The article analyzes the Windows GetProcessHandleFromHwnd API and its evolution from a hook-based implementation to a kernel Win32k function that could open powerful process handles, enabling security bypasses such as CVE-2023-41772.
Bypassing Administrator Protection by Abusing UI Access
Windows “Administrator Protection” introduces a stronger admin model, but researchers found multiple privilege-escalation bypasses caused by legacy UAC behavior and UIAccess mechanisms. The issues allowed silent elevation in some cases and were later patched.