metasploit-gs/lib/msf/core/post/linux/priv.rb

# -*- coding: binary -*-
require 'msf/core/post/common'

module Msf
class Post
module Linux
module Priv
  include ::Msf::Post::Common

  #
  # Returns true if running as root, false if not.
  #
  def is_root?
    root_priv = false
    user_id = cmd_exec("id -u")
    clean_user_id = user_id.to_s.gsub(/[^\d]/,"")
    unless clean_user_id.empty?
      if clean_user_id =~ /^0$/
        root_priv = true
      elsif clean_user_id =~ /^\d*$/
        root_priv = false
      end
    else
      raise "Could not determine UID: #{user_id.inspect}"
    end
    return root_priv
  end

end # Priv
end # Linux
end # Post
end # Msf