SEC Consult has reported a vulnerability in Microsoft Exchange Server, which can be exploited by malicious people to conduct script insertion attacks.

The vulnerability is caused due to an error within the Microsoft Outlook Web Access (OWA) service when filtering e-mail messages that contain HTML tags with NULL bytes in the arguments. This can be exploited to insert arbitrary HTML and script code, which is executed in a user's browser session in context of an affected site when a malicious e-mail message is viewed.

Solution
Apply patches.
Further details available in Customer Area

Provided and/or discovered by
Daniel Fabian, SEC Consult.

Changelog
Further details available in Customer Area

Original Advisory
MS06-029 (KB912442):
http://www.microsoft.com/technet/security/Bulletin/MS06-029.mspx

SEC Consult:
http://www.sec-consult.com/fileadmin/Advisories/20060613-0_owa_xss_noexploit.txt
http://www.sec-consult.com/fileadmin/Advisories/20060613-0_owa_xss_w_details.txt

Other references
Further details available in Customer Area

Deep Links
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