0407, 2023

Training Teaser: Token Hijacking via PDF File – Video Tutorial

René Pfeiffer/ July 4, 2023/ Conference, Security, Training

Tokens make the world go around. Therefore, we want to share with you the next teaser about Dawid Czagan’s training at DeepSec 2023. PDF files are everywhere and they can be used to hack your web application. Imagine that the attacker prepares a malicious PDF file which steals sensitive data from a user. The PDF file is uploaded to the web application, the user reads this PDF file, and finally sensitive data is exfiltrated from the user’s browser. It’s scary, isn’t it? Dawid will show you in a free video step by step how this attack works and how you can check if your web application is vulnerable to this attack. Watch the video and consider joining Dawid Czagan’s training Full-Stack Pentesting Laboratory: 100% Hands-On + Lifetime LAB Access (14-15 November, DeepSec 2023).

1610, 2019

DeepSec 2019 Talk: What’s Wrong with WebSocket APIs? Unveiling Vulnerabilities in WebSocket APIs – Mikhail Egorov

Sanna/ October 16, 2019/ Conference, Security

WebSocket protocol is many times more efficient than HTTP. In recent years we can observe that developers tend to implement functionality in the form of WebSocket APIs instead of traditional REST APIs, that use HTTP. Modern technologies and frameworks simplify the building of efficient WebSocket APIs. We can name GraphQL subscriptions or Websocket APIs supported in Amazon API Gateway. WebSockets APIs have a different security model compared to REST APIs, resulting in unique attack vectors. Nevertheless, developers rarely take them into account. WebSockets in browsers do not use the same-origin policy (SOP) concept, their security model is based on origin check. Out-of-the-box WebSockets provide no authentication and authorization mechanisms. WebSocket protocol is stateful and has two main phases: A handshake and data transfer phase. Most of the time authentication and authorization logic is implemented

2608, 2019

DeepSec Training: Black Belt Pentesting / Bug Hunting Secrets you’ve always wanted to know

René Pfeiffer/ August 26, 2019/ Conference, Security, Training

The Web and its technologies have become the perfect frontier for security experts for finding bugs and getting a foothold when doing penetration tests. Everything has a web server these days. And everything web server will happily talk to web clients. The components involved are more than just simple HTML and JavaScript. The developer notion of doing things full stack requires security experts to do the same. This is where our DeepSec 2019 training session Black Belt Pentesting / Bug Hunting Millionaire: Mastering Web Attacks with Full-Stack Exploitation by Dawid Czagan comes into play. Dawid Czagan will show you how modern applications work, how they interact, and how you can analyse their inner workings. He will enable you to efficiently test applications, find bugs, and compile the set of information needed to fix the

1908, 2019

DeepSec Training: Black Belt Pentesting / Bug Hunting Millionaire – Mastering Web Attacks with Full-Stack Exploitation

René Pfeiffer/ August 19, 2019/ Conference, Training

Web applications are gateways for users and attackers alike. Web technology is used to grant access to information, public and sensitive alike. The latest example is the Biostar 2 software, a web-based biometric security smart lock platform application. During a security test the auditors were able to access over 1 million fingerprint records, as well as facial recognition information. How can you defend against leaks like this? Well, you have to understand all layers of the application stack. Modern web applications are complex and it’s all about full-stack nowadays. That’s why you need to dive into full-stack exploitation if you want to master web attacks and maximize your payouts. Say no to classic web application hacking. Join the training session at DeepSec 2019 and take advantage of Dawid Czagan’s unique hands-on exercises and become

1107, 2019

Training Teaser: Black Belt Pentesting a.k.a. Bug Hunting Millionaire – Mastering Web Attacks with Full-Stack Exploitation

René Pfeiffer/ July 11, 2019/ Conference, Training

Modern web applications consist of far more components than HTML content and a few scripts. In turn properly attacking web applications requires a diverse set of skills. You need to know how the back-end and the front-end works. This includes all of the scripting languages, data storage technologies, user interface peculiarities, frameworks, hosting technologies, and many more layers. DeepSec 2019 will feature a full-stack web exploitation dojo enabling you to understand the security of web applications, how to break them, and how to protect them. The training will be hosted by Dawid Czagan, expert in the field. He will guide you through every technology and attack method relevant to information security of web applications such as: REST API hacking AngularJS-based application hacking DOM-based exploitation Bypassing Content Security Policy (CSP) Server-side request forgery Browser-dependent exploitation

1911, 2018

Special Offer for “Mastering Web Attacks with Full-Stack Exploitation” Training – get 3 for the Price of 1

René Pfeiffer/ November 19, 2018/ Conference

The DeepSec training Bug Hunting Millionaire: Mastering Web Attacks with Full-Stack Exploitation by Dawid Czagan has some seats left. Dawid has agreed to give away free access to two of his online courses for everyone booking tickets until Wednesday, 21 November 2018 (2359 CET). This gives you a perfect preparation for penetration testing, software development, and an edge for any bug bounty programmes out there. You can get a glimpse of the online trainings, well, online of course. Every penetration test and every attempt to defend your own assets can’t do without knowledge of web technologies. Since the Web has evolved from being simple HTML content, you absolutely have to know about all layers modern web applications use. The training will give you the means to understand what’s going on, to find bugs, and

0911, 2018

Last Call for your Web Application Security Training – Break all teh Web and enjoy it!

René Pfeiffer/ November 9, 2018/ Conference, Security

The Internet is full of web applications. Sysadmins used to joke that HTTP is short for Hypertext Tunnelling Protocol, because anything but web content is transported via HTTP these days. It’s the best way to break out of restricted environment, too. So the chances are good that you will need the skills for dealing with all kinds web. Fortunately our training Bug Hunting Millionaire: Mastering Web Attacks with Full-Stack Exploitation conducted by Dawid Czagan has a few seats left. Don’t get distracted by the title. Focus on the phrase full-stack exploitation. It’s not just about sending HTTP requests and seeing what the application does. It’s all about using the full spectrum of components and technologies used for modern web applications. The training is not only suited for information security researchers. The course addresses REST

2409, 2018

DeepSec 2018 Training: Professional Bug Hunting for Early Bird Millionaires – Sensitive Data Exposure

René Pfeiffer/ September 24, 2018/ Training

DeepSec’s Early Bird Tariff is still valid for today. If you are interested in bug hunting for money, i.e. bug bounties, then you should hurry. Dawid Czagan is conducting a training at DeepSec 2018 where you can learn all you need to get started. If you don’t know what to expect, we recommend one of Dawid’s online courses to get into the mindset. His tutorial on finding sensitive data exposure is available via his web site. In case you are interested, please head over to our ticket shop. Early bird tickets are still available until midnight!

2409, 2018

DeepSec 2018 Training: Advanced Penetration Testing in the Real World – Davy Douhine & Guillaume Lopes

Sanna/ September 24, 2018/ Conference, Security, Training

Guillaume and Davy, senior pentesters, will share many techniques, tips and tricks with pentesters, red teamers, bug bounty researchers or even defenders during a 2-day 100% “hands-on” workshop. This is the very training you’d like to have instead of wasting your precious time trying and failing while pentesting. The main topics of the training are: Buffer overflow 101: Find and exploit buffer overflows yourself and bypass OS protections. (A lot of pentesters don’t even know how it works. So let’s have a look under the hood); Web exploitation: Manually find and exploit web app vulnerabilities using Burpsuite. (Yes, running WebInspect, AppScan, Acunetix or Netsparker is fine but you can do a lot more by hand); Network exploitation: Manually exploit network related vulnerabilities using Scapy, ettercap and Responder. (Because it works so often when doing

0709, 2018

DeepSec Training: Bug Bounty Hunting – How Hackers Find SQL Injections in Minutes with Sqlmap

René Pfeiffer/ September 7, 2018/ Security, Training

In a previous article we talked about the Bug Bounty Hunting training by Dawid Czagan at DeepSec 2018. In case you do now know what to expect, there is a little teaser consisting of a full blown tutorial for you. Dawid has published as video tutorial that shows you how to use Sqlmap in order to find SQL injections. It serves as a perfect example of what to expect from his two-day training and what you absolutely need to play with for preparation. DeepSec trainings are in-depth, not superficial. Dawid’s training will go into much deeper detail. Software developers are well advised to use attack tools against their own creations. It helps to understand what error conditions your code might be in and what you have to do when sanitising data. SQL injection attacks

0510, 2017

DeepSec 2017 Talk: Bypassing Web Application Firewalls – Khalil Bijjou

Sanna/ October 5, 2017/ Conference, Security

Everyone has firewalls or filters. They are now called application-level gateway (ALG) and have lots of features included. Algorithms, signatures, heuristics, protocol checks, verification; you name it. It’s all in there. But does it work? Obfuscation and evading technology has been around since the first filter was created. Anticipating what data might look like is hard, and some protocols were designed to be as ambivalent as possible, one might think. At DeepSec 2017 Khalil Bijjou will show you what can be done being evasive in the web. Security experts perform security assessments of web applications in order to identify vulnerabilities that could be exploited by malicious users. Web Application Firewalls add a second layer of protection to web applications in order to mitigate these vulnerabilities. The attempt to bypass Web Application Firewalls is an

0810, 2016

DeepSec2016 Talk: The (In)Security or Sad State of Online Newspapers – Ashar Javed

Sanna/ October 8, 2016/ Conference, Internet, Press

Web sites are simply, one might think. The client requests a page, the server sends it, the layout is applied, and your article appears. This is a heavy simplification. It worked like this back in 1994. Modern web sites are much more complex. And complexity attracts curious minds. Usually that’s what gets you into trouble. Now content management systems serve the web page of the 1990s with a lot of queries, executable code, and from different servers. The ever changing Top 10 list of mistakes from the Open Web Application Security Project can show you the tip of the iceberg. Ashar Javed took a closer look at online newspapers, and he found some scary stuff. The goal of his talk is to raise awareness about the (in)securities of online newspapers. Ashar Javed hopes that their

2109, 2016

DeepSec2016 Workshop: Secure Web Development – Marcus Niemietz

Sanna/ September 21, 2016/ Development, Security, Training

The World Wide Web is everywhere. It has become the standard protocol for transferring data, accessing applications, configuring devices, controlling software, or even multimedia streaming. Most software development can’t be done without web applications. Despite the easy concept the technologies used in „HTTP/HTTPS“ have grown in very complex beasts. Few get it right, lots of developers make mistakes and end up at the wrong side of a security presentation at a conference. Fortunately there is help. We offer you a workshop at DeepSec 2016 to make your web software development great again! The “Secure Web Development” training by Marcus Niemietz systematically covers the OWASP Top 10 threats as well as threats, which may be important in the future (e.g. HTML5 and AngularJS attacks). At the end of the training each attendee will be able to create her/his

0809, 2016

DeepSec 2016 Talk: CSP Is Dead, Long Live Strict CSP! – Lukas Weichselbaum

Sanna/ September 8, 2016/ Conference

The Content Security Policy (CSP) is an additional layer of security for web applications. It is intended to detect and mitigate certain types of attacks. CSP is deployed by using the HTTP Content-Security-Policy header for publishing a policy. The policy instructs the web client how various resources will be used, where they come from, and the like. Violations of the policy can be reported to an application. Basically you can give the web client important hints what to expect. The reporting helps your intrusion detection process since the web clients usually understand the Web better than IDS modules. Lukas Weichselbaum is working at Google, and he will explain how CSP can be bypassed. In this presentation I’ll highlight the major roadblocks that make CSP deployment difficult. I talk about common mistakes, about how we automatically bypassed

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