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).
Metrics
Affected Vendors & Products
References
History
No history.
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
Vulnrichment
Updated: 2024-08-02T14:28:51.915Z
NVD
Status : Modified
Published: 2023-10-19T20:15:08.990
Modified: 2024-11-21T08:00:33.987
Link: CVE-2023-30633
Redhat
No data.