# CVE-2001-0688: Denial of service in n/a

> Remote attackers can crash Broker FTP Server by repeatedly sending invalid CD commands, causing a denial of service.

- **Severity:** Medium 5.0 (`AV:N/AC:L/Au:N/C:N/I:N/A:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 29 Aug 2001
- **Updated:** 8 Aug 2024
- **Also known as:** GHSA-wpp7-4crq-f956

## What is CVE-2001-0688?

CVE-2001-0688 is a medium-severity denial of service vulnerability in n/a, published on 29 Aug 2001. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Broker FTP Server 5.9.5.0 allows a remote attacker to cause a denial of service by repeatedly issuing an invalid CD or CWD ("CD . .") command.

## Which versions are affected by CVE-2001-0688?

It affects 1 product.


Products: Transsoft Broker Ftp Server.

## How do I fix CVE-2001-0688?

No fix has been published for CVE-2001-0688 yet. Limit exposure of the affected software until one is available.

## Is CVE-2001-0688 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2001-0688 exists.

Public exploit code:

- TransSoft Broker FTP Server 3.0/4.0/4.7/5.x - CWD Buffer Overflow (exploitdb)

## Other vulnerabilities in n/a

- [CVE-2002-0405](https://insights.sbomify.com/CVE-2002-0405/): Memory corruption in n/a (critical 10.0)
- [CVE-2001-1042](https://insights.sbomify.com/CVE-2001-1042/): Path traversal in n/a (high 7.5)
- [CVE-2000-1116](https://insights.sbomify.com/CVE-2000-1116/): Memory corruption in n/a (high 7.5)
- [CVE-2001-0450](https://insights.sbomify.com/CVE-2001-0450/): Path traversal in n/a (medium 6.4)
- [CVE-2004-0295](https://insights.sbomify.com/CVE-2004-0295/): Denial of service in n/a (medium 5.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2001-0688 and fix it if it is affected.

What it is: CVE-2001-0688 is a medium-severity denial of service vulnerability in n/a, published on 29 Aug 2001. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2001-0688 exists.

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-2001-0688/ (Markdown: https://insights.sbomify.com/CVE-2001-0688/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2001-0688
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2001-0688
- OSV: https://osv.dev/vulnerability/CVE-2001-0688

---
From sbomify Insights: https://insights.sbomify.com/CVE-2001-0688/
Summaries are generated and may contain mistakes; the official description above is the record.