CVE-2017-3198 : Security Advisory and Response
Discover the impact of CVE-2017-3198 on GIGABYTE BRIX UEFI firmware. Learn about the vulnerability allowing unauthorized changes to firmware images and how to mitigate the risk.
The UEFI firmware of GIGABYTE BRIX has a vulnerability that allows unauthorized changes to firmware images without detection.
Understanding CVE-2017-3198
What is CVE-2017-3198?
The UEFI firmware of GIGABYTE BRIX lacks cryptographic validation on images before updating the system firmware, enabling attackers to make unauthorized changes.
The Impact of CVE-2017-3198
This vulnerability allows attackers to modify firmware images without being detected, potentially leading to unauthorized access and control of affected systems.
Technical Details of CVE-2017-3198
Vulnerability Description
The UEFI firmware of GIGABYTE BRIX does not perform cryptographic validation on images before updating the system firmware. Firmware updates are transmitted over HTTP, making it susceptible to unauthorized modifications.
Affected Systems and Versions
- Product: GB-BSi7H-6500
- Vendor: GIGABYTE
- Affected Version: F6
- Product: GB-BXi7-5775
- Vendor: GIGABYTE
- Affected Version: F2
Exploitation Mechanism
Attackers can exploit this vulnerability by intercepting firmware updates transmitted over HTTP and injecting unauthorized changes to the firmware images.
Mitigation and Prevention
Immediate Steps to Take
- Implement secure boot mechanisms to ensure firmware integrity.
- Regularly monitor for unauthorized firmware modifications.
- Use encrypted channels for transmitting firmware updates.
Long-Term Security Practices
- Conduct regular security assessments and firmware audits.
- Keep firmware updated with the latest patches and security enhancements.
Patching and Updates
Apply patches provided by GIGABYTE to address this vulnerability and ensure the UEFI firmware is cryptographically signed.