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Generating Module Documentation

Thao Doan edited this page Jun 27, 2016 · 12 revisions

You can now generate documentation for modules on the fly using the info -d command.

Module documentation allows you to see the help for a particular module from a web page, instead of from the command line.

The help page includes:

  • The PR history related to a particular module, if you have a GitHub access token set up.
  • The basic usage instructions for a module.
  • The advanced usage instructions for a module, if it's available.

###How to use it After you load a module, you can type info -d to generate a help page that provides basic usage information and displays the PR history for the module.

msf> use auxiliary/scanner/smb/smb_login
msf (smb_login)> info -d

Additionally, if it's available, the help page will also include a KB that contains advanced usage information, such as vulnerable target details, caveats, and sample usage. The content in the KB is contained in a markdown file in the metasploit-framework/documentation/modules directory. Its purpose is to provide supplemental information that is outside of the scope of general documentation.

###Add an access token to see PR history

In order for you to be able to view the PR history for a module, you'll need add your GitHub access token to the environment variable GITHUB_OAUTH_TOKEN="" in .bash_profile.

To generate a GitHub access token, check out this page. The token will need to have a scope for repos.

###How you can write KBs Generally, the person who creates the module will write the initial KB for it, but anyone can write or contribute to it.

Before you write a KB, you should take a look at the sample template, module_doc_template.md, which is located in metasploit-framework/documentation/modules/markdown_doc, or take a look at any of the KBs that are already available.

To write a KB, you'll need to:

  1. Create an markdown (.md) file.
  2. Write the content.
  3. Save the file and name it after the module name. For example, the filename for ms08-067 is called ms08_067_netapi.md.
  4. Place it in the metasploit-framework/documentation/modules directory.

###Where to put the KB files

If you go to metasploit-framework/documentation/modules, you'll see that there are documentation directories for each module type: auxiliary, exploit, payload, and post. To figure out where you need to put the file, you'll need to look at the module name.

  1. Start msfconsole.
  2. Type use <module name>.
  3. Type info.
  4. When the module name appears, look at the Module field. You'll see a file path for the module. That's the path where the KB needs to be added.

For example:

msf> use auxiliary/scanner/smb/smb_login
msf (smb_login)> info

Name: SMB Login Check Scanner
Module: auxiliary/scanner/smb/smb_login
....

If you were creating a KB for the smb login scanner, you'd add it to metasploit-framework/documentation/modules/auxiliary/smb.

###Sections you should include in the KB

These are just suggestions, but it'd be nice if the KB had these sections:

  • Vulnerable Applications - Tells users what targets are vulnerable to the module and provides instructions on how to access vulnerable targets for testing.
  • Verification Steps - Tells users how to use the module and what the expected results are from running the module.
  • Options - Provides descriptions of all the options that can be run with the module. Additionally, clearly identify the options that are required.
  • Scenarios - Provides sample usage and describes caveats that the user may need to be aware of when running the module.

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