module

CMS Made Simple (CMSMS) Showtime2 File Upload RCE

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Disclosed
2019-03-11
Created
2019-04-22

Description

This module exploits a File Upload vulnerability that lead in a RCE in
Showtime2 module ( user with "Use Showtime2" privilege could exploit the vulnerability.

The vulnerability exists in the Showtime2 module, where the class
"class.showtime2_image.php" does not ensure that a watermark file
has a standard image file extension (GIF, JPG, JPEG, or PNG).

Tested on Showtime2 3.6.2, 3.6.1, 3.6.0, 3.5.4, 3.5.3, 3.5.2, 3.5.1, 3.5.0,
3.4.5, 3.4.3, 3.4.2 on CMS Made Simple (CMSMS) 2.2.9.1

Authors

Daniele Scanu
Fabio Cogno

Platform

PHP

Architectures

php

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/cmsms_showtime2_rce
    msf exploit(cmsms_showtime2_rce) > show targets
        ...targets...
    msf exploit(cmsms_showtime2_rce) > set TARGET < target-id >
    msf exploit(cmsms_showtime2_rce) > show options
        ...show and set options...
    msf exploit(cmsms_showtime2_rce) > exploit
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