# CVE-2019-18334: Information disclosure in SPPA-T3000 Application Server

> An attacker with network access can enumerate valid user names on the Siemens SPPA-T3000 Application Server by sending crafted packets.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 12 Dec 2019
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-fjjf-rm62-cch5

## What is CVE-2019-18334?

CVE-2019-18334 is a medium-severity vulnerability in Siemens SPPA-T3000 Application Server, published on 12 Dec 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 SPPA-T3000 Application Server (All versions < Service Pack R8.2 SP2). An attacker with network access to the Application Server could be able to enumerate valid user names by sending specifically crafted packets to 8090/tcp. Please note that an attacker needs to have network access to the Application Server in order to exploit this vulnerability. At the time of advisory publication no public exploitation of this security vulnerability was known.

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

## Which versions are affected by CVE-2019-18334?

It affects 1 product.


Products: Siemens Sppa-T3000 Application Server.

## How do I fix CVE-2019-18334?

No fix has been published for CVE-2019-18334 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-18334 being exploited?

There is no known exploitation of CVE-2019-18334 in the wild and no public exploit code.

## Other vulnerabilities in Siemens SPPA-T3000 Application Server

- [CVE-2019-18283](https://insights.sbomify.com/CVE-2019-18283/): Deserialization in SPPA-T3000 Application Server (critical 9.8)
- [CVE-2019-18284](https://insights.sbomify.com/CVE-2019-18284/): Missing authorization in SPPA-T3000 Application Server (critical 9.8)
- [CVE-2019-18314](https://insights.sbomify.com/CVE-2019-18314/): Deserialization in SPPA-T3000 Application Server (critical 9.8)
- [CVE-2019-18315](https://insights.sbomify.com/CVE-2019-18315/): Auth bypass in SPPA-T3000 Application Server (critical 9.8)
- [CVE-2019-18316](https://insights.sbomify.com/CVE-2019-18316/): Deserialization in SPPA-T3000 Application Server (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-18334 and fix it if it is affected.

What it is: CVE-2019-18334 is a medium-severity vulnerability in Siemens SPPA-T3000 Application Server, published on 12 Dec 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-2019-18334 in the wild and no public exploit code.

Affected product: Siemens SPPA-T3000 Application Server. 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-2019-18334/ (Markdown: https://insights.sbomify.com/CVE-2019-18334/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-18334
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-18334
- OSV: https://osv.dev/vulnerability/CVE-2019-18334

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-18334/
Summaries are generated and may contain mistakes; the official description above is the record.