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Outlook Express File Download Security Restriction Bypass
Secunia Advisory: SA8841
Release Date: 2003-05-26
Popularity: 11,486 views

Critical:
Less critical
Impact: Security Bypass
Where: From remote
Solution Status: Vendor Patch

Software:Microsoft Outlook Express 6

Secunia CVSS-2 Score: Available in Secunia business solutions

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Advisory Content (Page 1 of 3)[ 1 ] [ 2 ] [ 3 ]

Description:
A vulnerability has been identified in Outlook Express, which can be exploited to bypass the file download security restriction.

It is possible to download a file in Outlook Express even though it has been configured to run in Internet Explorer's "Restricted Zone" and file downloads have been disabled.

The vulnerability can be exploited by constructing a special email. When viewed, the email will fetch an URL, which invokes a certain media file (eg. ".asf"). This will open Windows Media Player to play the media file. Script features in this can then open Internet Explorer and fetch an URL referencing a malicious file thereby circumventing the file download restriction.

NOTE: This vulnerability does not allow automatic download and execution of a file but presents the user with a download dialog box.

Change Page:
[ 1 ] [ 2 ] [ 3 ]



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