Jenkins Active Directory Plugin 2.30 and earlier ignores the "Require TLS" and "StartTls"…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-311.
Summary
Jenkins Active Directory Plugin 2.30 and earlier ignores the "Require TLS" and "StartTls" options and always performs the connection test to Active directory unencrypted, allowing attackers able to capture network traffic between the Jenkins controller and Active Directory servers to obtain Active Directory credentials.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Jenkins | Jenkins Active Directory Plugin | up to 2.30 | — | No fix listed | CNA |
| — | org.jenkins-ci.plugins:active-directory (Maven) | before 2.30.1 | 2.30.1 | Patch available | GHSA-g8c3-6fj2-87w7 |
- Jenkins Active Directory Plugin VendorJenkins Affected up to 2.30 Fixed in — No fix listed CNA
- org.jenkins-ci.plugins:active-directory (Maven) Vendor— Affected before 2.30.1 Fixed in 2.30.1 Patch available GHSA-g8c3-6fj2-87w7
Remediation
- Fix · GHSA-g8c3-6fj2-87w7 org.jenkins-ci.plugins:active-directory (Maven) Fixed in 2.30.1 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2023-37943
- 2026-10-03 Alias added: GHSA-g8c3-6fj2-87w7
References
More Jenkins Active Directory vulnerabilities
- TI-2020-02178 Improper authentication in Jenkins Active Directory Plugin CVSS 3.1CRITICAL 9.8
- TI-2020-02177 Improper authentication in Jenkins Active Directory Plugin CVSS 3.1CRITICAL 9.8
- TI-2020-02176 Improper authentication in Jenkins Active Directory Plugin CVSS 3.1CRITICAL 9.8
- TI-2017-01899 Improper certificate validation in Jenkins Active Directory Jenkins plugin CVSS 3.0HIGH 8.1
- TI-2019-15854 Improper certificate validation in Jenkins Active Directory Plugin CVSS 3.0HIGH 7.4
- TI-2026-36178 Jenkins Active Directory Plugin 2.41 and earlier deserializes data from LDAP referrals without validation. CVSS 3.1MEDIUM 6.6
Sources
- CVE-2023-37943 · CVE Program
- CVE-2023-37943 · NVD
- FIRST EPSS
- GHSA-g8c3-6fj2-87w7 · GitHub Advisory Database · CC BY 4.0
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