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

High 7.1 Published Updated

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

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

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

Which versions are affected by CVE-2022-28754?

It affects 1 product.

Products include 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.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2022-28754 being exploited?

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

Sources

Also known as GHSA-gp5g-vm23-75fq.

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