# CVE-2021-33017: Philips IntelliBridge EC 40 and EC 80 Hub Authentication Bypass Using an Alternate Path or Channel

> Attackers can bypass authentication via an alternate path in Philips IntelliBridge EC Hubs, gaining unauthorized access to the medical device infrastructure.

- **Severity:** High 8.1 (`CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/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:** 27 Dec 2021
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-mcf9-rwvw-cv27

## What is CVE-2021-33017?

CVE-2021-33017 is a high-severity authentication bypass vulnerability in Philips IntelliBridge EC 40 Hub, published on 27 Dec 2021. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

The standard access path of the IntelliBridge EC 40 and 60 Hub (C.00.04 and prior) requires authentication, but the product has an alternate path or channel that does not require authentication.

Weakness: CWE-288 (Authentication Bypass Using an Alternate Path or Channel)

## Which versions are affected by CVE-2021-33017?

It affects 2 products.


Products: Philips Intellibridge Ec40 Firmware, Philips Intellibridge Ec80 Firmware.

## How do I fix CVE-2021-33017?

No fix has been published for CVE-2021-33017 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-33017 being exploited?

There is no known exploitation of CVE-2021-33017 in the wild and no public exploit code.

## Other vulnerabilities in Philips IntelliBridge EC 40 Hub

- [CVE-2021-32993](https://insights.sbomify.com/CVE-2021-32993/): Philips IntelliBridge EC 40 and EC 80 Hub Use of Hard-coded Credentials (high 8.1)
- [CVE-2019-18241](https://insights.sbomify.com/CVE-2019-18241/): Weak cryptography in Philips IntelliBridge EC40 and EC80 (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-33017 and fix it if it is affected.

What it is: CVE-2021-33017 is a high-severity authentication bypass vulnerability in Philips IntelliBridge EC 40 Hub, published on 27 Dec 2021. 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-2021-33017 in the wild and no public exploit code.

Affected product: Philips IntelliBridge EC 40 Hub. 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-2021-33017/ (Markdown: https://insights.sbomify.com/CVE-2021-33017/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-33017
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-33017
- OSV: https://osv.dev/vulnerability/CVE-2021-33017

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-33017/
Summaries are generated and may contain mistakes; the official description above is the record.