CVE-2020-2300
highpriority · track · 40EPSS 0.017 · 77 %ileEUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–9.8
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (4)
Products and version ranges known to be affected.
- Maven org.jenkins-ci.plugins:active-directory< 2.16.1osvUSpkg:maven/org.jenkins-ci.plugins/active-directory
- Maven org.jenkins-ci.plugins:active-directory2.17 → 2.20osvUSpkg:maven/org.jenkins-ci.plugins/active-directory
advisories (1)
Vendor and ecosystem advisories describing this.
- GHSA-8wcw-cw2f-h4g2Improper Authentication (empty password) in Jenkins Active Directory Plugin2022-05-24ghsa · osvUS
Jenkins Active Directory Plugin implements two separate modes: Integration with ADSI on Windows, and an OS agnostic LDAP-based mode. The 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. Jenkins Active Directory Plugin 2.20 and 2.16.1 prohibits the use of an empty password to log in.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (10)
External citations — patches, advisories, analysis.
- http://www.openwall.com/lists/oss-security/2020/11/04/6cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2020-2300cnnvd
- https://vigilance.fr/vulnerability/Jenkins-Plugins-multiple-vulnerabilities-33806cnnvd
- https://www.auscert.org.au/bulletins/ESB-2020.3904/cnnvd
- https://www.jenkins.io/security/advisory/2020-11-04/#SECURITY-2099cnnvd
- https://www.jenkins.io/security/advisory/2020-11-04/#SECURITY-2117Patchcnnvd
- http://www.openwall.com/lists/oss-security/2020/11/04/6enisa_euvd
- https://www.jenkins.io/security/advisory/2020-11-04/#SECURITY-2099enisa_euvd
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