# CVE-2022-28754: Zoom On-Premise Deployments: Improper Access Control Vulnerability

> Attackers can join meetings invisibly, admit themselves, and gain host privileges to disrupt sessions in Zoom On-Premise Meeting Connector MMR.

- **Severity:** High 7.1 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N`)
- **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:** 11 Aug 2022
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-gp5g-vm23-75fq

## What is CVE-2022-28754?

CVE-2022-28754 is a high-severity missing authorization vulnerability in Zoom On-Premise Meeting Connector MMR, published on 11 Aug 2022. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Zoom On-Premise Meeting Connector MMR before version 4.8.129.20220714 contains an improper access control vulnerability. As a result, a malicious actor can join a meeting which they are authorized to join without appearing to the other participants, can admit themselves into the meeting from the waiting room, and can become host and cause other meeting disruptions.

Weakness: CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2022-28754?

It affects 1 product.


Products: Zoom Meeting Connector.

## How do I fix CVE-2022-28754?

No fix has been published for CVE-2022-28754 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-28754 being exploited?

There is no known exploitation of CVE-2022-28754 in the wild and no public exploit code.

## Other vulnerabilities in Zoom On-Premise Meeting Connector MMR

- [CVE-2021-34416](https://insights.sbomify.com/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 (critical 9.8)
- [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)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-28754 and fix it if it is affected.

What it is: CVE-2022-28754 is a high-severity missing authorization vulnerability in Zoom On-Premise Meeting Connector MMR, published on 11 Aug 2022. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2022-28754 in the wild and no public exploit code.

Affected product: Zoom On-Premise Meeting Connector MMR. 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-2022-28754/ (Markdown: https://insights.sbomify.com/CVE-2022-28754/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-28754
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-28754
- OSV: https://osv.dev/vulnerability/CVE-2022-28754

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From sbomify Insights: https://insights.sbomify.com/CVE-2022-28754/
Summaries are generated and may contain mistakes; the official description above is the record.