# CVE-2022-34402: Denial of service in Wyse Proprietary OS (Modern ThinOS)

> An admin privilege attacker can cause denial of service in Dell Wyse ThinOS via a Regular Expression vulnerability in the UI.

- **Severity:** Medium 6.8 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 10 Oct 2022
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-v6q3-cj4x-h42r

## What is CVE-2022-34402?

CVE-2022-34402 is a medium-severity denial of service vulnerability in Dell Wyse Proprietary OS (Modern ThinOS), published on 10 Oct 2022. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

Dell Wyse ThinOS 2205 contains a Regular Expression Denial of Service Vulnerability in UI. An admin privilege attacker could potentially exploit this vulnerability, leading to denial-of-service.

Weakness: CWE-1333 (Inefficient Regular Expression Complexity)

## Which versions are affected by CVE-2022-34402?

It affects 1 product.


Products: Dell Wyse Thinos.

## How do I fix CVE-2022-34402?

No fix has been published for CVE-2022-34402 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-34402 being exploited?

There is no known exploitation of CVE-2022-34402 in the wild and no public exploit code.

## Other vulnerabilities in Dell Wyse Proprietary OS (Modern ThinOS)

- [CVE-2020-29491](https://insights.sbomify.com/CVE-2020-29491/): Misconfiguration in Wyse Proprietary OS (ThinOS) (critical 10.0)
- [CVE-2020-29492](https://insights.sbomify.com/CVE-2020-29492/): Misconfiguration in Wyse Proprietary OS (ThinOS) (critical 10.0)
- [CVE-2024-42427](https://insights.sbomify.com/CVE-2024-42427/): Command injection in Wyse Proprietary OS (Modern ThinOS) (high 7.6)
- [CVE-2021-21597](https://insights.sbomify.com/CVE-2021-21597/): Information disclosure in Wyse ThinOS (high 7.2)
- [CVE-2023-32446](https://insights.sbomify.com/CVE-2023-32446/): Information disclosure in Wyse Proprietary OS (Modern ThinOS) (medium 5.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-34402 and fix it if it is affected.

What it is: CVE-2022-34402 is a medium-severity denial of service vulnerability in Dell Wyse Proprietary OS (Modern ThinOS), published on 10 Oct 2022. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2022-34402 in the wild and no public exploit code.

Affected product: Dell Wyse Proprietary OS (Modern ThinOS). 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-2022-34402/ (Markdown: https://insights.sbomify.com/CVE-2022-34402/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-34402
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-34402
- OSV: https://osv.dev/vulnerability/CVE-2022-34402

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-34402/
Summaries are generated and may contain mistakes; the official description above is the record.