自适应即时代码多样化

Abhinav Jangda, Mohit Mishra, B. D. Sutter
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引用次数: 12

摘要

提出了一种在Java字节码JIT编译器中动态再生多样化代码的方法,并在程序执行过程中频繁更新多样化代码。通过这种方式,我们可以显著减少攻击者让程序泄漏有用地址空间信息并随后在内存攻击中使用泄漏信息的时间范围。评估了概念实现的证明,表明即使代码频繁重新编译,我们也可以实现比以前的技术状态更小的开销,在整个程序执行过程中只产生一次多样性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Adaptive Just-In-Time Code Diversification
We present a method to regenerate diversified code dynamically in a Java bytecode JIT compiler, and to update the diversification frequently during the execution of the program. This way, we can significantly reduce the time frame in which attackers can let a program leak useful address space information and subsequently use the leaked information in memory exploits. A proof of concept implementation is evaluated, showing that even though code is recompiled frequently, we can achieved smaller overheads than the previous state of the art, which generated diversity only once during the whole execution of a program.
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