# CVE-2019-18337: Auth bypass in Control Center Server (CCS)

> Remote attackers can bypass authentication to read the user database, including obfuscated passwords, from the Siemens Control Center Server.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:U/RC:C`)
- **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:** 15 Oct 2024
- **Also known as:** GHSA-xj2p-gvrg-v6wm

## What is CVE-2019-18337?

CVE-2019-18337 is a critical authentication bypass vulnerability in Siemens Control Center Server (CCS), 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 Control Center Server (CCS) (All versions < V1.5.0). The Control Center Server (CCS) contains an authentication bypass
vulnerability in its XML-based communication protocol as provided by default
on ports 5444/tcp and 5440/tcp.

A remote attacker with network access to the CCS server could
exploit this vulnerability to read the CCS users database, including
the passwords of all users in obfuscated cleartext.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2019-18337?

It affects 2 products.


Products: Siemens Sinvr 3 Central Control Server, Siemens Sinvr 3 Video Server.

## How do I fix CVE-2019-18337?

No fix has been published for CVE-2019-18337 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-18337 being exploited?

There is no known exploitation of CVE-2019-18337 in the wild and no public exploit code.

## Other vulnerabilities in Siemens Control Center Server (CCS)

- [CVE-2019-18339](https://insights.sbomify.com/CVE-2019-18339/): Auth bypass in SiNVR/SiVMS Video Server (critical 9.8)
- [CVE-2019-19292](https://insights.sbomify.com/CVE-2019-19292/): SQL injection in Control Center Server (CCS) (high 8.8)
- [CVE-2019-18338](https://insights.sbomify.com/CVE-2019-18338/): Path traversal in Control Center Server (CCS) (high 7.7)
- [CVE-2019-19297](https://insights.sbomify.com/CVE-2019-19297/): Path traversal in SiNVR/SiVMS Video Server (high 7.5)
- [CVE-2019-19296](https://insights.sbomify.com/CVE-2019-19296/): Path traversal in SiNVR/SiVMS Video Server (medium 6.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-18337 and fix it if it is affected.

What it is: CVE-2019-18337 is a critical authentication bypass vulnerability in Siemens Control Center Server (CCS), 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-2019-18337 in the wild and no public exploit code.

Affected product: Siemens Control Center Server (CCS). 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-2019-18337/ (Markdown: https://insights.sbomify.com/CVE-2019-18337/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-18337
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-18337
- OSV: https://osv.dev/vulnerability/CVE-2019-18337

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-18337/
Summaries are generated and may contain mistakes; the official description above is the record.