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Microsoft Internet Explorer "window()" Arbitrary Code Execution Vulnerability
Secunia Advisory: SA15546
Release Date: 2005-05-31
Last Update: 2005-12-13
Popularity: 140,001 views

Critical:
Extremely critical
Impact: System access
Where: From remote
Solution Status: Vendor Patch

Software:Microsoft Internet Explorer 5.5
Microsoft Internet Explorer 6.x

Secunia CVSS-2 Score: Available in Secunia business solutions

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

Description:
Benjamin Tobias Franz has discovered a vulnerability in Internet Explorer, which can be exploited by malicious people to compromise a user's system.

The vulnerability is caused due to certain objects not being initialized correctly when the "window()" function is used in conjunction with the "<body onload>" event. This can be exploited to execute arbitrary code on a vulnerable browser via some specially crafted JavaScript code called directly when a site has been loaded.

Example:
<body onload="window();">

Successful exploitation requires that the user is e.g. tricked into visiting a malicious website.

The vulnerability has been confirmed on a fully patched system with Internet Explorer 6.0 and Microsoft Windows XP SP2, and Internet Explorer 6.0 and Microsoft Windows 2000 SP4.

Note: A PoC exploit has been released for this vulnerability.

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



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