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Re: WordPress Authenticated File Upload Authorisation Bypass
From: Greg Knaddison <greg.knaddison () acquia com>
Date: Thu, 21 Jun 2012 08:42:27 -0600
On Wed, Jun 20, 2012 at 8:04 PM, Denis Andzakovic < denis.andzakovic () security-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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Current thread:
- WordPress Authenticated File Upload Authorisation Bypass Denis Andzakovic (Jun 21)
- Re: WordPress Authenticated File Upload Authorisation Bypass PsychoBilly (Jun 21)
- Re: WordPress Authenticated File Upload Authorisation Bypass Greg Knaddison (Jun 21)
- Re: WordPress Authenticated File Upload Authorisation Bypass Gage Bystrom (Jun 21)
- Re: WordPress Authenticated File Upload Authorisation Bypass valdis . kletnieks (Jun 21)
- Re: WordPress Authenticated File Upload Authorisation Bypass Hector Marco (Jun 21)
- Re: WordPress Authenticated File Upload Authorisation Bypass Denis Andzakovic (Jun 21)
- Re: WordPress Authenticated File Upload Authorisation Bypass Benji (Jun 21)
- Re: WordPress Authenticated File Upload Authorisation Bypass Carlos Alberto Lopez Perez (Jun 21)
- Re: WordPress Authenticated File Upload Authorisation Bypass Gage Bystrom (Jun 21)