Tag Archives: Splunk

Vulchain scan workflow and search queries

This post will be about my Vulnerability Scanner project – Vulchain. Recently I’ve spent couple of my weekends almost exclusively on coding: refactoring the scan engine, creating API and GUI.

Vulchain scan workflow and search queries

I was doing it because of the conferences, where I will be speaking soon:

Pretty intense schedule for a guy who spends most of his time in PyCharm and Linux console. 😉 Very excited! So, it seemed right to add a couple of slides about my project and show that something is already working.

Continue reading

My short review of “IDC Worldwide Security and Vulnerability Management Market Shares 2016”

On February 12 IDC published new report about Security and Vulnerability Management market. You can buy it on the official website for $4500. Or you can simply download free extract on Qualys website (Thanks, Qualys!). I’ve read it and now I want to share my impressions.

IDC Worldwide Security and Vulnerability Management Market Shares 2016

I think it’s better start reading this report from the end, from “MARKET DEFINITION” section. First of all, IDC believe that there is a “Security and Vulnerability Management” (SVM) market. It consists of two separate “symbiotic markets”: security management and vulnerability assessment (VA).

Continue reading

Vulnerability Management for Network Perimeter

Network Perimeter is like a door to your organization. It is accessible to everyone and vulnerability exploitation does not require any human interactions, unlike, for example, phishing attacks. Potential attacker can automate most of his actions searching for an easy target. It’s important not to be such of target. 😉

Vulnerability Management for Network Perimeter

What does it mean to control the network perimeter? Well, practically this process consist of two main parts:

  • Assessing network hosts that are facing Internet using some Network Scanner (Nessus, OpenVAS, Qualys, MaxPatrol. F-Secure Radar, etc.)
  • Assessing application servers, e.g. Web Servers, on these hosts using some special tools, e.g. Web Application Scanners (Acunetix, Burp Suite, Qualys WAS, Tenable.io WAS, High-Tech Bridge ImmuniWeb, etc.)

Active scanning is a good method of perimeter assessment. Dynamics of the assets is relatively low, comparing with the Office Network. Perimeter hosts usually stays active all the time, including the time when you are going to scan scanning them. 😉

Most of the dangerous vulnerabilities can be detected without authorization: problems with encryption (OpenSSL Heartbleed, Poodle, etc.). RCE and DoS of web servers and frameworks (Apache Struts and Equifax case)

The best results can be achieved with scanners deployed outside of your network. Thus, you will see your Network Perimeter the same way a potential attacker sees it. But certainly, you will be in a better position:

  • You can ask your IT administrators to add your network and WAS scanners in white list, so they will not be banned.
  • You can check and correlate scan results of remote scanner with (authenticated?) scan results produced by the scanner deployed in your organization’s network and thus filtering false positives.

What about the targets for scanning? How should you get them?

Continue reading

Tracking software versions using Nessus and Splunk

Let’s say you have already exported scan results from Nessus or Tenable SecurityCenter to Splunk using HTTP event connector, or in some other way. And you see that some critical software vulnerability was published. For example, this month Jira critical vulnerability. How to find out, do we have vulnerable servers in our infrastructure or not?

Nessus plus Splunk

Of course we can start a new Nessus scan to detect vulnerable hosts. However, Nessus plugin for this particular vulnerability may be released with a big latency and you will not find this vulnerability in your scans. So, it’s may be faster just to search for detected Jira servers in available scan results using Splunk searching mechanism.

Continue reading