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WordPress WP EasyCart Unrestricted File Upload

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WordPress WP EasyCart Unrestricted File Upload

Disclosed
01/08/2015
Created
05/30/2018

Description

WordPress Shopping Cart (WP EasyCart) Plugin for WordPress contains a flaw that allows a remote attacker to execute arbitrary PHP code. This flaw exists because the /inc/amfphp/administration/banneruploaderscript.php script does not properly verify or sanitize user-uploaded files. By uploading a .php file, the remote system will place the file in a user-accessible path. Making a direct request to the uploaded file will allow the attacker to execute the script with the privileges of the web server. In versions <= 3.0.8 authentication can be done by using the WordPress credentials of a user with any role. In later versions, a valid EasyCart admin password will be required that is in use by any admin user. A default installation of EasyCart will setup a user called "demouser" with a preset password of "demouser".

Author(s)

  • Kacper Szurek
  • rastating

Platform

PHP

Architectures

php

Development

References

Module Options

To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':

msf > use exploit/unix/webapp/wp_easycart_unrestricted_file_upload
msf exploit(wp_easycart_unrestricted_file_upload) > show targets
    ...targets...
msf exploit(wp_easycart_unrestricted_file_upload) > set TARGET < target-id >
msf exploit(wp_easycart_unrestricted_file_upload) > show options
    ...show and set options...
msf exploit(wp_easycart_unrestricted_file_upload) > exploit

Time is precious, so I don’t want to do something manually that I can automate. Leveraging the Metasploit Framework when automating any task keeps us from having to re-create the wheel as we can use the existing libraries and focus our efforts where it matters.

– Jim O’Gorman | President, Offensive Security

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