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             AUSCERT External Security Bulletin Redistribution

       Multiple Vulnerabilities in Citrix XenServer Web Self Service
                             17 February 2012


        AusCERT Security Bulletin Summary

Product:           Citrix XenServer Web Self Service
Publisher:         Citrix
Operating System:  Windows
Impact/Access:     Reduced Security -- Unknown/Unspecified
Resolution:        Patch/Upgrade

Original Bulletin: 

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Multiple Vulnerabilities in Citrix XenServer Web Self Service

Document ID: CTX132219

Created On: 15-Feb-2012

Updated On: 15-Feb-2012

Average Rating: not yet rated

Severity: Medium

Description of Problem

A number of security vulnerabilities have been identified in the management web
interface of Citrix XenServer Web Self Service. These vulnerabilities affect
all currently supported versions of Web Self Service prior to version 1.1.1.

Mitigating Factors

Customers who have installed XenServer but have not additionally downloaded and
installed the optional Web Self Service component are not affected by these

What Customers Should Do

These vulnerabilities have been addressed in a new version of the Web Self
Service virtual appliance. Citrix recommends that customers using Web Self
Service upgrade their virtual appliance to version 1.1.1.

The new version of the Web Self Service virtual appliance can be obtained from
the following location:


Citrix thanks Maxin Tsoy, Kirill Mosolov and Ilya Smith of Positive Research
Center (http://www.ptsecurity.com/) for working with us to protect Citrix

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.

This document applies to:

XenServer 5.5
XenServer 5.6
XenServer 5.6 FP 1
XenServer 5.6 SP 2
XenServer 6.0

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