IPMI 2.0 Cipher Zero Authentication Bypass Scanner

`##  
# This module requires Metasploit: https://metasploit.com/download  
# Current source: https://github.com/rapid7/metasploit-framework  
##  
  
  
class MetasploitModule < Msf::Auxiliary  
include Msf::Auxiliary::Report  
include Msf::Auxiliary::UDPScanner  
  
def initialize  
super(  
'Name' => 'IPMI 2.0 Cipher Zero Authentication Bypass Scanner',  
'Description' => %q|  
This module identifies IPMI 2.0-compatible systems that are vulnerable  
to an authentication bypass vulnerability through the use of cipher  
zero.  
|,  
'Author' => [ 'Dan Farmer <zen[at]fish2.com>', 'hdm' ],  
'License' => MSF_LICENSE,  
'References' =>  
[  
['CVE', '2013-4782'],  
['URL', 'http://fish2.com/ipmi/cipherzero.html'],  
['OSVDB', '93038'],  
['OSVDB', '93039'],  
['OSVDB', '93040'],  
  
],  
'DisclosureDate' => 'Jun 20 2013'  
)  
  
register_options(  
[  
Opt::RPORT(623)  
])  
  
end  
  
def scanner_prescan(batch)  
print_status("Sending IPMI requests to #{batch[0]}->#{batch[-1]} (#{batch.length} hosts)")  
@res = {}  
end  
  
def scan_host(ip)  
console_session_id = Rex::Text.rand_text(4)  
scanner_send(  
Rex::Proto::IPMI::Utils.create_ipmi_session_open_cipher_zero_request(console_session_id),  
ip, datastore['RPORT']  
)  
end  
  
def scanner_process(data, shost, sport)  
info = Rex::Proto::IPMI::Open_Session_Reply.new.read(data)# rescue nil  
return unless info && info.session_payload_type == Rex::Proto::IPMI::PAYLOAD_RMCPPLUSOPEN_REP  
  
# Ignore duplicate replies  
return if @res[shost]  
  
@res[shost] ||= info  
  
if info.error_code == 0  
print_good("#{shost}:#{sport} - IPMI - VULNERABLE: Accepted a session open request for cipher zero")  
report_vuln(  
:host => shost,  
:port => datastore['RPORT'].to_i,  
:proto => 'udp',  
:sname => 'ipmi',  
:name => 'IPMI 2.0 RAKP Cipher Zero Authentication Bypass',  
:info => "Accepted a session open request for cipher zero",  
:refs => self.references  
)  
else  
vprint_status("#{shost}:#{sport} - IPMI - NOT VULNERABLE: Rejected cipher zero with error code #{info.error_code}")  
end  
end  
end  
`