Usefull add-ons for Webapp Pentesting and Bug Bounty

So here is just a very short one. Always when I have to set up a new pentest machine, I have to look it up again, so here is a small list of browser addons that are usefull for webapp pentesting (using Firefox):

  • wappalyzer
  • Temp Mail
  • Hackbar Quantum
  • retire.js
  • Foxy Proxy Basic
  • shodan.io
  • Export Cookies

Review Threatcon & Offensive HTML, SVG, CSS & Other Browser-Evil

End of August I travelled from Germany to far away Kathmandu in Nepal for visiting threatcon and the browser security workshop by Mario Heiderich and the beautiful country. Here is a short review.

Browser Security Workshop

With the conference I booked the 2 days workshop Offensive HTML, SVG, CSS & Other Browser-Evil. The covered topics:

  • History of browser security and the browser market
  • Defense 101
  • XSS
  • URL obfuscation
  • Unicode, character sets
  • Breaking Filters (WAF)
  • IE/Edge compatibility modes
  • mXSS

The presentation includes 255 slides, so in 2 days it was not possible to cover everything, also there was no time for the hands-on parts. XSS is not the big topic anymore, but I was happy I can fresh up my knowlege and also learned some new stuff.

The Conference

The conference was one day with a single track, so contrary to Blackhat & Defcon everything was clearly arranged. On the speaker list were Mario Heiderich, Jim Manico, Georgia Weidman, Vignesh, Yogesh Ojha, Aniruddha Dolas and Prashant Tilekar, you may see some familiar names here.

Between the presentations there was lot of time for networking and discussions, with the business pass I also joint the evening event which came with great drinks & food.

For me the best at conferences, of course, is the networking part. It was a great pleasure to meet and connect with new people and friends.

When you are new to IT security I highly recommend to visit smaller and local conferences if possible, it is much easier to connect and to visit.

Thanks to the organizers of threatcon for a great event.

Visiting Nepal

After the conference I took four days for traveling and sightseeing, this is just a very small impression (I made >1000 shots). I travel a lot, and this was one of the most impressive experiences I’ve had.

Interview with Christoph Haas

A short interview with Christoph Haas with some advise for career starters.

What brought you to IT security? How did you get into penetration testing?
I started with an apprenticeship as a developer. After that I made my Bachelor in Business Informatics. During this I worked three days a week in the security department of a bigger company in the technology sector. However, during this phase I found out that my part is more in the “offensive” field 😉 . So I met the company I started working as a penetration tester at a small German conference (Backtrack-Day).

You are the owner of Securai, a penetration testing company that is specialized in application security. Why did you specialize?
I believe that specialization is the key success factor. IT security is a complex topic, but if you really want to be good at it, you have to focus on one thing.

Do you also look for newbies in the field?
Sure, always 🙂 !

What do you expect from applicants? What do you think makes a good penetration tester?
They really have to want it. If someone is getting frustrated easily, I would recommend another career. They also should be happy about communicating with other people. Penetration testing is a consulting business, so you have to deal with people a lot. They should have fun learning new things, because this is what you have to do all the time, even after years in pentesting.
From a technical perspective we are looking for people with a development background, as I think they can communicate better with devs and as we focus on appsec, we mostly have those types of customers.

What has been the best or worst moment in your penetration testing career?
The best moment is, when after hours or days of struggling you finally get an application to fall. This is the fun part about pentesting 🙂 .

What is your thought about certifications?
I think they are necessary and sometimes even are fun to do. I personally like the OSCP and we basically use it as a test for new colleagues.

Christoph is Founder and Owner of Securai, a company focusing on application security.

Career Path Security Researcher & Bug Bounty

Security Researchers work in the field of bug bounties and exploitation, often they are independent but sometimes they also work as employees. I think that both paths are not easy, but of course it can be done. On both paths you can earn lots of $$$ but I also heard of people who came out disappointed. Some people starting this as a side job and then go independent. If you don’t know some basics look here and here.

The reason why I put both paths in one post is that for me you need a similar mindset. You have to be highly motivated, need to learn a lot before you gain some success (well, at least for most people) and if you go independent you work on your own. For both you need a plan or tactics, you can’t just start hacking and hope to find something.

When you want to participate in bug bounties normally you are using platforms like hackerone or bugcrowd, but lot’s of companies have their own bounty programs. Since most of these programs are public this makes starting easy.

On the other hand, when you want to start as a researcher and do exploit development, you also have some public resources like ZDI or zerodium. But what is more important than in bug bounty, is networking with other researchers and companies. One way is to go at conferences and trainings, have a look at the links section of this article.

Both paths might take months or even years until you get into it, so this article can only be a starting point that I hope is helpful.

Links

Bug Bounty

Blog Articles, programs

LevelUp 0x02 – Bug Bounty Hunter Methodology v3

Advanced Web Attacks and Exploitation (AWAE)

Probably interesting for both paths, but web hacking is more bug bounty for me…
https://www.offensive-security.com/information-security-training/advanced-web-attack-and-exploitation/

Exploiting

35C3 – From Zero to Zero Day

The Exploit tutorials from corelan

https://www.corelan.be/index.php/articles/
That said, I can highly recommend the trainings that you can book at several conferences:
https://www.corelan-training.com/

OSCE- Cracking the Perimeter (CTP)

Also mentioned here before, the Offensive Security course and certification:
https://www.offensive-security.com/information-security-training/cracking-the-perimeter/

OSEE – Advanced Windows Exploitation (AWE)

I also heard great things about the AWE (OSEE) for more in depth exploitation, but I don’t have personal experience here.

Even more links:
https://www.zerodayinitiative.com/
https://zerodium.com/
https://googleprojectzero.blogspot.com/
and especially this article from project zero:
https://googleprojectzero.blogspot.com/p/working-at-project-zero.html

Conferences

As said before, learning new things and networking is really important, so here are some conferences that seem good, you should also consider to take some trainings:

Books

Hands-On Bug Hunting for Penetration Testers
Author: Joseph Marshall
Content: Go through common bugs in Webapps and introduction to bug bounties
Career: Penetration Tester, Bug Bounty
Level: Beginner
Buy at Amazon U.S.
Buy at Amazon Germany

The Shellcoder’s Handbook
Authors: Chris Anley, John Heasman, Felix “FX” Lindner, Gerardo Richarte
Content: Exploiting security holes for Windows, Solaris, MacOSX, Cisco. Although from 2007 still worth reading.
Career: Penetration Tester, Exploiter
Level: Intermediate, Experts
Buy at Amazon U.S.
Buy at Amazon Germany

Hacking: The Art of Exploitation
Author: Jon Erickson
Content: Goes from the first steps in Bash and C to in depth exploitation and debugging on Linux.
Career: Penetration Tester, Exploit Developer
Level: Beginner, Intermediate, Expert
Buy at Amazon U.S.
Buy at Amazon Germany

And here is a great free book:
Modern Windows Exploit Development
http://docs.alexomar.com/biblioteca/Modern%20Windows%20Exploit%20Development.pdf

Book Review Hands-on Bug Hunting for Penetration Testers

Hands-On Bug Hunting for Penetration Testers
Author: Joseph Marshall
Content: Go through common bugs in Webapps and introduction to bug bounties
Career: Penetration Tester, Bug Bounty
Level: Beginner
Buy at Amazon U.S.
Buy at Amazon Germany

The main audience of Bug Hunting for Penetration Testers are coders and penetration testers interested in bug bounties. The book goes through bug bounty programs, penetration testing and the usual web security vulnerabilites like XSS, SQL injections, XEE and so on.

As the title sais, the book was written for people with prior knowledge in penetration testing. So the vulnerabtilies are not explained in depth, but nevertheless it is suitable also for beginners if they are willing to go deeper later and using other sources, after each chapter there are some recommendations for it.

For me the perspective as a bug hunter is pretty interesting, and the book is going into automatisation of some tasks and which vulnerabilites are usually interesting for bug bounty programs and how to report them. For getting an impression about the coding have a look here, unfortunatelly the code base is for python 2.7 and not python 3. The books is also informing about information gathering and bug bounty strategies. What I also like are the end-to-end examples, from finding and exploiting a vulnerability to a short example report. Later reporting is explained into more detail.

If you are interested in Bug Bounty programs you should have a look into this book.

Career Path Penetration Testing Basics

Penetration Testing – “A method for gaining assurance in the security of an IT system by attempting to breach some or all of that system’s security, using the same tools and techniques as an adversary might.” (From wikipedia)

The scope of the article is to help to get your first job as a penetration tester. If you have more great links or recommendations please add them in the comments section. Becoming a good penetration tester requires much more skills than described here. It also means that you never stop learning.

If you don’t know the IT- and IT security basics yet, please have a look here. When you want to start a career in Penetration Testing you should know that most of the penetration tests performed today are Web Application tests. Therefore this article is focusing on this topic. Later I will add new posts with Specializiation Paths for more advanced topics like exploitation, red teaming and so on.

As already mentioned in the article Career Path Security Basics, I strongly suggest that you make a plan what goal you want to reach. For example playing CTF all the time might be fun for some people, but if you need the OSCP it might not be helpful to waste too much time.

Web App Penetration Testing

Port Swigger: Web Security Academy
Content: Teaches the basics of Web Application Security, so far SQL Injection, XSS, OS command injection and File Path traversal. Comes with small labs.
Career: Penetration Test but I recommend it also for everyone interested in security
Level: Beginner
Price: Free

Recommended Link about Web App Hacking:

 

General

OSCP
If you want to start a career in Penetration Testing you might consider to make the OSCP certification. But you should have in mind that the OSCP is extremely time consuming and it is not a must have, but definitely a door opener. Therefore I recommend to do the OSCP certification. Here is an article about pros & cons of certifications.

Hands On

Here are some hands on for labs and learning. Some of them are online, others have to be installed and run by yourself.

Books

The Web Application Hackers Handbook
Authors: Daffy Stuttard, Marcus Pinto
Content: The standard book about hacking Web Applications, goes into depth about the most important topics. Authors also created the BurpSuit.
Career: Penetration Tester
Level: Good for beginners, but also useful for experienced penetration testers
Buy at Amazon U.S.
Buy at Amazon Germany

Penetration Testing: A Hands-On Introduction to Hacking
Author: Georgia Weidman
Content: A great introduction into penetration testing.
Career: Penetration Tester
Level: Beginner
Buy at Amazon U.S.
Buy at Amazon Germany

Metasploit: A Penetration Tester’s Guide
Authors: David Kennedy, Jim O’Gorman, Devon Kearns, Mati Aharoni
Content: Introduction to Metasploit and penetration testing
Career: Penetration Tester
Level: Beginner, Intermediate
Buy at Amazon U.S.
Buy at Amazon Germany

The Hacker Playbook 2
Author: Peter Kim
Content: Book for penetration testing, hands on hacking, pivoting, evasion and so on. 
Career: Penetration Tester
Level: All
Buy at Amazon U.S.
Buy at Amazon Germany

Network Security Assessment
Author: Chris McNab
Content: Assessment of various network services.
Career: Penetration Tester
Level: All
Buy at Amazon U.S.
Buy at Amazon Germany

German Book: Hacking mit Metasploit
Author: Michael Messner
Content: Great introduction to penetration testing and metasploit.
Career: Penetration Tester 
Level: Beginner/Intermediate
Buy at Amazon U.S.
Buy at Amazon Germany

Links

Thanks @SparkyS04 for proofreading.

Review Portswigger Web Security Academy

Link: Web Security Academy
Content: Teaches the basics of Web Application Security, so far SQL Injection, XSS, OS command injection and File Path traversal. Comes with small labs.
Career: Penetration Tester but I recommend it also for everyone interested in security
Level: Beginner
Price: Free

Web Security Academy

The description from the originial website:
Welcome to the Web Security Academy. This is a brand new learning resource providing free training on web security vulnerabilities, techniques for finding and exploiting bugs, and defensive measures for avoiding them.
The Web Security Academy contains high-quality learning materials, interactive vulnerability labs, and video tutorials. You can learn at your own pace, wherever and whenever suits you. Best of all, everything is free!

For tracking and doing the labs you need to create an accout.

I found the explanations and the labs very suitable for beginners and I think it is a great starting point for web application security.

The team behind it is the same that is behind the Burpsuite and the famous Web Application Hackers Handbook (consider buying it if you want to go deeper into the topic):

The Web Application Hackers Handbook
Authors: Daffy Stuttard, Marcus Pinto
Content: The standard book about hacking Web Applications, goes into depth about the most important topics. Authors also created the BurpSuit.
Career: Penetration Tester
Level: Good for beginners, but also useful for experienced penetration testers
Buy at Amazon U.S.
Buy at Amazon Germany