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{ [waraxe-2004-SA#024] }

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{ [ XSS and full path disclosure in Network Query Tool 1.6 ] }

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Author: Janek Vind "waraxe"

Date: 23. April 2004

Location: Estonia, Tartu

Web: http://www.waraxe.us/index.php?modname=sa&id=24

Affected software description:

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This script takes a given hostname or IP address and attempts to

look up all sorts of information about that address. Basically

it does what network-tools.com does, without all the ads and ASP :)

COPYRIGHT shaun (at) shat (dot) net [email concealed]

Homepage: http://www.shat.net/php/nqt/

Vulnerabilities:

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A. Full path disclosure:

A1 - unchecked user submitted variable "portNum"

If we make http request like this:

http://localhost/nqt.php?target=foobar.com&queryType=all&portNum=foobar

... then we will see standard php error messages, revealing full path to script:

Warning: fsockopen() expects parameter 2 to be long, string given in D:\apache_wwwroot\nqt.php on line 305

Port foobar does not appear to be open.

Reason is, that script does not check validity of the portNum, which must be integer in range of 1..65535.

B. Cross-site scripting aka XSS

B1 - XSS through unsanitaized user submitted variable "portNum"

http://localhost/nqt.php?target=foobar.com&queryType=all&portNum=foobar[
xss code here]

Greetings:

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Greets to torufoorum members and to all bugtraq readers in Estonia! Tervitused!

Special greets to http://www.gamecheaters.us staff!

Contact:

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come2waraxe (at) yahoo (dot) com [email concealed]

Janek Vind "waraxe"

Homepage: http://www.waraxe.us/

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