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Internet Explorer 6 Window "location" Handling Vulnerability

Report ID: SA30857
Source: Secunia
Date of Discovery: 26.06.2008
Criticality: Moderate
Affects:
Microsoft Internet Explorer 6.x

Compromise From: From remote
Compromise Type: Security bypass
Cross site scripting

Summary

A vulnerability in Internet Explorer 6, which can be exploited by malicious people to conduct cross-domain scripting attacks.

Detailed Description

A vulnerability in Internet Explorer 6, which can be exploited by malicious people to conduct cross-domain scripting attacks.

The vulnerability is caused due to an input validation error when handling the "location" or "location.href" property of a window object. This can be exploited by a malicious website to e.g. open a trusted site and execute arbitrary script code in a user's browser session in context of the trusted site.

The vulnerability is confirmed in IE6 on Windows XP SP2. Other versions may also be affected.

Solution

Upgrade to Internet Explorer 7, which is unaffected.

Original Reference

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