# CVE-2023-5592: Phoenix Contact: ProConOs prone to Download of Code Without Integrity Check

> Unauthenticated remote attackers can download and execute arbitrary code on Phoenix Contact devices due to missing integrity checks.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/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:** 14 Dec 2023
- **Updated:** 2 Aug 2024
- **Also known as:** GHSA-f98h-m8p3-7jp3

## What is CVE-2023-5592?

CVE-2023-5592 is a high-severity code injection vulnerability in PHOENIX CONTACT MULTIPROG, published on 14 Dec 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Download of Code Without Integrity Check vulnerability in PHOENIX CONTACT MULTIPROG, PHOENIX CONTACT ProConOS eCLR (SDK) allows an unauthenticated remote attacker to download and execute applications without integrity checks on the device which may result in a complete loss of integrity.

Weakness: CWE-494 (Download of Code Without Integrity Check)

## Which versions are affected by CVE-2023-5592?

It affects 2 products.


Products: Phoenixcontact Multiprog, Phoenixcontact Proconos Eclr.

## How do I fix CVE-2023-5592?

No fix has been published for CVE-2023-5592 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-5592 being exploited?

There is no known exploitation of CVE-2023-5592 in the wild and no public exploit code.

## Other vulnerabilities in PHOENIX CONTACT MULTIPROG

- [CVE-2023-0757](https://insights.sbomify.com/CVE-2023-0757/): Phoenix Contact ProConOS prone to Incorrect Permission Assignment for Critical Resource (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-5592 and fix it if it is affected.

What it is: CVE-2023-5592 is a high-severity code injection vulnerability in PHOENIX CONTACT MULTIPROG, published on 14 Dec 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-2023-5592 in the wild and no public exploit code.

Affected product: PHOENIX CONTACT MULTIPROG. 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-2023-5592/ (Markdown: https://insights.sbomify.com/CVE-2023-5592/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-5592
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-5592
- OSV: https://osv.dev/vulnerability/CVE-2023-5592

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-5592/
Summaries are generated and may contain mistakes; the official description above is the record.