Walkthrough and approach of NSEC2021's the Choir of Infinite Verses challenge. By leveraging an insecure nonce reuse we are able to leverage RC4 Keystream reuse and craft our own modified cookie values.

Walkthrough and approach of the Knight's Siege Arsenal track of NSEC2021. An infrastructure based tracked that focused around ossec, a host intrusion detection system, we were tasked by the Knight Defender of North Sectoria to help test the castle's defences and report any weaknesses.

Overview and walkthrough of a top 20 finish in the 2021 ICPC Qiskit Quantum Challenge with a focus on how the challenges were solved and how complexity was reduced.

Overview and walkthrough of Xadanu QHACK 2021 Circuit Training Track. Three challenges, circuit_training 100, 200, 500 increasing in difficulty with a focus on applying QML to train a series of circuits on unknown grading input to within a tolerance.

Overview and walkthrough of IBM Qiskit Fall 2020 Quantum Final Challenge excercise with a focus on theoretically solving and circuit decomposition for reduced complexity cost. By the end of the improvement iterations the successful circuit resulted in a 12k complexity.

HTB Tabby machine walkthrough. Tabby starts off with careful recon enumeration leveraging local file inclusion to harvest credentials then using those credentials to establish a foothold through Apache manager script usage. User escalation then came through a backup zip file encrypted with the user's system password, gathered by using zip2john. Lastly root privesc was achieved by leveraging LXD system container manager as the regular user was part of the lxd control group. Overall this was a fun box to get back into the swing of things after a couple month hiatus and I learned a few tips and tricks.