# CVE-2020-2249: Credentials stored in plain text by Jenkins tfs Plugin

> Attackers with Jenkins controller file system access can read unencrypted webhook secrets stored in the Team Foundation Server Plugin configuration.

- **Severity:** Low 3.3 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 1 Sep 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-w6c2-jrhh-jrxg

## What is CVE-2020-2249?

CVE-2020-2249 is a low-severity vulnerability in Jenkins Team Foundation Server Plugin, published on 1 Sep 2020. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Jenkins Team Foundation Server Plugin 5.157.1 and earlier stores a webhook secret unencrypted in its global configuration file on the Jenkins controller where it can be viewed by attackers with access to the Jenkins controller file system.

Weakness: CWE-311 (Missing Encryption of Sensitive Data)

## Which versions are affected by CVE-2020-2249?

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


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `org.jenkins-ci.plugins:tfs` | Maven | All versions to 5.157.1 | None |
| `org.jenkins-ci.plugins:tfs` | Maven | All versions to 5.157.1 | None |

Products: Jenkins Team Foundation Server.

## How do I fix CVE-2020-2249?

No fix has been published for CVE-2020-2249 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-2249 being exploited?

There is no known exploitation of CVE-2020-2249 in the wild and no public exploit code.

## Other vulnerabilities in Jenkins Team Foundation Server Plugin

- [CVE-2021-21638](https://insights.sbomify.com/CVE-2021-21638/): CSRF vulnerability in Jenkins Team Foundation Server Plugin allow capturing credentials (high 8.8)
- [CVE-2021-21637](https://insights.sbomify.com/CVE-2021-21637/): Missing permission check in Jenkins Team Foundation Server Plugin allow capturing credentials (medium 6.5)
- [CVE-2021-21636](https://insights.sbomify.com/CVE-2021-21636/): Missing permission check in Jenkins Team Foundation Server Plugin allows enumerating credentials IDs (medium 4.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-2249 and fix it if it is affected.

What it is: CVE-2020-2249 is a low-severity vulnerability in Jenkins Team Foundation Server Plugin, published on 1 Sep 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-2249 in the wild and no public exploit code.

Affected packages and fixed versions:
- org.jenkins-ci.plugins:tfs (Maven): affected all versions up to 5.157.1; no fix listed
- org.jenkins-ci.plugins:tfs (Maven): affected all versions up to 5.157.1; no fix listed

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-2020-2249/ (Markdown: https://insights.sbomify.com/CVE-2020-2249/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-2249
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-2249
- OSV: https://osv.dev/vulnerability/CVE-2020-2249

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-2249/
Summaries are generated and may contain mistakes; the official description above is the record.