[UNIX] dotproject Remote File Access Vulnerability

From: support@securiteam.com
Date: 01/30/03

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    From: support@securiteam.com
To: list@securiteam.com
Date: 30 Jan 2003 11:21:43 +0200

    The following security advisory is sent to the securiteam mailing list, and can be found at the SecuriTeam web site: http://www.securiteam.com
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      dotproject Remote File Access Vulnerability
    ------------------------------------------------------------------------

    SUMMARY

    dotproject is a PHP+MySQL beta level web based project management and
    tracking tool that dotmarketing started in Dec. 2000. A vulnerability
    exists in a file named core.php that is found in the /locale/ directory.
    Because there is neither .htaccess set on this directory nor any security
    check in core.php, an attacker may call it directly and read local files
    with web server permissions.

    DETAILS

    Here is the code of core.php:
    ********
    <?php
    ob_start();
    @readfile( "$root_dir/locales/$AppUI->user_locale/common.inc" );
    @readfile( "$root_dir/locales/$AppUI->user_locale/$m.inc" );
    .
    ********

    We can see that $root_dir is never defined before and may be injected if
    globals are on. An attacker may type in the browser the following URI:
    http://victim/dotproject/locales/core.php?root_dir=/file_or_dir_path/%00

    Here %00 just ignores everything that comes after it so that the attack
    may be able to read any file on the server.

    Solution:
    Please check the vendor's website for new patches. As a temporary
    solution, create a .htaccess file that contains 'Deny from all'. Place it
    in the /locale/ directory and that should block remote users from
    accessing it.

    ADDITIONAL INFORMATION

    The information has been provided by <mailto:mindwarper@hush.com>
    Mindwarper.

    ========================================

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