Description
Jenkins Blue Ocean Plugin 1.23.2 and earlier provides an undocumented feature flag that, when enabled, allows an attacker with Job/Configure or Job/Create permission to read arbitrary files on the Jenkins controller file system.
Remediation
References
http://www.openwall.com/lists/oss-security/2020/09/16/3
https://www.jenkins.io/security/advisory/2020-09-16/#SECURITY-1956
Related Vulnerabilities
CVE-2021-26117 Vulnerability in maven package org.apache.activemq:artemis-server
CVE-2021-31684 Vulnerability in maven package net.minidev:json-smart
CVE-2017-16201 Vulnerability in npm package zjjserver
CVE-2019-1003054 Vulnerability in maven package info.bluefloyd.jenkins:jenkins-jira-issue-updater