Execution at RISC: Stealth JOP Attacks on RISC-V Applications

• URL: http://arxiv.org/abs/2307.12648v1
• Date: Mon, 24 Jul 2023 09:39:21 GMT
• Title: Execution at RISC: Stealth JOP Attacks on RISC-V Applications
• Authors: Lo\"ic Buckwell and Olivier Gilles and Daniel Gracia P\'erez and Nikolai Kosmatov
• Abstract summary: This paper demonstrates that RISC-V is sensible to Jump-Oriented Programming, a class of complex code-reuse attacks. A proof-of-concept attack is implemented on an embedded web server compiled for RISC-V.
• Score: 0.5543867614999909
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: RISC-V is a recently developed open instruction set architecture gaining a lot of attention. To achieve a lasting security on these systems and design efficient countermeasures, a better understanding of vulnerabilities to novel and potential future attacks is mandatory. This paper demonstrates that RISC-V is sensible to Jump-Oriented Programming, a class of complex code-reuse attacks. We provide an analysis of new dispatcher gadgets we discovered, and show how they can be used together in order to build a stealth attack, bypassing existing protections. A proof-of-concept attack is implemented on an embedded web server compiled for RISC-V, in which we introduced a vulnerability, allowing an attacker to remotely read an arbitrary file from the host machine.

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