# CVE-2022-44456: Command injection in CONPROSYS HMI System (CHS)

> Remote unauthenticated attackers can execute arbitrary OS commands on CONPROSYS HMI System servers via crafted requests.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 19 Dec 2022
- **Updated:** 17 Apr 2025
- **Also known as:** GHSA-28g2-wc2r-qwc7

## What is CVE-2022-44456?

CVE-2022-44456 is a critical command injection vulnerability in Contec Co., Ltd. CONPROSYS HMI System (CHS), published on 19 Dec 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

CONPROSYS HMI System (CHS) Ver.3.4.4?and earlier allows a remote unauthenticated attacker to execute an arbitrary OS command on the server where the product is running by sending a specially crafted request.

Weakness: CWE-78 (Improper Neutralization of Special Elements used in an OS Command)

## Which versions are affected by CVE-2022-44456?

It affects 1 product.


Products: Contec Conprosys Hmi System.

## How do I fix CVE-2022-44456?

No fix has been published for CVE-2022-44456 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-44456 being exploited?

There is no known exploitation of CVE-2022-44456 in the wild and no public exploit code.

## Other vulnerabilities in Contec Co., Ltd. CONPROSYS HMI System (CHS)

- [CVE-2023-28657](https://insights.sbomify.com/CVE-2023-28657/): Privilege escalation in CONPROSYS HMI System (CHS) (high 8.8)
- [CVE-2023-28713](https://insights.sbomify.com/CVE-2023-28713/): Information disclosure in CONPROSYS HMI System (CHS) (high 8.1)
- [CVE-2023-28399](https://insights.sbomify.com/CVE-2023-28399/): Missing authorization in CONPROSYS HMI System (CHS) (high 7.8)
- [CVE-2023-22331](https://insights.sbomify.com/CVE-2023-22331/): Hardcoded credentials in CONPROSYS HMI System (CHS) (high 7.5)
- [CVE-2023-22339](https://insights.sbomify.com/CVE-2023-22339/): Missing authorization in CONPROSYS HMI System (CHS) (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-44456 and fix it if it is affected.

What it is: CVE-2022-44456 is a critical command injection vulnerability in Contec Co., Ltd. CONPROSYS HMI System (CHS), published on 19 Dec 2022. 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-2022-44456 in the wild and no public exploit code.

Affected product: Contec Co., Ltd. CONPROSYS HMI System (CHS). 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-2022-44456/ (Markdown: https://insights.sbomify.com/CVE-2022-44456/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-44456
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-44456
- OSV: https://osv.dev/vulnerability/CVE-2022-44456

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-44456/
Summaries are generated and may contain mistakes; the official description above is the record.