CVE-2020-2301
CRITICAL9.8EPSS 0.18%Authentication cache in Active Directory Jenkins Plugin allows logging in with any password
Description
Jenkins Active Directory Plugin implements two separate modes: Integration with ADSI on Windows, and an OS agnostic LDAP-based mode. Optionally, to reduce lookup time, a cache can be configured to remember user lookups and user authentications. In Active Directory Plugin prior to 2.20 and 2.16.1, when run in Windows/ADSI mode, the provided password was not used when looking up an applicable cache entry. This allows attackers to log in as any user using any password while a successful authentication of that user is still in the cache. As a workaround for this issue, the cache can be disabled. Active Directory Plugin 2.20 and 2.16.1 includes the provided password in cache entry lookup. Additionally, the Java system property `hudson.plugins.active_directory.CacheUtil.noCacheAuth` can be set to `true` to no longer cache user authentications.
Affected packages (1)
- Maven/org.jenkins-ci.plugins:active-directory>= 2.17, < 2.20
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
References (5)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2020-2301
- PATCHhttps://github.com/jenkinsci/active-directory-plugin
- WEBhttps://github.com/CVEProject/cvelist/blob/381fe967666a5ce01625a7a050427aa4757e3ca6/2020/2xxx/CVE-2020-2301.json
- WEBhttps://github.com/jenkinsci/active-directory-plugin/commit/57e78ea7bb96b4e59405f28959ade2d26821163d
- WEBhttps://www.jenkins.io/security/advisory/2020-11-04/#SECURITY-2123