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             AUSCERT External Security Bulletin Redistribution

              Citrix CloudPlatform Multiple Security Updates
                               29 April 2013


        AusCERT Security Bulletin Summary

Product:           Citrix CloudPlatform
Publisher:         Citrix
Operating System:  Red Hat Enterprise Linux Server 5
                   Red Hat Enterprise Linux Server 6
Impact/Access:     Access Confidential Data -- Remote/Unauthenticated
                   Unauthorised Access      -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2013-2758 CVE-2013-2757 CVE-2013-2756

Original Bulletin: 

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Citrix CloudPlatform Multiple Security Updates

Document ID: CTX135815
Created On: 24/04/2013
Updated On: 24/04/2013

Severity: Critical

Description of Problem

A number of security vulnerabilities have been identified in Citrix 
CloudPlatform, formerly known as CloudStack. These vulnerabilities have been 
assigned the following CVE numbers:
- - CVE-2013-2756: Console proxy authentication bypass vulnerability
- - CVE-2013-2757: Unauthenticated VNC ports available on the management network
- - CVE-2013-2758: Console proxy URLs may contain sensitive information

These vulnerabilities affect all versions of CloudPlatform 3.0.x up to and 
including 3.0.6 with patch B applied when deployed with XenServer, other Xen 
hypervisors or KVM.

What Customers Should Do

A security patch has been released to address these issues. Citrix strongly 
recommends that all affected customers upgrade to version 3.0.6 of Citrix 
CloudPlatform and apply this patch. This patch can be downloaded from the 
following locations:
Citrix CloudPlatform:
RedHat Enterprise Linux 5: CTX137279 CloudPlatform 3.0.6 PatchC - RHEL 5
RedHat Enterprise Linux 6.2: CTX137280 CloudPlatform 3.0.6 PatchC - RHEL 6.2
RedHat Enterprise Linux 6.3: CTX137281 CloudPlatform 3.0.6 PatchC (RHEL 6.3)

Customers using Citrix CloudStack 2.2.x, or CloudPlatform 3.0.x that cannot 
upgrade to 3.0.6, should contact their Citrix Customer Support representative 
for further information. Customers upgrading from affected versions of 
CloudPlatform should ensure that all hypervisors are appropriately configured 
for the new version of CloudPlatform.

Citrix also recommends that customers consider making the following changes 
to their CloudPlatform deployments:
- - Customers should avoid the use of realhostip.com SSL certificates for 
production environments. Please see Citrix Knowledge Center article 
CTX133468 How to Replace realhostip.com with Your Own Domain Name for further 
information on how to configure your CloudPlatform deployment.
- - In line with best practice, customers should ensure that the CloudPlatform 
management network is segregated from all other traffic.


Citrix thanks Wolfram Schlich and Mathijs Schmittmann 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 

This document applies to:

CloudStack 3.0
CloudStack 3.0.6

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