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AUSCERT External Security Bulletin Redistribution
ESB-2013.1519
Vulnerability in XenDesktop 7.0 upgrade could result in policy bypass
24 October 2013
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AusCERT Security Bulletin Summary
---------------------------------
Product: Citrix XenDesktop
Publisher: Citrix
Operating System: Windows
Impact/Access: Reduced Security -- Unknown/Unspecified
Resolution: Mitigation
CVE Names: CVE-2013-6077
Original Bulletin:
http://support.citrix.com/article/CTX138627
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Vulnerability in XenDesktop 7.0 upgrade could result in policy bypass
Document ID: CTX138627
Created On: Oct 22, 2013
Updated On: Oct 22, 2013
Average Rating: 5 (1 ratings)
View products this document applies to link to products this document applies
to
Severity: Medium
Description of Problem
A vulnerability has been identified in Citrix XenDesktop 7.0 that could prevent
policy rules from being correctly applied following an upgrade from earlier
versions of Citrix XenDesktop.
This vulnerability affects deployments of Citrix XenDesktop that have been
upgraded from version 5.6 or earlier to version 7.0. Customers upgrading from
Citrix XenDesktop version 5.6 or earlier directly to Citrix XenDesktop version
7.1 are not affected by this vulnerability.
This vulnerability has been assigned the following CVE number:
- - CVE-2013-6077: Failure to correctly apply policy rule permissions following
upgrade of Citrix XenDesktop from version 5.x to version 7.0.
What Customers Should Do
Customers that have upgraded from Citrix XenDesktop version 5.6 or earlier to
Citrix XenDesktop version 7.0 are advised to verify that that their policy
rules have the correct permissions. Further information on how to verify and
reset policy rule permissions can be found in the Citrix Knowledge Center and
the location below:
CTX139335 - How to Use PowerShell to Reset BrokerAccessPolicyRule Settings for
XenDesktop
Customers currently planning upgrades from Citrix XenDesktop 5.6 or earlier may
wish to consider upgrading to version 7.1 directly.
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:
XenDesktop 7
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