Controlando a Frequência de Desvios Indiretos para Bloquear Ataques ROP

Mateus Tymburibá FerreiraAilton Santos FilhoEduardo Feitosa

Because of its wide use in attacks against modern computing systems, protections against malicious codes based on the technique called Return-Oriented Programming (ROP) have been extensively studied. Nevertheless, it is not yet known a definitive solution. This article demonstrates that by controlling the frequency of indirect branch instructions it is possible to avoid the consolidation of ROP attacks. For this, we developed a prototype for Linux, Windows, OSX and Android environments. Experiments conducted with exploits confirmed the effectiveness of the proposed model at a comparable and, in some cases, lower computational cost than that achieved by related protections.

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