Jenkins Active Directory Plugin 2.19 and earlier does not prohibit the use of an empty password in Windows/ADSI mode, which allows attackers to log in to Jenkins as any user depending on the configuration of the Active Directory server.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-2300
Reference (s):
- https://www.jenkins.io/security/advisory/2020-11-04/#SECURITY-2099
- URL: https://www.jenkins.io/security/advisory/2020-11-04/#SECURITY-2099
- MLIST:[oss-security] 20201104 Multiple vulnerabilities in Jenkins plugins
- URL: http://www.openwall.com/lists/oss-security/2020/11/04/6