# CVE-2021-41034: Supply chain in Eclipse Che

> Attackers can replace binaries with malicious ones during Eclipse Che stack builds via MITM, leading to code execution in the development environment.

- **Severity:** High 8.1 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 29 Sep 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-cjjm-2hw2-c3jx

## What is CVE-2021-41034?

CVE-2021-41034 is a high-severity vulnerability in The Eclipse Foundation Eclipse Che, published on 29 Sep 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The build of some language stacks of Eclipse Che version 6 includes pulling some binaries from an unsecured HTTP endpoint. As a consequence the builds of such stacks are vulnerable to MITM attacks that allow the replacement of the original binaries with arbitrary ones. The stacks involved are Java 8 (alpine and centos), Android and PHP. The vulnerability is not exploitable at runtime but only when building Che.

Weakness: CWE-924 (Improper Enforcement of Message Integrity During Transmission in a Communication Channel)

## Which versions are affected by CVE-2021-41034?

It affects 1 product.


Products: Eclipse Che.

## How do I fix CVE-2021-41034?

No fix has been published for CVE-2021-41034 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-41034 being exploited?

There is no known exploitation of CVE-2021-41034 in the wild and no public exploit code.

## Other vulnerabilities in The Eclipse Foundation Eclipse Che

- [CVE-2019-17633](https://insights.sbomify.com/CVE-2019-17633/): Cross-site request forgery in Eclipse Che (high 8.8)
- [CVE-2020-14368](https://insights.sbomify.com/CVE-2020-14368/): Cross-site request forgery in eclipse (high 7.1)
- [CVE-2020-10689](https://insights.sbomify.com/CVE-2020-10689/): Missing Authorization in Eclipse Che (medium 6.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-41034 and fix it if it is affected.

What it is: CVE-2021-41034 is a high-severity vulnerability in The Eclipse Foundation Eclipse Che, published on 29 Sep 2021. 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-2021-41034 in the wild and no public exploit code.

Affected product: The Eclipse Foundation Eclipse Che. No package-level version data is available, so check the vendor advisory linked from the reference page.

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-2021-41034/ (Markdown: https://insights.sbomify.com/CVE-2021-41034/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-41034
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-41034
- OSV: https://osv.dev/vulnerability/CVE-2021-41034

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-41034/
Summaries are generated and may contain mistakes; the official description above is the record.