# CVE-2021-36308: Auth bypass in Networking OS

> Remote attackers can bypass authentication on Dell Networking OS10 devices with Smart Fabric Services enabled to gain unauthorized access and perform actions.

- **Severity:** Medium 5.9 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/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:** 20 Nov 2021
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-3558-879f-7722

## What is CVE-2021-36308?

CVE-2021-36308 is a medium-severity authentication bypass vulnerability in Dell Networking OS, published on 20 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Networking OS10, versions prior to October 2021 with Smart Fabric Services enabled, contains an authentication bypass vulnerability. A remote unauthenticated attacker could exploit this vulnerability to gain access and perform actions on the affected system.

Weakness: CWE-287 (Improper Authentication), CWE-288 (Authentication Bypass Using an Alternate Path or Channel)

## Which versions are affected by CVE-2021-36308?

It affects 1 product.


Products: Dell Networking Os10.

## How do I fix CVE-2021-36308?

No fix has been published for CVE-2021-36308 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-36308 being exploited?

There is no known exploitation of CVE-2021-36308 in the wild and no public exploit code.

## Other vulnerabilities in Dell Networking OS

- [CVE-2024-25949](https://insights.sbomify.com/CVE-2024-25949/): Privilege escalation in SmartFabric OS10 Software (high 8.8)
- [CVE-2021-36307](https://insights.sbomify.com/CVE-2021-36307/): Privilege escalation in Networking OS (high 8.8)
- [CVE-2018-15778](https://insights.sbomify.com/CVE-2018-15778/): DSA-2019-019: Dell Networking OS10 OS Command Injection Vulnerability (high 8.8)
- [CVE-2021-36306](https://insights.sbomify.com/CVE-2021-36306/): Auth bypass in Networking OS (high 8.1)
- [CVE-2023-39248](https://insights.sbomify.com/CVE-2023-39248/): Denial of service in Dell Networking OS10 (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-36308 and fix it if it is affected.

What it is: CVE-2021-36308 is a medium-severity authentication bypass vulnerability in Dell Networking OS, published on 20 Nov 2021. 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-2021-36308 in the wild and no public exploit code.

Affected product: Dell Networking OS. 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-2021-36308/ (Markdown: https://insights.sbomify.com/CVE-2021-36308/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-36308
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-36308
- OSV: https://osv.dev/vulnerability/CVE-2021-36308

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-36308/
Summaries are generated and may contain mistakes; the official description above is the record.