Jenkins Users Exposure Scanner
This scanner detects the use of Jenkins Exposure in digital assets. It identifies issues that might allow for user enumeration by exposing user-related endpoint data.
Short Info
Level
Single Scan
Single Scan
Can be used by
Asset Owner
Estimated Time
10 seconds
Time Interval
19 days 3 hours
Scan only one
URL
Toolbox
Jenkins is a widely used automation server, primarily employed by developers and software teams for continuous integration and continuous delivery (CI/CD) automation in software development. It facilitates testing and deploying software projects, integrating various tools and technologies. With its robust plugin ecosystem, Jenkins can accommodate a wide range of development environments and operational setups. Its open-source nature and extensibility make it a popular choice among DevOps practitioners. Jenkins helps streamline development workflows, making it easier to automate repetitive tasks and ensure high software quality. Therefore, any vulnerabilities within Jenkins could potentially disrupt critical development pipelines.
This scanner focuses on detecting exposure in Jenkins configurations, particularly related to endpoints that disclose user information. Such exposures could allow unauthorized access to sensitive user data. The detection of these vulnerabilities is crucial to prevent unauthorized enumeration of users and their details. By identifying these weaknesses, organizations can better protect their software development environments. Jenkins' popularity in software automation makes it a prime target for malicious actors attempting to exploit these types of vulnerabilities. Ensuring that Jenkins instances are properly secured is vital to maintaining the integrity of the development process.
Technical details of the vulnerability involve exposed endpoints within Jenkins that allow user enumeration. Specifically, the scanner checks the `asynchPeople/api/json` endpoint, which, if exposed, can disclose sensitive user information. This endpoint returns data including usernames, full names, and profile URLs. The scanner evaluates the HTTP status code and checks for JSON content type, ensuring these identifiers are present in the response. Malicious actors could exploit these exposed details to gather information and potentially orchestrate further attacks.
If this user enumeration exposure is exploited, attackers could gather user details from Jenkins installations. This information might be utilized for social engineering attacks or to gain unauthorized access by discovering sensitive user data. Given Jenkins' integration with critical development processes, any breach could have significant disruptive effects on software production environments. Remediation is essential to safeguard against possible exploitation scenarios that might compromise user privacy and development continuity.
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