TITLE:
Skype Cross-Zone Scripting Security Enhancement

SECUNIA ADVISORY ID:
SA28791

VERIFY ADVISORY:
http://secunia.com/advisories/28791/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
Skype for Windows 3.x
http://secunia.com/product/12919/
Skype for Windows 2.x
http://secunia.com/product/7268/
Skype for Windows 1.x
http://secunia.com/product/4250/

DESCRIPTION:
An update has been released for Skype, which implements security
enhancements to prevent compromise of users' systems.

Skype uses the Internet Explorer web control to render HTML from
certain websites (e.g. DailyMotion, METACAFE, and SkypeFind). As the
content is rendered in the "Local Machine" security zone, this allows
execution of arbitrary script code on a user's system via script
insertion vulnerabilities present in these websites.

Various vulnerabilities have been DISCOVERED in these sites, which
provide vectors when a user e.g. uses the Skype video gallery browser
section or finds a video UPLOADED to the DailyMotion gallery with a
specially crafted video title.

Successful exploitation requires that a displayed website is
vulnerable to script insertion.

The vulnerability is reported in the following Skype for Windows
VERSIONS:
- All versions including 3.5.*
- Version 3.6.*.244 and prior

SOLUTION:
Update or upgrade to version 3.6.*.248 or later, which now runs the
Internet Explorer web control in the "Internet" security zone.

http://www.skype.com/download/skype/windows/