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fTPM Voltage Fault Injection

Bulletin ID:  AMD-SB-4005
Potential Impact: Arbitrary Code Execution
Severity: High

Summary

CVE-2023-20589

Researchers at the Technische Universität Berlin have reported the use of voltage fault injection attacks on ASP secure boot targeting fTPM.  An attacker with specialized hardware and physical access to an impacted device may be able to perform a voltage fault injection attack resulting in compromise of the ASP secure boot.

CVE Details

Refer to Glossary for explanation of terms

CVE

Severity

CVE Description

CVE-2023-20589 

High

An attacker with specialized hardware and physical access to an impacted device may be able to perform a voltage fault injection attack resulting in compromise of the ASP secure boot potentially leading to arbitrary code execution.

Affected Products 

AMD Ryzen ™ “Zen 1”, “Zen 2”, and “Zen3” microarchitecture-based platforms.

Desktop

  • AMD Ryzen™ 3000 Series Desktop Processors
  • AMD Ryzen™ PRO 3000 Series Desktop Processors
  • AMD Ryzen™ 3000 Series Desktop Processors with Radeon™ Graphics
  • AMD Ryzen™ PRO 3000 Series Processors with Radeon™ Vega Graphics
  • AMD Athlon™ 3000 Series Processors with Radeon™ Graphics
  • AMD Athlon™ PRO 3000 Series Processors with Radeon™ Vega Graphics
  • AMD Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics
  • AMD Ryzen™ PRO 4000 Series Desktop Processors
  • AMD Ryzen™ 5000 Series Desktop Processors
  • AMD Ryzen™ 5000 Series Desktop Processors with Radeon™ Graphics
  • AMD Ryzen™ PRO 5000 Series Desktop Processors

High-End Desktop (HEDT)

  • AMD Ryzen™ Threadripper™ 2000 Series Processors
  • AMD Ryzen™ Threadripper™ 5000 Series Processors
  • AMD Ryzen™ Threadripper™ 3000 Series Processors

Mobile

  • AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics
  • AMD Ryzen™ 5000 Series Processors with Radeon™ Graphics
  • AMD Ryzen™ PRO 5000 Series Processors
  • AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics
  • AMD Ryzen™ PRO 6000 Series Processors
  • AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics
  • AMD Ryzen™ 7030 Series Processors with Radeon™ Graphics
  • AMD Ryzen™ PRO 7030 Series Processors
  • AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics

Mitigation

AMD believes the methods described in the report can only be applied on individual units and with prolonged physical access. Physical attacks are not part of the threat protection model for the affected AMD products. AMD believes a platform-level mitigation is possible for systems that support an Embedded Security Controller (ESC)/Platform Root-of-trust (PRoT). AMD recommends OEMs investigate the feasibility of this mitigation on affected systems.

Acknowledgement 

AMD thanks Hans Niklas Jacob, Christian Werling, and Robert Buhren from Technische Universität Berlin – SecT and Jean-Pierre Seifert from Fraunhofer SIT for reporting this issue.

 

Revisions

Revision Date Description
08-08-2023 Initial publication

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