Never Let Your Guard Down: Finding Unguarded Gates to Bypass Control Flow Guard with Big Data

Дата: 08.01.2020. Автор: CISO CLUB. Категории: Подкасты и видео по информационной безопасности

Control Flow Guard (CFG) is a security mechanism to prevent indirect branches (indirect call/jmp) to redirect control flow to unexpected locations. It was originally released by Microsoft with Windows 8.1 and currently implemented in Window 10 as an enhanced security feature. CFG works by inserting a control-flow check-function before each critical indirect branch at compiling time, while the check-function will validate the target address using CFG bitmap at runtime.

by Ke Sun and Ya Ou

Full Abstract & Presentation Materials:
https://www.blackhat.com/asia-17/briefings.html#never-let-your-guard-down-finding-unguarded-gates-to-bypass-control-flow-guard-with-big-data

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