Auth bypass in Jenkins Blue Ocean

CVE-2017-1000110

Blue Ocean allows the creation of GitHub organization folders that are set up to scan a GitHub organization for repositories and branches containing a Jenkinsfile, and create corresponding pipelines in Jenkins. It did not properly check the current user's authentication and authorization when configuring existing GitHub organization folders. This allowed users with read access to the GitHub organization folder to reconfigure it, including changing the GitHub API endpoint for the organization folder to an attacker-controlled server to obtain the GitHub access token, if the organization folder was initially created using Blue Ocean.

Vulnerability class: Broken Authentication

EPSS: 0.007 (50.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2017-1000110?
CVE-2017-1000110 is a medium-severity vulnerability in Jenkins Blue Ocean, classified under Improper Authentication. CVSS score: 4.3/10. Published 2017-10-05.
How severe is CVE-2017-1000110?
Medium severity. CVSS v3 base score is 4.3 out of 10.