module

Movable Type 4.2x, 4.3x Web Upgrade Remote Code Execution

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Disclosed
2013-01-07
Created
2018-05-30

Description

This module can be used to execute a payload on MoveableType (MT) that
exposes a CGI script, mt-upgrade.cgi (usually at /mt/mt-upgrade.cgi),
that is used during installation and updating of the platform.
The vulnerability arises due to the following properties:
1. This script may be invoked remotely without requiring authentication
to any MT instance.
2. Through a crafted POST request, it is possible to invoke particular
database migration functions (i.e. functions that bring the existing
database up-to-date with an updated codebase) by name and with
particular parameters.
3. A particular migration function, core_drop_meta_for_table, allows
a class parameter to be set which is used directly in a perl eval
statement, allowing perl code injection.

Authors

Kacper Nowak
Nick Blundell
Gary O'Leary-Steele

Platform

Unix,Windows

Architectures

cmd

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