# CVE-2018-13800: Cross-site request forgery in SIMATIC S7-1200 CPU family version 4

> An attacker can trick authenticated users into modifying or reading device configuration via CSRF on the SIMATIC S7-1200 web interface.

- **Severity:** High 7.3 (`CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 10 Oct 2018
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-h794-q9mp-rjc7

## What is CVE-2018-13800?

CVE-2018-13800 is a high-severity vulnerability in Siemens AG SIMATIC S7-1200 CPU family version 4, published on 10 Oct 2018. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

A vulnerability has been identified in SIMATIC S7-1200 CPU family version 4 (All versions < V4.2.3). The web interface could allow a Cross-Site Request Forgery (CSRF) attack if an unsuspecting user is tricked into accessing a malicious link. Successful exploitation requires user interaction by a legitimate user, who must be authenticated to the web interface. A successful attack could allow an attacker to trigger actions via the web interface that the legitimate user is allowed to perform. This could allow the attacker to read or modify parts of the device configuration.

Weakness: CWE-352 (Cross-Site Request Forgery)

## Which versions are affected by CVE-2018-13800?

It affects 1 product.


Products: Siemens Simatic S7-1200 V4 Firmware.

## How do I fix CVE-2018-13800?

No fix has been published for CVE-2018-13800 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-13800 being exploited?

There is no known exploitation of CVE-2018-13800 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-13800 and fix it if it is affected.

What it is: CVE-2018-13800 is a high-severity vulnerability in Siemens AG SIMATIC S7-1200 CPU family version 4, published on 10 Oct 2018. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2018-13800 in the wild and no public exploit code.

Affected product: Siemens AG SIMATIC S7-1200 CPU family version 4. 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-2018-13800/ (Markdown: https://insights.sbomify.com/CVE-2018-13800/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-13800
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-13800
- OSV: https://osv.dev/vulnerability/CVE-2018-13800

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From sbomify Insights: https://insights.sbomify.com/CVE-2018-13800/
Summaries are generated and may contain mistakes; the official description above is the record.