Researchers have developed a tool called InSpectre Gadget that can bypass Spectre protections and steal sensitive data from kernel memory and other areas of RAM. The tool was used to successfully perform a Native Branch History Injection (Native BHI) attack on Intel microprocessors.
We're told mitigations put in place at the software and silicon level by the x86 giant to thwart Spectre -style exploitation of its processors' speculative execution can be bypassed, allowing malware or rogue users on a vulnerable machine to steal sensitive information – such as passwords and keys – out of kernel memory and other areas of RAM that should be off limits.
InSpectre Gadget was used, as an example, to find a way to side-step FineIBT, a security feature built into Intel microprocessors intended to limitspeculative execution exploitation, and successfully pull off a Native Branch History Injection attack to steal data from protected kernel memory. AMD and Arm cores are not vulnerable to Native BHI, according to the VU Amsterdam team. AMD has since confirmed this in an
Spectre Data Theft Kernel Memory RAM Inspectre Gadget Native Branch History Injection Intel Microprocessors
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