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Vulnerability Assessment Details

IIS XSS via 404 error

Vulnerability Assessment Summary
Tests for IIS XSS via 404 errors

Detailed Explanation for this Vulnerability Assessment
This IIS Server appears to vulnerable to one of the cross site scripting
attacks described in MS02-018. The default '404' file returned by IIS uses scripting to output a link to
top level domain part of the url requested. By crafting a particular URL it is possible to insert arbitrary script into the
page for execution.

The existence of this vulnerability also indicates that you are vulnerable to the other issues identified in MS02-018 (various remote buffer overflow and cross site scripting attacks...)

References:
http://www.microsoft.com/technet/security/bulletin/MS02-018.mspx
http://jscript.dk/adv/TL001/

Network Security Threat Level: Medium

Networks Security ID: 4476, 4483, 4486

Vulnerability Assessment Copyright: This script is Copyright (C) 2002 Matt Moore

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