PCIe Side-channel Attack on I/O Device via RDMA-enabled Network Card
Ho-Dong Kim, Junbeom Hur · 2022 13th International Conference on Information and Communication Technology Convergence (ICTC) · 2022
Microarchitectural side-channel attacks aim to steal sensitive information by exploiting various shared resources of systems. Recently, several studies proposed PCIe-based microar-chitectural side-channel attacks. Existing studies evaluated such attacks on the limited environments that utilize special-purpose system hardwares. In this study, we analyze the operating mechanism of IOMMU which manages direct memory access of PCIe devices in general system environments. Based on the result, we discuss the possibility of exploiting IOMMU to conduct a PCIe-based microarchitectural side-channel attack.