CVE-2023-30633

Description

An issue was discovered in TrEEConfigDriver in Insyde InsydeH2O with kernel 5.0 through 5.5. It can report false TPM PCR values, and thus mask malware activity. Devices use Platform Configuration Registers (PCRs) to record information about device and software configuration to ensure that the boot process is secure. (For example, Windows uses these PCR measurements to determine device health.) A vulnerable device can masquerade as a healthy device by extending arbitrary values into Platform Configuration Register (PCR) banks. This requires physical access to a target victim's device, or compromise of user credentials for a device. This issue is similar to CVE-2021-42299 (on Surface Pro devices).

5.3

CVSS

Severity: Medium

CVSS 3.1 •

EPSS 0.14%

Vendor Advisory insyde.com Vendor Advisory insyde.com

Affected: n/a n/a

References

Link	Tags
https://www.insyde.com/security-pledge	vendor advisory
https://www.insyde.com/security-pledge/SA-2023045	vendor advisory

Frequently Asked Questions

What is the severity of CVE-2023-30633?: CVE-2023-30633 has been scored as a medium severity vulnerability.
How to fix CVE-2023-30633?: To fix CVE-2023-30633, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-30633 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2023-30633 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.