# CVE-2021-36335: Code injection in CloudLink

> A remote low-privileged attacker can exploit improper input validation to execute arbitrary files on Dell EMC CloudLink servers.

- **Severity:** Medium 4.3 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/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:** No
- **Published:** 23 Nov 2021
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-8gcx-vcr8-7vhv

## What is CVE-2021-36335?

CVE-2021-36335 is a medium-severity code injection vulnerability in Dell CloudLink, published on 23 Nov 2021. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Dell EMC CloudLink 7.1 and all prior versions contain an Improper Input Validation Vulnerability. A remote low privileged attacker, may potentially exploit this vulnerability, leading to execution of arbitrary files on the server

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2021-36335?

It affects 1 product.


Products: Dell Emc Cloud Link.

## How do I fix CVE-2021-36335?

No fix has been published for CVE-2021-36335 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-36335 being exploited?

There is no known exploitation of CVE-2021-36335 in the wild and no public exploit code.

## Other vulnerabilities in Dell CloudLink

- [CVE-2021-36314](https://insights.sbomify.com/CVE-2021-36314/): File upload in CloudLink (high 7.1)
- [CVE-2021-36334](https://insights.sbomify.com/CVE-2021-36334/): Code injection in CloudLink (medium 5.9)
- [CVE-2021-36333](https://insights.sbomify.com/CVE-2021-36333/): Memory corruption in CloudLink (medium 5.5)
- [CVE-2021-36332](https://insights.sbomify.com/CVE-2021-36332/): Open redirect in CloudLink (medium 5.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-36335 and fix it if it is affected.

What it is: CVE-2021-36335 is a medium-severity code injection vulnerability in Dell CloudLink, published on 23 Nov 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-2021-36335 in the wild and no public exploit code.

Affected product: Dell CloudLink. 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-2021-36335/ (Markdown: https://insights.sbomify.com/CVE-2021-36335/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-36335
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-36335
- OSV: https://osv.dev/vulnerability/CVE-2021-36335

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-36335/
Summaries are generated and may contain mistakes; the official description above is the record.