📑Infographics

This page features a small collection of infographics that I created.

None of the actual content is new or special. It's just my own representation of commonly available information to help remember and visualize some of the basic stuff.

DHCP Basics

Basic dynamic host configuration protocol (DHCP) communication for an initial IP address assignment

Kerberoasting

Very basic workflow of a kerberoasting attack

Kerberos Authentication

Basic kerberos authentication flow (see here for a cleaner visual representation)

Network Topology - Physical 3-Tier-Model

Example of the classical 3-layer network architecture with some basic information on common concepts surrounding this model

OAuth2 Basics

Basic workflow of an OAuth2 authorization (OAuth2 is an authorization protocol - do not use for authentication)

Pivoting

A small high level overview of pivoting possibilities

Resource Based Constrained Delegation (RBCD) via WebDAV

Cheatsheet for abusing WebDAV for privilege escalation, setting up RBCD to gain access

SSH Local Port Forwarding

Visualizing SSH port forwarding based on this great explanation

SSH Remote Port Forwarding

Visualizing SSH port forwarding based on this great explanation

The Basic Heap Layout

A basic representation of allocated and free chunks on the heap

The Cyber Kill Chain

Yet another visualization of Lockheed Martin's "Cyber Kill Chain"

The Domain Name System

A simplified overview of the steps involved in DNS

The OSI and TCP/IP Model

The Open Systems Interconnection model

The Penetration Testing Execution Standard

Visualisation of the seven steps of the Penetration Testing Execution Standard (PTES)

The PNG File Structure

Structure of a PNG file that might help for a CTF

The (32-bit) Stack Layout

A detailed representation of the stack layout during a function call on a 32-bit processor

The Sudoers File

Check the official documentation for a complete list of available options and values.

A small guide for entries in the /etc/sudoers file including the most common options

The VirtualBox NatNetwork

This diagram shall visualize the default addresses in a NatNetwork in VirtualBox as most documentation seems a bit unclear or not accurate. Analyzing some basic network traffic we can determine the following structure though.

The infographics were created using https://www.canva.com and https://www.draw.io.