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Arrow  Topic :

Drupal 4.6.10 / 4.7.4 fixes multiple XSS issues


Arrow  SecurityAlert : 1766
Arrow  CVE : CVE-2006-5475
Arrow  SecurityRisk : Low  Security Risk Low  (About)
Arrow  Remote Exploit : Yes
Arrow  Local Exploit : No
Arrow  Exploit Given : No
Arrow  Credit : Uwe Hermann (uwe hermann-uwe de)
Arrow  Published : 25.10.2006

Arrow  Affected Software : Drupal 4.6.x versions before Drupal 4.6.10
Drupal 4.7.x versions before Drupal 4.7.4



Arrow  Advisory Text :  

------------------------------------------------------------------------
----
Drupal security advisory
DRUPAL-SA-2006-024
------------------------------------------------------------------------
----
Project: Drupal core
Date: 2006-Oct-18
Security risk: Moderately critical
Exploitable from: Remote
Vulnerability: Cross site scripting
------------------------------------------------------------------------
----

Description
-----------
Multiple XSS (cross site scripting) vulnerabilities have been discovered.

A bug in input validation and lack of output validation allows HTML and
script
insertion on several pages.

Drupal's XML parser passes unescaped data to watchdog under certain
circumstances. A malicious user may execute an XSS attack via a specially
crafted RSS feed. This vulnerability exists on systems that do not use
PHP's
mb_string extension (to check if mb_string is being used, navigate to
admin/settings and look under "String handling"). Disabling the aggregator

module provides an immediate workaround.

The aggregator module, profile module, and forum module do not properly
escape
output of certain fields.

Note: XSS attacks may lead to administrator access if certain conditions
are
met.


Versions affected
-----------------
- Drupal 4.6.x versions before Drupal 4.6.10
- Drupal 4.7.x versions before Drupal 4.7.4

Solution
--------
- If you are running Drupal 4.6.x then upgrade to Drupal 4.6.10.
http://ftp.osuosl.org/pub/drupal/files/projects/drupal-4.6.10.tar.gz
- If you are running Drupal 4.7.x then upgrade to Drupal 4.7.4.
http://ftp.osuosl.org/pub/drupal/files/projects/drupal-4.7.4.tar.gz

- To patch Drupal 4.6.9 use
http://drupal.org/files/sa-2006-024/4.6.9.patch.
- To patch Drupal 4.7.3 use
http://drupal.org/files/sa-2006-024/4.7.3.patch.

Please note that the patches only contain changes related to this advisory,
and
do not fix bugs that were solved in 4.6.10 or 4.7.4.

Reported by
-----------
- The XML parser vulnerability was reported by Erdem Köse.
- The forum module vulnerability was reported by Jim Phlew.
- The other vulnerabilities were found by members of the Drupal security
team.

Contact
-------
The security contact for Drupal can be reached at security at drupal.org or

using the form at http://drupal.org/contact.

// Uwe Hermann, on behalf of the Drupal Security Team.
--
Uwe Hermann
http://www.hermann-uwe.de
http://www.it-services-uh.de | http://www.crazy-hacks.org
http://www.holsham-traders.de | http://www.unmaintained-free-software.org
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