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

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Date: Thu, 21 Jun 2012 08:02:26 -0700
From: Gage Bystrom <themadichib0d@...il.com>
To: full-disclosure@...ts.grok.org.uk
Subject: Re: WordPress Authenticated File Upload
 Authorisation Bypass

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
>
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