# CVE-2017-6367: Denial of service in n/a

> A crafted HTTP request with specific headers crashes the Cerberus FTP Server service, causing a denial of service.

- **Severity:** High 7.5 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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:** 14 Mar 2017
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-gpc7-cph4-jx4r

## What is CVE-2017-6367?

CVE-2017-6367 is a high-severity denial of service vulnerability in n/a, published on 14 Mar 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

In Cerberus FTP Server 8.0.10.1, a crafted HTTP request causes the Windows service to crash. The attack methodology involves a long Host header and an invalid Content-Length header.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2017-6367?

It affects 1 product.


Products: Cerberusftp Ftp Server.

## How do I fix CVE-2017-6367?

No fix has been published for CVE-2017-6367 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-6367 being exploited?

There is no known exploitation of CVE-2017-6367 in the wild and no public exploit code.

Public exploit code:

- Cerberus FTP Server 8.0.10.1 - Denial of Service (exploitdb)

## Other vulnerabilities in n/a

- [CVE-2020-5196](https://insights.sbomify.com/CVE-2020-5196/): Missing authorization in n/a (high 8.1)
- [CVE-2026-6265](https://insights.sbomify.com/CVE-2026-6265/): Local Privilege Escalation in Cerberus FTP Server =< 2025.4.2 (high 7.3)
- [CVE-2012-2999](https://insights.sbomify.com/CVE-2012-2999/): Cross-site request forgery in n/a (medium 6.8)
- [CVE-2019-25046](https://insights.sbomify.com/CVE-2019-25046/): Cross-site scripting in n/a (medium 6.1)
- [CVE-2020-5195](https://insights.sbomify.com/CVE-2020-5195/): Cross-site scripting in n/a (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-6367 and fix it if it is affected.

What it is: CVE-2017-6367 is a high-severity denial of service vulnerability in n/a, published on 14 Mar 2017. 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-2017-6367 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-2017-6367/ (Markdown: https://insights.sbomify.com/CVE-2017-6367/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-6367
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-6367
- OSV: https://osv.dev/vulnerability/CVE-2017-6367

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-6367/
Summaries are generated and may contain mistakes; the official description above is the record.