# CVE-2023-34973: QTS, QuTS hero

> Insufficient entropy in QNAP operating systems allows remote attackers to predict secrets, potentially compromising data confidentiality and security controls.

- **Severity:** Low 3.1 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 24 Aug 2023
- **Updated:** 30 Sep 2024
- **Also known as:** GHSA-mx47-4mwg-xmmp

## What is CVE-2023-34973?

CVE-2023-34973 is a low-severity vulnerability in Qnap Qts, published on 24 Aug 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

An insufficient entropy vulnerability has been reported to affect QNAP operating systems. If exploited, the vulnerability possibly allows remote users to predict secret via unspecified vectors.

We have already fixed the vulnerability in the following versions:
QTS 5.0.1.2425 build 20230609 and later
QTS 5.1.0.2444 build 20230629 and later
QuTS hero h5.1.0.2424 build 20230609 and later

Weakness: CWE-331 (Insufficient Entropy)

## Which versions are affected by CVE-2023-34973?

It affects 2 products.


Products: Qnap Qts, Qnap Quts Hero.

## How do I fix CVE-2023-34973?

No fix has been published for CVE-2023-34973 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-34973 being exploited?

There is no known exploitation of CVE-2023-34973 in the wild and no public exploit code.

## Other vulnerabilities in Qnap Qts

- [CVE-2020-2509](https://insights.sbomify.com/CVE-2020-2509/): QNAP Network-Attached Storage (NAS) Command Injection (critical 9.8, exploited in the wild)
- [CVE-2018-19949](https://insights.sbomify.com/CVE-2018-19949/): QNAP NAS File Station Command Injection (critical 9.8, exploited in the wild)
- [CVE-2019-7193](https://insights.sbomify.com/CVE-2019-7193/): QNAP QTS Improper Input Validation (critical 9.8, exploited in the wild)
- [CVE-2018-19943](https://insights.sbomify.com/CVE-2018-19943/): QNAP NAS File Station Cross-Site Scripting (high 8.0, exploited in the wild)
- [CVE-2018-19953](https://insights.sbomify.com/CVE-2018-19953/): QNAP NAS File Station Cross-Site Scripting (medium 6.1, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-34973 and fix it if it is affected.

What it is: CVE-2023-34973 is a low-severity vulnerability in Qnap Qts, published on 24 Aug 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2023-34973 in the wild and no public exploit code.

Affected product: Qnap Qts. 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-2023-34973/ (Markdown: https://insights.sbomify.com/CVE-2023-34973/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-34973
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-34973
- OSV: https://osv.dev/vulnerability/CVE-2023-34973

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-34973/
Summaries are generated and may contain mistakes; the official description above is the record.