[Security-news] SA-CONTRIB-2015-052 - RESTful Web Services - Access Bypass

[security-news at drupal.org]

View online: https://www.drupal.org/node/2428863

   * Advisory ID: DRUPAL-SA-CONTRIB-2015-052
   * Project: RESTful Web Services [1]     (third-party module)
   * Version: 7.x
   * Date: 2015-February-18
   * Security risk: 12/25 ( Moderately Critical)
     AC:Basic/A:None/CI:Some/II:None/E:Theoretical/TD:Default [2]
   * Vulnerability: Access bypass

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

This module enables you to expose Drupal entities as RESTful web services. It
provides a machine-readable interface to exchange resources in JSON, XML and
RDF.

The RESTWS Basic Auth submodule doesn't sufficiently disable page caching for
authenticated requests thereby leaking potentially confidential data to
unauthorized users.

This vulnerability is mitigated by the fact that the RESTWS Basic Auth
submodule must be enabled, page caching must be enabled and  permissions for
a resource containing sensitive data must be enabled (for example the User
resource).


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

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

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

   * RESTWS 7.x-1.x versions prior to 7.x-1.5.
   * RESTWS 7.x-2.x versions prior to 7.x-2.3.

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

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

Install the latest version:

   * If you use the RESTWS module for Drupal 7.x, upgrade to RESTWS 7.x-1.5 
[5]
     or RESTWS 7.x-2.3 [6]

Also see the RESTful Web Services [7] project page.

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

   * Jason Little [8]

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

   * Klaus Purer [9] the module maintainer and member of the Drupal Security
     Team

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

   * Klaus Purer [10] 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 [11].

Learn more about the Drupal Security team and their policies [12], writing
secure code for Drupal [13], and  securing your site [14].

Follow the Drupal Security Team on Twitter at
https://twitter.com/drupalsecurity [15]


[1] https://www.drupal.org/project/restws
[2] https://www.drupal.org/security-team/risk-levels
[3] http://cve.mitre.org/
[4] https://www.drupal.org/project/restws
[5] https://www.drupal.org/node/2428857
[6] https://www.drupal.org/node/2428855
[7] https://www.drupal.org/project/restws
[8] https://www.drupal.org/user/143477
[9] https://www.drupal.org/u/klausi
[10] https://www.drupal.org/u/klausi
[11] https://www.drupal.org/contact
[12] https://www.drupal.org/security-team
[13] https://www.drupal.org/writing-secure-code
[14] https://www.drupal.org/security/secure-configuration
[15] https://twitter.com/drupalsecurity