A Hacker’s Tour of the X86 CPU Architecture
Overview The Intel x86 CPU architecture is one of the most prolific CPU architectures for desktops, laptops, and servers. While other architectures...
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Three Excellent API Security Practices Most People Neglect
We are very much in the age of APIs. From widely-used single-purpose products like Slack to cloud-based solutions like Amazon Web Services (AWS) and...
LD_PRELOAD: How to Run Code at Load Time
Today I want to continue the series on using LD_PRELOAD. In previous posts, we covered how to inject a shared object binary into a process, and...
Announcing Burp Co2!
This is for those of you who do web pen testing with Portswigger’s Burp proxy tool! Over the past couple of months I have been using my Java skills...
Converting NMAP XML Files to HTML with xsltproc
NMAP is a wonderful network scanner and its ability to log scan data to files, specifically XML, helps quite a bit. This enables the scan data to be...
Solving the November 13th Detective Nevil Mystery Challenge
Overview Each week on Friday, we post a social media challenge known as “Detective Nevil Mystery Challenge”. On November 13th of 2020, we released a...
3 Reasons to Pentest with Brave
Penetration testing is a race against the clock. Often, we only have a few days to examine all the functionality of a web application or an API. That...
Not-So-Random: Using LD_PRELOAD to Hijack the rand() Function
Today I wanted to continue the series on using LD_PRELOAD. In today’s post we are going to use LD_PRELOAD to hijack the rand() function in a...
Boolean Math (NOT Logic) – CISSP Domain 3
Hello everyone. We’ve got another Boolean math session lined up for you today. This time we’re going to take a quick look at the NOT logic and...
The Death and Rebirth of Musashi.js OR How I turned personal failure into better teaching tools.
A little background… As I stood in front of a class of developers trying to explain cross-origin resource sharing (CORS), I knew I wasn’t conveying...
Boolean Math (XOR Logic) – CISSP Domain 3
Hello everyone. We’ve got another Boolean math session to look over today. Our focus this time will be on the XOR logic. The XOR stands for...
LD_PRELOAD - Introduction
Today I wanted to start what I plan to be a small series of blog posts about LD_PRELOAD. LD_PRELOAD is related to Linux based systems and...