# CVE-2019-12971: File upload in n/a

> Attackers can upload dangerous files to the BKS EBK Ethernet-Buskoppler Pro, potentially leading to code execution on the industrial control device.

- **Severity:** Critical 9.8 (`CVSS:3.0/AV:N/AC:L/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:** 5 Jul 2019
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-6v6j-xrh5-7gqg

## What is CVE-2019-12971?

CVE-2019-12971 is a critical vulnerability in n/a, published on 5 Jul 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

BKS EBK Ethernet-Buskoppler Pro before 3.01 allows Unrestricted Upload of a File with a Dangerous Type.

Weakness: CWE-434 (Unrestricted Upload of File with Dangerous Type)

## Which versions are affected by CVE-2019-12971?

It affects 1 product.


Products: G-U Bks Ebk Ethernet-Buskoppler Pro Firmware.

## How do I fix CVE-2019-12971?

No fix has been published for CVE-2019-12971 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-12971 being exploited?

There is no known exploitation of CVE-2019-12971 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-12971 and fix it if it is affected.

What it is: CVE-2019-12971 is a critical vulnerability in n/a, published on 5 Jul 2019. 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-2019-12971 in the wild and no public exploit code.

Affected product: n/a. 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-2019-12971/ (Markdown: https://insights.sbomify.com/CVE-2019-12971/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-12971
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-12971
- OSV: https://osv.dev/vulnerability/CVE-2019-12971

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-12971/
Summaries are generated and may contain mistakes; the official description above is the record.