Job Import Cross-Site Request Forgery

A data modification vulnerability exists in Jenkins Job Import Plugin 3.0 and earlier in JobImportAction.java that allows attackers to copy jobs from a preconfigured other Jenkins instance, potentially installing additional plugins necessary to load the imported job's configuration. (2019-02-06, CVE-2019-1003017)

An exposure of sensitive information vulnerability exists in Jenkins Job Import Plugin 2.1 and earlier in src/main/java/org/jenkins/ci/plugins/jobimport/JobImportAction.java, src/main/java/org/jenkins/ci/plugins/jobimport/JobImportGlobalConfig.java, src/main/java/org/jenkins/ci/plugins/jobimport/model/JenkinsSite.java that allows attackers with Overall/Read permission to have Jenkins connect to an attacker-specified URL using attacker-specified credentials IDs obtained through another method, capturing credentials stored in Jenkins. (2019-02-06, CVE-2019-1003016)

The absence of Anti-CSRF tokens may lead to a Cross-Site Request Forgery attack that can result in executing a specific application action as another logged in user, e.g. steal their account by changing their email and password or silently adding a new admin user account when executed from the administrator account.

The attacker may copy one of your web application forms, e.g. email/password change form.

The webpage will contain a form with the exact set of fields as the original application but with input values already provided and the submit button replaced with a Javascript code causing auto-submission. When the page is accessed the form will be immediately submitted and page contents replaced with a valid content or a redirect to your original application.

One of your application users who is already logged in can be then tricked to navigate to such malicious page e.g. by clicking a link in a phishing email, and the pre-populated form content will be submitted to your application like it would be submitted by your user.