Author: tin

There are two vulnerabilities in Elasticsearch that I recently patched in my installations.

One is the ‘script’ vuln, mentioned here.

Fix by adding

script.disable_dynamic: true

to your Elasticsearch.yml config file.

The other one has to do with CORS, which exposes data via REST endpoints.

Fix by adding

http.cors.allow-origin: "http://your.FQDN.domain.name"

to your Elasticsearch.yml config file.

In fixing the second one (CORS), I run into a problem where that broke my usage of elasticsearch-head plugin.  I use the plugin as a checked out git repo on my laptop and port forward to the actual ES server.   E.g. the URL I use is something like this

file:///Users/tinle/src/opensource/elasticsearch-head/index.html?base_uri=http://127.0.0.1:9200/

So I ended up having to patch elasticsearch-head to make it work with CORS.

diff --git a/dist/app.js b/dist/app.js
index 5bce2a3..7e58acb 100644
--- a/dist/app.js
+++ b/dist/app.js
@@ -1188,6 +1188,9 @@
                request: function( params ) {
                        return $.ajax( $.extend({
                                url: this.base_uri + params.path,
+      /**
+       * 2014/06/01 tinle
+       **/
                                dataType: "jsonp",
         crossDomain: true,
                                error: function(xhr, type, message) {
diff --git a/dist/vendor.js b/dist/vendor.js
index fb1a448..2b74180 100644
--- a/dist/vendor.js
+++ b/dist/vendor.js
@@ -6838,6 +6838,10 @@ jQuery.each( [ "get", "post" ], function( i, method ) {
                return jQuery.ajax({
                        type: method,
                        url: url,
+      /**
+       * HACK 2014/06/03 tinle
+       */
+      crossDomain: true,
                        data: data,
                        success: callback,
                        dataType: type
@@ -14439,4 +14443,4 @@ under the License.
                }
                throw "could not process value " + v;
        };
-})();
\ No newline at end of file
+})();

 

Updated: 6/4/2014 – I think the above patch should work.  I’ve been using it last few days and I am able to GET/PUT/POST, e.g. make changes to ES via elasticsearch-head.