[Bro] Elastic Search

Bob Probert bruisebrotherprobert at gmail.com
Mon Jul 29 13:05:48 PDT 2013


Thank you for the quick response!

What is on the roadmap for Brownian?

On Mon, Jul 29, 2013 at 12:48 PM, Vlad Grigorescu <vladg at cmu.edu> wrote:

> On Jul 29, 2013, at 1:23 PM, Bob Probert <bruisebrotherprobert at gmail.com>
> wrote:
> > Seth,
> >
> > I read on the security-onion list that Bro's Elastic Search writer
> doesn't write the correct metadata indexes for use with Kibana. Can you
> elaborate?
> >
> > https://groups.google.com/forum/#!topic/security-onion/mmxZfVfO0D0
> Previous versions of Kibana were designed to only work with Logstash data,
> which introduces certain assumptions about the way the data is stored. At
> one point, I had a fork of Kibana that worked with Bro, because it allowed
> extra configuration. I haven't updated it with the release of Kibana3, and
> don't intend to. Kibana3 might be flexible enough to support Bro's data,
> but I haven't checked yet.
> If you are interested in using Kibana, I would advise you to be *very*
> careful about the risks introduced by allowing a user's browser to directly
> query ElasticSearch. ElasticSearch has no security protections, and all it
> takes is a curl -XDELETE es.local:9200 to delete all your log data. Kibana
> does come with a sample nginx config, so I would definitely look at that at
> least.
> > Also, I read in the comments of "elasticsearch.bro" that there is some
> sort of memory leak either in the elastic search writer or elastic search
> itself? Can you also elaborate on this?
> >
> > http://www.bro-project.org/sphinx-git/_downloads/elasticsearch.bro
> Bro queues undelivered log messages in memory. If Bro is logging faster
> than ElasticSearch can accept logs, more and more memory is used. There's
> no memory leak - if your ElasticSearch server can't keep up, the logs
> simply have nowhere to go, and instead of being dropped, they just queue up
> on the manager.
>   --Vlad
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