# CVE-2023-23371: QVPN Device Client

> Local authenticated administrators can read sensitive data due to cleartext transmission in the QVPN Windows client.

- **Severity:** Medium 5.2 (`CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 6 Oct 2023
- **Updated:** 19 Sep 2024
- **Also known as:** GHSA-599f-8pqx-ww6q

## What is CVE-2023-23371?

CVE-2023-23371 is a medium-severity vulnerability in QNAP Systems Inc. QVPN Windows, published on 6 Oct 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

A cleartext transmission of sensitive information vulnerability has been reported to affect QVPN Device Client. If exploited, the vulnerability could allow local authenticated administrators to read sensitive data via unspecified vectors.

We have already fixed the vulnerability in the following version:
QVPN Windows 2.2.0.0823 and later

Weakness: CWE-319 (Cleartext Transmission of Sensitive Information), CWE-311 (Missing Encryption of Sensitive Data)

## Which versions are affected by CVE-2023-23371?

It affects 1 product.


Products: Qnap Qvpn.

## How do I fix CVE-2023-23371?

No fix has been published for CVE-2023-23371 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-23371 being exploited?

There is no known exploitation of CVE-2023-23371 in the wild and no public exploit code.

## Other vulnerabilities in QNAP Systems Inc. QVPN Windows

- [CVE-2022-27595](https://insights.sbomify.com/CVE-2022-27595/): QVPN Device Client (high 7.8)
- [CVE-2023-23370](https://insights.sbomify.com/CVE-2023-23370/): QVPN Device Client (medium 6.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-23371 and fix it if it is affected.

What it is: CVE-2023-23371 is a medium-severity vulnerability in QNAP Systems Inc. QVPN Windows, published on 6 Oct 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2023-23371 in the wild and no public exploit code.

Affected product: QNAP Systems Inc. QVPN Windows. 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-2023-23371/ (Markdown: https://insights.sbomify.com/CVE-2023-23371/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-23371
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-23371
- OSV: https://osv.dev/vulnerability/CVE-2023-23371

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-23371/
Summaries are generated and may contain mistakes; the official description above is the record.