CVE-2020-5895 Misconfiguration in NGINX Controller

High 7.8 Published Updated

Local attackers can cause a denial of service in NGINX Controller by writing malformed data to a socket with insecure permissions.

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-2020-5895?

CVE-2020-5895 is a high-severity vulnerability in NGINX Controller, published on 7 May 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

On NGINX Controller versions 3.1.0-3.3.0, AVRD uses world-readable and world-writable permissions on its socket, which allows processes or users on the local system to write arbitrary data into the socket. A local system attacker can make AVRD segmentation fault (SIGSEGV) by writing malformed messages to the socket.

Weakness: CWE-732

Which versions are affected by CVE-2020-5895?

It affects 1 product.

Products include F5 Nginx Controller.

How do I fix CVE-2020-5895?

No fix has been published for CVE-2020-5895 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-5895 being exploited?

There is no known exploitation of CVE-2020-5895 in the wild and no public exploit code.

Sources

Also known as GHSA-359f-64m6-vf7p.

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