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Electromagnetic Fault Injection as a New Forensic Approach for SoCs

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Abstract

Smartphones have a complex hardware and software architecture. Having access to their full memory space can help solve judicial investigations. We propose a new privilege escalation technique in order to access hidden contents and execute sensitive operations. While classical forensic tools mostly exploit software vulnerabilities, it is based on a hardware security evaluation technique. Electromagnetic fault injection is such a technique usually used for microcontrollers or FPGA security characterization. A security function running at 1.2 GHz on a 64-bit SoC with a Linux-based OS was successfully attacked. The Linux authentication module uses this function to verify the password correctness by comparing two hash values. Hence, this work constitutes a step towards smartphones privilege escalation through electromagnetic fault injection. This approach is interesting for addressing forensic issues on smartphones.
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Dates and versions

cea-03155307 , version 1 (01-03-2021)

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Clément Gaine, Driss Aboulkassimi, Simon Pontie, Jean-Pierre Nikolovski, Jean-Max Dutertre. Electromagnetic Fault Injection as a New Forensic Approach for SoCs. 2020 IEEE International Workshop on Information Forensics and Security (WIFS), Dec 2020, New York, United States. pp.1-6, ⟨10.1109/WIFS49906.2020.9360902⟩. ⟨cea-03155307⟩
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