search menu icon-carat-right cmu-wordmark

CERT Coordination Center

Microsoft Outlook Web Access for Exchange Server script injection vulnerability

Vulnerability Note VU#138188

Original Release Date: 2006-06-13 | Last Revised: 2006-06-13


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


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.


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.


Apply a patch

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


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.

Vendor Information


Microsoft Corporation Affected

Updated:  June 13, 2006



Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.


Microsoft published Microsoft Security Bulletin MS06-029 in response to this issue. Users are encouraged to review this bulletin and apply the patches it refers to.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

CVSS Metrics

Group Score Vector



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

CVE IDs: CVE-2006-1193
Severity Metric: 15.19
Date Public: 2006-06-13
Date First Published: 2006-06-13
Date Last Updated: 2006-06-13 20:42 UTC
Document Revision: 10

Sponsored by CISA.