Exercises

Exercise Avg. Time Difficulty Solved by Tier
Authentication 01
This exercise is one of our challenges on Authentication issues
< 1 Hr. easy 20857 PRO
Authentication 02
This exercise is one of our challenges on Authentication issues
< 1 Hr. easy 19880 PRO
Authentication 03
This exercise is one of our challenges on Authentication issues
< 1 Hr. easy 19282 PRO
Authorization 01
This exercise is one of our challenges on Authorisation issues
< 1 Hr. easy 18379 PRO
Authorization 02
This exercise is one of our challenges on Authorisation issues
< 1 Hr. easy 17895 PRO
Code Execution 01
This exercise is one of our challenges on Code Execution
< 1 Hr. easy 15156 PRO
CVE-2016-10033: PHPMailer RCE
This exercise covers a remote code execution vulnerability in PHPMailer
< 1 Hr. medium 3855 PRO
Cipher block chaining Crypto
This exercise details how to tamper with data encrypted using CBC
< 1 Hr. medium 3034 PRO
Struts s2-045
This exercise covers a Remote Code Execution in Struts 2.
< 1 Hr. medium 2857 PRO
CVE-2016-2098
This exercise covers a remote code execution vulnerability in Ruby-on-Rails when using render on user-supplied data
< 1 Hr. medium 3763 PRO
CVE-2014-4511: Gitlist RCE
This exercise explains how you can exploit a vulnerability published in 2014 in Gitlist.
< 1 Hr. medium 19 FREE
ECDSA Crypto
This exercise covers the exploitation of a weakness in the usage of ECDSA
< 1 Hr. hard 375 PRO
Werkzeug DEBUG
This challenge was written for Ruxcon CTF 2015 and cover the Debug mode of Werkzeug/Flask
< 1 Hr. medium 1639 PRO
Padding Oracle
This exercise covers an attack against CBC mode. This attack can be used to decrypt data and re-encrypt arbitrary data
< 1 Hr. medium 861 FREE
Unickle
This challenge was written for Ruxcon CTF 2015. It's an SQL injection mixed with a remote code execution.
< 1 Hr. hard 691 PRO
CVE-2015-3224
This exercise is a challenge written for Nullcon CTF in 2015
< 1 Hr. medium 1649 PRO
Luhn
This challenge was written for Ruxcon CTF 2015. It's an SQL injection with a twist
< 1 Hr. hard 639 PRO
Introduction 00
This exercise will guide you through the process of scoring on an exercise to get it marked as completed
< 1 Hr. easy 32197 PRO
Introduction 01
This exercise will guide through the process of scoring an exercise to mark it as completed
< 1 Hr. easy 31107 PRO
Introduction 02
This exercise will guide through the process of scoring an exercise to mark it as completed. Finding the key is just a little bit harder than the previous exercise.
< 1 Hr. easy 30690 PRO
Introduction 03
This exercise will guide through the process of scoring an exercise to mark it as completed. However, this time, you will run commands on the underlying operating system. You will need to run the score command with your UUID.
< 1 Hr. easy 29969 PRO
CVE-2013-0156: Rails Object Injection
This exercise covers the exploitation of a code execution in Ruby-on-Rails using XML and YAML.
< 1 Hr. medium 4091 PRO
JWT Algorithm Confusion JWT
This exercise covers the exploitation of an issue with some implementations of JWT
< 1 Hr. medium 3911 PRO
CVE-2016-0792
This exercise covers the exploitation of an Xstream vulnerability in Jenkins
< 1 Hr. medium 4906 PRO
ObjectInputStream
This exercise covers the exploitation of a call to readObject in a Spring application
< 1 Hr. medium 4401 PRO
XMLDecoder
This exercise covers the exploitation of an application using XMLDecoder
< 1 Hr. medium 5506 PRO
CVE-2014-1266
This exercise covers how to intercept an HTTPs connection
< 1 Hr. hard 1082 PRO
CVE-2011-0228
This exercise covers how to intercept an HTTPs connection
< 1 Hr. hard 1236 PRO
Intercept 03
This exercise covers how to intercept an HTTPs connection with hostname verification.
< 1 Hr. medium 1518 PRO
Intercept 02
This exercise covers how to intercept an HTTPs connection.
< 1 Hr. medium 1673 PRO
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