Description
The re-key admin monitor was introduced in Jenkins 1.498 and re-encrypted all secrets in JENKINS_HOME with a new key. It also created a backup directory with all old secrets, and the key used to encrypt them. These backups were world-readable and not removed afterwards. Jenkins now deletes the backup directory, if present. Upgrading from before 1.498 will no longer create a backup directory. Administrators relying on file access permissions in their manually created backups are advised to check them for the directory $JENKINS_HOME/jenkins.security.RekeySecretAdminMonitor/backups, and delete it if present.
Remediation
References
https://jenkins.io/security/advisory/2017-02-01/
Related Vulnerabilities
CVE-2012-2098 Vulnerability in maven package org.apache.commons:commons-compress
CVE-2020-2228 Vulnerability in maven package org.jenkins-ci.plugins:gitlab-oauth
CVE-2018-1999028 Vulnerability in maven package org.jenkins-ci.plugins:accurev
CVE-2023-32068 Vulnerability in maven package org.xwiki.platform:xwiki-platform-url-api
CVE-2023-50422 Vulnerability in maven package com.sap.cloud.security.xsuaa:spring-xsuaa