# CVE-2024-47044: Missing authorization in Hikari Denwa router PR-400MI

> Attackers can access device settings via WAN IPv6 due to insufficient access restrictions on NTT East Hikari Denwa routers.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/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:** 26 Sep 2024
- **Updated:** 17 Oct 2024
- **Also known as:** GHSA-5ggj-j87m-p7xh

## What is CVE-2024-47044?

CVE-2024-47044 is a medium-severity missing authorization vulnerability in NIPPON TELEGRAPH AND TELEPHONE EAST CORPORATION Hikari Denwa router PR-400MI, published on 26 Sep 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Multiple Home GateWay/Hikari Denwa routers provided by NIPPON TELEGRAPH AND TELEPHONE EAST CORPORATION are vulnerable to insufficient access restrictions for Device Setting pages. If this vulnerability is exploited, an attacker who identified WAN-side IPv6 address may access the product's Device Setting page via WAN-side. Note that, the same products are also provided by NIPPON TELEGRAPH AND TELEPHONE WEST CORPORATION, but the vulnerability only affects products subscribed and used in NIPPON TELEGRAPH AND TELEPHONE EAST CORPORATION areas.

Weakness: CWE-451 (User Interface (UI) Misrepresentation of Critical Information)

## Which versions are affected by CVE-2024-47044?


## How do I fix CVE-2024-47044?

No fix has been published for CVE-2024-47044 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-47044 being exploited?

There is no known exploitation of CVE-2024-47044 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-47044 and fix it if it is affected.

What it is: CVE-2024-47044 is a medium-severity missing authorization vulnerability in NIPPON TELEGRAPH AND TELEPHONE EAST CORPORATION Hikari Denwa router PR-400MI, published on 26 Sep 2024. 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-2024-47044 in the wild and no public exploit code.

Affected product: NIPPON TELEGRAPH AND TELEPHONE EAST CORPORATION Hikari Denwa router PR-400MI. 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-2024-47044/ (Markdown: https://insights.sbomify.com/CVE-2024-47044/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-47044
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-47044
- OSV: https://osv.dev/vulnerability/CVE-2024-47044

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From sbomify Insights: https://insights.sbomify.com/CVE-2024-47044/
Summaries are generated and may contain mistakes; the official description above is the record.