# CVE-2023-40339: Jenkins Config File Provider Plugin improper credential masking vulnerability

> Attackers can read sensitive credentials from build logs because the Jenkins Config File Provider Plugin fails to mask them.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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:** 16 Aug 2023
- **Updated:** 8 Oct 2024
- **Also known as:** GHSA-pv2g-vm98-vjxf

## What is CVE-2023-40339?

CVE-2023-40339 is a high-severity vulnerability in Jenkins Config File Provider Plugin, published on 16 Aug 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Jenkins Config File Provider Plugin 952.va_544a_6234b_46 and earlier does not mask (i.e., replace with asterisks) credentials specified in configuration files when they're written to the build log.

## Which versions are affected by CVE-2023-40339?

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


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `org.jenkins-ci.plugins:config-file-provider` | Maven | All versions | 953.v0432a |
| `org.jenkins-ci.plugins:config-file-provider` | Maven | All versions | 953.v0432a |

Products: Jenkins Config File Provider.

## How do I fix CVE-2023-40339?

Upgrade org.jenkins-ci.plugins:config-file-provider to 953.v0432a or later.

## Is CVE-2023-40339 being exploited?

There is no known exploitation of CVE-2023-40339 in the wild and no public exploit code.

## Other vulnerabilities in Jenkins Config File Provider Plugin

- [CVE-2021-21642](https://insights.sbomify.com/CVE-2021-21642/): XML External Entity Reference vulnerability in Jenkins Config File Provider Plugin (high 8.1)
- [CVE-2018-1000414](https://insights.sbomify.com/CVE-2018-1000414/): CSRF vulnerability in Config File Provider Plugin (high 8.1)
- [CVE-2021-21643](https://insights.sbomify.com/CVE-2021-21643/): Incorrect permission checks in Jenkins Config File Provider Plugin allow enumerating credentials IDs (medium 6.5)
- [CVE-2017-1000104](https://insights.sbomify.com/CVE-2017-1000104/): Improper Privilege Management in Jenkins Config File Provider Plugin (medium 6.5)
- [CVE-2021-21644](https://insights.sbomify.com/CVE-2021-21644/): CSRF vulnerability in Jenkins Config File Provider Plugin allows deleting configuration files (medium 5.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-40339 and fix it if it is affected.

What it is: CVE-2023-40339 is a high-severity vulnerability in Jenkins Config File Provider Plugin, published on 16 Aug 2023. 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-2023-40339 in the wild and no public exploit code.

Affected packages and fixed versions:
- org.jenkins-ci.plugins:config-file-provider (Maven): affected all versions; fixed in 953.v0432a
- org.jenkins-ci.plugins:config-file-provider (Maven): affected all versions; fixed in 953.v0432a

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-2023-40339/ (Markdown: https://insights.sbomify.com/CVE-2023-40339/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-40339
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-40339
- OSV: https://osv.dev/vulnerability/CVE-2023-40339

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-40339/
Summaries are generated and may contain mistakes; the official description above is the record.