TONTOU
New TONTOU CPU attack bypasses Spectre v2 fixes, leaks Linux password hashes
Successfully exploiting the issue requires overcoming several obstacles, including redirecting kernel control flow, precisely aligning interrupts with the post-neutralization window, and using the interrupt handler to poison the branch predictor entry associated with the target indirect branch. The researchers address these challenges through installing ‘timers’ to trigger hardware interrupts, frequent injection of interrupts, and via […]
1 min read