# CVE-2021-34362: Command Injection Vulnerability in Media Streaming Add-on

> Remote attackers can execute arbitrary commands on QNAP devices via the Media Streaming add-on, requiring an upgrade to patched versions.

- **Severity:** High 8.7 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 22 Oct 2021
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-rfgr-8gxv-c42h

## What is CVE-2021-34362?

CVE-2021-34362 is a high-severity command injection vulnerability in QNAP Systems Inc. Media Streaming add-on, published on 22 Oct 2021. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

A command injection vulnerability has been reported to affect QNAP device running Media Streaming add-on. If exploited, this vulnerability allow remote attackers to run arbitrary commands. We have already fixed this vulnerability in the following versions of Media Streaming add-on: QTS 5.0.0: Media Streaming add-on 500.0.0.3 ( 2021/08/20 ) and later QTS 4.5.4: Media Streaming add-on 500.0.0.3 ( 2021/08/20 ) and later QTS 4.3.6: Media Streaming add-on 430.1.8.12 ( 2021/08/20 ) and later QTS 4.3.3: Media Streaming add-on 430.1.8.12 ( 2021/09/29 ) and later QuTS-Hero 5.0.0: Media Streaming add-on 500.0.0.3 ( 2021/08/20 ) and later

Weakness: CWE-77 (Improper Neutralization of Special Elements used in a Command), CWE-78 (Improper Neutralization of Special Elements used in an OS Command)

## Which versions are affected by CVE-2021-34362?

It affects 1 product.


Products: Qnap Media Streaming Add-On.

## How do I fix CVE-2021-34362?

No fix has been published for CVE-2021-34362 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-34362 being exploited?

There is no known exploitation of CVE-2021-34362 in the wild and no public exploit code.

## Other vulnerabilities in QNAP Systems Inc. Media Streaming add-on

- [CVE-2020-36195](https://insights.sbomify.com/CVE-2020-36195/): SQL Injection Vulnerability in Multimedia Console and the Media Streaming Add-On (critical 9.8)
- [CVE-2017-7640](https://insights.sbomify.com/CVE-2017-7640/): Command injection in QNAP Media Streaming Add-On (critical 9.8)
- [CVE-2023-47222](https://insights.sbomify.com/CVE-2023-47222/): Media Streaming add-on (critical 9.6)
- [CVE-2023-23369](https://insights.sbomify.com/CVE-2023-23369/): QTS, Multimedia Console, and Media Streaming add-on (critical 9.0)
- [CVE-2017-7641](https://insights.sbomify.com/CVE-2017-7641/): Cross-site request forgery in QNAP Media Streaming Add-On (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-34362 and fix it if it is affected.

What it is: CVE-2021-34362 is a high-severity command injection vulnerability in QNAP Systems Inc. Media Streaming add-on, published on 22 Oct 2021. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-34362 in the wild and no public exploit code.

Affected product: QNAP Systems Inc. Media Streaming add-on. 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-2021-34362/ (Markdown: https://insights.sbomify.com/CVE-2021-34362/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-34362
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-34362
- OSV: https://osv.dev/vulnerability/CVE-2021-34362

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-34362/
Summaries are generated and may contain mistakes; the official description above is the record.