# CVE-2023-33235: MXsecurity Command Injection Vulnerability

> Authenticated attackers can break out of the restricted SSH shell to execute arbitrary code on MXsecurity devices.

- **Severity:** High 7.2 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/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:** 22 May 2023
- **Updated:** 21 Jan 2025
- **Also known as:** GHSA-cx3c-2jcw-jmfg

## What is CVE-2023-33235?

CVE-2023-33235 is a high-severity command injection vulnerability in Moxa MXsecurity Series, published on 22 May 2023. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

MXsecurity version 1.0 is vulnearble to command injection vulnerability. This vulnerability has been reported in the SSH CLI program, which can be exploited by attackers who have gained authorization privileges. The attackers can break out of the restricted shell and subsequently execute arbitrary code.

Weakness: CWE-77 (Improper Neutralization of Special Elements used in a Command)

## Which versions are affected by CVE-2023-33235?

It affects 1 product.


Products: Moxa Mxsecurity.

## How do I fix CVE-2023-33235?

No fix has been published for CVE-2023-33235 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-33235 being exploited?

There is no known exploitation of CVE-2023-33235 in the wild and no public exploit code.

## Other vulnerabilities in Moxa MXsecurity Series

- [CVE-2023-39979](https://insights.sbomify.com/CVE-2023-39979/): MXsecurity Authentication Bypass (critical 9.8)
- [CVE-2023-33236](https://insights.sbomify.com/CVE-2023-33236/): MXsecurity Hardcoded Credential Vulnerability (critical 9.8)
- [CVE-2023-39981](https://insights.sbomify.com/CVE-2023-39981/): MXsecurity Device Information Disclosure (high 7.5)
- [CVE-2023-39982](https://insights.sbomify.com/CVE-2023-39982/): MXsecurity Hardcoded Credential (high 7.5)
- [CVE-2023-39980](https://insights.sbomify.com/CVE-2023-39980/): MXsecurity Authenticated Information Disclosure Due to SQL Injection (high 7.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-33235 and fix it if it is affected.

What it is: CVE-2023-33235 is a high-severity command injection vulnerability in Moxa MXsecurity Series, published on 22 May 2023. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-33235 in the wild and no public exploit code.

Affected product: Moxa MXsecurity Series. 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-2023-33235/ (Markdown: https://insights.sbomify.com/CVE-2023-33235/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-33235
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-33235
- OSV: https://osv.dev/vulnerability/CVE-2023-33235

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-33235/
Summaries are generated and may contain mistakes; the official description above is the record.