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ESB-2014.0653 - [Win][Appliance][Virtual] Citrix NetScaler Gateway: Cross-site scripting - Remote with user interaction

Date: 02 May 2014

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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2014.0653
 Cross-Site Scripting Vulnerability in Citrix NetScaler Gateway, formerly
                 Citrix Access Gateway Enterprise Edition
                                2 May 2014

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Citrix Access Gateway
                   Citrix NetScaler
                   Citrix NetScaler Gateway
Publisher:         Citrix
Operating System:  Network Appliance
                   Citrix XenServer
                   VMware ESX Server
                   Windows Server 2008 with Hyper-V
Impact/Access:     Cross-site Scripting -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2014-1899  

Original Bulletin: 
   http://support.citrix.com/article/CTX140291

- --------------------------BEGIN INCLUDED TEXT--------------------

Cross-Site Scripting Vulnerability in Citrix NetScaler Gateway, formerly 
Citrix Access Gateway Enterprise Edition

CTX140291

    Created On  Apr 30, 2014
    Updated On  Apr 30, 2014

Security Bulletin

See Applicable Products

Severity: Medium

Description of Problem

A Cross-Site Scripting (XSS) vulnerability has been identified in Citrix 
NetScaler Gateway, formerly known as Citrix Access Gateway Enterprise Edition.

This vulnerability could potentially be used to execute malicious client-side 
script in the same context as legitimate content from the web server; if this 
vulnerability is used to execute script in the browser of an authenticated 
user then the script may be able to gain access to the authenticated user's 
session or other potentially sensitive information.

This vulnerability has been assigned the following CVE number:

CVE-2014-1899: Cross-Site Scripting vulnerability in Citrix NetScaler Gateway, 
formerly Citrix Access Gateway Enterprise Edition.

This vulnerability is present in versions of all versions of Citrix NetScaler 
Gateway 10.x earlier than version 10.1.123.9 and all versions of Citrix Access 
Gateway Enterprise Edition 9.x earlier than 9.3.66.5.

What Customers Should Do

This vulnerability has been addressed in new versions of the Citrix NetScaler 
Gateway software. Citrix recommends that customers upgrade their Citrix 
NetScaler Gateway appliances to version 10.1.123.9 and later, or version 
9.3.66.5 and later.

These upgrades can be obtained from the Citrix website at the following 
location:

Citrix NetScaler Gateway:

https://www.citrix.com/downloads/netscaler-gateway/product-software.html

Please note that a MyCitrix account is required to access this location.

Acknowledgements

Citrix thanks Benjamin Matt and Thierry Zoller of Verizon 
(http://www.verizon.com) for working with us to protect Citrix customers.

What Citrix Is Doing

Citrix is notifying customers and channel partners about this potential 
security issue. This article is also available from the Citrix Knowledge 
Center at http://support.citrix.com/.

Obtaining Support on This Issue

If you require technical assistance with this issue, please contact Citrix 
Technical Support. Contact details for Citrix Technical Support are available
at http://www.citrix.com/site/ss/supportContacts.asp.

Reporting Security Vulnerabilities to Citrix

Citrix welcomes input regarding the security of its products and considers any
and all potential vulnerabilities seriously. If you would like to report a 
security issue to Citrix, please compose an e-mail to secure@citrix.com 
stating the exact version of the product in which the vulnerability was found 
and the steps needed to reproduce the vulnerability.

Applicable Products

    Access Gateway 10
    Access Gateway 9.3 Enterprise Edition
    NetScaler 9.3
    NetScaler Gateway 10.1

- --------------------------END INCLUDED TEXT--------------------

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This security bulletin is provided as a service to AusCERT's members.  As
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NOTE: This is only the original release of the security bulletin.  It may
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Previous advisories and external security bulletins can be retrieved from:

        http://www.auscert.org.au/render.html?cid=1980

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================
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