Offensive Security Online Training & Pentesting Blog

The Synology Improbability

January 16, 2018

Recently, my manager purchased a Synology NAS device for me to do some backups. Since quite a few people I know use this particular NAS (including myself now), I decided to do a quick audit on it before integrating it into my lab environment. In this blog post, I will cover two different vulnerabilities patched by Synology.

Auditing the Auditor

July 5, 2017

Exploit Development, Offensive Security, Penetration Testing

Some time ago, we noticed some security researchers looking for critical vulnerabilities affecting “security” based products (such as antivirus) that can have a damaging impact to enterprise and desktop users. Take a stroll through the Google Project Zero bug tracker to see what we mean.

Fldbg, a Pykd script to debug FlashPlayer

November 29, 2016

Exploit Development, Offensive Security

A few months ago, we decided to make a new module for our Advanced Windows Exploitation class. After evaluating a few options we chose to work with an Adobe Flash 1day vulnerability originally discovered by the Google Project Zero team. Since we did not have any previous experience with Flash internals, we expected a pretty steep learning curve.

Hacking WPA Enterprise with Kali Linux

November 21, 2016

Penetration Testing

Admittedly, somewhat of a click-bait blog post title – but bear with us, it’s for a good reason. Lots of work goes on behind the scenes of Kali Linux, tools get updated every day and interesting new features are added constantly. Most of these tool updates and feature additions go unannounced, and are then discovered by inquisitive users – however this time, we had to make an exception.

A Decade of Exploit Database Data

May 2, 2016

Offensive Security

Managing the Exploit Database is one of those ongoing tasks that ends up taking a significant amount of time and often, we don’t take the time to step back and look at the trends as they occur over time. Have there been more exploits over the years? Perhaps fewer? Is there a shift in platforms being targeted? Has the bar for exploits indeed been raised with the increase in more secure operating system protections?

What it means to be an OSCP reloaded

March 22, 2016

Offensive Security

In our recent blog post “What it means to be an OSCP” we asked OSCPs to share their experience of what it means to have earned this certification and we received many tales of hardship and reward. Mike Benich sent in an entry that we felt very much captured the essence of the Offensive Security mentality; that the path to OSCP is challenging, stressful, and demanding, but the results leave you with much more than technological expertise.

Kali Linux 2.1.2 ARM Releases

March 21, 2016

Kali Linux

The time has come for yet another Kali ARM image release with new and updated images. Our collection of supported ARM hardware grows constantly with new images from Raspberry Pi 3, Banana Pi and Odroid-C2, with the latter being our first real arm64 image. We’re really excited about our new arm64 build environment and hope to see more 64bit ARM devices running Kali in the future. Feel free to visit our Kali Linux ARM downloads page to get the latest goodness.

Kali Rolling ISO of DOOM, Too.

February 11, 2016

Kali Linux, Penetration Testing

A while back we introduced the idea of Kali Linux Customization by demonstrating the Kali Linux ISO of Doom. Our scenario covered the installation of a custom Kali configuration which contained select tools required for a remote vulnerability assessment. The customised Kali ISO would undergo an unattended autoinstall in a remote client site, and automatically connect back to our OpenVPN server over TCP port 443. The OpenVPN connection would then bridge the remote and local networks, allowing us full “layer 3” access to the internal network from our remote location. The resulting custom ISO could then be sent to the client who would just pop it into a virtual machine template, and the whole setup would happen automagically with no intervention – as depicted in the image below.

Kali Linux Rolling Virtual & ARM Images

February 2, 2016

Kali Linux

With the recent release of Kali Rolling 2016.1 completed, we’ve gone ahead and updated our custom Kali VMware, VirtualBox, and ARM images. Here’s a few news items and updates that we have regarding these images for those who prefer to get them pre-built.

Kali NetHunter 3.0 Released

January 6, 2016

Kali NetHunter

NetHunter has been actively developed for over a year now, and has undergone nothing short of a complete transformation since its last release. We’ve taken our time with v3.0, and the results are a complete overhaul of the NetHunter Android application, with a more polished interface and a fully functioning feature set.

Through the amazing NetHunter community work led by binkybear, fattire, and jmingov, we can now proudly look at NetHunter and confidently consider it to be a stable, commercial grade mobile penetration testing platform. And so, we are really excited with todays release of NetHunter 3.0 – let the games begin!

What it means to be an OSCP

January 4, 2016

Offensive Security

When a student earns an Offensive Security certification such as the OSCP, it is a testament to the personal investment they have made as part of a commitment to excellence. Like getting a degree from a university, no matter what happens in your life from that point forward, the fact is your earned that certification and it is yours to keep. Saying this, there are some hard truths behind the path to OSCP.

MASSCAN Web Interface

December 4, 2015

Offensive Security

A couple of weeks ago, we had the opportunity to scan and map a large IP address space covering just over 3 million hosts. Our tool of choice for this was the fast and capable masscan, which is packaged in Kali. While masscan has several convenient output formats, such as binary and XML, one feature we were missing was an easy way to search our results. We quickly whipped up a little web interface that would allow us to import and search within a masscan XML output file. This feature proved very useful for us – as once we identified a specific vulnerable pattern on a machine, we could easily cross reference this pattern with over the millions of discovered hosts in our database.

Kali Linux 2.0 Top 10 Post Install Tips

August 12, 2015

Kali Linux

With Kali 2.0 now released, we wanted to share a few post install procedures we find ourselves repeating over and over, in the hopes that you will find them useful as well. We’ve also slapped in some answers to common questions we’ve been getting. Here is our top 10 list:

Offsec BlackHat Kali Dojo and Defcon 2015

Kali 2.0 Dojo Black Hat / DEF CON USA 2015

June 8, 2015

Kali Linux

Last years event was a rousing success, with many attendees staying all day long and working through the multiple exercises. We had such a great time, we wanted to do it again. This is a great chance to get hands on with Kali 2.0, learning the cutting edge features and how to best put them to use. In this two session workshop series, we will be covering how to create your own custom Kali ISO that is tweaked and modified to exactly fit your needs. This will be followed up in the second session with a hands-on exercise of deploying Kali on USB sticks so that it contains several persistent storage profiles, both regular and encrypted – including the LUKS nuke feature.

What’s New with Exploit Database?

May 13, 2015

Offensive Security

New Features in the Exploit Database Over the past 6 years, we have been maintaining and updating the Exploit Database on a daily basis, which now boasts over 35,000 exploits. While we constantly work on improving our back-end and entry quality. Over the years there haven’t really been any updates…