# CVE-2023-42797: Command injection in CP-8031 MASTER MODULE

> An authenticated remote attacker can inject commands executed with root privileges on Siemens CP-8031/8050 modules during startup via crafted network configuration.

- **Severity:** Medium 6.6 (`CVSS:3.1/AV:N/AC:H/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:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 9 Jan 2024
- **Updated:** 3 Jun 2025
- **Also known as:** GHSA-j695-jhjg-w8vx

## What is CVE-2023-42797?

CVE-2023-42797 is a medium-severity command injection vulnerability in Siemens CP-8031 MASTER MODULE, published on 9 Jan 2024. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

A vulnerability has been identified in CP-8031 MASTER MODULE (All versions < CPCI85 V05.20), CP-8050 MASTER MODULE (All versions < CPCI85 V05.20). The network configuration service of affected devices contains a flaw in the conversion of ipv4 addresses that could lead to an uninitialized variable being used in succeeding validation steps.

By uploading specially crafted network configuration, an authenticated remote attacker could be able to inject commands that are executed on the device with root privileges during device startup.

Weakness: CWE-908 (Use of Uninitialized Resource)

## Which versions are affected by CVE-2023-42797?

It affects 2 products.


Products: Siemens Sicam A8000 Cp-8031 Firmware, Siemens Sicam A8000 Cp-8050 Firmware.

## How do I fix CVE-2023-42797?

No fix has been published for CVE-2023-42797 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-42797 being exploited?

There is no known exploitation of CVE-2023-42797 in the wild and no public exploit code.

## Other vulnerabilities in Siemens CP-8031 MASTER MODULE

- [CVE-2022-27480](https://insights.sbomify.com/CVE-2022-27480/): Missing authorization in SICAM A8000 CP-8031 (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-42797 and fix it if it is affected.

What it is: CVE-2023-42797 is a medium-severity command injection vulnerability in Siemens CP-8031 MASTER MODULE, published on 9 Jan 2024. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-42797 in the wild and no public exploit code.

Affected product: Siemens CP-8031 MASTER MODULE. 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-2023-42797/ (Markdown: https://insights.sbomify.com/CVE-2023-42797/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-42797
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-42797
- OSV: https://osv.dev/vulnerability/CVE-2023-42797

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From sbomify Insights: https://insights.sbomify.com/CVE-2023-42797/
Summaries are generated and may contain mistakes; the official description above is the record.