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Date: Wed, 30 Oct 2013 18:29:16 +0000 (UTC)
Subject: [Security-news] SA-CONTRIB-2013-084 - FileField
	Sources - Access	Bypass

View online:

  * Advisory ID: DRUPAL-SA-CONTRIB-2013-084
  * Project: FileField Sources [1] (third-party module)
  * Version: 6.x, 7.x
  * Date: 2013-Oct-30
  * Security risk: Moderately critical [2]
  * Exploitable from: Remote
  * Vulnerability: Access bypass

-------- DESCRIPTION  

This module expands on the FileField module by allowing you to select new or
existing files through additional means, such as re-using files with an
auto-complete textfield, attaching server-side files uploaded via FTP,
transferring file files from a remote server, pasting a file directly from
the clipboard, and selecting existing files through the IMCE file browser.

The module doesn't sufficiently check file access permissions when attaching
an existing file. Any existing file could be re-used and the user would then
be granted access to that file.

This vulnerability is mitigated by the fact that an attacker must have a
permission granting the ability to create content which has a file field
using the module.


  * /A CVE identifier [3] will be requested, and added upon issuance, in
    accordance with Drupal Security Team processes./


  * Filefield Sources 6.x-1.x versions prior to 6.x-1.9.
  * Filefield Sources 7.x-1.x versions prior to 7.x-1.9.

Drupal core is not affected. If you do not use the contributed FileField
Sources [4] module, there is nothing you need to do.

-------- SOLUTION  

Install the latest version:

  * If you use the FileField Sources module for Drupal 6.x, upgrade to
    FileField Sources 6.x-1.9 [5]
  * If you use the FileField Sources module for Drupal 7.x, upgrade to
    FileField Sources 7.x-1.9 [6]

Also see the FileField Sources [7] project page.

-------- REPORTED BY  

  * Joseph Lee [8]

-------- FIXED BY  

  * Nathan Haug [9] the module maintainer
  * Cash Williams [10] provisional member of the Drupal Security Team


  * Cash Williams [11] provisional member of the Drupal Security Team
  * David Stoline [12] of the Drupal Security Team


The Drupal security team can be reached at security at or via the
contact form at [13].

Learn more about the Drupal Security team and their policies [14], writing
secure code for Drupal [15], and securing your site [16].


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