# CVE-2021-34416: Command injection in Zoom On-Premise Meeting Connector Controller, Zoom On-Premise Meeting Connector MMR, Zoom On-Premise Recording Connector, Zoom On-Premise Virtual Room Connector, Zoom On-Premise Virtual Room Connector Load Balancer

> Remote command injection in Zoom on-premise connectors allows administrators to execute arbitrary commands via unvalidated network configuration inputs.

- **Severity:** Critical 9.8 (`CVSS:3.1/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:** 27 Sep 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-jf82-pm87-qcxg

## What is CVE-2021-34416?

CVE-2021-34416 is a critical command injection vulnerability in Zoom On-Premise Meeting Connector Controller, Zoom On-Premise Meeting Connector MMR, Zoom On-Premise Recording Connector, Zoom On-Premise Virtual Room Connector, Zoom On-Premise Virtual Room Connector Load Balancer, published on 27 Sep 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The network address administrative settings web portal for the Zoom on-premise Meeting Connector before version 4.6.360.20210325, Zoom on-premise Meeting Connector MMR before version 4.6.360.20210325, Zoom on-premise Recording Connector before version 3.8.44.20210326, Zoom on-premise Virtual Room Connector before version 4.4.6752.20210326, and Zoom on-premise Virtual Room Connector Load Balancer before version 2.5.5495.20210326 fails to validate input sent in requests to update the network configuration, which could lead to remote command injection on the on-premise image by the web portal administrators.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2021-34416?

It affects 4 products.


Products: Zoom Meeting Connector, Zoom Recording Connector, Zoom Virtual Room Connector, Zoom Virtual Room Connector Load Balancer.

## How do I fix CVE-2021-34416?

No fix has been published for CVE-2021-34416 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-34416 being exploited?

There is no known exploitation of CVE-2021-34416 in the wild and no public exploit code.

## Other vulnerabilities in Zoom On-Premise Meeting Connector Controller, Zoom On-Premise Meeting Connector MMR, Zoom On-Premise Recording Connector, Zoom On-Premise Virtual Room Connector, Zoom On-Premise Virtual Room Connector Load Balancer

- [CVE-2022-28750](https://insights.sbomify.com/CVE-2022-28750/): Zoom On-Premise Deployments: Stack Buffer Overflow in Meeting Connector (high 7.5)
- [CVE-2021-34415](https://insights.sbomify.com/CVE-2021-34415/): Denial of service in Zoom On-Premise Meeting Connector Controller (high 7.5)
- [CVE-2021-34414](https://insights.sbomify.com/CVE-2021-34414/): Command injection in Zoom on-premise Meeting Connector Controller, Zoom on-premise Meeting Connector MMR, Zoom on-premise Recording Connector, Zoom on-premise Virtual Room Connector, Zoom on-premise Virtual Room Connector Load Balancer (high 7.2)
- [CVE-2022-28753](https://insights.sbomify.com/CVE-2022-28753/): Zoom On-Premise Deployments: Improper Access Control Vulnerability (high 7.1)
- [CVE-2022-28754](https://insights.sbomify.com/CVE-2022-28754/): Zoom On-Premise Deployments: Improper Access Control Vulnerability (high 7.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-34416 and fix it if it is affected.

What it is: CVE-2021-34416 is a critical command injection vulnerability in Zoom On-Premise Meeting Connector Controller, Zoom On-Premise Meeting Connector MMR, Zoom On-Premise Recording Connector, Zoom On-Premise Virtual Room Connector, Zoom On-Premise Virtual Room Connector Load Balancer, published on 27 Sep 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-2021-34416 in the wild and no public exploit code.

Affected product: Zoom On-Premise Meeting Connector Controller, Zoom On-Premise Meeting Connector MMR, Zoom On-Premise Recording Connector, Zoom On-Premise Virtual Room Connector, Zoom On-Premise Virtual Room Connector Load Balancer. 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-2021-34416/ (Markdown: https://insights.sbomify.com/CVE-2021-34416/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-34416
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-34416
- OSV: https://osv.dev/vulnerability/CVE-2021-34416

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-34416/
Summaries are generated and may contain mistakes; the official description above is the record.