[TYPO3-announce] TYPO3 Security Bulletin TYPO3-20080515-2: Multiple vulnerabilities in extension Frontend Filemanager (air_filemanager)

[Henning Pingel]

Dear users of TYPO3,

It has been discovered that the extension Frontend Filemanager
(air_filemanager) is susceptible to Cross Site Scripting (XSS) attacks
and allows Remote Code Execution.

==== Component Type ====
Third party extensions. These extensions are not part of the TYPO3
default installation.

==== Affected Versions ====
Version 0.6.0 and below

==== Vulnerability Type ====
Cross Site Scripting, Remote Code Execution

==== Severity ====
HIGH

==== Problem Description ====
Failing to filter user input the extension is susceptible to Cross Site
Scripting (XSS) making it possible to execute arbitrary JavaScript.
Execution of arbitrary PHP script code is also possible due to
insufficient file filtering.

==== Solution ====
An updated version 0.6.1 is available from the TYPO3 extension manager
and at
<http://typo3.org/extensions/repository/view/air_filemanager/0.6.1/>.


==== General advice ====
Follow the recommendations that are given in the TYPO3 Security Cookbook
[1]. If you haven't subscribed to the typo3-announce mailing list [2]
yet, please do so to receive future Security Bulletins via E-mail. All
TYPO3 Security Bulletins are available on the Security Team pages on
typo3.org [3].

==== Credits ====
Credits go to Security Team member Marcus Krause, who discovered the
issue. Furthermore the TYPO3 Security Team wishes to thank the extension
author Thomas Waggershauser. After being informed by the TYPO3 Security
Team about the presence of security issues, he has fixed the issues quickly.

Regards,
Henning Pingel
henning at typo3.org

[1]
<http://typo3.org/fileadmin/security-team/typo3_security_cookbook_v-0.5.pdf>
[2] <http://lists.netfielders.de/cgi-bin/mailman/listinfo/typo3-announce>
[3] <http://typo3.org/teams/security/security-bulletins/>