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2023-02-17
Tabatt, P., Jelonek, J., Schölzel, M., Lehniger, K., Langendörfer, P..  2022.  Code Mutation as a mean against ROP Attacks for Embedded Systems. 2022 11th Mediterranean Conference on Embedded Computing (MECO). :1–4.
This paper presents a program-code mutation technique that is applied in-field to embedded systems in order to create diversity in a population of systems that are identical at the time of their deployment. With this diversity, it becomes more difficult for attackers to carry out the very popular Return-Oriented-Programming (ROP) attack in a large scale, since the gadgets in different systems are located at different program addresses after code permutation. In order to prevent the system from a system crash after a failed ROP attack, we further propose the combination of the code mutation with a return address checking. We will report the overhead in time and memory along with a security analysis.