Critical severity · published Jul 9, 2018
CVE-2017-3198
GIGABYTE BRIX UEFI firmware does not cryptographically validate images prior to updating the system firmware
9.8
CVSS
1.6%
EPSS
No
On KEV
Description
GIGABYTE BRIX UEFI firmware does not cryptographically validate images prior to updating the system firmware. Additionally, the firmware updates are served over HTTP. An attacker can make arbitrary modifications to firmware images without being detected.
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)1.6% · higher than 75% 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-2017-3198
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-3198
Third Party Advisory
http://www.securityfocus.com/bid/97294
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-2017-3197
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