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Blackkhat


Ghosts in the Machine Check: Conjuring Hardware Failures for Privilege Escalation
We’ve all seen it. The sudden freeze. The blue screen of death. The catastrophic system halt. Usually, when a processor encounters a truly unrecoverable hardware error—a bit flip in the L2 cache, a voltage sag, or a literal "CPU on fire" scenario—it triggers whats called a Machine Check Exception (MCE) . The hardware realizes the world no longer makes sense, throws its hands up, and shuts everything down before data corruption can spread. It’s the ultimate fail-safe. But as s
Feb 133 min read


Unlocked: The "God Mode" Hardware Backdoor in x86 CPUs – A Deep Dive into Project Rosenbridge
This groundbreaking research exposes a sophisticated hardware backdoor in certain VIA C3 family processors. This backdoor, enabling a devastating ring 3 (userland) to ring 0 (kernel) privilege escalation, represents a fundamental bypass of decades of established hardware and software security paradigms.
Jul 11, 20254 min read


Shedding Light on the x86 Black Box: Uncovering Secrets and Bugs with Sandsifter
For too long, we've treated our computer processors as infallible "black boxes," blindly trusting them to execute our code without...
Jul 11, 20254 min read


The Memory Sinkhole: Unearthing a 20-Year-Old x86 Design Flaw for Universal Privilege Escalation
A significant architectural vulnerability, dubbed "The Memory Sinkhole," has been uncovered in the x86 architecture, a flaw that has...
Jul 11, 20253 min read
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