module

vBulletin 5.x /ajax/render/widget_tabbedcontainer_tab_panel PHP remote code execution.

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Disclosed
2020-08-09
Created
2020-08-13

Description

This module exploits a logic bug within the template rendering code in vBulletin 5.x.
The module uses the vBulletin template rendering functionality to render the
'widget_tabbedcontainer_tab_panel' template while also providing the 'widget_php' argument.
This causes the former template to load the latter bypassing filters originally put in place
to address 'CVE-2019-16759'. This also allows the exploit to reach an eval call with user input
allowing the module to achieve PHP remote code execution on the target. This module has been
tested successfully on vBulletin version 5.6.2 on Ubuntu Linux.

Author

Zenofex zenofex@exploitee.rs

Platform

PHP,Unix,Windows

Architectures

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