CVE-2025-62213 Windows Ancillary Function Driver 释放后重用权限提升漏洞

// CVE-2025-62213 PoC - Windows AFD Driver Use After Free // This PoC demonstrates the vulnerability concept (for educational purposes only) #include <windows.h> #include <stdio.h> // Simplified PoC structure for understanding the attack vector typedef struct _AFD_ADDRESS_CHANGE_HANDLE { PVOID Object; ULONG_PTR Unknwon; } AFD_ADDRESS_CHANGE_HANDLE, *PAFD_ADDRESS_CHANGE_HANDLE; // Trigger the use-after-free condition in AFD driver BOOL TriggerUAF() { HANDLE hDevice = CreateFileW( L"\\\\.\\AfdOpenPort", GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, FILE_FLAG_OVERLAPPED, NULL ); if (hDevice == INVALID_HANDLE_VALUE) { printf("[-] Failed to open AFD driver\\n"); return FALSE; } printf("[+] Opened AFD driver handle\\n"); // Step 1: Create socket and trigger object allocation // Step 2: Free the object through specific IOCTL // Step 3: Reallocate with controlled data // Step 4: Trigger use-after-free to gain code execution CloseHandle(hDevice); return TRUE; } int main() { printf("CVE-2025-62213 PoC - AFD Driver UAF\\n"); printf("Note: This is a simplified educational example\\n"); TriggerUAF(); return 0; } // Full exploitation requires: // 1. Kernel debugging knowledge // 2. Specific Windows version targeting // 3. Bypassing SMEP/KPOC mitigation // 4. Proper heap spray technique