# CVE-2017-7638: Auth bypass in QNAP Media Streaming Add-On

> Unauthenticated attackers can modify Media Streaming settings and leak sensitive information on QNAP NAS devices.

- **Severity:** Medium 6.5 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 8 Mar 2018
- **Updated:** 17 Sep 2024
- **Also known as:** GHSA-jm5g-5386-4p5f

## What is CVE-2017-7638?

CVE-2017-7638 is a medium-severity authentication bypass vulnerability in QNAP Media Streaming Add-On, published on 8 Mar 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

QNAP NAS application Media Streaming add-on version 421.1.0.2, 430.1.2.0, and earlier does not authenticate requests properly. Successful exploitation could lead to change of the Media Streaming settings, and leakage of sensitive information of the QNAP NAS.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2017-7638?

It affects 1 product.


Products: Qnap Media Streaming Add-On.

## How do I fix CVE-2017-7638?

No fix has been published for CVE-2017-7638 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-7638 being exploited?

There is no known exploitation of CVE-2017-7638 in the wild and no public exploit code.

## Other vulnerabilities in QNAP 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-2017-7638 and fix it if it is affected.

What it is: CVE-2017-7638 is a medium-severity authentication bypass vulnerability in QNAP Media Streaming Add-On, published on 8 Mar 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2017-7638 in the wild and no public exploit code.

Affected product: QNAP 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-2017-7638/ (Markdown: https://insights.sbomify.com/CVE-2017-7638/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-7638
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-7638
- OSV: https://osv.dev/vulnerability/CVE-2017-7638

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-7638/
Summaries are generated and may contain mistakes; the official description above is the record.