[Security-news] SA-CONTRIB-2014-069 - Logintoboggan - Access Bypass and Cross Site Scripting (XSS)

[security-news at drupal.org]

View online: https://www.drupal.org/node/2300369

   * Advisory ID: DRUPAL-SA-CONTRIB-2014-069
   * Project: LoginToboggan [1] (third-party module)
   * Version: 7.x
   * Date: 2014-July-09
   * Security risk: Moderately critical [2]
   * Exploitable from: Remote
   * Vulnerability: Cross Site Scripting, Access bypass

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

This module enables you to customise the standard Drupal registration and
login processes.

-------- CROSS SITE SCRIPTING
------------------------------------------------

The module doesn't filter user-supplied information from the URL resulting in
a reflected Cross Site Scripting (XSS) vulnerability.
-------- ACCESS BYPASS
-------------------------------------------------------

The module introduces a concept of a "pre-authorized role" which can have
different permissions than the normal Drupal core authorized role.
Logintoboggan usually removes permissions for a user if those permissions are
in the "authorized user" role and not in the "pre-authorized role". The
module failed to remove those permissions for users in a pre-authorized state
on all "Page Not Found" (i.e. 404) pages.

This vulnerability is mitigated by the fact that a site must use the
"pre-authorized role" feature and an attacker would only gain permissions
available to authenticated users and would only gain them on 404 pages which
do not show private information in a default Drupal installation.

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

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

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

   * Logintoboggan 7.x-1.x versions prior to 7.x-1.4

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

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

Install the latest version:

   * If you use the Logintoboggan module for Drupal 7.x, upgrade to
     Logintoboggan 7.x-1.4 [5]

Also see the LoginToboggan [6] project page.

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

   * Mark Mahon [7]
   * Joel Walters [8]

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

   * Steve Cowie [9] the module maintainer
   * Dan Smith [10] of the Drupal Security Team
   * Joel Walters [11]
   * Mark Davies [12]

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

   * Dan Smith [13] 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 http://drupal.org/contact [14].

Learn more about the Drupal Security team and their policies [15], writing
secure code for Drupal [16], and securing your site [17].

Follow the Drupal Security Team on Twitter at
https://twitter.com/drupalsecurity [18]


[1] http://drupal.org/project/logintoboggan
[2] http://drupal.org/security-team/risk-levels
[3] http://cve.mitre.org/
[4] http://drupal.org/project/logintoboggan
[5] https://www.drupal.org/node/2299467
[6] http://drupal.org/project/logintoboggan
[7] https://www.drupal.org/user/1899214
[8] https://www.drupal.org/user/1052318
[9] https://www.drupal.org/user/110518
[10] https://www.drupal.org/user/241220
[11] https://www.drupal.org/user/1052318
[12] https://www.drupal.org/user/243300
[13] http://drupal.org/user/241220
[14] http://drupal.org/contact
[15] http://drupal.org/security-team
[16] http://drupal.org/writing-secure-code
[17] http://drupal.org/security/secure-configuration
[18] https://twitter.com/drupalsecurity