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AUSCERT External Security Bulletin Redistribution
ESB-2009.0466 -- [Win][UNIX/Linux]
Drupal third-party modules: Multiple Vulnerabilities
11 June 2009
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AusCERT Security Bulletin Summary
---------------------------------
Product: Printer, e-mail and PDF versions (third-party module)
Feed Block (third-party module)
Publisher: Drupal
Operating System: UNIX variants (UNIX, Linux, OSX)
Windows
Impact: Increased Privileges
Cross-site Scripting
Access: Remote/Unauthenticated
CVE Names: CVE-2009-1738
Ref: ESB-2009.0416
Original Bulletin: http://drupal.org/node/461706
http://drupal.org/node/461674
Comment: This bulletin references two (2) Drupal Advisories.
Revision History: June 11 2009: Document number changed from
ESB-2009.0697 to ESB-2009.0466
May 21 2009: Added CVE Name
May 15 2009: Initial Release
- --------------------------BEGIN INCLUDED TEXT--------------------
* Advisory ID: DRUPAL-SA-CONTRIB-2009-027
* Project: Printer, e-mail and PDF versions (third-party module)
* Versions: 5.x, 6.x
* Date: 2009-May-13
* Security risk: Moderately critical
* Exploitable from: Remote
* Vulnerability: Multiple vulnerabilities
- -------- DESCRIPTION
- ---------------------------------------------------------
When outputting user-supplied data Drupal strips potentially dangerous HTML
attributes and tags or escapes characters which have a special meaning in
HTML. This output filtering secures the site against cross site scripting
attacks via user input. Certain byte sequences that are valid in the UTF-8
specification are potentially dangerous when interpreted as UTF-7. Internet
Explorer 6 and 7 may decode these characters as UTF-7 if they appear before
the <meta http-equiv="Content-Type" /> tag that specifies the page content as
UTF-8, despite the fact that Drupal also sends a real HTTP header specifying
the content as UTF-8. This behaviour enables malicious users to insert and
execute Javascript in the context of the website if site visitors are allowed
to post content. Note, this vulnerability is identical to that fixed for
Drupal core by DRUPAL-SA-CORE-2009-005 [1] Such a cross site scripting [2]
(XSS) attack may lead to a malicious user gaining full administrative access.
- -------- VERSIONS AFFECTED
- ---------------------------------------------------
* Versions of "Printer, e-mail and PDF versions" for Drupal 5.x prior to
5.x-4.7
* Versions of "Printer, e-mail and PDF versions" for Drupal 6.x prior to
6.x-1.7
Drupal core is not affected. If you do not use the contributed "Printer,
e-mail and PDF versions" module, there is nothing you need to do.
- -------- SOLUTION
- ------------------------------------------------------------
Install the latest version:
* If you use "Printer, e-mail and PDF versions" for Drupal 5.x upgrade to
Printer, e-mail and PDF versions 5.x-4.7 [3]
* If you use "Printer, e-mail and PDF versions" for Drupal 6.x upgrade to
Printer, e-mail and PDF versions 6.x-1.7 [4]
- -------- REPORTED BY
- ---------------------------------------------------------
Daniel F. Kudwien [5]
- -------- FIXED BY
- ------------------------------------------------------------
João Ventura [6]
- -------- CONTACT
- -------------------------------------------------------------
The security contact for Drupal can be reached at security at drupal.org or
via the form at http://drupal.org/contact.
[1] http://drupal.org/node/449078
[2] http://en.wikipedia.org/wiki/Cross-site_scripting
[3] http://drupal.org/node/461634
[4] http://drupal.org/node/461642
[5] http://drupal.org/user/54136
[6] http://drupal.org/user/122464
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* Advisory ID: DRUPAL-SA-CONTRIB-2009-028
* Project: Feed Block (third-party module)
* Version: 6.x
* Date: 2009-May-13
* Security risk: Less critical
* Exploitable from: Remote
* Vulnerability: Cross Site Scripting
- -------- DESCRIPTION
- ---------------------------------------------------------
The Feed Block module creates a block with one external(syndicated) article
for each feed source from selected feed category. Feed block doesn't properly
escapes aggregator items allowing users with administer news feeds permission
to inject arbitrary code into the site. Such a cross site scripting (XSS)
attack may lead to a malicious user gaining full administrative access.
- -------- VERSIONS AFFECTED
- ---------------------------------------------------
* Feed Block 6.x-1.x prior to 6.x-1.1
Drupal core is not affected. If you do not use the contributed Feed Block
module, there is nothing you need to do.
- -------- SOLUTION
- ------------------------------------------------------------
Upgrade to the latest version:
* If you use Feed Block 6.x-1.x upgrade to Feed Block 6.x-1.1 [1]
See also the Feed Block project page [2].
- -------- REPORTED BY
- ---------------------------------------------------------
Jakub Suchy [3] of the Drupal Security Team [4].
- -------- FIXED BY
- ------------------------------------------------------------
Ivan Jaros [5].
- -------- CONTACT
- -------------------------------------------------------------
The security contact for Drupal can be reached at security at drupal.org or
via the form at http://drupal.org/contact.
[1] http://drupal.org/node/453098
[2] http://drupal.org/project/feed_block
[3] http://drupal.org/user/31977
[4] http://drupal.org/security-team
[5] http://drupal.org/user/135190
- --------------------------END INCLUDED TEXT--------------------
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