CVE-2017-3197 — GIGABYTE BRIX UEFI firmware for the GB-BSi7H-6500 (version F6) and GB-BXi7-5775

GIGABYTE BRIX UEFI firmware for the GB-BSi7H-6500 (version F6) and GB-BXi7-5775 (version F2) platforms does not securely implement BIOSWE, BLE, SMM_BWP, and PRx features. As a result, the BIOS is not protected from arbitrary write access and may permit modifications to the SPI fl

01What is this vulnerability?

GIGABYTE BRIX UEFI firmware for the GB-BSi7H-6500 (version F6) and GB-BXi7-5775 (version F2) platforms does not securely implement BIOSWE, BLE, SMM_BWP, and PRx features. As a result, the BIOS is not protected from arbitrary write access and may permit modifications to the SPI flash.

02Affected products

Vendor	Product	Versions
GIGABYTE	GB	BSi7H-6500 — F6
GIGABYTE	GB	BXi7-5775 — F2

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2018-07-09T19:00:00.000Z
• Last modified: 2024-08-05T14:16:28.250Z

09References

• github.com — https://github.com/CylanceVulnResearch/disclosures/blob/master/CLVA-2017-01-001.…
• github.com — https://github.com/CylanceVulnResearch/disclosures/blob/master/CLVA-2017-01-002.…
• www.kb.cert.org — https://www.kb.cert.org/vuls/id/507496
• www.securityfocus.com — http://www.securityfocus.com/bid/97294
• www.cylance.com — https://www.cylance.com/en_us/blog/gigabyte-brix-systems-vulnerabilities.html