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Category:   Device (Encryption/VPN)  >   Pulse Connect Secure (formerly Juniper Pulse Secure) Vendors:   Juniper
Juniper Secure Access (IVE) Input Validation Flaw in 'welcome.cgi' Permits Cross-Site Scripting Attacks
SecurityTracker Alert ID:  1024210
SecurityTracker URL:  http://securitytracker.com/id/1024210
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Date:  Jul 15 2010
Impact:   Disclosure of authentication information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information
Exploit Included:  Yes  
Version(s): Model SA-2000, 6.5R1 (Build 14599)
Description:   A vulnerability was reported in Juniper Secure Access (IVE). A remote user can conduct cross-site scripting attacks.

The IVE web interface does not properly filter HTML code from user-supplied input before displaying the input. A remote user can create a specially crafted URL that, when loaded by a target user, will cause arbitrary scripting code to be executed by the target user's browser. The code will originate from the IVE device and will run in the security context of that site. As a result, the code will be able to access the target user's cookies (including authentication cookies), if any, associated with the site, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.

A demonstration exploit URL is provided:

http://[target]/dana-na/auth/url_default/welcome.cgi?p=logout&c=37&u=</script><script>alert(1)</script>

Richard Brain of ProCheckUp Ltd reported this vulnerability.

Impact:   A remote user can access the target user's cookies (including authentication cookies), if any, associated with the IVE device, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.
Solution:   No solution was available at the time of this entry.
Vendor URL:  www.juniper.net/ (Links to External Site)
Cause:   Input validation error

Message History:   None.


 Source Message Contents

Subject:  [Full-disclosure] PR09-16: Juniper Secure Access series (Juniper IVE) Cross-Site Scripting Vulnerability

PR09-16: Juniper Secure Access series (Juniper IVE) XSS

Vulnerability found: 12th October 2009

Severity: Medium (Script injection)

Description:

There is a Cross-site Scripting vulnerability on Juniper, IVE web interface.

Procheckup has found by making a malformed request to the IVE Web
interface without authentication, that a vanilla cross site scripting
(XSS) attack is possible.


Successfully tested on:
Juniper Networks IVE version 6.5R1 (Build 14599)

Model SA-2000


Proof of concept:

http://target-domain.foo/dana-na/auth/url_default/welcome.cgi?p=logout&c=37&u=</script><script>alert(1)</script>


Consequences:

An attacker may be able to cause execution of malicious scripting code
in the browser of a user who clicks on a link or visits a malicious
webpage. The malicious code would run in the security context of the
vulnerable website.

This type of attack can result in non-persistent defacement of the
target site, or the redirection of confidential information (i.e.:
passwords or session IDs) to unauthorised third parties.


Fix:

Ensure that the firewall's management interface is disabled on the
Internet connected interface, by disabling WeBUI within service
options on the Internet connected interface.



Credits: Richard Brain of ProCheckUp Ltd (www.procheckup.com)


Legal:

Copyright 2009 Procheckup Ltd. All rights reserved.

Permission is granted for copying and circulating this Bulletin to the
Internet community for the purpose of alerting them to
problems, if and only if, the Bulletin is not edited or changed in any
way, is attributed to Procheckup, and provided such
reproduction and/or distribution is performed for non-commercial purposes.

Any other use of this information is prohibited. Procheckup is not
liable for any misuse of this information by any third party.

_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/
 
 


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