Exercises

Exercise Avg. Time Difficulty Solved by Tier
Recon 16
In this challenge, you need to find the version of Bind used
< 1 Hr. medium 5712 FREE
EDDSA vulnerability in Monocypher Crypto
This exercise covers the exploitation of a vulnerability impacting Monocypher.
< 1 Hr. medium 191 PRO
Code Review 11
This exercise is one of our challenges to help you learn how to review real source code
2-4 Hr. hard 380 PRO
OAuth2: Predictable State
This exercise covers the exploitation of a predictable state in an OAuth2 Client
2-4 Hr. hard 302 PRO
Code Review 10
This exercise is one of our challenges to help you learn how to review real source code
< 1 Hr. medium 489 PRO
Recon 11
< 1 Hr. easy 6207 FREE
Recon 12
< 1 Hr. easy 6771 FREE
Unicode and NFKC
This exercise covers how to leverage unicode to exploit a directory traversal
< 1 Hr. medium 328 PRO
SAML: Trusted Embedded Key
This exercise covers the exploitation of a Service Provider (SP) that doesn't check the certificate provided in the SAMLResponse
< 1 Hr. medium 536 PRO
Recon 06
This exercise covers default vhost
< 1 Hr. easy 12089 FREE
Recon 07
This exercise covers default TLS vhost
< 1 Hr. easy 10989 FREE
Recon 08
This exercise covers aliases in TLS certificates
< 1 Hr. medium 9971 FREE
Recon 09
< 1 Hr. easy 10611 FREE
CVE-2020-8163: Rails local name RCE
This exercise details the exploitation of CVE-2020-8163 to gain code execution
1-2 Hr. hard 230 PRO
SAML: Known Key
This exercise covers the exploitation of a known key in SAML
1-2 Hr. medium 550 PRO
Code Review 09
This exercise is one of our challenges to help you learn how to review real source code
1-2 Hr. hard 421 PRO
Recon 04
This exercise covers common interesting directories
< 1 Hr. medium 16940 FREE
Recon 05
This exercise covers simple directory bruteforcing
< 1 Hr. medium 12369 FREE
Recon 01
This exercise covers 404 error pages
< 1 Hr. medium 22219 FREE
OAuth2: Client Server XSS
This exercise covers the exploitation of a Cross-Site Scripting in an OAuth2 Client and Server
1-2 Hr. hard 381 PRO
Zip symlink
This exercise covers how you can create a malicious Zip file and use it to gain access to sensitive files.
< 1 Hr. medium 603 PRO
Code Review 08
This exercise is one of our challenges to help you learn how to review real source code
1-2 Hr. easy 534 PRO
SAML: Comment Injection
This exercise covers the exploitation of a comment injection vulnerability in SAML
< 1 Hr. medium 1742 PRO
Unicode and Downcase
This exercise covers how you can use unicode to gain access to an admin account.
< 1 Hr. medium 610 PRO
Code Review 07
This exercise is one of our challenges to help you learn how to review real source code
1-2 Hr. hard 447 PRO
Recon 10
This exercise covers visual content discovery
< 1 Hr. medium 6779 FREE
Recon 00
This exercise covers the robots.txt file
< 1 Hr. easy 22215 FREE
Recon 02
This exercise covers the security.txt file
< 1 Hr. easy 18739 FREE
Recon 03
This exercise covers directory listing
< 1 Hr. easy 16793 FREE
Java Serialize 01
This exercise is one of our challenges to help you learn Java Serialisation exploitation
< 1 Hr. easy 441 PRO
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Showing 451–480 of 734 exercises