Cyber Security Contests – A look behind the scenes about how to expand the community

Cyber security has long since become a strategic priority for organizations across the globe and in all sectors. Therefore, training and hiring young potential in information security has become a crucial goal.   To raise awareness of cyber security threats and help train a generation of security aware security experts, we at NVISO organize Capture the Flag (CTF) Cyber Security Events in two countries, Belgium and Germany and reach a broad audience.   Each … Continue reading Cyber Security Contests – A look behind the scenes about how to expand the community

Smart Home Devices: assets or liabilities? – Part 2: Privacy

TL;DR - Part two of this trilogy of blog posts will tackle the next big topic when it comes to smart home devices: privacy. Are these devices doubling as the ultimate data collection tool, and are we unwittingly providing the manufacturers with all of our private data? Find out in this blog post! This blog … Continue reading Smart Home Devices: assets or liabilities? – Part 2: Privacy

Proxying Android app traffic – Common issues / checklist

During a mobile assessment, there will typically be two sub-assessments: The mobile frontend, and the backend API. In order to examine the security of the API, you will either need extensive documentation such as Swagger or Postman files, or you can let the mobile application generate all the traffic for you and simply intercept and … Continue reading Proxying Android app traffic – Common issues / checklist

Smart Home Devices: assets or liabilities? – Part 1: Security

This blog post is part of a series, keep an eye out for the following parts! TL;DR - Smart home devices are everywhere, so I tested the base security measures implemented on fifteen devices on the European market. In this blog post, I share my experience throughout these assessments and my conclusions on the overall … Continue reading Smart Home Devices: assets or liabilities? – Part 1: Security

EDR: an overview of visibility improvements and economic benefits

Endpoint Detection and Response (EDR) is one of the most talked about cybersecurity topics in the last few years; it is on the agenda of most security officers as one of the first improvements to embrace in their organization, if not yet done. Why, though? What has made EDR the number one must-have security solution? … Continue reading EDR: an overview of visibility improvements and economic benefits

Testing Ripple20: A closer look and proof of concept script for CVE-2020-11898

TL;DR: We use a proof of concept script to attack a Digi Connect ME 9210 device affected by CVE-2020-11898, part of the newly-released Ripple20 series of vulnerabilities. Ripple20 In June 2020, JSOF released information about a series of 19 vulnerabilities dubbed "Ripple20". Ripple20 affects the popular Treck network stack, which is used by many connected … Continue reading Testing Ripple20: A closer look and proof of concept script for CVE-2020-11898

Using Word2Vec to spot anomalies while Threat Hunting using ee-outliers

Introduction In this blog post, we want to introduce the user to the concept of using Machine Learning techniques designed to originally spot anomalies in written (English) sentences, and instead apply them to support the Threat Analyst in spotting anomalies in security events. The basic idea behind this is that we try to identify sentences … Continue reading Using Word2Vec to spot anomalies while Threat Hunting using ee-outliers

Introducing IOXY: an open-source MQTT intercepting proxy

TL;DR: IOXY is an open source MQTT intercepting proxy, developed by NVISO for our IoT pentest needs, and now available on GitHub. Features include a GUI, live packet interception and modification and MQTTS support. The need for IOXY In the web and mobile application worlds, intercepting proxies like Burp and OWASP ZAP occupy a central … Continue reading Introducing IOXY: an open-source MQTT intercepting proxy