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             AUSCERT External Security Bulletin Redistribution

 A vulnerability has been identified in Views (Drupal third-party module)
                              18 October 2010


        AusCERT Security Bulletin Summary

Product:           Views (Drupal third-party module)
Publisher:         Drupal
Operating System:  Windows
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Denial of Service -- Remote with User Interaction
Resolution:        Patch/Upgrade

Original Bulletin: 

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SA-CONTRIB-2010-099 - Views Bulk Operations - Access Bypass
Security advisories for contributed projects  Drupal 6.x
Drupal Security Team - October 6, 2010 - 21:32

    * Advisory ID: DRUPAL-SA-CONTRIB-2010-099
    * Project: Views Bulk Operations (third-party module)
    * Version: 6.x
    * Date: 2010-October-6
    * Security risk: Not critical
    * Exploitable from: Remote
    * Vulnerability: Access bypass


Views Bulk Operations augments Views by allowing bulk operations to be executed 
on the nodes and users displayed by a view. It does so by showing a checkbox in 
front of each item, and adding a select box containing operations that can be 
applied on the selected items.

In some circumstances, a malicious user could use Views Bulk Operation to cause 
user 0 (the anonymous user) to be deleted. The effects of deleting user 0 vary 
depending on the system configuration and the use of other contributed modules, 
ranging from trivial errors to significant loss of functionality.

The risk is mitigated by the fact that a malicious user would need permission 
to a view that lets him/her manage users through Views Bulk Operations in 
order to exploit this vulnerability.

Versions affected

    * Views Bulk Operations for Drupal 6 prior to 6.x-1.10

Drupal core is not affected. If you do not use the contributed Views Bulk 
Operations module, there is nothing you need to do.


Install the latest version:

    * If you use the Views Bulk Operations module for Drupal 6.x upgrade to 
      Views Bulk Operations 6.x-1.10

See also the Views Bulk Operations project page.

Reported by

    * Joonas Kiminki (onaz)
    * Teemu Merikoski (tcmug)

Fixed by

    * Joonas Kiminki (onaz)
    * Teemu Merikoski (tcmug)


The Drupal security team can be reached at security at drupal.org or via the 
form at http://drupal.org/contact.

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