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WordPress Crop-image Shell Upload

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WordPress Crop-image Shell Upload

Disclosed
02/19/2019
Created
04/22/2019

Description

This module exploits a path traversal and a local file inclusion vulnerability on WordPress versions 5.0.0 and <= 4.9.8. The crop-image function allows a user, with at least author privileges, to resize an image and perform a path traversal by changing the _wp_attached_file reference during the upload. The second part of the exploit will include this image in the current theme by changing the _wp_page_template attribute when creating a post. This exploit module only works for Unix-based systems currently.

Author(s)

  • RIPSTECH Technology
  • Wilfried Becard <wilfried.becard@synacktiv.com>

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/multi/http/wp_crop_rce
msf exploit(wp_crop_rce) > show targets
    ...targets...
msf exploit(wp_crop_rce) > set TARGET < target-id >
msf exploit(wp_crop_rce) > show options
    ...show and set options...
msf exploit(wp_crop_rce) > 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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