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Security Vulnerability in Browser Interface Allows Computer Access via GPU

Researchers at TU Graz were successful with three different side-channel attacks on graphics cards via the WebGPU browser interface. The attacks were fast enough to succeed during normal surfing behaviour.

“Our attacks do not require users to interact with a website and they run in a time frame that allows them to be carried out during normal internet surfing. With our work, we want to clearly point out to browser manufacturers that they need to deal with access to the GPU in the same way as with other resources that affect security and privacy,” says Lukas Giner from the Institute of Applied Information Processing and Communications at TU Graz. “Our AES attack would probably be somewhat more complicated under real-time conditions because many encryptions run in parallel on a GPU,” says Roland Czerny from the Institute of Applied Information Processing and Communications at TU Graz.

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