CVE-2017-1000091: Cross-Site Request Forgery (CSRF)

October 5, 2017 (updated October 17, 2017)

GitHub Branch Source Plugin connects to a user-specified GitHub API URL as part of form validation and completion. 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.

References

jenkins.io/security/advisory/2017-07-10/
nvd.nist.gov/vuln/detail/CVE-2017-1000091

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