Exercises

Exercise Avg. Time Difficulty Solved by Tier
OAuth2: Client OpenRedirect
This exercise covers the exploitation of an OpenRedirect in an OAuth2 Client
< 1 Hr. medium 860 PRO
CVE-2019-5420
This exercise details the exploitation of CVE-2019-5420 to forge a session as another user
2-4 Hr. medium 939 PRO
GraphQL: SQL Injection
This exercise covers how to use introspection and a SQL injection to get access to additional information in GraphQL.
1-2 Hr. medium 1518 PRO
OAuth2: Authorization Server OpenRedirect
This exercise covers the exploitation of an OpenRedirect in an OAuth2 Authorization Server
< 1 Hr. medium 972 PRO
SAML: Signature Stripping
This exercise covers the exploitation of a signature stripping vulnerability in SAML
< 1 Hr. medium 2176 PRO
Android 05
This exercise will guide you through the process of reversing a simple obfuscated Android code to recover the encrypted data
1-2 Hr. medium 2071 PRO
Ruby 2.x Universal RCE Deserialization Gadget Chain
This exercise covers how to get code execution by using a Ruby Universal Gadget when an attacker controls the data passed to Marshal.load()
< 1 Hr. medium 1450 PRO
CVE-2018-10933: LibSSH auth bypass
This exercise covers how to bypass authentication on an SSH server based on libssh to gain a shell on the affected system
-- medium 0 FREE
Android 04
This exercise will guide you through the process of reversing a simple Android code
< 1 Hr. medium 2617 PRO
Android 03
This exercise will guide you through the process of extracting simple information from an APK
< 1 Hr. medium 3460 PRO
Introduction to CSP
This exercise details the exploitation of a XSS in a simple web application that uses Content Security Policy
< 1 Hr. medium 2560 PRO
Git Information Leak II
This exercise details how to retrieve information from an exposed .git directory on a web server, provided directory listing is disabled
< 1 Hr. medium 2668 PRO
CVE-2016-5386: HTTPoxy/Golang HTTProxy namespace conflict
This exercise covers the exploitation of HTTPoxy against an old version of Golang
< 1 Hr. medium 952 PRO
Unix 31
This exercise is one of our challenges to help you learn more about Unix/Linux
< 1 Hr. medium 14335 PRO
Unix 30
This exercise is one of our challenges to help you learn more about Unix/Linux
< 1 Hr. medium 14362 PRO
CBC-MAC II Crypto
This exercise covers the exploitation of an application using CBC-MAC when an attacker has control over the IV
1-2 Hr. medium 1790 PRO
JWT VI JWT
This exercise covers the exploitation of an injection in the kid element of a JWT. This injection can be used to bypass the signature mechanism
< 1 Hr. medium 2637 PRO
CVE-2018-6574: go get RCE
This exercise covers a remote command execution in Golang's go get command.
< 1 Hr. medium 921 PRO
Unix 15
This exercise is one of our challenges to help you learn more about Unix/Linux
< 1 Hr. medium 16641 PRO
Unix 20
This exercise is one of our challenges to help you learn more about Unix/Linux
< 1 Hr. medium 15294 PRO
JWT V JWT
This exercise covers the exploitation of a trivial secret used to sign JWT tokens.
< 1 Hr. medium 3205 PRO
JWT IV JWT
This exercise covers the exploitation of a vulnerability similar to the recent CVE-2017-17405 impacting Ruby Net::FTP
< 1 Hr. medium 2789 PRO
JWT kid Injection JWT
This exercise covers the exploitation of an issue in the usage of JWT token
1-2 Hr. medium 3016 PRO
Code Execution 09
This exercise is one of our challenges on Code Execution
< 1 Hr. medium 11103 PRO
Server Side Template Injection 02
This exercise is one of our challenges on Server-Side Template Injection
< 1 Hr. medium 8781 PRO
Authorization 06
This exercise is one of our challenges on Authorisation issues
< 1 Hr. medium 15254 PRO
Code Execution 08
This exercise is one of our challenges on Code Execution
< 1 Hr. medium 11200 PRO
Authorization 04
This exercise is one of our challenges on Authorisation issues
< 1 Hr. medium 16591 PRO
Authorization 05
This exercise is one of our challenges on Authorisation issues
< 1 Hr. medium 15883 PRO
Server Side Template Injection 01
This exercise is one of our challenges on Server-Side Template Injection
< 1 Hr. medium 8774 PRO
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Showing 181–210 of 262 exercises