CVE-2014-8558 - JExperts Tecnologia / Channel Software Escalation Access
Issues
Vendor Notified: 2014-10-27


INTRODUCTION:

The Channel Platform is an enterprise software project management (or
project management) developed by Brazilian company JExperts Technology and
present at thousands clients private enterprise and government enterprise.
This software consists of an integrated set of solutions in the areas of
strategy, projects and processes.


This problem was confirmed in the following versions of the Channel, other
versions maybe also affected.

Version: 5.0.33_CCB


DETAILS:

The Channel software is affected by Escalation Access. The variables
"action" and "key" can be manipulate by the GET method (passing parameters
at the URL itself), where a user, with restricted access, such as "read
only", can realize access to any other request of the call center of a user
other than him and even create or edit existing content posted of other
users.

A logged with any user at the system, just change the parameter of the
action ("action" variable) and the value of the key ("key" variable) to be
manipulated to get unauthorized access to the areas of others users.


Examples:

[1] set action to "acompanhar" and key to "201"
http://<server>/channel/ticket.do?action=acompanhar&key=201


[2] set action to "editar" and key to "100"
http://<server>/channel/ticket.do?action=editar&key=100



CREDITS:

This vulnerability was discovered and researched by Luciano Pedreira
(a.k.a. shark)