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By dotCore
via mainisusuallyafunction.blogspot.com
Submitted: Nov 19 2012 / 16:44

Attacking hardened Linux systems with kernel JIT spraying
Intel's new Ivy Bridge CPUs support a security feature called Supervisor Mode Execution Protection (SMEP). It's supposed to thwart privilege escalation attacks, by preventing the kernel from executing a payload provided by userspace. In reality, there are many ways to bypass SMEP.
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