full-disclosure - Re: WordPress Authenticated File Upload Authorisation Bypass

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Message-ID: <4FE351F9.7020307@upv.es>
Date: Thu, 21 Jun 2012 18:55:21 +0200
From: Hector Marco <hecmargi@....es>
To: full-disclosure@...ts.grok.org.uk
Subject: Re: WordPress Authenticated File Upload
 Authorisation Bypass


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1.- "WordPress Authenticated File Upload Authorisation Bypass" ... where
is the "Bypass" ?
2.- "A malicious user with access to the admin panel" .. this user does
not need any more :)



El 21/06/12 17:02, Gage Bystrom escribió:
> to me it seems like hes trying to say that someone with administrative
> access has the ability to....have administrative access. Its like
> saying "Hey guys! I found a local exploit and all it requires is to be
> a root user!!!"
>
> I'm not sure if he's trolling or just stupid.
>
> On Thu, Jun 21, 2012 at 7:42 AM, Greg Knaddison
> <greg.knaddison@...uia.com> wrote:
>> On Wed, Jun 20, 2012 at 8:04 PM, Denis Andzakovic
>> <denis.andzakovic@...urity-assessment.com> wrote:
>>>
>>> Exploitation of this vulnerability requires a malicious user with
>>> access to the admin panel to use the
>>> "/wp-admin/plugin-install.php?tab=upload" page to upload a malicious
>>> file.
>>
>>
>> That tool is meant to allow an admin to upload arbitrary php plugins. You
>> can argue that this feature is insecure by design, but there are two
>> solutions from the WordPress perspective:
>>
>> 1) "Don't grant malicious users the permission to install plugins."
>> 2) If you don't want this feature on your site at all, this feature can be
>> disabled in the config define( 'DISALLOW_FILE_MODS', TRUE);
>>
>> By the way, two more "vulnerabilities" the theme installer has this same
>> issue and the upgrade tool could also be abused if you can poison the
DNS of
>> the server.
>>
>> Regards,
>> Greg
>>
>> _______________________________________________
>> Full-Disclosure - We believe in it.
>> Charter: http://lists.grok.org.uk/full-disclosure-charter.html
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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/

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