# CVE-2020-2119: Client secret transmitted in plain text by Azure AD Plugin

> Attackers can view Azure AD credentials in plain text via the Jenkins global configuration form, exposing sensitive authentication data.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 12 Feb 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-vvg2-hg3c-mqj3

## What is CVE-2020-2119?

CVE-2020-2119 is a medium-severity vulnerability in Jenkins Azure AD Plugin, published on 12 Feb 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Jenkins Azure AD Plugin 1.1.2 and earlier transmits configured credentials in plain text as part of the global Jenkins configuration form, potentially resulting in their exposure.

Weakness: CWE-522 (Insufficiently Protected Credentials)

## Which versions are affected by CVE-2020-2119?

2 open source packages ship an affected version, including org.jenkins-ci.plugins:azure-ad. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `org.jenkins-ci.plugins:azure-ad` | Maven | All versions | 1.2.0 |
| `org.jenkins-ci.plugins:azure-ad` | Maven | All versions | 1.2.0 |

Products: Jenkins Azure Ad.

## How do I fix CVE-2020-2119?

Upgrade org.jenkins-ci.plugins:azure-ad to 1.2.0 or later.

## Is CVE-2020-2119 being exploited?

There is no known exploitation of CVE-2020-2119 in the wild and no public exploit code.

## Other vulnerabilities in Jenkins Azure AD Plugin

- [CVE-2023-24426](https://insights.sbomify.com/CVE-2023-24426/): Insufficient Session Expiration in Jenkins Azure AD Plugin (high 8.8)
- [CVE-2021-21679](https://insights.sbomify.com/CVE-2021-21679/): Jenkins Azure AD Plugin allows bypassing CSRF protection for any URL (high 8.8)
- [CVE-2019-10318](https://insights.sbomify.com/CVE-2019-10318/): Jenkins Azure AD Plugin stored the client secret unencrypted (high 8.8)
- [CVE-2023-41935](https://insights.sbomify.com/CVE-2023-41935/): Non-constant time nonce comparison in Jenkins Microsoft Entra ID (previously Azure AD) Plugin (high 7.5)
- [CVE-2026-42525](https://insights.sbomify.com/CVE-2026-42525/): Jenkins Microsoft Entra ID (previously Azure AD) Plugin has an open redirect vulnerability (medium 4.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-2119 and fix it if it is affected.

What it is: CVE-2020-2119 is a medium-severity vulnerability in Jenkins Azure AD Plugin, published on 12 Feb 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-2119 in the wild and no public exploit code.

Affected packages and fixed versions:
- org.jenkins-ci.plugins:azure-ad (Maven): affected all versions; fixed in 1.2.0
- org.jenkins-ci.plugins:azure-ad (Maven): affected all versions; fixed in 1.2.0

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2020-2119/ (Markdown: https://insights.sbomify.com/CVE-2020-2119/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-2119
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-2119
- OSV: https://osv.dev/vulnerability/CVE-2020-2119

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-2119/
Summaries are generated and may contain mistakes; the official description above is the record.