🛡️ CVE-2020-2301 — active-directory

🔴 CVSS 9.5 — Critical ✅ No Known Exploit CWE-287 OSV
9.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

CVE-2020-2301 is classified as CWE-287: Improper Authentication. The identity of the caller is not established correctly, so an attacker can act as another user.

Affected software

CVE-2020-2301 is recorded against 1 package.

  • org.jenkins-ci.plugins:active-directory (fixed in 2.16.1)

Timeline and source

Published on 24 May 2022 and last revised on 16 February 2024. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

nvd.nist.gov (Advisory)
github.com (Web)
github.com (Web)
github.com (Package)
www.jenkins.io (Web)

Details

Severity CRITICAL
CVSS Score 9.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE CWE-287
Public Exploit ✅ No
Source OSV
Published 2022-05-24
Updated 2026-08-12
Modified 2024-02-16
Fix URL N/A

Affected Packages

Software From version Fixed in
org.jenkins-ci.plugins:active-directory — 2.16.1

Similar Threats

Exploit Protection

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