# CVE-2017-14003: Auth bypass in LAVA Computer MFG Inc. Ether-Serial Link

> Attackers can bypass authentication on LAVA Ether-Serial Link devices by spoofing IP addresses and accessing a specific URL.

- **Severity:** Critical 9.8 (`CVSS:3.0/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:** 11 Oct 2017
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-3g7f-9cp4-6m47

## What is CVE-2017-14003?

CVE-2017-14003 is a critical authentication bypass vulnerability in LAVA Computer MFG Inc. Ether-Serial Link, published on 11 Oct 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An Authentication Bypass by Spoofing issue was discovered in LAVA Ether-Serial Link (ESL) running firmware versions 6.01.00/29.03.2007 and prior versions. An improper authentication vulnerability has been identified, which, if exploited, would allow an attacker with the same IP address to bypass authentication by accessing a specific uniform resource locator.

Weakness: CWE-287 (Improper Authentication), CWE-290 (Authentication Bypass by Spoofing)

## Which versions are affected by CVE-2017-14003?

It affects 1 product.


Products: Lavalink Ether-Serial Link Firmware.

## How do I fix CVE-2017-14003?

No fix has been published for CVE-2017-14003 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-14003 being exploited?

There is no known exploitation of CVE-2017-14003 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-14003 and fix it if it is affected.

What it is: CVE-2017-14003 is a critical authentication bypass vulnerability in LAVA Computer MFG Inc. Ether-Serial Link, published on 11 Oct 2017. 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-2017-14003 in the wild and no public exploit code.

Affected product: LAVA Computer MFG Inc. Ether-Serial Link. 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-2017-14003/ (Markdown: https://insights.sbomify.com/CVE-2017-14003/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-14003
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-14003
- OSV: https://osv.dev/vulnerability/CVE-2017-14003

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From sbomify Insights: https://insights.sbomify.com/CVE-2017-14003/
Summaries are generated and may contain mistakes; the official description above is the record.