/A collection of my experiences and lessons learned from breaking (into) machines 2026-03-01T06:12:50-05:00 Vinay Sudheer / Jekyll © 2026 Vinay Sudheer /assets/img/favicons/favicon.ico /assets/img/favicons/favicon-96x96.png 2026-03-01T00:00:00-05:00 2026-03-01T06:10:58-05:00 /posts/Talk-more,-until-you-get-what-you-want/ vinay

Imagine this, you’re looking for a new job, or a mentor or a partner for a business idea. But you keep it quiet. Then a month later you find out your friend’s cousin was hiring, your coworker knew the perfect recruiter, and your neighbor literally does the thing you’re trying to learn… but nobody told you, because nobody knew. This is the problem with the popular advice “don’t tell people yo...

2021-08-11T00:00:00-04:00 2025-04-08T21:55:42-04:00 /posts/Scratching-RFID-Exploitation-0x02/ vinay

Decided to build myself a RFID Reader/Writer using Arduino Uno and the RC522 RFID module. Setting up the modules Arduino is used for the whole computation and communicating with the RFID module. The stuff required to build one are: Arduino Uno - (Arduino Nano would probably do too) RFID RC522 module Jumper wires Breadboards and LED’s for later addition. The schematics and instruct...

2021-08-08T00:00:00-04:00 2025-04-08T21:55:42-04:00 /posts/Scratching-RFID-Exploitation-0x01/ vinay

Lately, I’ve been thinking of learning something new - RFID exploitation is an area which I know nothing about, thought of starting off here. Intro Few years before I attended a security conference, where I passively heard few people talking about how they were able to unlock hotel rooms by capturing the information contained in their own room cards and manipulating the captured information -...

2021-07-05T00:00:00-04:00 2025-04-08T22:50:55-04:00 /posts/PrintNightmare-PoC-CVE-2021-34527/ vinay

This is a short take relating to the recent spooler bug that was discovered in the windows environment, marked by CVE-2021-34527. This flaw is proven to be exploited to achieve remote code execution on windows environments that has not disabled this service and is kept up and running. About CVE-2021-34527 CVE-2021-34527 was discovered by researcher, this flaw was initially classified as a Low...

2021-03-13T00:00:00-05:00 2025-04-08T22:50:55-04:00 /posts/CRTP-bites-the-dust.-CRTP-Bootcamp-Review/ vinay

It was back in August 2020 that I achieved the OSCP certification. Ever since I cleared the OSCP I was searching for which certification to take next, sadly, it took me 6 months to finally make up my mind and to enroll for the CRTP certification. I chose to go for CRTP purely due to the fact that it’s an introductory level Active Directory certifcation, and in this course the instructor Nikhil ...