# CVE-2024-0323: FTP uses unsecure encryption mechanisms

> Attackers can decrypt communications or perform man-in-the-middle attacks due to support for obsolete encryption protocols in the FTP server.

- **Severity:** Critical 9.8 (`CVSS:3.1/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 Feb 2024
- **Updated:** 6 Sep 2024
- **Also known as:** GHSA-4v2m-666w-ffm3

## What is CVE-2024-0323?

CVE-2024-0323 is a critical vulnerability in B&R Industrial Automation Automation Runtime, published on 5 Feb 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The FTP server used on the B&R
Automation Runtime supports unsecure encryption mechanisms, such as SSLv3,
TLSv1.0 and TLS1.1. An network-based attacker can exploit the flaws to conduct
man-in-the-middle attacks or to decrypt communications between the affected product
clients.

Weakness: CWE-1240 (Use of a Cryptographic Primitive with a Risky Implementation)

## Which versions are affected by CVE-2024-0323?

It affects 1 product.


Products: Br-Automation Automation Runtime.

## How do I fix CVE-2024-0323?

No fix has been published for CVE-2024-0323 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-0323 being exploited?

There is no known exploitation of CVE-2024-0323 in the wild and no public exploit code.

## Other vulnerabilities in B&R Industrial Automation Automation Runtime

- [CVE-2019-19108](https://insights.sbomify.com/CVE-2019-19108/): B&R Automation Runtime SNMP Authentication and Authorization Weakness (critical 9.4)
- [CVE-2023-3242](https://insights.sbomify.com/CVE-2023-3242/): Denial of service in B&R Automation Runtime (high 8.6)
- [CVE-2021-22275](https://insights.sbomify.com/CVE-2021-22275/): Denial of service vulnerability on Automation Runtime webserver (high 8.6)
- [CVE-2024-5800](https://insights.sbomify.com/CVE-2024-5800/): Diffie-Hellman groups with insufficient strength used in SSL/TLS stack of B&R Automation Runtime (high 8.3)
- [CVE-2023-6028](https://insights.sbomify.com/CVE-2023-6028/): SDM Web interface vulnerable to XSS (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-0323 and fix it if it is affected.

What it is: CVE-2024-0323 is a critical vulnerability in B&R Industrial Automation Automation Runtime, published on 5 Feb 2024. 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-2024-0323 in the wild and no public exploit code.

Affected product: B&R Industrial Automation Automation Runtime. 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-2024-0323/ (Markdown: https://insights.sbomify.com/CVE-2024-0323/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-0323
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-0323
- OSV: https://osv.dev/vulnerability/CVE-2024-0323

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-0323/
Summaries are generated and may contain mistakes; the official description above is the record.