CVE-2023-37943
Jenkins Active Directory Plugin vulnerable to Active Directory credential disclosure
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2023-37943- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-311
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2023-37943- Updated
- 2026-11-02
EUVDEUVD-2023-2055
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.
- Record
EUVD-2023-2055- CVSS
- 0.0 None
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-g8c3-6fj2-87w7
Jenkins Active Directory Plugin vulnerable to Active Directory credential disclosure
Jenkins Active Directory Plugin allows testing a new, unsaved configuration by performing a connection test (the button labeled "Test Domain").
Active Directory Plugin 2.30 and earlier ignores the "Require TLS" and "StartTls" options and always performs the connection test to Active directory unencrypted. This allows attackers able to capture network traffic between the Jenkins controller and Active Directory servers to obtain Active Directory credentials.
This only affects the connection test. Connections established during the login process are encrypted if the corresponding TLS option is enabled.
Active Directory Plugin 2.30.1 considers the "Require TLS" and "StartTls" options for connection tests.
- Record
GHSA-g8c3-6fj2-87w7- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-311
- Updated
- 2026-11-02
OSV
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.
- Record
CVE-2023-37943- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
OSVGHSA-g8c3-6fj2-87w7
Jenkins Active Directory Plugin vulnerable to Active Directory credential disclosure
Jenkins Active Directory Plugin allows testing a new, unsaved configuration by performing a connection test (the button labeled "Test Domain").
Active Directory Plugin 2.30 and earlier ignores the "Require TLS" and "StartTls" options and always performs the connection test to Active directory unencrypted. This allows attackers able to capture network traffic between the Jenkins controller and Active Directory servers to obtain Active Directory credentials.
This only affects the connection test. Connections established during the login process are encrypted if the corresponding TLS option is enabled.
Active Directory Plugin 2.30.1 considers the "Require TLS" and "StartTls" options for connection tests.
- Record
GHSA-g8c3-6fj2-87w7- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-311
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
org.jenkins-ci.plugins:active-directoryMaven |
before 2.30.1 | 2.30.1 |
org.jenkins-ci.plugins:active-directoryMaven |
before 2.30.1, plus listed versions 1.181.191.201.211.22 Show 45 moreShow less1.231.241.251.261.271.281.291.301.311.321.331.341.351.361.371.381.391.411.421.431.441.451.461.471.481.492.02.12.102.112.122.132.142.152.162.16.12.172.182.192.22.202.222.232.23.12.24 |
2.30.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-37943 is a medium vulnerability (CVSS 5.9) in Jenkins Active Directory, published July 12, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.46%, the 40th percentile. Fixed in org.jenkins-ci.plugins:active-directory 2.30.1.
References
Left out here: 15 versions. The JSON record has them.