# CVE-2008-4247: Cross-site request forgery in n/a

> Remote attackers can execute arbitrary FTP commands via CSRF by exploiting long command interpretation in FTP servers, requiring user interaction with a malicious URI.

- **Severity:** High 7.5 (`AV:N/AC:L/Au:N/C:P/I:P/A:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 25 Sep 2008
- **Updated:** 7 Aug 2024
- **Also known as:** DEBIAN-CVE-2008-4247, GHSA-px9q-8f7r-rv49

## What is CVE-2008-4247?

CVE-2008-4247 is a high-severity vulnerability in Freebsd Freebsd, published on 25 Sep 2008. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

ftpd in OpenBSD 4.3, FreeBSD 7.0, NetBSD 4.0, Solaris, and possibly other operating systems interprets long commands from an FTP client as multiple commands, which allows remote attackers to conduct cross-site request forgery (CSRF) attacks and execute arbitrary FTP commands via a long ftp:// URI that leverages an existing session from the FTP client implementation in a web browser.

Weakness: CWE-352 (Cross-Site Request Forgery)

## Which versions are affected by CVE-2008-4247?

It affects 3 products.


Products: Freebsd Freebsd, Netbsd Netbsd, Openbsd Openbsd.

## How do I fix CVE-2008-4247?

Apply the vendor's patch.

## Is CVE-2008-4247 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2008-4247 exists.

Public exploit code:

- Multiple Vendor FTP Server - Long Command Handling Security (exploitdb)

## Other vulnerabilities in Freebsd Freebsd

- [CVE-2018-17160](https://insights.sbomify.com/CVE-2018-17160/): Memory corruption in FreeBSD (critical 10.0)
- [CVE-2014-3954](https://insights.sbomify.com/CVE-2014-3954/): Memory corruption in n/a (critical 10.0)
- [CVE-2006-4304](https://insights.sbomify.com/CVE-2006-4304/): Memory corruption in n/a (critical 10.0)
- [CVE-2006-0226](https://insights.sbomify.com/CVE-2006-0226/): Integer overflow in n/a (critical 10.0)
- [CVE-2004-0002](https://insights.sbomify.com/CVE-2004-0002/): Denial of service in n/a (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2008-4247 and fix it if it is affected.

What it is: CVE-2008-4247 is a high-severity vulnerability in Freebsd Freebsd, published on 25 Sep 2008. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2008-4247 exists.

Affected product: Freebsd Freebsd. 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-2008-4247/ (Markdown: https://insights.sbomify.com/CVE-2008-4247/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2008-4247
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2008-4247
- OSV: https://osv.dev/vulnerability/CVE-2008-4247

---
From sbomify Insights: https://insights.sbomify.com/CVE-2008-4247/
Summaries are generated and may contain mistakes; the official description above is the record.