Otkrivene su tri sigurnosna propusta pri radu programskog paketa Drupal koje zlonamjernom korisniku omogućuju izvođenje napada umetanja zlonamjernog koda i ostvarivanje neovlaštenog pristupa osjetljivim podacima.

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Fedora Update Notification
FEDORA-2011-7559
2011-05-26 21:13:58
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Name        : drupal6
Product     : Fedora 15
Version     : 6.22
Release     : 1.fc15
URL         : http://www.drupal.org
Summary     : An open-source content-management platform
Description :
Equipped with a powerful blend of features, Drupal is a Content Management
System written in PHP that can support a variety of websites ranging from
personal weblogs to large community-driven websites.  Drupal is highly
configurable, skinnable, and secure.

--------------------------------------------------------------------------------
Update Information:

  * Advisory ID: DRUPAL-SA-CORE-2011-001
  * Project: Drupal core [1]
  * Version: 6.x, 7.x
  * Date: 2011-May-25
  * Security risk: Critical [2]
  * Exploitable from: Remote
  * Vulnerability: Access bypass, Cross Site Scripting

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

Multiple vulnerabilities and weaknesses were discovered in Drupal.

.... Reflected cross site scripting vulnerability in error handler

A reflected cross site scripting vulnerability was discovered in Drupal's
error handler. Drupal displays PHP errors in the messages area, and a
specially crafted URL can cause malicious scripts to be injected into the
message. The issue can be mitigated by disabling on-screen error display at
admin/settings/error-reporting. This is the recommended setting for
production sites.

This issue affects Drupal 6.x only.

.... Cross site scripting vulnerability in Color module

When using re-colorable themes, color inputs are not sanitized. Malicious
color values can be used to insert arbitrary CSS and script code. Successful
exploitation requires the "Administer themes" permission.

This issue affects Drupal 6.x and 7.x.

.... Access bypass in File module

When using private files in combination with a node access module, the File
module allows unrestricted access to private files.

This issue affects Drupal 7.x only.

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

  * Drupal 7.x before version 7.1.
  * Drupal 6.x before version 6.21.

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

Install the latest version:

  * If you are running Drupal 7.x then upgrade to Drupal 7.1 [3] or 7.2 [4].
  * If you are running Drupal 6.x then upgrade to Drupal 6.21 [5] or 6.22. [6]

The Security Team has released both a pure security update without other bug
fixes and a security update combined with other bug fixes and improvements.
You can choose to either only include the security update for an immediate
fix (which might require less quality assurance and testing) or more fixes
and improvements alongside the security fixes by choosing between Drupal 7.1
[7] and Drupal 7.2 [8] or Drupal 6.21 [9] and Drupal 6.22 [10].

See the release announcement [11] for more information.

See also the Drupal core [12] project page.

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

  * The reflected cross site scripting vulnerability was reported by Heine
    Deelstra [13] (*).
  * The Color module cross site scripting vulnerability was reported by Kasper
    Lindgaard, Secunia Research.
  * The File access bypass was reported by Hubert Lecorche, and Peter Bex
    [14].

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

  * The reflected cross site scripting vulnerability was fixed by Alan
    Smithee.
  * The Color module cross site scripting vulnerability was fixed by StÄ