Challenge Web & API Security +50 XP

Snapchat Exposed

Start the machine, hack the system, and find the hidden flags to complete this challenge and earn XP!

79% solve it 29 hackers played 1 flag Updated Oct 03, 2026 First blood 3xpl0it3r
JenkinsCI/CDDevOpsWeb SecurityPentestAutomation
Start Your Challenge
  1. 1Create a free account, then click "Start Lab"You'll get your own private machine with an IP address
  2. 2Explore the targetOpen the IP in your browser and look for vulnerabilities
  3. 3Find and submit flagsFlags are secret text strings hidden in the system - paste them below to score
  • ~1-2 min setup
  • Private instance
  • 30 min per session. Restart it for free, as often as you like.

CI/CD (Continuous Integration/Continuous Deployment) security is an increasingly critical area of cybersecurity as organizations adopt DevOps practices and automation pipelines. When CI/CD platforms like Jenkins are misconfigured or left exposed, they can provide attackers with a direct path to source code, credentials, production systems, and the entire software supply chain. Real-world bug bounty programs have paid significant rewards for exposed CI/CD vulnerabilities.

Jenkins and CI/CD Platform Security

Jenkins is one of the most widely used open-source automation servers, powering build, test, and deployment pipelines for organizations of all sizes. A Jenkins instance typically has access to source code repositories, deployment credentials, cloud provider API keys, and internal network resources. When a Jenkins server is exposed to the internet without proper authentication - or with default credentials - it represents an extremely high-value target. The Snapchat bug bounty program famously paid $20,000 for the discovery of an exposed Jenkins instance that could have led to arbitrary code execution.

Common CI/CD Vulnerabilities

CI/CD platforms present several common vulnerability patterns. Unauthenticated access to build server interfaces allows attackers to view build configurations, environment variables containing secrets, and build artifacts. Script consoles (like Jenkins' Groovy console) provide direct code execution capabilities on the server. Exposed API endpoints may allow triggering builds, modifying pipelines, or extracting credentials. Even when authentication is required, default credentials, weak passwords, and missing multi-factor authentication frequently leave these systems accessible to attackers.

Reconnaissance and Exploitation

Security researchers discover exposed CI/CD platforms through network scanning, subdomain enumeration, and analyzing publicly accessible infrastructure. Once found, the assessment involves enumerating available functionality, checking for unauthenticated access to sensitive endpoints, examining build configurations for leaked secrets, and testing for code execution capabilities. This type of vulnerability discovery is highly valued in bug bounty programs because the impact - access to production deployment pipelines and credentials - is typically critical.

What You Will Learn

  • Understand CI/CD platform security risks and common misconfiguration patterns
  • Learn network reconnaissance and service discovery techniques for DevOps infrastructure
  • Practice identifying exposed automation platforms and their security implications
  • Study real-world bug bounty scenarios involving CI/CD vulnerabilities
  • Develop skills for assessing automation platform security in professional engagements

Prerequisites

Basic networking and port scanning knowledge Understanding of web applications Familiarity with DevOps concepts and CI/CD pipelines