[Security-news] SA-CONTRIB-2016-008 - FileField - Denial of Service

[security-news at drupal.org]

View online: https://www.drupal.org/node/2674854

   * Advisory ID: DRUPAL-SA-CONTRIB-2016-008
   * Project: FileField [1]     (third-party module)
   * Version: 6.x
   * Date: 2016-February-24
   * Security risk: 11/25 ( Moderately Critical)
     AC:Complex/A:User/CI:None/II:Some/E:Proof/TD:All [2]
   * Vulnerability: Denial of Service

-------- DESCRIPTION
---------------------------------------------------------

FileField module allows users to upload files in conjunction with the Content
Construction Kit (CCK) module in Drupal 6.

The module doesn't validate that a request to delete a temporary file was
made by the user who uploaded the file.  An attacker can use this
vulnerability to delete other user's file uploads while they are in the
process of creating or editing content and attaching files (before it is
saved).  This can be used as a denial of service (DoS) attack that can
prevent file uploads from working on the site.

This vulnerability is mitigated by the fact that an attacker must have a role
with the permission to create content and upload files using a file (or
image) field.


-------- CVE IDENTIFIER(S) ISSUED
--------------------------------------------

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

-------- VERSIONS AFFECTED
---------------------------------------------------

   * FileField module 6.x-3.x versions prior to 6.x-3.14.

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

-------- SOLUTION
------------------------------------------------------------

Install the latest version:

   * If you use the File Filed module for Drupal 6.x, upgrade to FileField
     6.x-3.14 [5]

Also see the FileField [6] project page.

-------- REPORTED BY
---------------------------------------------------------

   * fnqgpc [7]

-------- FIXED BY
------------------------------------------------------------

   * Peter Wolanin [8] of the Drupal Security Team

-------- COORDINATED BY
------------------------------------------------------

   * Peter Wolanin [9] of the Drupal Security Team

-------- CONTACT AND MORE INFORMATION
----------------------------------------

The Drupal security team can be reached at security at drupal.org or via the
contact form at https://www.drupal.org/contact [10].

Learn more about the Drupal Security team and their policies [11], writing
secure code for Drupal [12], and  securing your site [13].

Follow the Drupal Security Team on Twitter at
https://twitter.com/drupalsecurity [14]


[1] https://www.drupal.org/project/filefield
[2] https://www.drupal.org/security-team/risk-levels
[3] http://cve.mitre.org/
[4] https://www.drupal.org/project/filefield
[5] https://www.drupal.org/node/2674868
[6] https://www.drupal.org/project/filefield
[7] https://www.drupal.org/user/3250434
[8] https://www.drupal.org/user/49851
[9] https://www.drupal.org/user/49851
[10] https://www.drupal.org/contact
[11] https://www.drupal.org/security-team
[12] https://www.drupal.org/writing-secure-code
[13] https://www.drupal.org/security/secure-configuration
[14] https://twitter.com/drupalsecurity