Security features bypass in InsydeH2O Kernel - CVE-2023-30633
Published: October 11, 2023
Vulnerability identifier: #VU81907
CSH Severity: Low
CVSSv4.0: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-30633
CWE-ID: CWE-254
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
InsydeH2O Kernel
InsydeH2O Kernel
Software vendor:
Insyde Software
Insyde Software
Description
The vulnerability allows an attacker to bypass implemented security restrictions.
The vulnerability exists within the TrEEConfigDriver driver that can report false TPM PCR values. An attacker with physical access to device can write arbitrary values into Platform Configuration Register (PCR) banks and mask malicious activity on the device.
Remediation
Install updates from vendor's website.