Vulnerability Note VU#435444

Microsoft Outlook Web Access (OWA) contains cross-site scripting vulnerability in the "Compose New Message" form

Overview

There is a cross-site scripting vulnerability in Microsoft Outlook Web Access.

I. Description

The "Compose New Message" form of the Outlook Web Access (OWA) component of Microsoft Exchange 5.5 contains a cross-site scripting vulnerability. For more information about cross-site scripting vulnerabilities, see

http://www.cert.org/advisories/CA-2000-02.html
http://www.cert.org/archive/pdf/cross_site_scripting.pdf

For more information on this particular cross-site scripting vulnerability, see Microsoft Security Bulletin MS03-047.

II. Impact

If an attacker can trick or entice a user to follow a link, the attacker can execute script as the victim in the context of the zone in which the Outlook server resides. For example, this could permit the attacker to gain access to messages stored on the server.

III. Solution

Apply a patch as described in Microsoft Security Bulletin MS03-047.

Systems Affected

Vendor	Status	Date Notified	Date Updated
Microsoft Corporation	Vulnerable	15-Oct-2003

References

http://www.microsoft.com/technet/security/bulletin/MS03-047.asp
http://support.microsoft.com/default.aspx?scid=kb;en-us;828489
http://www.microsoft.com/technet/treeview/default.asp?url=/technet/security/news/crssite.asp
http://search.cert.org/query.html?col=certadv&col=vulnotes&qt=cross-site+scripting

Credit

Our thanks to Microsoft for the information contained in their bulletin. Microsoft has credited Ory Segal of Sanctum Inc. for discovering the vulnerability.

This document was written by Shawn Hernan based on information in Microsoft Security Bulletin MS03-047.

Other Information

Date Public:	2003-10-15
Date First Published:	2003-10-15
Date Last Updated:	2003-10-16
CERT Advisory:
CVE-ID(s):	CAN-2003-0712
NVD-ID(s):	CAN-2003-0712
US-CERT Technical Alerts:
Metric:	14.18
Document Revision:	5

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