Ecosyste.ms: Advisories

Security Advisories: GSA_kwCzR0hTQS05NTRmLXh3NDQtNTZyMs4AAmgB

Authentication cache in Active Directory Jenkins Plugin allows logging in with any password

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.

Permalink: https://github.com/advisories/GHSA-954f-xw44-56r2
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS05NTRmLXh3NDQtNTZyMs4AAmgB
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Critical
Classification: General
Published: almost 2 years ago
Updated: 4 months ago

CVSS Score: 9.8
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Identifiers: GHSA-954f-xw44-56r2, CVE-2020-2301
References:

• https://nvd.nist.gov/vuln/detail/CVE-2020-2301
• https://www.jenkins.io/security/advisory/2020-11-04/#SECURITY-2123
• https://github.com/CVEProject/cvelist/blob/381fe967666a5ce01625a7a050427aa4757e3ca6/2020/2xxx/CVE-2020-2301.json
• https://github.com/jenkinsci/active-directory-plugin/commit/57e78ea7bb96b4e59405f28959ade2d26821163d
• https://github.com/advisories/GHSA-954f-xw44-56r2

Repository: https://github.com/CVEProject/cvelist
Blast Radius: 1.0

Affected Packages