Insyde Security Advisory 2023045

Insyde ID Advisory Category Impact of Vulnerability Severity Rating Original Date Last Revised
INSYDE-SA-2023045 Software CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N 6.1 10/10/2023 10/10/2023

Summary:

TrEEConfigDriver: Vulnerable devices can report false TPM PCR values masking malware activity.

Vulnerability Details:

CVE-2023-30633

Devices use Platform Configuration Registers (PCRs) to record information about device and software configuration to ensure that the boot process is secure. 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 technique requires physical access to a target victim’s device, or an attacker would already have had to compromise a legitimate user's credentials.

Solution Information:
kernel 5.2: Trunk
kernel 5.3: Version 05.37.17
kernel 5.4: Version 05.45.17
kernel 5.5: Version 05.53.17
kernel 5.6: Version 05.60.17

Revision History:

Revision Date Description
1.0 10/10/2023 Initial Release
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