# CVE-2019-13924: Security feature bypass in SCALANCE S602

> Missing X-Frame-Options header allows clickjacking attacks, enabling attackers to perform administrative actions on Siemens SCALANCE devices.

- **Severity:** Medium 5.4 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 11 Feb 2020
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-9v8p-c94c-q287

## What is CVE-2019-13924?

CVE-2019-13924 is a medium-severity vulnerability in Siemens SCALANCE S602, published on 11 Feb 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

A vulnerability has been identified in SCALANCE S602 (All versions < V4.1), SCALANCE S612 (All versions < V4.1), SCALANCE S623 (All versions < V4.1), SCALANCE S627-2M (All versions < V4.1), SCALANCE X-200 switch family (incl. SIPLUS NET variants) (All versions < 5.2.4), SCALANCE X-200IRT switch family (incl. SIPLUS NET variants) (All versions < V5.5.0), SCALANCE X-200RNA switch family (All versions < V3.2.7), SCALANCE X-300 switch family (incl. X408 and SIPLUS NET variants) (All versions < 4.1.3). The device does not send the X-Frame-Option Header in the administrative web interface, which makes it vulnerable to Clickjacking attacks. The security vulnerability could be exploited by an attacker that is able to trick an administrative user with a valid session on the target device into clicking on a website controlled by the attacker. The vulnerability could allow an attacker to perform administrative actions via the web interface.

Weakness: CWE-1021 (Improper Restriction of Rendered UI Layers or Frames), CWE-693 (Protection Mechanism Failure)

## Which versions are affected by CVE-2019-13924?

It affects 8 products.


Products: Siemens Scalance X-200irt Firmware, Siemens Scalance X-300 Firmware, Siemens Scalance Xb-200 Firmware, Siemens Scalance Xc-200 Firmware, Siemens Scalance Xf-200 Firmware, Siemens Scalance Xp-200 Firmware, Siemens Scalance Xr-300 Firmware, Siemens Scalance Xr-300wg Firmware.

## How do I fix CVE-2019-13924?

No fix has been published for CVE-2019-13924 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-13924 being exploited?

There is no known exploitation of CVE-2019-13924 in the wild and no public exploit code.

## Other vulnerabilities in Siemens SCALANCE S602

- [CVE-2019-19301](https://insights.sbomify.com/CVE-2019-19301/): Denial of service in SCALANCE X200-4P IRT (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-13924 and fix it if it is affected.

What it is: CVE-2019-13924 is a medium-severity vulnerability in Siemens SCALANCE S602, published on 11 Feb 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2019-13924 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-2019-13924/ (Markdown: https://insights.sbomify.com/CVE-2019-13924/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-13924
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-13924
- OSV: https://osv.dev/vulnerability/CVE-2019-13924

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From sbomify Insights: https://insights.sbomify.com/CVE-2019-13924/
Summaries are generated and may contain mistakes; the official description above is the record.