# CVE-2019-10919: Missing authorization in LOGO! 8 BM (incl. SIPLUS variants)

> Unauthenticated attackers can reconfigure devices and steal project files via port 10005/tcp, impacting confidentiality, integrity, and availability.

- **Severity:** Critical 9.4 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 14 May 2019
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-2rp9-ffvm-xjc8

## What is CVE-2019-10919?

CVE-2019-10919 is a critical missing authorization vulnerability in Siemens LOGO! 8 BM (incl. SIPLUS variants), published on 14 May 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 LOGO! 8 BM (incl. SIPLUS variants) (All versions < V8.3). Attackers with access to port 10005/tcp could perform device reconfigurations and obtain project files from the devices. The system manual recommends to protect access to this port. The security vulnerability could be exploited by an unauthenticated attacker with network access to port 10005/tcp. No user interaction is required to exploit this security vulnerability. The vulnerability impacts confidentiality, integrity, and availability of the device. At the time of advisory publication no public exploitation of this security vulnerability was known.

Weakness: CWE-306 (Missing Authentication for Critical Functionality)

## Which versions are affected by CVE-2019-10919?

It affects 1 product.


Products: Siemens Logo\!8 Bm Firmware.

## How do I fix CVE-2019-10919?

No fix has been published for CVE-2019-10919 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-10919 being exploited?

There is no known exploitation of CVE-2019-10919 in the wild and no public exploit code.

## Other vulnerabilities in Siemens LOGO! 8 BM (incl. SIPLUS variants)

- [CVE-2019-10920](https://insights.sbomify.com/CVE-2019-10920/): Hardcoded credentials in LOGO! 8 BM (incl. SIPLUS variants) (high 7.5)
- [CVE-2019-10921](https://insights.sbomify.com/CVE-2019-10921/): Information disclosure in LOGO! 8 BM (incl. SIPLUS variants) (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-10919 and fix it if it is affected.

What it is: CVE-2019-10919 is a critical missing authorization vulnerability in Siemens LOGO! 8 BM (incl. SIPLUS variants), published on 14 May 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-2019-10919 in the wild and no public exploit code.

Affected product: Siemens LOGO! 8 BM (incl. SIPLUS variants). 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-2019-10919/ (Markdown: https://insights.sbomify.com/CVE-2019-10919/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-10919
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-10919
- OSV: https://osv.dev/vulnerability/CVE-2019-10919

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-10919/
Summaries are generated and may contain mistakes; the official description above is the record.