Critical severity · published Jul 9, 2018
CVE-2017-3197
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
9.8
CVSS
5.6%
EPSS
No
On KEV
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 vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)5.6% · higher than 93% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GF
Gb-bsi7h-6500 Firmware · Gigabyte
f6 · source: NVD
GF
Gb-bxi7-5775 Firmware · Gigabyte
f2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-3197
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-3197
Third Party Advisory
http://www.securityfocus.com/bid/97294
Exploit
https://github.com/CylanceVulnResearch/disclosures/blob/master/CLVA-2017-01-001.md
Exploit
https://github.com/CylanceVulnResearch/disclosures/blob/master/CLVA-2017-01-002.md
Exploit
https://www.cylance.com/en_us/blog/gigabyte-brix-systems-vulnerabilities.html
Third Party Advisory
https://www.kb.cert.org/vuls/id/507496
More from Gb-bsi7h-6500 Firmware
9.8
CVE-2017-3198
GIGABYTE BRIX UEFI firmware does not cryptographically validate images prior to updating the system firmware