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).
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2023-10-19T00:00:00

Updated: 2024-09-12T20:21:56.569Z

Reserved: 2023-04-13T00:00:00

Link: CVE-2023-30633

cve-icon Vulnrichment

Updated: 2024-08-02T14:28:51.915Z

cve-icon NVD

Status : Modified

Published: 2023-10-19T20:15:08.990

Modified: 2024-11-21T08:00:33.987

Link: CVE-2023-30633

cve-icon Redhat

No data.