VulnerabilityModified
CVE-2017-3197
As a result, the BIOS is not protected from arbitrary write access and may permit modifications to the SPI flash.
CRITICAL 9.8EPSS 5.64%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (5.64%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 5.64% probability · 93th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-693, CWE-20
- Affected
- gigabyte/gb-bsi7h-6500 firmware · gigabyte/gb-bxi7-5775 firmware
- Source
- cret@cert.org
References
- http://www.securityfocus.com/bid/97294Third Party Advisory, VDB Entry
- https://github.com/CylanceVulnResearch/disclosures/blob/master/CLVA-2017-01-001.mdExploit, Third Party Advisory
- https://github.com/CylanceVulnResearch/disclosures/blob/master/CLVA-2017-01-002.mdExploit, Third Party Advisory
- https://www.cylance.com/en_us/blog/gigabyte-brix-systems-vulnerabilities.htmlExploit, Third Party Advisory
- https://www.kb.cert.org/vuls/id/507496Third Party Advisory, US Government Resource
- http://www.securityfocus.com/bid/97294Third Party Advisory, VDB Entry
- https://github.com/CylanceVulnResearch/disclosures/blob/master/CLVA-2017-01-001.mdExploit, Third Party Advisory
- https://github.com/CylanceVulnResearch/disclosures/blob/master/CLVA-2017-01-002.mdExploit, Third Party Advisory
- https://www.cylance.com/en_us/blog/gigabyte-brix-systems-vulnerabilities.htmlExploit, Third Party Advisory
- https://www.kb.cert.org/vuls/id/507496Third Party Advisory, US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.