NetsPWN: Assessment Services

Breaking Out! of Applications Deployed via Terminal Services, Citrix, and Kiosks

View all posts by Scott Sutherland

Scott Sutherland

May 22, 2013

The goal of this blog is to provide a simple process for testing common breakout scenarios related to applications published via Kiosks, Terminal Services, and Citirx using manual techniques and free tool kits. This should be useful to penetration testers and system administrators alike.
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NetsPWN: Assessment Services

Patching Java Executables – The Easy Way

View all posts by Khai Tran

Khai Tran

May 16, 2013

      The process of patching a Java executable (.jar files) without the original source code has been known for a while. As I know of, currently there are two ways of doing it: Decompile the executable > Import …
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NetsPWN: Assessment Services

GPU Cracking: Setting up a Server

View all posts by Eric Gruber

Eric Gruber

April 15, 2013

Last week Karl Fosaaen described the various trials and tribulations we went through at a hardware level in building a dedicated GPU cracking server. This week I will be doing a complete walkthrough for installing all the software that we use on our box. This includes installing the operating system , AMD drivers, oclHashcat-plus, and John the Ripper with OpenCL support.
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NetsPWN: Assessment Services

GPU Cracking: Building the Box

View all posts by Karl Fosaaen

Karl Fosaaen

April 7, 2013

This winter, we decided to create our own dedicated GPU cracking solution to use for our assessments. It was quite the process, but we now have a fully functional hash cracking machine that tears through NTLMs at roughly 25 billion hashes per second (See below). While attempting to build this, we learned a lot about pushing the limits of consumer-grade hardware.
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NetsPWN: Assessment Services

Certificate Pinning in a Mobile Application

View all posts by Steve Kerns

Steve Kerns

April 1, 2013

Many times during our mobile application penetration testing, we are finding the applications are vulnerable to man-in-the-middle attacks (MITM). Certificate pinning is one part of the answer to MITM attacks in a mobile application. For those who do not know …
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