Description of Problem
A vulnerability has been identified in Citrix Licensing that could allow a remote, unauthenticated?? attacker to crash the License Server and potentially execute arbitrary code on the server.
This vulnerability affects the following products:
- Citrix License Server for Windows earlier than version 184.108.40.206
- Citrix License Server VPX earlier than version 220.127.116.11
In addition to the above, the vulnerable component is included in some other Citrix products. Please see the following section for more specific product guidance. This document will be updated as our investigation continues.
Additional Affected Products
We are currently investigating the potential impact of this vulnerability on Citrix CloudBridge and this section will be updated as more information becomes available.
Citrix NetScaler and NetScaler Gateway:
Citrix NetScaler and NetScaler Gateway, both MPX and VPX, are not affected by this vulnerability. Citrix NetScaler SVM and Insight Center are currently in the process of being investigated and this section will be updated when more information is available.
Citrix Command Center:
Citrix Command Center is not affected by this vulnerability.
- XenMobile Server 10.3.x
- XenMobile Server 10.1.x
- XenMobile Server 10.0.x??
- XenMobile Device Manager 9.0
Citrix XenMobile App Controller version 9.0.x is not affected by this vulnerability.
Customers using Citrix XenMobile Device Manager 9.0.x should verify the version of Citrix Licensing installed and upgrade the local License Server for Windows to version 18.104.22.168 or later.
Customers using Citrix XenMobile Server 10.3.x, 10.1.x and 10.0.x should note that, due to the way the server is configured, the potential impact of this vulnerability on the local License Server is greatly reduced. Citrix is currently in the process of creating patches for this issue and this bulletin will be updated when further information is available.
ByteMobile Unison Traffic Manager, ByteMobile Reporting Dashboard, ByteMobile Data Loader, and T2000 that use Flexera software are unaffected by this vulnerability. This section will be updated when further information is available.
In order to exploit this issue, an attacker would need network access to the License Server. In most deployments, the License Server would not be exposed to the public Internet.??
What Customers Should Do
Citrix has released a new version of the License Server for Windows and the License Server VPX that addresses this vulnerability. Citrix strongly recommends that customers upgrade to the following versions:
- Citrix License Server for Windows version 22.214.171.124 or later
- Citrix License Server VPX version 126.96.36.199 or later
These new versions can be downloaded from the following location:
What Citrix Is Doing
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
Citrix welcomes input regarding the security of its products and considers any and all potential vulnerabilities seriously. For guidance on how to report security-related issues to Citrix, please see the following document: CTX081743 –?? Reporting Security Issues to Citrix
|March 10th 2016||Initial bulletin publishing|
|March 10th 2016||Added XenMobile products to Applicable Products section|
|March 10th 2016||Added ByteMobile products to Additional Affected Products section|
|March 14th 2016||Update to XenMobile section|