# CVE-2021-37130: Path traversal in FusionCube

> Attackers can access files outside restricted directories via crafted filenames in Huawei FusionCube, potentially exposing sensitive data.

- **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:** No
- **Published:** 27 Oct 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-5f94-pgvg-m2ff

## What is CVE-2021-37130?

CVE-2021-37130 is a high-severity path traversal vulnerability in FusionCube, published on 27 Oct 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

There is a path traversal vulnerability in Huawei FusionCube 6.0.2.The vulnerability is due to that the software uses external input to construct a pathname that is intended to identify a directory that is located underneath a restricted parent directory, but the software does not properly validate the pathname. Successful exploit could allow the attacker to access a location that is outside of the restricted directory by a crafted filename.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2021-37130?

It affects 1 product.


Products: Huawei Fusioncube Firmware.

## How do I fix CVE-2021-37130?

No fix has been published for CVE-2021-37130 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-37130 being exploited?

There is no known exploitation of CVE-2021-37130 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-37130 and fix it if it is affected.

What it is: CVE-2021-37130 is a high-severity path traversal vulnerability in FusionCube, published on 27 Oct 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-2021-37130 in the wild and no public exploit code.

Affected product: FusionCube. 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-2021-37130/ (Markdown: https://insights.sbomify.com/CVE-2021-37130/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-37130
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-37130
- OSV: https://osv.dev/vulnerability/CVE-2021-37130

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-37130/
Summaries are generated and may contain mistakes; the official description above is the record.