Re: [Full-disclosure] WordPress <= 2.8.5 Unrestricted File Upload Arbitrary PHP Code Execution

[Martin Aberastegue <xyborg@xxxxxxxxx>]

The same here tested on Wordpress 2.8.5 / Apache/2.0.63 (Unix)
mod_ssl/2.0.63 OpenSSL/0.9.7a mod_auth_passthrough/2.1
mod_bwlimited/1.4 FrontPage/5.0.2.2635 - PHP/5.2.6

Regards

--
Martin Aberastegue
http://www.martinaberastegue.com/



On Thu, Nov 12, 2009 at 9:48 AM, Milan Berger
<m.berger@xxxxxxxxxxxxxxxxxxxxx> wrote:
> Hi there,
>
>> IV. PROOF OF CONCEPT
>> -------------------------
>> Browser is enough to replicate this issue. Simply log in to your
>> wordpress blog as a low privileged
>> user or admin. Create a new post and use the media file upload
>> feature to upload a file:
>>
>> test-image.php.jpg
>>
>> containing the following code:
>>
>> <?php
>>       phpinfo();
>> ?>
>>
>> After the upload you should receive a positive response saying:
>>
>> test-vuln.php.jpg
>> image/jpeg
>> 2009-11-11
>>
>> and it should be possible to request the uploaded file via a link:
>> http://link-to-our-wp-unsecured-blog.com/wp-content/uploads/2009/11/test-vuln.php.jpg
>
> tried this with lighttpd and wordpress 2.8.5 and PHP 5.2.11-pl0-gentoo
> with Suhosin-Patch 0.9.7
> Shows a broken image no code executed.
>
> --
> Kind Regards
>
> Milan Berger
> Project-Mindstorm Technical Engineer
>
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_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/