# CVE-2023-4570: Improper Restriction in NI MeasurementLink Python Services

> Attackers on adjacent networks can access localhost-only services due to improper access restrictions in NI MeasurementLink Python services.

- **Severity:** High 8.8 (`CVSS:3.1/AV:A/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:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 5 Oct 2023
- **Updated:** 19 Sep 2024
- **Also known as:** GHSA-3f48-9j7q-q2gv, PYSEC-2026-1695

## What is CVE-2023-4570?

CVE-2023-4570 is a high-severity missing authorization vulnerability in NI MeasurementLink , published on 5 Oct 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

An improper access restriction in NI MeasurementLink Python services could allow an attacker on an adjacent network to reach services exposed on localhost.  These services were previously thought to be unreachable outside of the node.  This affects measurement plug-ins written in Python using version 1.1.0 of the ni-measurementlink-service Python package and all previous versions.

Weakness: CWE-420 (Unprotected Alternate Channel)

## Which versions are affected by CVE-2023-4570?

5 open source packages ship an affected version, including ni-measurementlink-service. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `ni-measurementlink-service` | PyPI | All versions | 1.1.1, 1.2.0 |
| `ni-measurementlink-service` | PyPI | All versions | 1.1.1 |
| `ni-measurementlink-service` | PyPI | All versions | 1.1.1 |
| `ni-measurementlink-service` | PyPI | From 1.2.0.dev0 | 1.2.0 |
| `ni-measurementlink-service` | PyPI | From 1.2.0.dev0 | 1.2.0 |

Products: Ni Measurementlink.

## How do I fix CVE-2023-4570?

Upgrade ni-measurementlink-service to a fixed version for your release line: 1.1.1 or 1.2.0.

## Is CVE-2023-4570 being exploited?

There is no known exploitation of CVE-2023-4570 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-4570 and fix it if it is affected.

What it is: CVE-2023-4570 is a high-severity missing authorization vulnerability in NI MeasurementLink , published on 5 Oct 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-4570 in the wild and no public exploit code.

Affected packages and fixed versions:
- ni-measurementlink-service (PyPI): affected all versions; fixed in 1.1.1, 1.2.0
- ni-measurementlink-service (PyPI): affected all versions; fixed in 1.1.1
- ni-measurementlink-service (PyPI): affected all versions; fixed in 1.1.1
- ni-measurementlink-service (PyPI): affected from 1.2.0.dev0; fixed in 1.2.0
- ni-measurementlink-service (PyPI): affected from 1.2.0.dev0; fixed in 1.2.0

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-2023-4570/ (Markdown: https://insights.sbomify.com/CVE-2023-4570/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-4570
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-4570
- OSV: https://osv.dev/vulnerability/CVE-2023-4570

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-4570/
Summaries are generated and may contain mistakes; the official description above is the record.