Two vulnerabilities have been identified in Microsoft Exchange Server, which could be exploited by attackers to disclose or manipulate email data.
The first issue is caused by an error in Outlook Web Access (OWA) for Exchange Server that does not sufficiently validate email fields when opening mail from within an individual client's OWA session, which could allow attackers to execute malicious script in the security context of a user's OWA session via a specially crafted email, and read, send, and delete emails as the logged-on user.
The second vulnerability is caused by an error in Outlook Web Access (OWA) for Exchange Server that does not sufficiently validate HTML when rendering e-mail from within an individual OWA client session, which could be exploited by attackers to execute malicious script by tricking a user into opening a specially crafted email.
Credits
Vulnerabilities reported by Michael Jordan (Context Information Security).
ChangeLog
2008-07-08 : Initial release
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