# CVE-2022-32143: CODESYS runtime system prone to directory acces

> Attackers can access internal PLC files via file upload/download functions if no password is set, leading to data exposure or modification.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 24 Jun 2022
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-2rg2-4589-q6mj

## What is CVE-2022-32143?

CVE-2022-32143 is a high-severity path traversal vulnerability in CODESYS PLCWinNT, published on 24 Jun 2022. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

In multiple CODESYS products, file download and upload function allows access to internal files in the working directory e.g. firmware files of the PLC. All requests are processed on the controller only if no level 1 password is configured on the controller or if remote attacker has previously successfully authenticated himself to the controller. A successful Attack may lead to a denial of service, change of local files, or drain of confidential Information. User interaction is not required

Weakness: CWE-552 (Files or Directories Accessible to External Parties)

## Which versions are affected by CVE-2022-32143?

It affects 2 products.


Products: Codesys Plcwinnt, Codesys Runtime Toolkit.

## How do I fix CVE-2022-32143?

No fix has been published for CVE-2022-32143 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-32143 being exploited?

There is no known exploitation of CVE-2022-32143 in the wild and no public exploit code.

## Other vulnerabilities in CODESYS PLCWinNT

- [CVE-2022-31806](https://insights.sbomify.com/CVE-2022-31806/): Insecure default settings in CODESYS Runtime Toolkit 32 bit full and CODESYS PLCWinNT (critical 9.8)
- [CVE-2022-32137](https://insights.sbomify.com/CVE-2022-32137/): CODESYS Runtime System prone to heap based buffer overflow (high 8.8)
- [CVE-2022-32138](https://insights.sbomify.com/CVE-2022-32138/): CODESYS runtime system prone to denial of service due to Unexpected Sign Extension (high 8.8)
- [CVE-2022-1965](https://insights.sbomify.com/CVE-2022-1965/): CODESYS runtime system prone to file deletion due to improper error handling (high 8.1)
- [CVE-2022-32142](https://insights.sbomify.com/CVE-2022-32142/): CODESYS runtime system prone to denial of service due to use of out of range pointer (high 8.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-32143 and fix it if it is affected.

What it is: CVE-2022-32143 is a high-severity path traversal vulnerability in CODESYS PLCWinNT, published on 24 Jun 2022. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2022-32143 in the wild and no public exploit code.

Affected product: CODESYS PLCWinNT. 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-2022-32143/ (Markdown: https://insights.sbomify.com/CVE-2022-32143/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-32143
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-32143
- OSV: https://osv.dev/vulnerability/CVE-2022-32143

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From sbomify Insights: https://insights.sbomify.com/CVE-2022-32143/
Summaries are generated and may contain mistakes; the official description above is the record.