# CVE-2023-4149: WAGO: OS Command Injection Vulnerability in Managed Switch

> Unauthenticated remote attackers can inject arbitrary system commands with root privileges via the web-based management interface of WAGO industrial switches.

- **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:** 21 Nov 2023
- **Updated:** 2 Aug 2024
- **Also known as:** GHSA-m9j6-mhrg-j5gg

## What is CVE-2023-4149?

CVE-2023-4149 is a critical command injection vulnerability in WAGO Industrial Managed Switch (0852-0602), published on 21 Nov 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability in the web-based management allows an unauthenticated remote attacker to inject arbitrary system commands and gain full system control. Those commands are executed with root privileges. The vulnerability is located in the user request handling of the web-based management.

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

## Which versions are affected by CVE-2023-4149?

It affects 3 products.


Products: Wago 0852-0602 Firmware, Wago 0852-0603 Firmware, Wago 0852-1605 Firmware.

## How do I fix CVE-2023-4149?

No fix has been published for CVE-2023-4149 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-4149 being exploited?

There is no known exploitation of CVE-2023-4149 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-4149 and fix it if it is affected.

What it is: CVE-2023-4149 is a critical command injection vulnerability in WAGO Industrial Managed Switch (0852-0602), published on 21 Nov 2023. 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-2023-4149 in the wild and no public exploit code.

Affected product: WAGO Industrial Managed Switch (0852-0602). 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-2023-4149/ (Markdown: https://insights.sbomify.com/CVE-2023-4149/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-4149
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-4149
- OSV: https://osv.dev/vulnerability/CVE-2023-4149

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-4149/
Summaries are generated and may contain mistakes; the official description above is the record.