Travis Phillips

Travis Phillips is a Senior Security Consultant with Secure Ideas. Before joining Secure Ideas, he worked in the medical field as a data analyst & web/software developer before moving on to information security doing SOC work. He later moved on to product security testing for embedded systems on several architectures and device types. Travis also enjoys CTF’s & wargames for hacking challenges as a pastime. Travis has developed a strong skill set towards application security as a result of both working in the development field as well as the security field, reviewing security of applications in both roles. Travis enjoys teaching at local professional groups and conferences when he can and also building tools to make security testing faster and easier.

Solving the November 13th Detective Nevil Mystery Challenge

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 challenge that contained a payload and it was only solved by one person on twitter.  That challenge is as follows: I decided it might be a good idea to do …

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LD_PRELOAD: Not-So-Random

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 simple random number guessing game to control the generation of random numbers and effectively be able to cheat in this simple game by making it extremely predictable.  The code …

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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 revolves around the loader system and how shared object libraries resolve linker symbols when loading a dynamically linked ELF binary and is loaded before any other shared object libraries. …

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