# CVE-2020-12504: Pepperl+Fuchs improper authorization affects multiple Comtrol RocketLinx products

> Attackers can access the active TFTP service on Pepperl+Fuchs Comtrol RocketLinx switches without authentication, allowing unauthorized file transfer.

- **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:** 15 Oct 2020
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-66c6-xh5v-573q

## What is CVE-2020-12504?

CVE-2020-12504 is a critical missing authorization vulnerability in Korenix JetNet, published on 15 Oct 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Improper Authorization vulnerability of Pepperl+Fuchs P+F Comtrol RocketLinx ES7510-XT, ES8509-XT, ES8510-XT, ES9528-XTv2, ES7506, ES7510, ES7528, ES8508, ES8508F, ES8510, ES8510-XTE, ES9528/ES9528-XT (all versions) and ICRL-M-8RJ45/4SFP-G-DIN, ICRL-M-16RJ45/4CP-G-DIN FW 1.2.3 and below has an active TFTP-Service.

Weakness: CWE-912 (Hidden Functionality)

## Which versions are affected by CVE-2020-12504?

It affects 29 products.


Products: Korenix Jetwave 2212g Firmware, Korenix Jetwave 2212s Firmware, Korenix Jetwave 2212x Firmware, Korenix Jetwave 2311 Firmware, Korenix Jetwave 3220 Firmware, Korenix Jetwave 3420 Firmware, Korenix Jetwave 4510 Firmware, Korenix Jetwave 4706 Firmware, Korenix Jetwave 4706f Firmware, Korenix Jetwave 5010 Firmware, Korenix Jetwave 5310 Firmware, Korenix Jetwave 5428g-20sfp Firmware, Korenix Jetwave 5810g Firmware, Pepperl-Fuchs Es7506 Firmware, Pepperl-Fuchs Es7510-Xt Firmware, Pepperl-Fuchs Es7510 Firmware, Pepperl-Fuchs Es7528 Firmware, Pepperl-Fuchs Es8508 Firmware, Pepperl-Fuchs Es8508f Firmware, Pepperl-Fuchs Es8509-Xt Firmware and 9 more.

## How do I fix CVE-2020-12504?

No fix has been published for CVE-2020-12504 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-12504 being exploited?

There is no known exploitation of CVE-2020-12504 in the wild and no public exploit code.

## Other vulnerabilities in Korenix JetNet

- [CVE-2021-39280](https://insights.sbomify.com/CVE-2021-39280/): Command injection in n/a (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-12504 and fix it if it is affected.

What it is: CVE-2020-12504 is a critical missing authorization vulnerability in Korenix JetNet, published on 15 Oct 2020. 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-2020-12504 in the wild and no public exploit code.

Affected product: Korenix JetNet. 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-2020-12504/ (Markdown: https://insights.sbomify.com/CVE-2020-12504/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-12504
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-12504
- OSV: https://osv.dev/vulnerability/CVE-2020-12504

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-12504/
Summaries are generated and may contain mistakes; the official description above is the record.