# CVE-2023-37194: Privilege escalation in SIMATIC CP 1604

> Local attackers with admin privileges can execute arbitrary code on the host system due to kernel memory exposure via DMA in Siemens SIMATIC CP devices.

- **Severity:** Medium 6.7 (`CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 10 Oct 2023
- **Updated:** 19 Sep 2024
- **Also known as:** GHSA-cjgq-qwc4-hf8h

## What is CVE-2023-37194?

CVE-2023-37194 is a medium-severity vulnerability in Siemens SIMATIC CP 1604, published on 10 Oct 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A vulnerability has been identified in SIMATIC CP 1604 (All versions), SIMATIC CP 1616 (All versions), SIMATIC CP 1623 (All versions), SIMATIC CP 1626 (All versions), SIMATIC CP 1628 (All versions). The kernel memory of affected devices is exposed to user-mode via direct memory access (DMA) which could allow a local attacker with administrative privileges to execute arbitrary code on the host system without any restrictions.

Weakness: CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2023-37194?

It affects 5 products.


Products: Siemens Simatic Cp 1604 Firmware, Siemens Simatic Cp 1616 Firmware, Siemens Simatic Cp 1623 Firmware, Siemens Simatic Cp 1626 Firmware, Siemens Simatic Cp 1628 Firmware.

## How do I fix CVE-2023-37194?

No fix has been published for CVE-2023-37194 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-37194 being exploited?

There is no known exploitation of CVE-2023-37194 in the wild and no public exploit code.

## Other vulnerabilities in Siemens SIMATIC CP 1604

- [CVE-2023-37195](https://insights.sbomify.com/CVE-2023-37195/): Denial of service in SIMATIC CP 1604 (medium 4.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-37194 and fix it if it is affected.

What it is: CVE-2023-37194 is a medium-severity vulnerability in Siemens SIMATIC CP 1604, published on 10 Oct 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-37194 in the wild and no public exploit code.

Affected product: Siemens SIMATIC 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-2023-37194/ (Markdown: https://insights.sbomify.com/CVE-2023-37194/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-37194
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-37194
- OSV: https://osv.dev/vulnerability/CVE-2023-37194

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-37194/
Summaries are generated and may contain mistakes; the official description above is the record.