module

WordPress Backup Migration Plugin PHP Filter Chain RCE

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Disclosed
Dec 11, 2023
Created
Jan 17, 2024

Description

This module exploits an unauth RCE in the WordPress plugin: Backup Migration ( exploitable through the Content-Dir header which is sent to the /wp-content/plugins/backup-backup/includes/backup-heart.php endpoint.

The exploit makes use of a neat technique called PHP Filter Chaining which allows an attacker to prepend
bytes to a string by continuously chaining character encoding conversions. This allows an attacker to prepend
a PHP payload to a string which gets evaluated by a require statement, which results in command execution.

Authors

Nex Team
Valentin Lobstein
jheysel-r7

Platform

Linux,PHP,Unix,Windows

Architectures

php, 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/wp_backup_migration_php_filter
    msf exploit(wp_backup_migration_php_filter) > show targets
        ...targets...
    msf exploit(wp_backup_migration_php_filter) > set TARGET < target-id >
    msf exploit(wp_backup_migration_php_filter) > show options
        ...show and set options...
    msf exploit(wp_backup_migration_php_filter) > exploit
Title
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