{"id":"CVE-2020-2300","aliases":["EUVD-2022-3251","GHSA-8wcw-cw2f-h4g2"],"status":"published","title":"Improper Authentication (empty password) in Jenkins Active Directory Plugin","description":"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.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01672,"percentile":0.76984,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-287"],"published":"2020-11-04T14:35:36Z","modified":"2026-10-24T10:30:58Z","fixes":[{"ecosystem":"Maven","package":"org.jenkins-ci.plugins:active-directory","fixed_in":["2.20","2.16.1"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Maven","package":"org.jenkins-ci.plugins:active-directory","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.17"},{"fixed":"2.20"}]}]},{"source":"ghsa","ecosystem":"Maven","package":"org.jenkins-ci.plugins:active-directory","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.16.1"}]}]},{"source":"osv","ecosystem":"Maven","package":"org.jenkins-ci.plugins:active-directory","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.17"},{"fixed":"2.20"}]}],"versions":["2.17","2.18","2.19"]},{"source":"osv","ecosystem":"Maven","package":"org.jenkins-ci.plugins:active-directory","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.16.1"}]}],"versions":["1.18","1.19","1.20","1.21","1.22","1.23","1.24","1.25","1.26","1.27","1.28","1.29","1.30","1.31","1.32","1.33","1.34","1.35","1.36","1.37","1.38","1.39","1.41","1.42","1.43","1.44","1.45","1.46","1.47","1.48","1.49","2.0","2.1","2.10","2.11","2.12","2.13","2.14","2.15","2.16","2.2","2.3","2.4","2.5","2.6","2.7","2.8","2.9"]}],"products":[{"vendor":"jenkins","product":"active_directory"},{"vendor":"jenkins project","product":"jenkins active directory plugin"}],"references":[{"url":"https://www.jenkins.io/security/advisory/2020-11-04/#SECURITY-2099","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory","web"]},{"url":"http://www.openwall.com/lists/oss-security/2020/11/04/6","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-2300","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelist/blob/381fe967666a5ce01625a7a050427aa4757e3ca6/2020/2xxx/CVE-2020-2300.json","tags":["web"]},{"url":"https://github.com/jenkinsci/active-directory-plugin/commit/57e78ea7bb96b4e59405f28959ade2d26821163d","tags":["web"]},{"url":"https://github.com/advisories/GHSA-8wcw-cw2f-h4g2"},{"url":"https://github.com/jenkinsci/active-directory-plugin","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2020-2300","description":"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.","status":"published","published":"2020-11-04T14:35:36Z","modified":"2024-08-04T07:09:53.284Z","updated_at":"2026-11-02T14:35:51.206854Z"}],"euvd":[{"id":"EUVD-2022-3251","description":"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.","status":"published","published":"2020-11-04T14:35:36Z","modified":"2024-08-04T07:09:53Z","updated_at":"2026-11-03T03:08:09.929524Z"}],"ghsa":[{"id":"GHSA-8wcw-cw2f-h4g2","title":"Improper Authentication (empty password) in Jenkins Active Directory Plugin","description":"Jenkins Active Directory Plugin implements two separate modes: Integration with ADSI on Windows, and an OS agnostic LDAP-based mode.\n\nThe Windows/ADSI mode does not specifically prohibit use of empty passwords in Active Directory Plugin prior to 2.20 and 2.16.1. If the Active Directory server allows the unauthenticated bind operation, this allows attackers to log in to Jenkins as any user by providing an empty password.\n\nJenkins Active Directory Plugin 2.20 and 2.16.1 prohibits the use of an empty password to log in.","status":"published","published":"2022-05-24T17:33:07Z","modified":"2023-12-20T14:32:31Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:37:27.414424Z"}],"nvd":[{"id":"CVE-2020-2300","description":"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.","status":"published","published":"2020-11-04T15:15:11.067Z","modified":"2026-06-17T03:12:10.287Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:06:21.80969Z"}],"osv":[{"id":"CVE-2020-2300","description":"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.","status":"published","published":"2020-11-04T15:15:11.067Z","modified":"2026-10-24T10:30:58.045749201Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:44:15.534837Z"},{"id":"GHSA-8wcw-cw2f-h4g2","title":"Improper Authentication (empty password) in Jenkins Active Directory Plugin","description":"Jenkins Active Directory Plugin implements two separate modes: Integration with ADSI on Windows, and an OS agnostic LDAP-based mode.\n\nThe Windows/ADSI mode does not specifically prohibit use of empty passwords in Active Directory Plugin prior to 2.20 and 2.16.1. If the Active Directory server allows the unauthenticated bind operation, this allows attackers to log in to Jenkins as any user by providing an empty password.\n\nJenkins Active Directory Plugin 2.20 and 2.16.1 prohibits the use of an empty password to log in.","status":"published","published":"2022-05-24T17:33:07Z","modified":"2024-02-16T08:15:42.020716Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T15:46:42.78452Z"}]}}