Microsoft SQL Server Generic Query

##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

class MetasploitModule < Msf::Auxiliary
  include Msf::Exploit::Remote::MSSQL
  include Msf::OptionalSession::MSSQL

  def initialize(info = {})
    super(update_info(info,
      'Name'           => 'Microsoft SQL Server Generic Query',
      'Description'    => %q{
          This module will allow for simple SQL statements to be executed against a
          MSSQL/MSDE instance given the appropriate credentials.
      },
      'Author'         => [ 'tebo <tebo[at]attackresearch.com>' ],
      'License'        => MSF_LICENSE,
      'References'     =>
        [
          [ 'URL', 'http://www.attackresearch.com' ],
          [ 'URL', 'http://msdn.microsoft.com/en-us/library/cc448435(PROT.10).aspx'],
        ]
    ))

    register_options(
      [
        OptString.new('SQL', [ false, 'The SQL query to execute',  'select @@version']),
      ])
  end

  def auxiliary_commands
    { "select" => "Run a select query (a LIMIT clause is probably a really good idea)" }
  end

  def cmd_select(*args)
    datastore["SQL"] = "select #{args.join(" ")}"
    run
  end

  def run
    if session
      set_mssql_session(session.client)
    else
      unless mssql_login_datastore
        print_error("Error with mssql_login call")
        info = self.mssql_client.initial_connection_info
        if info[:errors] && !info[:errors].empty?
          info[:errors].each do |err|
            print_error(err)
          end
        end
        return
      end
    end

    mssql_query(datastore['SQL'], true)
  end
end