Guide to Windows Kernel Use-After-Free Vulnerabilities
/ 1 min read
🧩 Exploring Windows Kernel Use-After-Free Vulnerabilities. The article provides a detailed guide on exploiting Use-After-Free (UaF) vulnerabilities in Windows 7 (x86) and Windows 10 (x64), emphasizing the importance of minimal mitigations for effective exploitation. It explains the concept of UaF, where an object is used after being freed, using a relatable analogy. The guide outlines specific functions related to memory allocation and deallocation, detailing how to manipulate these to achieve code execution. Key functions discussed include AllocateUaFObjectNonPagedPoolIoctlHandler
, which allocates memory, and FreeUaFObjectNonPagedPoolIoctlHandler
, which frees it without nullifying the pointer, creating a dangling reference. The article concludes with a successful proof of concept for exploiting these vulnerabilities, demonstrating the potential for hijacking execution flow.
