# CVE-2021-36307: Privilege escalation in Networking OS

> A low-privileged user can escalate to admin privileges on Dell Networking OS10 devices if the RESTCONF API is enabled.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 20 Nov 2021
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-4xph-r595-wp4r

## What is CVE-2021-36307?

CVE-2021-36307 is a high-severity vulnerability in Dell Networking OS, published on 20 Nov 2021. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Networking OS10, versions prior to October 2021 with RESTCONF API enabled, contains a privilege escalation vulnerability. A malicious low privileged user with specific access to the API could potentially exploit this vulnerability to gain admin privileges on the affected system.

Weakness: CWE-269 (Improper Privilege Management)

## Which versions are affected by CVE-2021-36307?

It affects 1 product.


Products: Dell Networking Os10.

## How do I fix CVE-2021-36307?

No fix has been published for CVE-2021-36307 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-36307 being exploited?

There is no known exploitation of CVE-2021-36307 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-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)
- [CVE-2018-15784](https://insights.sbomify.com/CVE-2018-15784/): DSA-2019-001: Dell Networking OS10 Improper Certificate Validation Vulnerability (high 7.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-36307 and fix it if it is affected.

What it is: CVE-2021-36307 is a high-severity vulnerability in Dell Networking OS, published on 20 Nov 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-36307 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-2021-36307/ (Markdown: https://insights.sbomify.com/CVE-2021-36307/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-36307
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-36307
- OSV: https://osv.dev/vulnerability/CVE-2021-36307

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-36307/
Summaries are generated and may contain mistakes; the official description above is the record.