Attacking TrustZone on devices lacking memory protection
Ron Stajnrod, Raz Ben Yehuda, Nezer Jacob Zaidenberg · Journal of Computer Virology and Hacking Techniques · 2021
Abstract ARM TrustZone offers a Trusted Execution Environment (TEE) embedded into the processor cores. Some vendors offer ARM modules that do not fully comply with TrustZone specifications, which may lead to vulnerabilities in the system. In this paper, we present a DMA attack tutorial from the insecure world onto the secure world, and the design and implementation of this attack in a real insecure hardware.