bugtraq - Re: Wordpress - Broken Access Control

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Message-ID: <20071219212901.GA5252@deaddog.org>
Date: Thu, 20 Dec 2007 05:29:01 +0800
From: Abel Cheung <abelcheung@...il.com>
To: bugtraq@...urityfocus.com
Subject: Re: Wordpress - Broken Access Control

On 2007-12-16(Sun) 10:07:29 -0000, otto@...odestruct.com wrote:
> The is_admin() function is not supposed to tell whether a user is an administrator or not, it tells whether the user is looking at one of the administration pages. As such, this function does exactly what it is supposed to do.
> 
> As for the rest, there is no flaw. To view a draft, the user must authenticate and have the correct capability set. There is no way to view drafts without being logged in and having that capability set on the user's role level.
> 
> This "vulnerability" is non-existent.

Here I confirm the validity of the vulnerability:

Machine: Windows 2000 SP4, Apache 2.2.4, MySQL 5.0.45
Wordpress version tested: 2.2.0, 2.2.3, 2.3.1
Everytime the URL http://localhost/wordpress/index.php/wp-admin/ is
used, and user is NOT logged in. In each wordpress version draft
posts are indeed shown.

And according to wordpress bug report, a patch is applied on
19th to address the problem.

Abel
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