# CVE-2019-13925: Denial of service in SCALANCE S602

> Attackers can cause a denial of service on Siemens SCALANCE switches by sending specially crafted packets to the web server.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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:** 11 Feb 2020
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-5v2c-57g6-p92f

## What is CVE-2019-13925?

CVE-2019-13925 is a high-severity denial of service vulnerability in Siemens SCALANCE S602, published on 11 Feb 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability has been identified in SCALANCE S602 (All versions >= V3.0 and < V4.1), SCALANCE S612 (All versions >= V3.0 and < V4.1), SCALANCE S623 (All versions >= V3.0 and < V4.1), SCALANCE S627-2M (All versions >= V3.0 and < V4.1). Specially crafted packets sent to port 443/tcp of affected devices could cause a Denial-of-Service condition of the web server.

Weakness: CWE-400 (Uncontrolled Resource Consumption)

## Which versions are affected by CVE-2019-13925?

It affects 4 products.


Products: Siemens Scalance S602 Firmware, Siemens Scalance S612 Firmware, Siemens Scalance S623 Firmware, Siemens Scalance S627-2m Firmware.

## How do I fix CVE-2019-13925?

No fix has been published for CVE-2019-13925 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-13925 being exploited?

There is no known exploitation of CVE-2019-13925 in the wild and no public exploit code.

## Other vulnerabilities in Siemens SCALANCE S602

- [CVE-2019-13926](https://insights.sbomify.com/CVE-2019-13926/): Denial of service in SCALANCE S602 (high 7.5)
- [CVE-2019-6585](https://insights.sbomify.com/CVE-2019-6585/): Cross-site scripting in SCALANCE S602 (medium 6.1)
- [CVE-2018-16555](https://insights.sbomify.com/CVE-2018-16555/): Cross-site scripting in SCALANCE S602, SCALANCE S612, SCALANCE S623, SCALANCE S627-2M (medium 5.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-13925 and fix it if it is affected.

What it is: CVE-2019-13925 is a high-severity denial of service vulnerability in Siemens SCALANCE S602, published on 11 Feb 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-2019-13925 in the wild and no public exploit code.

Affected product: Siemens SCALANCE S602. 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-2019-13925/ (Markdown: https://insights.sbomify.com/CVE-2019-13925/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-13925
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-13925
- OSV: https://osv.dev/vulnerability/CVE-2019-13925

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From sbomify Insights: https://insights.sbomify.com/CVE-2019-13925/
Summaries are generated and may contain mistakes; the official description above is the record.