One Exploit to Rule Them All? On the Security of Drop-in Replacement and Counterfeit...
summary
The paper analyzes six STM32F1-style microcontrollers from four manufacturers (including the genuine ST device) to see if drop-in replacements or counterfeits are silicon clones and how their security compares. Through low-level analysis and focus on debug/hardware protections, the authors find each device is a distinct design and discover multiple novel vulnerabilities—many enabling full firmware extraction—that can be exploited with DIY-level invasive and non-invasive techniques. The work includes detailed vulnerability descriptions and proof-of-concept code to enable reproduction and further testing.
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chapters (6)
- 0:00Introduction
- 2:02Counterfeit chip testing
- 5:21Flash memory access
- 9:46Security bypass techniques
- 13:26Impact and industry response
- 17:50Conclusion
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