CVE-2021-23020 Weak cryptography in Nginx Controller

Medium 5.5 Published Updated

Insecure API key generation in Nginx Controller allows attackers to predict keys and bypass authentication or take over accounts.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2021-23020?

CVE-2021-23020 is a medium-severity vulnerability in Nginx Controller, published on 1 Jun 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The NAAS 3.x before 3.10.0 API keys were generated using an insecure pseudo-random string and hashing algorithm which could lead to predictable keys.

Weakness: CWE-330

Which versions are affected by CVE-2021-23020?

It affects 1 product.

Products include F5 Nginx Controller.

How do I fix CVE-2021-23020?

No fix has been published for CVE-2021-23020 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-23020 being exploited?

There is no known exploitation of CVE-2021-23020 in the wild and no public exploit code.

Sources

Also known as GHSA-xg8h-3f53-j5px.

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