Bofs

In my studies for OSCP, I found several people who mostly recommend base applications for practicing BoF as being: SLmail 5.5; Brainpan; The TryHackMe Binary with 10 BoF OSCP Style; The Binaries of the OSCP laboratory study machine; The “storageserver” Binary available in the OSCP laboratory on machine LP07. The…

TL;DR — At FalconForce we love purple teaming, meaning that we engage in both red teaming and blue teaming. For the red teaming we often have a need to run offensive tools on a target machine without dropping the tool on disk. One way to do that is to convert…

Introduction While learning basic buffer overflows I found it very difficult to grasp, seemed overwhelming. Iterated on the topic for a week or so, finally understood. I followed guidance from @0xTib3rius, @thecybermentor and @LiveOverflow among countless others. All have covered this topic is great detail. This writing is a combination of…

Hello everyone. In this walkthrough, I will be demonstrating the exploitation of a Stack-based Buffer Overflow Vulnerability through the vulnerable binary given in TryHackMe — Buffer Overflow Prep lab (OVERFLOW2). Before diving in, I’d like to give thanks to Tib3rius for creating this useful and informative box. Foreknowledge If you are…

Overwriting a variable value on the stack — Binario Información Ejecutando el commando file nos muestra la información del binario como se muestra en la Figura 1. Vemos que es un binario de 32bits, no stripped. Ahora vemos a checar la seguridad. En la Figura 2 se observa que tiene NX, PIE habilitado. …

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Let’s start with a definition BoF = Birds of a Feather (fly together) Birds live in flocks (unless you’re a deadly owl or another bird with talons). These flocks look for food and a place to live and rear their young… together. There’s no leader, they just all hang out…