Portcullis Security Advisory 06-035

Portcullis Security Advisory 06-035

Vulnerable System:

Movable Type.

Vulnerability Title:

The create entry mechanism is vulnerable to JavaScript injection.

Vulnerability Discovery And Development:

Portcullis Security Testing Services

Credit for Discovery:

Tim Brown - Portcullis Computer Security Ltd.

Affected systems:

All known versions of Movable Type, this vulnerability was discovered for version 3.16.

Details:

During the creation of new blog entries, it is possible for an attacker to inject JavaScript into the title, category, body, extended body and excerpt form elements which will then be executed when a user visits a number of sections of the administration interface including the list entries mechanism, the preview entry mechanism as well as the blog index and the published entry.

Impact:

An attacker could use this to execute malicious code on visitors computers.

Exploit:

Exploit code is not required.

Copyright:

Copyright © Portcullis Computer Security Limited 2005, All rights reserved worldwide.
Permission is hereby granted for the electronic redistribution of this information. It is not to be edited or altered in any way without the express written consent of Portcullis Computer Security Limited.

Disclaimer:

The information herein contained may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (Portcullis Computer Security Limited) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.