GHSA-vq7j-6pcq-f48p

Path traversal vulnerability in Blue Ocean Plugin

Source: GitHub Advisory Database (reviewed) Moderate CVE-2020-2254

Packages

Ecosystem	Package	Affected	Fixed in
Maven	io.jenkins.blueocean:blueocean	< 1.23.3	1.23.3

Details

As written in the advisory (Markdown source, shown as plain text).

Blue Ocean Plugin 1.23.2 and earlier provides an undocumented feature flag, `blueocean.features.GIT_READ_SAVE_TYPE`, that when set to the value `clone` allows an attacker with Item/Configure or Item/Create permission to read arbitrary files on the Jenkins controller file system. Blue Ocean Plugin 1.23.3 no longer includes this feature and redirects existing usage to a safer alternative.

References

External links from the advisory. They lead to third-party sites.

https://nvd.nist.gov/vuln/detail/CVE-2020-2254 advisory
https://github.com/jenkinsci/blueocean-plugin/commit/f0dd4b68d62ac3c3c85012d6eb0c92bcebf85e12 web
https://github.com/jenkinsci/blueocean-plugin package
https://www.jenkins.io/security/advisory/2020-09-16/#SECURITY-1956 web
http://www.openwall.com/lists/oss-security/2020/09/16/3 web