Re: HTB22905: Path disclosure in Wordpress

[Patrick Kelley <psworn@xxxxxxxxx>]

Seems like most of the "vulnerabilities" from the last couple days are
not actual software issues, but problems with configuration of the
server or just not following the directions provided by the vendor.

If that is our measure for vulnerability, I can show about 10 for the
wristwatch I am wearing...

On Tue, Mar 29, 2011 at 11:42 AM, Christian Sciberras <uuf6429@xxxxxxxxx> wrote:
> Ridiculous! I've been talking about this for some time, the actual
> list of vulnerable files follows:
>
> wp-admin\admin-functions.php
> wp-admin\includes\admin.php
> wp-admin\includes\class-ftp-pure.php
> wp-admin\includes\class-ftp-sockets.php
> wp-admin\includes\class-wp-filesystem-direct.php
> wp-admin\includes\class-wp-filesystem-ftpext.php
> wp-admin\includes\class-wp-filesystem-ftpsockets.php
> wp-admin\includes\class-wp-filesystem-ssh2.php
> wp-admin\includes\comment.php
> wp-admin\includes\continents-cities.php
> wp-admin\includes\file.php
> wp-admin\includes\media.php
> wp-admin\includes\misc.php
> wp-admin\includes\ms.php
> wp-admin\includes\nav-menu.php
> wp-admin\includes\plugin-install.php
> wp-admin\includes\plugin.php
> wp-admin\includes\schema.php
> wp-admin\includes\template.php
> wp-admin\includes\theme-install.php
> wp-admin\includes\update.php
> wp-admin\includes\upgrade.php
> wp-admin\includes\user.php
> wp-admin\maint\repair.php
> wp-admin\menu-header.php
> wp-admin\menu.php
> wp-admin\options-head.php
> wp-admin\upgrade-functions.php
> wp-config.php
> wp-content\themes\twentyten\404.php
> wp-content\themes\twentyten\archive.php
> wp-content\themes\twentyten\attachment.php
> wp-content\themes\twentyten\author.php
> wp-content\themes\twentyten\category.php
> wp-content\themes\twentyten\comments.php
> wp-content\themes\twentyten\footer.php
> wp-content\themes\twentyten\functions.php
> wp-content\themes\twentyten\header.php
> wp-content\themes\twentyten\loop.php
> wp-content\themes\twentyten\onecolumn-page.php
> wp-content\themes\twentyten\page.php
> wp-content\themes\twentyten\search.php
> wp-content\themes\twentyten\sidebar-footer.php
> wp-content\themes\twentyten\sidebar.php
> wp-content\themes\twentyten\single.php
> wp-content\themes\twentyten\tag.php
> wp-includes\Text\Diff\Engine\native.php
> wp-includes\Text\Diff\Engine\string.php
> wp-includes\Text\Diff\Engine\xdiff.php
> wp-includes\Text\Diff\Renderer\inline.php
> wp-includes\Text\Diff\Renderer.php
> wp-includes\Text\Diff.php
> wp-includes\cache.php
> wp-includes\canonical.php
> wp-includes\class-feed.php
> wp-includes\class-simplepie.php
> wp-includes\class-snoopy.php
> wp-includes\class.wp-scripts.php
> wp-includes\class.wp-styles.php
> wp-includes\classes.php
> wp-includes\comment-template.php
> wp-includes\default-embeds.php
> wp-includes\default-filters.php
> wp-includes\default-widgets.php
> wp-includes\feed-atom-comments.php
> wp-includes\feed-atom.php
> wp-includes\feed-rdf.php
> wp-includes\feed-rss.php
> wp-includes\feed-rss2-comments.php
> wp-includes\feed-rss2.php
> wp-includes\general-template.php
> wp-includes\js\tinymce\langs\wp-langs.php
> wp-includes\js\tinymce\plugins\spellchecker\classes\EnchantSpell.php
> wp-includes\js\tinymce\plugins\spellchecker\classes\GoogleSpell.php
> wp-includes\js\tinymce\plugins\spellchecker\classes\PSpell.php
> wp-includes\js\tinymce\plugins\spellchecker\classes\PSpellShell.php
> wp-includes\js\tinymce\plugins\spellchecker\config.php
> wp-includes\js\tinymce\wp-mce-help.php
> wp-includes\kses.php
> wp-includes\l10n.php
> wp-includes\media.php
> wp-includes\ms-default-constants.php
> wp-includes\ms-default-filters.php
> wp-includes\ms-functions.php
> wp-includes\ms-settings.php
> wp-includes\nav-menu-template.php
> wp-includes\post.php
> wp-includes\query.php
> wp-includes\registration-functions.php
> wp-includes\rss-functions.php
> wp-includes\rss.php
> wp-includes\script-loader.php
> wp-includes\shortcodes.php
> wp-includes\taxonomy.php
> wp-includes\template-loader.php
> wp-includes\theme-compat\comments-popup.php
> wp-includes\theme-compat\comments.php
> wp-includes\theme-compat\footer.php
> wp-includes\theme-compat\header.php
> wp-includes\theme-compat\sidebar.php
> wp-includes\theme.php
> wp-includes\update.php
> wp-includes\user.php
> wp-includes\vars.php
> wp-includes\widgets.php
> wp-includes\wp-db.php
> wp-includes\wp-diff.php
> wp-settings.php
>
> That's some 30%-40% of all Wordpress files (depending on Wordpress install).
>
> I considered making this public but...
>
> http://codex.wordpress.org/Security_FAQ
>
> Read the 5th clause.
>
>
> Chris.
>
>
>
>
>
> On Tue, Mar 29, 2011 at 11:55 AM, <advisory@xxxxxxxxxxx> wrote:
>>
>> Vulnerability ID: HTB22905
>> Reference: http://www.htbridge.ch/advisory/path_disclosure_in_wordpress.html
>> Product: Wordpress
>> Vendor: http://wordpress.org/ ( http://wordpress.org/ )
>> Vulnerable Version: 3.1
>> Vendor Notification: 15 March 2011
>> Vulnerability Type: Path disclosure
>> Status: Not Fixed
>> Risk level: Low
>> Credit: High-Tech Bridge SA - Ethical Hacking & Penetration Testing 
>> (http://www.htbridge.ch/)
>>
>> Vulnerability Details:
>> The vulnerability exists due to failure in the "/wp-includes/theme-compat/" 
>> & "/wp-content/themes/twentyten/" scripts, it's possible to generate an 
>> error that will reveal the full path of the script.
>> A remote user can determine the full path to the web root directory and 
>> other potentially sensitive information.
>>
>> The following PoC is available:
>>
>> [code]
>> /wp-includes/theme-compat/comments-popup.php
>> /wp-includes/theme-compat/comments.php
>> /wp-includes/theme-compat/footer.php
>> /wp-includes/theme-compat/sidebar.php
>> /wp-content/themes/twentyten/index.php
>> /wp-content/themes/twentyten/404.php
>> /wp-content/themes/twentyten/archive.php
>> [/code]
>>
>>
>