# CVE-2019-7183: Path traversal in QNAP NAS devices

> Remote attackers can access system files on QNAP NAS devices due to improper link resolution, requiring a firmware update.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 5 Dec 2019
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-7wcc-2hfr-r5m7

## What is CVE-2019-7183?

CVE-2019-7183 is a critical path traversal vulnerability in Qnap Qts, published on 5 Dec 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

This improper link resolution vulnerability allows remote attackers to access system files. To fix this vulnerability, QNAP recommend updating QTS to their latest versions.

Weakness: CWE-59 (Improper Link Resolution Before File Access)

## Which versions are affected by CVE-2019-7183?

It affects 1 product.


Products: Qnap Qts.

## How do I fix CVE-2019-7183?

No fix has been published for CVE-2019-7183 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-7183 being exploited?

There is no known exploitation of CVE-2019-7183 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-2019-7183 and fix it if it is affected.

What it is: CVE-2019-7183 is a critical path traversal vulnerability in Qnap Qts, published on 5 Dec 2019. 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-2019-7183 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-2019-7183/ (Markdown: https://insights.sbomify.com/CVE-2019-7183/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-7183
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-7183
- OSV: https://osv.dev/vulnerability/CVE-2019-7183

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-7183/
Summaries are generated and may contain mistakes; the official description above is the record.