The Needle in the Technology Haystack
  • Home
  • About
  • Research

Latest

Esoteric Command Injection

Esoteric Command Injection

Leveraging Bash process substitution, ANSI-C quoting, shell expansions, and the Korn-shell-style command substitution introduced in Bash 5.3+ to perform command injection using less common techniques.

By Rene Espinosa 20 Feb 2026
And so it begins

And so it begins

After a long debate (with myself) about whether creating a blog or not has come to and end, the result as you may observe is that I've surrender to create it. I'm specialized in offensive cybersecurity, and I have been doing that for over a decade

By Rene Espinosa 29 Dec 2025

The Needle in the Technology Haystack

Driven by insomniac curiosity, a mind in overdrive -- figuring out how things works until breaking them is the only way to truly understand them

The Needle in the Technology Haystack
  • Sign up
  • Linktree
Powered by Ghost