Saturday, January 26, 2013

Wireless "Deauth" Attack using Aireplay-ng, Python, and Scapy

Introduction

A couple of days ago I received my order of a nifty Alfa AWUS036H and decided it'd be a perfect time to explore a few common wireless attacks. This post will explore how to perform a common "Deauthentication Attack" both the "easy" way using a fantastic tool called aireplay-ng, as well as writing our own tool in Python to perform the attack for us using the extremely powerful Scapy module. In this post I won't be going into detail about basic wireless mechanisms, but if you'd like a very comprehensive guide to understanding the topic, I really recommend the Wireless LAN Security and Penetration Testing Megaprimer on SecurityTube. With that said, let's deauth some clients.

Alfa AWUS036H

Thursday, January 10, 2013

Distributed Port Scanning: Creating an Nmap Cluster Using DNmap

Introduction

When performing a security engagement, the information gathered from port scanning is crucial. However, these scans can take a substantial amount of time when we set a reasonable timeout in an attempt to be thorough. So what happens when we need to scan a large amount of hosts? Say, an entire continent? We need to find a way to distribute the bandwidth load to multiple hosts in parallel. Fortunately, a tool has been developed which will allow us to create and manage a cluster of hosts which each have its own bandwidth dedicated to port scanning.

Monday, January 7, 2013

SANS Holiday Challenge 2012 Zone 5 Writeup

Zone 5

Heat Miser

The last zone we need to gain access to is Zone 5 for Heat Miser. Connecting to the URL we found in the previous post, we are presented with the following:

SANS Holiday Challenge 2012 Zone 4 Writeup

Zone 4

We can use the URLs obtained in the previous post to access Zone 4 for both Snow and Heat Miser.

SANS Holiday Challenge 2012 Zone 3 Writeup

Zone 3

Using the URLs obtained in the previous post, we can access Zone 3 for both Heat and Snow Miser. Let's see if we can obtain the URLs for Zone 4.

SANS Holiday Challenge 2012 Zone 2 Writeup

Zone 2

Using the URLs obtained in the previous post, we can gain access to Zone 2 for both Snow and Heat Miser.

SANS Holiday Challenge 2012 Zone 1 Writeup

Zone 1

We can use the links found in the previous post to gain access to Zone 1 for both Snow Miser and Heat Miser. Since no more introduction is needed, let's get started.