14 citations · 21 across the 6 of their papers we have counts for
6 papers
uGen: An Agentic Framework for Generating Microarchitectural Attack PoCs
Debopriya Roy Dipta, Thore Tiemann, Eduard Marin +2
Microarchitectural attacks continue to evolve, uncovering new exploitation vectors in modern processors. From a defensive perspective, assessing a system's susceptibility to such a…
Dynamic Frequency-Based Fingerprinting Attacks against Modern Sandbox Environments
Debopriya Roy Dipta, Thore Tiemann, Berk Gulmezoglu +2
The cloud computing landscape has evolved significantly in recent years, embracing various sandboxes to meet the diverse demands of modern cloud applications. These sandboxes encom…
Okapi: Efficiently Safeguarding Speculative Data Accesses in Sandboxed Environments
Philipp Schmitz, Tobias Jauch, Alex Wezel +6
This paper introduces Okapi, a new hardware/software cross-layer architecture designed to mitigate Transient Execution Side Channel attacks, including Spectre variants, in modern c…
Microarchitectural Security of AWS Firecracker VMM for Serverless Cloud Platforms
Zane Weissman, Thore Tiemann, Thomas Eisenbarth +1
Firecracker is a virtual machine manager (VMM) built by Amazon Web Services (AWS) for serverless cloud platforms, services that run code for end users on a per-task basis, automati…
IOTLB-SC: An Accelerator-Independent Leakage Source in Modern Cloud Systems
Thore Tiemann, Zane Weissman, Thomas Eisenbarth +1
Hardware peripherals such as GPUs and FPGAs are commonly available in server-grade computing to accelerate specific compute tasks, from database queries to machine learning. CSPs h…
JackHammer: Efficient Rowhammer on Heterogeneous FPGA-CPU Platforms
Zane Weissman, Thore Tiemann, Daniel Moghimi +3
After years of development, FPGAs are finally making an appearance on multi-tenant cloud servers. These heterogeneous FPGA-CPU architectures break common assumptions about isolatio…