CVE-2021-22882 Denial of service in UniFi Protect

High 7.5 Published Updated

Attackers can crash the UniFi Protect controller by using spoofed cameras, causing a denial of service for security monitoring systems.

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

What is CVE-2021-22882?

CVE-2021-22882 is a high-severity denial of service vulnerability in UniFi Protect, published on 23 Feb 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

UniFi Protect before v1.17.1 allows an attacker to use spoofed cameras to perform a denial-of-service attack that may cause the UniFi Protect controller to crash.

Weakness: CWE-400

Which versions are affected by CVE-2021-22882?

It affects 1 product.

Products include Ui Unifi Protect Controller.

How do I fix CVE-2021-22882?

No fix has been published for CVE-2021-22882 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2021-22882 being exploited?

There is no known exploitation of CVE-2021-22882 in the wild and no public exploit code.

Sources

Also known as GHSA-9727-xj59-f5g3.

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