# CVE-2018-4028: Path traversal in Novatek

> An attacker can overwrite the root directory via HTTP POST requests, causing a denial of service on the dashcam.

- **Severity:** Medium 5.3 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 13 May 2019
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-8fhx-6cpg-5878

## What is CVE-2018-4028?

CVE-2018-4028 is a medium-severity path traversal vulnerability in Novatek, published on 13 May 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An exploitable firmware update vulnerability exists in the NT9665X Chipset firmware running on the Anker Roav A1 Dashcam, version RoavA1SWV1.9. The HTTP server could allow an attacker to overwrite the root directory of the server, resulting in a denial of service. An attacker can send an HTTP POST request to trigger this vulnerability.

Weakness: CWE-732 (Incorrect Permission Assignment for Critical Resource)

## Which versions are affected by CVE-2018-4028?

It affects 1 product.


Products: Anker-in Roav Dashcam A1 Firmware.

## How do I fix CVE-2018-4028?

No fix has been published for CVE-2018-4028 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-4028 being exploited?

There is no known exploitation of CVE-2018-4028 in the wild and no public exploit code.

## Other vulnerabilities in Novatek

- [CVE-2018-4018](https://insights.sbomify.com/CVE-2018-4018/): File upload in Novatek (critical 10.0)
- [CVE-2018-4023](https://insights.sbomify.com/CVE-2018-4023/): Memory corruption in Novatek (critical 10.0)
- [CVE-2018-4029](https://insights.sbomify.com/CVE-2018-4029/): Memory corruption in Novatek (critical 10.0)
- [CVE-2018-4014](https://insights.sbomify.com/CVE-2018-4014/): Memory corruption in Anker (high 8.0)
- [CVE-2018-4016](https://insights.sbomify.com/CVE-2018-4016/): Memory corruption in Anker (high 8.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-4028 and fix it if it is affected.

What it is: CVE-2018-4028 is a medium-severity path traversal vulnerability in Novatek, published on 13 May 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-2018-4028 in the wild and no public exploit code.

Affected product: Novatek. 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-2018-4028/ (Markdown: https://insights.sbomify.com/CVE-2018-4028/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-4028
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-4028
- OSV: https://osv.dev/vulnerability/CVE-2018-4028

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-4028/
Summaries are generated and may contain mistakes; the official description above is the record.