Tag Archives: bash

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.

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Vulners.com and ranges of dates

I have already wrote earlier how to automatically retrieve data from the Vulners.com vulnerability database: if you need objects of some particular type, it’s better use Collection API, if you want to get different types of objects using advanced queries, your choice is Search API v.3.

But what if we want to get, not all the objects, but only new or modified ones in a some date range? How can we do it in Vulners?

Vulners.com date ranges

Search queries

Each object in Vulners (vulnerability, patch, bulletin, etc.) has a publication date, and modification date. You can see it if you open some Vulners object in json format, for example CVE-2017-6301:

        "published": "2017-02-23T23:59:00",
        "modified": "2017-02-24T14:45:17",

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Retrieving Palo Alto NGFW security events via API

It may seem like NGFW topic is not really related to vulnerability assessment and vulnerability management. In fact, correlation of security events in traffic with vulnerability scan data sometimes may give very interesting results. For example, if we have a Windows desktop host with critical vulnerabilities, it won’t be a big surprise to detect some botnet activity related to this host. Fixing of this hosts should be a high priority task. Moreover, Palo Alto NGFW now supports signatures for vulnerability detection, like Tenable PVS. It’s pretty logical: if you are already searching something in the network traffic, why not to look also for vulnerable software versions in the packet headers?

Palo Alto Monitor

I took this image from the official manual

At the “Monitoring” tab of Palo Alto NGFW GUI web-interface you can see a flow of security events, produced by Palo Alto security rules, standard or custom. With PA query language you may easily filter this events. It is also possible to produce reports. However, the standard reports Palo Alto are not very informative and only represent some statistics of attacks without any additional information. Much more interesting reports you can make using Palo Alto API.

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Getting public IP address ranges for an organization

Small bash script to automate the work with Qrator Radar public API.

Qrator Radar

The idea is to get autonomous system (AS) number of the organization by it’s name and retrieve all related IPv4 Prefixes. Why you may need it? To be sure, for example, that you scan all the hosts of organization available from the Internet for vulnerability management, penetration testing or bug bounty activity. For smaller organizations that don’t have own AS that obviously will not work.

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Retrieving product expiration dates from Tenable Customer Support Portal

I don’t say that it is a rocket science or something, but maybe someone will need to automate Tenable Support portal routine, and here will be a script, which can be used. My own case was to get expiration date for purchased and trial Tenable products. To know in advance when and what products should be bought and updated.

Registered Products

It turned out that getting this data from deployed products via APIs is not as trivial as it sounds, but I will write about this topic next time.

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