module

Ruby on Rails Known Secret Session Cookie Remote Code Execution

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Disclosed
2013-04-11
Created
2018-05-30

Description

This module implements Remote Command Execution on Ruby on Rails applications.
Prerequisite is knowledge of the "secret_token" (Rails 2/3) or "secret_key_base"
(Rails 4). The values for those can be usually found in the file
"RAILS_ROOT/config/initializers/secret_token.rb". The module achieves RCE by
deserialization of a crafted Ruby Object.

Author

joernchen of Phenoelit joernchen@phenoelit.de

Platform

Ruby

Architectures

ruby

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