metasploit-framework/modules/auxiliary/scanner/ssh/ssh_version.rb

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##
# $Id$
##
##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# web site for more information on licensing and terms of use.
# http://metasploit.com/
##
require 'msf/core'
class Metasploit3 < Msf::Auxiliary
include Msf::Exploit::Remote::Tcp
include Msf::Auxiliary::Scanner
include Msf::Auxiliary::Report
def initialize
super(
'Name' => 'SSH Version Scanner',
'Version' => '$Revision$',
'Description' => 'Detect SSH Version.',
'References' =>
[
[ 'URL', 'http://en.wikipedia.org/wiki/SecureShell' ],
],
'Author' => [ 'Daniel van Eeden <metasploit[at]myname.nl>' ],
'License' => MSF_LICENSE
)
register_options(
[
Opt::RPORT(22),
OptInt.new('TIMEOUT', [true, 'Timeout for the SSH probe', 30])
], self.class)
end
def to
return 30 if datastore['TIMEOUT'].to_i.zero?
datastore['TIMEOUT'].to_i
end
def run_host(target_host)
begin
::Timeout.timeout(to) do
connect
resp = sock.get_once(-1, 5)
if (resp and resp =~ /SSH/)
ver,msg = (resp.split(/[\r\n]+/))
# Check to see if this is Kippo, which sends a premature
# key init exchange right on top of the SSH version without
# waiting for the required client identification string.
if msg and msg.size >= 5
extra = msg.unpack("NCCA*") # sz, pad_sz, code, data
if (extra.last.size+2 == extra[0]) and extra[2] == 20
ver << " (Kippo Honeypot)"
end
end
print_status("#{target_host}:#{rport}, SSH server version: #{ver}")
report_service(:host => rhost, :port => rport, :name => "ssh", :proto => "tcp", :info => ver)
else
print_error("#{target_host}:#{rport}, SSH server version detection failed!")
end
disconnect
end
rescue Timeout::Error
print_error("#{target_host}:#{rport}, Server timed out after #{to} seconds. Skipping.")
end
end
end