UPDATE Citrix Provisioning Services: Execute Arbitrary Code/Commands -- Remote/Unauthenticated

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             AUSCERT External Security Bulletin Redistribution

                              ESB-2012.0429.2
        Vulnerability in Citrix Provisioning Services Could Result
                        in Arbitrary Code Execution
                               27 July 2012

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

Product:           Citrix Provisioning Services
Publisher:         Citrix
Operating System:  Windows
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2012-4068  

Original Bulletin: 
   http://support.citrix.com/article/CTX133039

Revision History:  July 27 2012: Added CVE reference
                   May   3 2012: Initial Release

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Vulnerability in Citrix Provisioning Services Could Result in Arbitrary Code 
Execution

Document ID: CTX133039  
Created On: May 1, 2012 
Updated On: May 1, 2012

Average Rating: 5 (2 ratings)

Severity: High

Description of Problem

A vulnerability has been identified in Citrix Provisioning Services that could 
result in arbitrary code execution. This vulnerability can be triggered by an 
attacker sending a specially crafted packet to the Provisioning Services 
server.

This vulnerability is present in all supported versions of Citrix Provisioning 
Services up to and including version 6.1.

Mitigating Factors

In a typical deployment, the vulnerable component will not be accessible from 
the Internet.

What Customers Should Do

This vulnerability has been addressed in a series of hotfixes for affected 
versions of Citrix Provisioning Services. Citrix strongly recommends that 
customers apply the required hotfix for their Provisioning Services 
deployments. These hotfixes can be found at the following locations:

Citrix Provisioning Services 6.1:

http://support.citrix.com/article/CTX133149

Citrix Provisioning Services 6.0:

http://support.citrix.com/article/CTX133148

Citrix Provisioning Services 5.6 Service Pack 3:

http://support.citrix.com/article/CTX133187

Acknowledgements

Citrix thanks an anonymous researcher, working with iDefense 
(http://www.idefense.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

This document applies to:

    Provisioning Services 5.0
    Provisioning Services 5.1
    Provisioning Services 5.6
    Provisioning Services 5.6 Service Pack 1
    Provisioning Services 6.0
    Provisioning Services 6.1

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