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.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-2254
Reference (s):
- https://www.jenkins.io/security/advisory/2020-09-16/#SECURITY-1956
- URL: https://www.jenkins.io/security/advisory/2020-09-16/#SECURITY-1956
- MLIST:[oss-security] 20200916 Multiple vulnerabilities in Jenkins plugins
- URL: http://www.openwall.com/lists/oss-security/2020/09/16/3