# CVE-2022-31204: Information disclosure in n/a

> Omron PLCs transmit UM Protection passwords in cleartext, allowing attackers to intercept credentials and bypass restrictions on sensitive engineering operations.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 26 Jul 2022
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-r7cc-f77m-gvjj

## What is CVE-2022-31204?

CVE-2022-31204 is a high-severity vulnerability in n/a, published on 26 Jul 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Omron CS series, CJ series, and CP series PLCs through 2022-05-18 use cleartext passwords. They feature a UM Protection setting that allows users or system integrators to configure a password in order to restrict sensitive engineering operations (such as project/logic uploads and downloads). This password is set using the OMRON FINS command Program Area Protect and unset using the command Program Area Protect Clear, both of which are transmitted in cleartext.

Weakness: CWE-319 (Cleartext Transmission of Sensitive Information)

## Which versions are affected by CVE-2022-31204?

It affects 8 products.


Products: Omron Cp1w-Cif41 Firmware, Omron Cx-Programmer, Omron Sysmac Cj2h Firmware, Omron Sysmac Cj2m Firmware, Omron Sysmac Cp1e Firmware, Omron Sysmac Cp1h Firmware, Omron Sysmac Cp1l Firmware, Omron Sysmac Cs1 Firmware.

## How do I fix CVE-2022-31204?

No fix has been published for CVE-2022-31204 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-31204 being exploited?

There is no known exploitation of CVE-2022-31204 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2022-31207](https://insights.sbomify.com/CVE-2022-31207/): Missing authorization in n/a (critical 9.8)
- [CVE-2022-31205](https://insights.sbomify.com/CVE-2022-31205/): Information disclosure in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-31204 and fix it if it is affected.

What it is: CVE-2022-31204 is a high-severity vulnerability in n/a, published on 26 Jul 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-2022-31204 in the wild and no public exploit code.

Affected product: n/a. 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-2022-31204/ (Markdown: https://insights.sbomify.com/CVE-2022-31204/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-31204
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-31204
- OSV: https://osv.dev/vulnerability/CVE-2022-31204

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-31204/
Summaries are generated and may contain mistakes; the official description above is the record.