# CVE-2019-6569: Other in SCALANCE X204-2

> Attackers can bypass monitor barriers to inject malicious packets into mirrored networks, potentially altering system configuration and runtime behavior.

- **Severity:** Critical 9.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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:** 26 Mar 2019
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-pq3w-wpr9-q68m

## What is CVE-2019-6569?

CVE-2019-6569 is a critical vulnerability in Siemens SCALANCE X204-2, published on 26 Mar 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The monitor barrier of the affected products insufficiently blocks data from being forwarded over the mirror port into the mirrored network. An attacker could use this behavior to transmit malicious packets to systems in the mirrored network, possibly influencing their configuration and runtime behavior.

Weakness: CWE-440 (Expected Behavior Violation)

## Which versions are affected by CVE-2019-6569?

It affects 5 products.


Products: Siemens Scalance X-200 Firmware, Siemens Scalance X-300 Firmware, Siemens Scalance Xc-200 Firmware, Siemens Scalance Xf-200 Firmware, Siemens Scalance Xp-200 Firmware.

## How do I fix CVE-2019-6569?

No fix has been published for CVE-2019-6569 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-6569 being exploited?

There is no known exploitation of CVE-2019-6569 in the wild and no public exploit code.

## Other vulnerabilities in Siemens SCALANCE X204-2

- [CVE-2019-10942](https://insights.sbomify.com/CVE-2019-10942/): Denial of service in SCALANCE X-200 switch family (incl. SIPLUS NET variants) (high 8.6)
- [CVE-2018-4848](https://insights.sbomify.com/CVE-2018-4848/): Cross-site scripting in SCALANCE X-200 switch family (incl. SIPLUS NET variants) (medium 6.1)
- [CVE-2019-6567](https://insights.sbomify.com/CVE-2019-6567/): Information disclosure in SCALANCE X-200 switch family (incl. SIPLUS NET variants) (medium 5.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-6569 and fix it if it is affected.

What it is: CVE-2019-6569 is a critical vulnerability in Siemens SCALANCE X204-2, published on 26 Mar 2019. 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-2019-6569 in the wild and no public exploit code.

Affected product: Siemens SCALANCE X204-2. 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-2019-6569/ (Markdown: https://insights.sbomify.com/CVE-2019-6569/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-6569
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-6569
- OSV: https://osv.dev/vulnerability/CVE-2019-6569

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From sbomify Insights: https://insights.sbomify.com/CVE-2019-6569/
Summaries are generated and may contain mistakes; the official description above is the record.