Java RMI Registry Interfaces Enumeration

`##  
# This module requires Metasploit: https://metasploit.com/download  
# Current source: https://github.com/rapid7/metasploit-framework  
##  
  
require 'rex/java/serialization'  
  
class MetasploitModule < Msf::Auxiliary  
include Msf::Auxiliary::Report  
include Msf::Exploit::Remote::Java::Rmi::Client  
  
def initialize  
super(  
'Name' => 'Java RMI Registry Interfaces Enumeration',  
'Description' => %q{  
This module gathers information from an RMI endpoint running an RMI registry  
interface. It enumerates the names bound in a registry and looks up each  
remote reference.  
},  
'Author' => ['juan vazquez'],  
'License' => MSF_LICENSE,  
'References' =>  
[  
['URL', 'https://docs.oracle.com/javase/8/docs/platform/rmi/spec/rmiTOC.html']  
]  
)  
  
register_options(  
[  
Opt::RPORT(1099)  
])  
end  
  
def run  
print_status("Sending RMI Header...")  
connect  
  
send_header  
ack = recv_protocol_ack  
if ack.nil?  
print_error("Failed to negotiate RMI protocol")  
disconnect  
return  
end  
  
print_status("Listing names in the Registry...")  
  
begin  
names = send_registry_list  
rescue ::Rex::Proto::Rmi::Exception => e  
print_error("List raised exception #{e.message}")  
return  
end  
  
if names.nil?  
print_error("Failed to list names")  
return  
end  
  
if names.empty?  
print_error("Names not found in the Registry")  
return  
end  
  
print_good("#{names.length} names found in the Registry")  
  
names.each do |name|  
  
begin  
remote_reference = send_registry_lookup(name: name)  
rescue ::Rex::Proto::Rmi::Exception => e  
print_error("Lookup of #{name} raised exception #{e.message}")  
next  
end  
  
if remote_reference.nil?  
print_error("Failed to lookup #{name}")  
next  
end  
  
print_good("Name #{name} (#{remote_reference[:object]}) found on #{remote_reference[:address]}:#{remote_reference[:port]}")  
report_service(  
:host => remote_reference[:address],  
:port => remote_reference[:port],  
:name => 'java-rmi',  
:info => "Name: #{name}, Stub: #{remote_reference[:object]}"  
)  
end  
end  
end  
`