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Vulnerability Note VU#558648

Microsoft Windows Vista Feed Headlines Gadget vulnerability

Overview

The Windows Vista Feed Headlines gadget contains a vulnerability that may allow and attacker to execute code.

I. Description

From Microsoft Security Bulletin MS07-048:

    Gadgets are mini-applications designed to provide the user with information or utilities. Windows Vista treats gadgets similar to the way Windows Vista treats other executable code. Gadgets are written using HTML and script, but this HTML is not located on an arbitrary remote server as web pages are. HTML content in the Gadget is downloaded first as part of a package of resources and configuration files and then executed from the local computer. This download process is similar to applications (.exe files) downloaded from the Internet.


The Windows Vista Feed headlines gadget contains a vulnerability that occurs because the gadget does not properly parse HTML attributes. To exploit this vulnerability, an attacker would need to convince a user to subscribe to a malicious RSS feed using the Vista Feed headlines gadget.

II. Impact

A remote, unauthenticated attacker may be able to execute arbitrary code, or create a denial-of-service condition.

III. Solution

Update

Microsoft has released update MS07-048 to address this issue.

Disable the Feed headlines gadget

Until updates can be applied, disabling the Feed headlines gadget will mitigate this vulnerability. To disable the Feed headlines gadget, see the workarounds section of Microsoft Security Bulletin MS07-048.

Systems Affected

VendorStatusDate NotifiedDate Updated
Microsoft CorporationVulnerable15-Aug-2007

References


http://www.microsoft.com/technet/security/bulletin/ms07-048.mspx
http://www.microsoft.com/windows/products/windowsvista/features/details/sidebargadgets.mspx
http://secunia.com/advisories/26439/
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=575

Credit

Thanks to Microsoft for information that was used in this report. Microsoft credits Aviv Raff for reporting this vulnerability.

This document was written by Ryan Giobbi.

Other Information

Date Public:2007-08-14
Date First Published:2007-08-15
Date Last Updated:2007-08-15
CERT Advisory: 
CVE-ID(s):CVE-2007-3033
NVD-ID(s):CVE-2007-3033
US-CERT Technical Alerts: 
Metric:3.85
Document Revision:11

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