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TITLE:
Microsoft Outlook Web Access Script Insertion Vulnerabilities

SECUNIA ADVISORY ID:
SA30964

VERIFY ADVISORY:
http://secunia.com/advisories/30964/

CRITICAL:
Moderately critical

IMPACT:
Cross Site Scripting

WHERE:
>From remote

SOFTWARE:
Microsoft Exchange Server 2007
http://secunia.com/product/13797/
Microsoft Exchange Server 2003
http://secunia.com/product/1828/

DESCRIPTION:
Two vulnerabilities have been reported in Microsoft Outlook Web
Access for Exchange Server, which can be exploited by malicious
people to conduct script insertion attacks.

1) Insufficient validation of certain e-mail fields can be exploited
to execute arbitrary HTML and script code in a user's browser session
in context of a vulnerable site.

2) Insufficient validation of HTML in e-mail messages can be
exploited to execute arbitrary HTML and script code in a user's
browser session in context of a vulnerable site.

Successful exploitation of the vulnerabilities requires that a user
opens a specially crafted e-mail.

NOTE: The vulnerabilities do not affect OWA Premium.

SOLUTION:
Apply patches.

Microsoft Exchange Server 2003 SP2:
http://www.microsoft.com/downloads/details.aspx?familyid=E099C1D1-5AF6-4D6C-B735-9599412B3131

Microsoft Exchange Server 2007:
http://www.microsoft.com/downloads/details.aspx?familyid=086A2A13-A1DE-4B1D-BD12-B148BFD2DAFA

Microsoft Exchange Server 2007 SP1:
http://www.microsoft.com/downloads/details.aspx?familyid=63E7F26C-92A8-4264-882D-F96B348C96AB

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Michael Jordan, Context Information Security.

ORIGINAL ADVISORY:
MS08-039 (KB953747):
http://www.microsoft.com/technet/security/Bulletin/MS08-039.mspx

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About:
This Advisory was delivered by Secunia as a free service to help
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Please Note:
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Secunia NEVER sends attached files with advisories.
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