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Citrx Command Center Advent JMX Servlet Accessible

Citrx Command Center Advent JMX Servlet Accessible
Posted Mar 20, 2015
Authored by Han Sahin

It was discovered that the Advent JMX Servlet of Citrix Command Center is accessible to unauthenticated users. This issue can be abused by attackers to comprise the entire application. It also suffers from a cross site scripting vulnerability.

tags | exploit, xss, bypass
MD5 | 654ea83b4f8835317d17c06f0d8566f1

Citrx Command Center Advent JMX Servlet Accessible

Change Mirror Download
------------------------------------------------------------------------
Advent JMX Servlet of Citrx Command Center is accessible to
unauthenticated users
------------------------------------------------------------------------
Han Sahin, August 2014

------------------------------------------------------------------------
Abstract
------------------------------------------------------------------------
It was discovered that the Advent JMX Servlet of Citrix Command Center
is accessible to unauthenticated users. This issue can be abused by
attackers to comprise the entire application.

------------------------------------------------------------------------
Tested version
------------------------------------------------------------------------
This issue was discovered in Citrix Command Center 5.1 build 33.3
(including patch CC_SP_5.2_40_1.exe), other versions may also be
vulnerable.

------------------------------------------------------------------------
Fix
------------------------------------------------------------------------
Citrix reports that this vulnerability is fixed in Command Center 5.2
build 42.7, which can be downloaded from the following location (login
required).
https://www.citrix.com/downloads/command-center/product-software/command-center-52-427.html

Citrix assigned BUG0494204 to this issue.

------------------------------------------------------------------------
Details
------------------------------------------------------------------------
https://www.securify.nl/advisory/SFY20140804/advent_jmx_servlet_of_citrx_command_center_is_accessible_to_unauthenticated_users.html

The Advent JMX Servlet is exposed at /servlets/Jmx_dynamic. Functionality exposed by the JMX Servlet can be invoked by an unauthenticated attacker, which can lead to unauthorized remote code execution and comprise of the entire application and services. In addition, this interface is also affected by Cross-Site Scripting. For example:

https://<target>:8443/servlets/Jmx_dynamic?fname=<script>alert(document.cookie);</script>

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