# CVE-2017-14023: Denial of service in Siemens SIMATIC PCS 7

> An authenticated administrator can crash services in Siemens SIMATIC PCS 7 by sending specially crafted messages to the DCOM interface.

- **Severity:** Medium 4.9 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 6 Nov 2017
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-wjw3-c5fg-gcm9

## What is CVE-2017-14023?

CVE-2017-14023 is a medium-severity denial of service vulnerability in Siemens SIMATIC PCS 7, published on 6 Nov 2017. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

An Improper Input Validation issue was discovered in Siemens SIMATIC PCS 7 V8.1 prior to V8.1 SP1 with WinCC V7.3 Upd 13, and V8.2 all versions. The improper input validation vulnerability has been identified, which may allow an authenticated remote attacker who is a member of the administrators group to crash services by sending specially crafted messages to the DCOM interface.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2017-14023?

It affects 2 products.


Products: Siemens Simatic Pcs7, Siemens Simatic Wincc.

## How do I fix CVE-2017-14023?

No fix has been published for CVE-2017-14023 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-14023 being exploited?

There is no known exploitation of CVE-2017-14023 in the wild and no public exploit code.

## Other vulnerabilities in Siemens SIMATIC PCS 7

- [CVE-2014-8551](https://insights.sbomify.com/CVE-2014-8551/): Code injection in n/a (critical 10.0)
- [CVE-2013-3957](https://insights.sbomify.com/CVE-2013-3957/): SQL injection in n/a (high 7.5)
- [CVE-2013-3958](https://insights.sbomify.com/CVE-2013-3958/): Hardcoded credentials in n/a (high 7.5)
- [CVE-2012-3032](https://insights.sbomify.com/CVE-2012-3032/): SQL injection in n/a (high 7.5)
- [CVE-2012-3015](https://insights.sbomify.com/CVE-2012-3015/): Privilege escalation in n/a (medium 6.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-14023 and fix it if it is affected.

What it is: CVE-2017-14023 is a medium-severity denial of service vulnerability in Siemens SIMATIC PCS 7, published on 6 Nov 2017. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2017-14023 in the wild and no public exploit code.

Affected product: Siemens SIMATIC PCS 7. 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-2017-14023/ (Markdown: https://insights.sbomify.com/CVE-2017-14023/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-14023
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-14023
- OSV: https://osv.dev/vulnerability/CVE-2017-14023

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-14023/
Summaries are generated and may contain mistakes; the official description above is the record.