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Ruby On Rails DoubleTap Development Mode secret_key_base Vulnerability

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Ruby On Rails DoubleTap Development Mode secret_key_base Vulnerability

Disclosed
03/13/2019
Created
05/01/2019

Description

This module exploits a vulnerability in Ruby on Rails. In development mode, a Rails application would use its name as the secret_key_base, and can be easily extracted by visiting an invalid resource for a path. As a result, this allows a remote user to create and deliver a signed serialized payload, load it by the application, and gain remote code execution.

Author(s)

  • ooooooo_q
  • mpgn
  • sinn3r <sinn3r@metasploit.com>

Platform

Linux

Development

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

Time is precious, so I don’t want to do something manually that I can automate. Leveraging the Metasploit Framework when automating any task keeps us from having to re-create the wheel as we can use the existing libraries and focus our efforts where it matters.

– Jim O’Gorman | President, Offensive Security

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