected GIGABYTE products is potentially at risk of local privilege escalation, which can lead to unauthorized access to sensitive systems and data.
With the vulnerability being actively exploited, organizations should assess the blast radius and urgency based on the CVSS score and KEV data. Organizations should address this vulnerability in their priority patch cycle.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | Yes |
Public PoC | Yes |
Actively Exploited | Yes |
Ransomware Use | Yes |
Affected Versions
The affected versions of the GIGABYTE products include GIGABYTE APP Center v1.05.21 and earlier, AORUS GRAPHICS ENGINE before 1.57, OC GURU II v2.08, and XTREME GAMING ENGINE before 1.26. Organizations should ensure they are using patched versions to mitigate this risk.
Mitigation & Remediation
Organizations should immediately apply updates as provided by GIGABYTE. For more details on the specific updates, refer to the vendor advisory available at GIGABYTE's security page. If patches are not available, consider implementing configuration hardening and network controls to limit access to vulnerable components.
Detection Guidance
Monitoring for signs of exploitation is crucial. Organizations should look for log indicators of unauthorized memory access and behavioral anomalies consistent with privilege escalation attempts. Network signatures related to the affected drivers should also be monitored.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2018-19321 lies in its potential for privilege escalation which can lead to broader compromises within organizational networks. This vulnerability highlights the importance of adhering to secure coding practices and rigorous driver validation.
Security teams should take this as an opportunity to review their processes for vulnerability management and prioritize the patching of high-severity vulnerabilities. Regular assessments and updates can help mitigate the risks associated with such vulnerabilities.
For more insights on maintaining security, organizations should consider implementing a penetration testing program to identify and address similar weaknesses proactively.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
.webp)