# CVE-2018-13808: Information disclosure in CP 1604

> An attacker with network access can extract internal communication data or cause a Denial-of-Service condition on Siemens CP 1604 and CP 1616 devices.

- **Severity:** Critical 9.1 (`CVSS:3.0/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:** 17 Apr 2019
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-99g2-cch4-5hwg

## What is CVE-2018-13808?

CVE-2018-13808 is a critical vulnerability in Siemens CP 1604, published on 17 Apr 2019. 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 CP 1604 (All versions), CP 1616 (All versions). An attacker with network access to port 23/tcp could extract internal communication data or cause a Denial-of-Service condition. Successful exploitation requires network access to a vulnerable device. At the time of advisory publication no public exploitation of this vulnerability was known.

Weakness: CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2018-13808?

It affects 2 products.


Products: Siemens Cp 1604 Firmware, Siemens Cp 1616 Firmware.

## How do I fix CVE-2018-13808?

No fix has been published for CVE-2018-13808 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-13808 being exploited?

There is no known exploitation of CVE-2018-13808 in the wild and no public exploit code.

## Other vulnerabilities in Siemens CP 1604

- [CVE-2018-13810](https://insights.sbomify.com/CVE-2018-13810/): Cross-site request forgery in CP 1604 (medium 6.5)
- [CVE-2018-13809](https://insights.sbomify.com/CVE-2018-13809/): Cross-site scripting in CP 1604 (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-13808 and fix it if it is affected.

What it is: CVE-2018-13808 is a critical vulnerability in Siemens CP 1604, published on 17 Apr 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-2018-13808 in the wild and no public exploit code.

Affected product: Siemens CP 1604. 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-2018-13808/ (Markdown: https://insights.sbomify.com/CVE-2018-13808/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-13808
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-13808
- OSV: https://osv.dev/vulnerability/CVE-2018-13808

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-13808/
Summaries are generated and may contain mistakes; the official description above is the record.