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Vulnerability Note VU#138188

Microsoft Outlook Web Access for Exchange Server script injection vulnerability

Overview

A script injection vulnerability exists in Microsoft Exchange Server running Outlook Web Access.

I. Description

Microsoft Outlook Web Access (OWA) is a service of Exchange Server. OWA allows authorized users to read and send email, manage their calendar, and perform other functions on an Exchange server via the Web.

Outlook Web Access fails to correctly filter script contained in an email message under certain circumstances. This results in a vulnerability that could allow an attacker to supply script that would be executed by a user using OWA to read email.

II. Impact

A remote attacker with the ability to supply an email message containing specially crafted script may be able to execute the script in the security context of the victim user on the client system. Microsoft states that user interaction is required to exploit this vulnerability.

III. Solution

Apply a patch


Microsoft has published patches for this issue in Microsoft Security Bulletin MS06-029.

Workarounds

In addition to the patches, Microsoft has also published a number of workarounds for this issue in Microsoft Security Bulletin MS06-029. Users, particularly those who are unable to apply the patch, are encouraged to implement these workarounds.

Systems Affected

VendorStatusDate Updated
Microsoft CorporationVulnerable13-Jun-2006

References


http://www.microsoft.com/technet/security/bulletin/ms06-029.mspx

Credit

Thanks to Microsoft for reporting this vulnerability. Microsoft, in turn, credits Daniel Fabian of SEC Consult with reporting this issue to them.

This document was written by Chad R Dougherty.

Other Information

Date Public06/13/2006
Date First Published06/13/2006 04:41:12 PM
Date Last Updated06/13/2006
CERT Advisory 
CVE NameCVE-2006-1193
US-CERT Technical Alerts 
Metric15.19
Document Revision7

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