论文标题
在多项实时系统中，对共享缓存的内存拒绝服务攻击
Memory-Aware Denial-of-Service Attacks on Shared Cache in Multicore Real-Time Systems
论文作者
论文摘要
在本文中，我们确定记忆性能在对共享缓存的拒绝服务攻击的可行性和有效性中起着至关重要的作用。基于此洞察力，我们引入了新的缓存DOS攻击，该攻击可以从用户空间安装，并可能通过利用平台的内存映射信息和大量支持，从而对跨核心受害者产生极端最差的执行时间（WCET）对跨核受害者的影响（WCET）的影响。我们使用合成和现实世界的基准分配了两个流行的嵌入式嵌入式多核心平台上的增强攻击。拟议的DOS攻击在经过测试的平台上达到了高达111倍WCET。
In this paper, we identify that memory performance plays a crucial role in the feasibility and effectiveness for performing denial-of-service attacks on shared cache. Based on this insight, we introduce new cache DoS attacks, which can be mounted from the user-space and can cause extreme worst-case execution time (WCET) impacts to cross-core victims -- even if the shared cache is partitioned -- by taking advantage of the platform's memory address mapping information and HugePage support. We deploy these enhanced attacks on two popular embedded out-of-order multicore platforms using both synthetic and real-world benchmarks. The proposed DoS attacks achieve up to 111X WCET increases on the tested platforms.
