Tag Archives: Kenna

My short review of “The Forrester Wave: Vulnerability Risk Management, Q1 2018”

Last week, March 14, Forrester presented new report about Vulnerability Risk Management (VRM) market. You can purchase it on official site for $2495 USD or get a free reprint on Rapid7 site. Thanks, Rapid7! I’ve read it and what to share my impressions.

Forrester VRM report2018

I was most surprised by the leaders of the “wave”. Ok, Rapid7 and Qualys, but BeyondTrust and NopSec? That’s unusual. As well as seeing Tenable out of the leaders. ūüôā

The second thing is the set of products. We can see there traditional Vulnerability Management/Scanners vendors, vendors that make offline analysis of configuration files and vendors who analyse imported raw vulnerability scan data. I’m other words, it’s barely comparable products and vendors.

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Masking Vulnerability Scan reports

Continuing the series of posts about Kenna (“Analyzing Vulnerability Scan data“,¬†“Connectors and REST API“) and similar services. Is it actually safe to send your vulnerability data to some external cloud service for analysis?¬†Leakage of such information can potentially cause great damage to your organization, right?

Masking Vulnerability Scans

It’s once again a problem of trust to vendor. IMHO, in some cases it may make sense to hide the real hostnames and ip-addresses of the target hosts in scan reports. So, it would be clear¬†for analysis vendor that some critical vulnerability exists somewhere, but it would not be clear where exactly.

To do this, each hostname/ip-address should be replaced to some values of similar type and should be replaced on the same value each time. So the algorithms of Kenna-like service could work with this masked reports. This mean that we need to create a replacement dictionary.

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Kenna Security: Connectors and REST API

In the last post about Kenna Security cloud service I mentioned their¬†main features for analyzing data from different vulnerability scanners. Now let’s see how to import Tenable Nessus scan results in Kenna.¬†Here you can see the list of connectors for all supported products:

Kenna connectors

Three connectors for Nessus are available:

  • Nessus Importer retrieves existing scan results from your Nessus server.
  • Nessus Scanner can schedule scans on your Nessus server.
  • Nessus XML imports xml (.Nessus2) files.

First two connectors work with Nessus server directly. And they probably won’t work anymore with Nessus Professional 7, because of API removing (see “New Nessus 7 Professional and the end of cost-effective Vulnerability Management (as we knew it)“). If Nessus server is deployed on-premise you should use special¬†Kenna¬†Virtual Tunnel.

Last “Nessus XML” connector is the most flexible. No matter how you got your scan results, it will be possible to import them to Kenna.¬†See how to get XML reports from from Nessus server in a post “Retrieving scan results through Nessus API“.¬† You can upload XML scan results using Kenna web GUI (not very efficient way, but for testing – why not?) or REST API.

To use Kenna REST API you will need an Application Token. Go to the the Settings menu -> Applications:

Kenna settings

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Kenna Security: Analyzing Vulnerability Scan data

I’ve been following Kenna Security (before 2015 Risk I/O) for a pretty long time. Mainly, because they do the things I do on a daily basis: analyse various vulnerability scan results and feeds, and prioritize detected vulnerabilities for further mitigation. The only difference is that my scripts and reports are highly specific for my employer’s infrastructure and needs. And guys from Kenna team make a standardized scalable cloud solution that should be suitable for everyone.

I think their niche is really great. They do not compete directly with Vulnerability Management vendors. They can be partners with any of them, bringing additional features to the customers. Perfect win-win combination. That’s why Kenna speakers regularly participate in joint webinars with VM vendors.

I couldn’t lose a great opportunity to see Kenna Security service in action. ūüėČ

In this post I will try to make a very brief review of Kenna functionality and formulate pros and cons of the solution.

When you submit trial request at https://www.eu.kennasecurity.com/signup (or https://app.kennasecurity.com/signup if you are not in Europe) you will get a link to your company account:

https://corporation.eu.kennasecurity.com/

The login screen will look like this:

Kenna login

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