Info

Jenkins is a free and open source automation server. It helps automate the parts of software development related to building, testing, and deploying, facilitating continuous integration and continuous delivery.

See https://www.secwiki.cloud/devops-tools/jenkins

For more information

Enumeration

Jenkins run by default on port 8080

Exploitation

Basic command execution (Authenticated)

• Press 'Create a job'
• Choose a name and Create new freestyle project
• In the build section press Execute shell
• Enter the command you would like (based on OS)
• Press 'Save'
• On the project dashboard go to Build now (If this is not present see alternative ways to execute below)
• Press the newly created number under 'Build History'
• Press Console houtput
• See output of the command.
• To execute a different command press 'back to project' and then 'configure'

Groovy Script