A novel hardware attack dubbed PACMAN has been demonstrated against Apple's M1 processor chipsets, potentially arming a malicious actor with the capability to gain arbitrary code execution on macOS systems.
It leverages "speculative execution attacks to bypass an important memory protection mechanism, ARM Pointer Authentication, a security feature that is used to enforce pointer integrity," MIT researchers Joseph Ravichandran, Weon Taek Na, Jay Lang, and Mengjia Yan said in a new paper.
What's more concerning is that "while the hardware mechanisms used by PACMAN cannot be patched with software features, memory corruption bugs can be," the researchers added.
From The Hacker News
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