Sandsifter - The X86 Processor Fuzzer

The sandsifter audits x86 processors for hidden instructions and hardware bugs, by systematically generating machine code to search through a processor's instruction set, and monitoring execution for anomalies. Sandsifter has uncovered secret processor instructions from every major vendor;...

Rosenbridge - Hardware Backdoors In Some X86 CPUs

project:rosenbridge reveals a hardware backdoor in some desktop, laptop, and embedded x86 processors. The backdoor allows ring 3 userland code to circumvent processor protections to freely read and write ring 0 kernel data. While the backdoor is typically disabled requiring ring 0 execution to...