Hardware backdoors in x86 CPUs - Allows ring 3 code to read and write ring 0 data
In Summary : The backdoor allows ring 3 (userland) code to circumvent processor protections to freely read and write ring 0 (kernel) data....
https://updatesinfosec.blogspot.com/2018/08/hardware-backdoors-in-x86-cpus-allows.html
In Summary :
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 enable it), we have found that it is
enabled by default on some systems.
This repository contains utilities to check if your processor is affected, close the backdoor if it is present, and the research and tools used to discover and analyze the backdoor. [...]
kindly refer the following link as follow up :
https://ift.tt/2OqE5zQ
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 enable it), we have found that it is
enabled by default on some systems.This repository contains utilities to check if your processor is affected, close the backdoor if it is present, and the research and tools used to discover and analyze the backdoor. [...]
kindly refer the following link as follow up :
https://ift.tt/2OqE5zQ
