Hacker News·4 min read·hard
Exploiting System Management Mode with a very long interrupt
W
WhiteDawn
✦AI Summary
Researchers have identified a security vulnerability in the x86 System Management Mode (SMM) that can be exploited using an extremely long-running machine instruction. By forcing a core to remain busy, an attacker can desynchronize the SMM state across CPU cores to execute unauthorized code.
Exploiting System Management Mode with a very very very very very very very long interrupt.
technologyscience
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