# CVE-2021-21643: Incorrect permission checks in Jenkins Config File Provider Plugin allow enumerating credentials IDs

> Attackers with Job/Configure permissions can enumerate system-scoped credential IDs in Jenkins Config File Provider Plugin.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 21 Apr 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-3m3f-2323-64m7

## What is CVE-2021-21643?

CVE-2021-21643 is a medium-severity vulnerability in Jenkins Config File Provider Plugin, published on 21 Apr 2021. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Jenkins Config File Provider Plugin 3.7.0 and earlier does not correctly perform permission checks in several HTTP endpoints, allowing attackers with global Job/Configure permission to enumerate system-scoped credentials IDs of credentials stored in Jenkins.

## Which versions are affected by CVE-2021-21643?

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 | 3.7.1 |
| `org.jenkins-ci.plugins:config-file-provider` | Maven | All versions | 3.7.1 |

Products: Jenkins Config File Provider.

## How do I fix CVE-2021-21643?

Upgrade org.jenkins-ci.plugins:config-file-provider to 3.7.1 or later.

## Is CVE-2021-21643 being exploited?

There is no known exploitation of CVE-2021-21643 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-2023-40339](https://insights.sbomify.com/CVE-2023-40339/): Jenkins Config File Provider Plugin improper credential masking vulnerability (high 7.5)
- [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-2021-21643 and fix it if it is affected.

What it is: CVE-2021-21643 is a medium-severity vulnerability in Jenkins Config File Provider Plugin, published on 21 Apr 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-21643 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 3.7.1
- org.jenkins-ci.plugins:config-file-provider (Maven): affected all versions; fixed in 3.7.1

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-2021-21643/ (Markdown: https://insights.sbomify.com/CVE-2021-21643/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-21643
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-21643
- OSV: https://osv.dev/vulnerability/CVE-2021-21643

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-21643/
Summaries are generated and may contain mistakes; the official description above is the record.