CVE-2017-3197CWE-693

GIGABYTE BRIX UEFI firmware fails to securely implement BIOS write protection

published July 9, 2018

CVSS
—
EPSS
6%
Percentile
92.8
In the wild
Unconfirmed
What it is

⚠️ An oversight in GIGABYTE's BRIX UEFI firmware lets unauthorized access slip right in — think of it like leaving the back door wide open in a secured building! 🔓 Imagine a hotel where anyone can walk into the staff-only areas simply by pushing on unlatched doors, completely bypassing security protocols. That’s what’s happening with this firmware vulnerability — it allows arbitrary modifications to essential system components. This could lead to malicious modifications of the SPI flash, possibly compromising the entire system's integrity. An attacker could gain complete control, making unauthorized changes that could even disrupt the firmware's normal operations, leaving your system vulnerable to further attacks.

Put simply

Imagine a hotel where anyone can walk into the staff-only areas simply by pushing on unlatched doors, completely bypassing security protocols. That’s what’s happening with this firmware vulnerability — it allows arbitrary modifications to essential system components. The GIGABYTE BRIX UEFI firmware for specific models does not securely enforce restrictions on BIOSWE, BLE, SMM_BWP, and PRx features, allowing arbitrary write access to the BIOS. This lack of protection makes it possible for attackers to modify critical firmware components without authorization.

What to do

This could lead to malicious modifications of the SPI flash, possibly compromising the entire system's integrity. An attacker could gain complete control, making unauthorized changes that could even disrupt the firmware's normal operations, leaving your system vulnerable to further attacks. To remediate this, ensure your systems are running the latest firmware versions for the affected models: upgrade the GB-BSi7H-6500 to version F7 and the GB-BXi7-5775 to F3. Regularly monitor firmware updates from GIGABYTE to stay protected. You've got this! By keeping your firmware up-to-date, you're taking important steps to fortify your defenses. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.05569 · 92.8th percentile
Weakness
CWE-693 · Protection Mechanism Failure
Published
2018-07-09T19:00Z
EPSS history
Timeline
  • 09 JUL 19:00Z
    GIGABYTE BRIX UEFI firmware fails to securely implement BIOS write protection
    cvelistv5