# CVE-2018-0676: Auth bypass in BN-SDWBP3

> An attacker on the same network can bypass authentication to access the management screen and execute arbitrary commands on Panasonic BN-SDWBP3 devices.

- **Severity:** High 8.8 (`CVSS:3.0/AV:A/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:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 9 Jan 2019
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-gfjg-c4fv-56hq

## What is CVE-2018-0676?

CVE-2018-0676 is a high-severity authentication bypass vulnerability in Panasonic Corporation BN-SDWBP3, published on 9 Jan 2019. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

BN-SDWBP3 firmware version 1.0.9 and earlier allows an attacker on the same network segment to bypass authentication to access to the management screen and execute an arbitrary command via unspecified vectors.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2018-0676?

It affects 1 product.


Products: Panasonic Bn-Sdwbp3 Firmware.

## How do I fix CVE-2018-0676?

No fix has been published for CVE-2018-0676 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-0676 being exploited?

There is no known exploitation of CVE-2018-0676 in the wild and no public exploit code.

## Other vulnerabilities in Panasonic Corporation BN-SDWBP3

- [CVE-2018-0677](https://insights.sbomify.com/CVE-2018-0677/): Command injection in BN-SDWBP3 (medium 6.8)
- [CVE-2018-0678](https://insights.sbomify.com/CVE-2018-0678/): Memory corruption in BN-SDWBP3 (medium 6.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-0676 and fix it if it is affected.

What it is: CVE-2018-0676 is a high-severity authentication bypass vulnerability in Panasonic Corporation BN-SDWBP3, published on 9 Jan 2019. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2018-0676 in the wild and no public exploit code.

Affected product: Panasonic Corporation BN-SDWBP3. 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-2018-0676/ (Markdown: https://insights.sbomify.com/CVE-2018-0676/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-0676
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-0676
- OSV: https://osv.dev/vulnerability/CVE-2018-0676

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-0676/
Summaries are generated and may contain mistakes; the official description above is the record.