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Appam plugin

Introduction

This plugin is only meant for security training. It should not be put used in any production system. It voluntarily contains several vulnerabilities.

Getting started

To run directly the plugin: mvn hpi:run.

Otherwise, you can compile is using mvn package and then install it on a running Jenkins instance.

Name history

This repository is the 2024 edition of the sister repository: https://github.com/Wadeck/emmenthal-plugin.

As this is used as a workshop in India, the name was adjusted to something in the indian cuisine that has holes.

The appam is a type of thin pancake originating from South India and Sri Lanka. It is made with fermented rice batter and coconut milk.

Appam

Topics

Level 1: Missing permission

Reference: https://owasp.org/Top10/A01_2021-Broken_Access_Control/ Jenkins documentation: https://www.jenkins.io/doc/developer/security/#what-do-plugins-need-to-do-to-protect-web-methods

  • missing
  • incorrect
  • wrong scope

Level 2: Cross-site Request Forgery (CSRF)

Reference: https://owasp.org/www-community/attacks/csrf

Level 3: Cross-site Scripting (XSS)

Reference: https://owasp.org/www-community/attacks/xss/ Jenkins documentation: https://www.jenkins.io/doc/developer/security/xss-prevention/

  • stored
  • reflected

Level 4: XML External Entity (XXE)

Reference: https://owasp.org/www-community/vulnerabilities/XML_External_Entity_(XXE)_Processing

  • SSRF
  • secrets theft

Level 5: Path Traversal

Reference: https://owasp.org/www-community/attacks/Path_Traversal

  • arbitrary file read

Level 6: Improper Secret Storage

Reference: https://cheatsheetseries.owasp.org/cheatsheets/Secrets_Management_Cheat_Sheet.html Jenkins documentation: https://www.jenkins.io/doc/developer/security/secrets/

  • plain text (any)
  • hashed (password)
  • encrypted (token)
  • timing attack

Level 7: Deny of Service (DoS)

Reference: https://owasp.org/www-community/attacks/Denial_of_Service

  • recursive calls
  • regex based

Level 8: Open Redirect

Reference: https://cheatsheetseries.owasp.org/cheatsheets/Unvalidated_Redirects_and_Forwards_Cheat_Sheet.html

Level 9: Incorrect Usage of Credentials

Jenkins documentation: https://github.com/jenkinsci/credentials-plugin/blob/master/docs/consumer.adoc

  • incorrect scope (system vs global)
  • credentials enumeration
  • credentials theft