Fedora 10 : drupal-6.12-1.fc10 (2009-5002)
Medium Nessus Plugin ID 38798
SynopsisThe remote Fedora host is missing a security update.
DescriptionFixes SA-CORE-2009-006 ( http://drupal.org/node/461886 ). Remember to log in to your site as the admin user before upgrading this package.
After upgrading the package, browse to http://host/drupal/update.php to run the upgrade script. 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 enables attackers to execute cross site scripting attacks with UTF-7. SA- CORE-2009-005 - Drupal core - Cross site scripting contained an incomplete fix for the issue. HTML exports of books are still vulnerable, which means that anyone with edit permissions for pages in outlines is able to insert arbitrary HTML and script code in these exports. Additionally, the taxonomy module allows users with the 'administer taxonomy' permission to inject arbitrary HTML and script code in the help text of any vocabulary. Wikipedia has more information about cross site scripting (XSS).
Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
SolutionUpdate the affected drupal package.