CVE-2017-1000091: CSRF
GitHub Branch Source Plugin connects to a user-specified GitHub API URL (e.g. GitHub Enterprise) as part of form validation and completion (e.g. to verify Scan Credentials are correct). This functionality improperly checked permissions, allowing any user with Overall/Read access to Jenkins to connect to any web server and send credentials with a known ID, thereby possibly capturing them. Additionally, this functionality did not require POST requests be used, thereby allowing the above to be performed without direct access to Jenkins via Cross-Site Request Forgery.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2017-1000091?
CVE-2017-1000091 has a medium severity level due to improper permission checks in Jenkins.
How do I fix CVE-2017-1000091?
To fix CVE-2017-1000091, update the GitHub Branch Source plugin to the latest version that contains the necessary security patches.
Who is affected by CVE-2017-1000091?
Any user with Overall/Read access to Jenkins can potentially exploit the vulnerability in CVE-2017-1000091.
What versions of Jenkins are impacted by CVE-2017-1000091?
CVE-2017-1000091 affects multiple versions of the GitHub Branch Source plugin, specifically those before the fixed versions.
What is the nature of the vulnerability in CVE-2017-1000091?
CVE-2017-1000091 involves improper permission checks allowing unauthorized access to the GitHub API for users with minimal privileges.