A vulnerability has been reported in Internet Explorer, which can be exploited by malicious people to gain knowledge of sensitive information.

The vulnerability is caused due to an error in the MHTML protocol handler when interpreting MHTML URI redirections. This can be exploited to bypass Internet Explorer domain restrictions when returning MHTML content via a specially crafted web page.

Successful exploitation allows reading content from another Internet Explorer domain or the local system

NOTE: The vulnerability is reported in Outlook Express and Windows Mail by Microsoft as the functionality is provided by these programs. However, the vulnerability is exploitable via Internet Explorer.

Solution
Apply patches.
Further details available to Secunia VIM customers

Provided and/or discovered by
Jorge Luis Alvarez Medina, Core Security Technologies.

Changelog
Further details available to Secunia VIM customers

Original Advisory
MS08-048 (KB951066):
http://www.microsoft.com/technet/security/Bulletin/MS08-048.mspx

Core Security Technologies:
http://www.coresecurity.com/content/internet-explorer-zone-elevation

Alternate/detailed remediation
Further details available in Customer Area

Deep Links
Links available to Secunia VIM customers