CVE-2017-14387 Security feature bypass in EMC Isilon OneFS EMC Isilon OneFS 8.1.0.0, EMC Isilon OneFS 8.0.1.0 -- 8.0.1.1, EMC Isilon OneFS 8.0.0.0 8.0.0.4

Medium 6.5 Published 20 Dec 2017 Updated 5 Aug 2024

NFS clients may access exports using weaker default security settings despite administrator configuration, bypassing intended authentication controls.

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-2017-14387?

CVE-2017-14387 is a medium-severity vulnerability in EMC Isilon OneFS EMC Isilon OneFS 8.1.0.0, EMC Isilon OneFS 8.0.1.0 -- 8.0.1.1, EMC Isilon OneFS 8.0.0.0 8.0.0.4, published on 20 Dec 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The NFS service in EMC Isilon OneFS 8.1.0.0, 8.0.1.0 - 8.0.1.1, and 8.0.0.0 - 8.0.0.4 maintains default NFS export settings (including the NFS export security flavor for authentication) that can be leveraged by current and future NFS exports. This NFS service contained a flaw that did not properly propagate changes made to the default security flavor to all new and existing NFS exports that are configured to use default NFS export settings and that are mounted after those changes are made. This flaw may potentially allow NFS clients to access affected NFS exports using the default and potentially weaker security flavor even if a more secure one was selected to be used by the OneFS administrator, aka an "NFS Export Security Setting Fallback Vulnerability."

Which versions are affected by CVE-2017-14387?

It affects 1 product.

Products include Emc Isilon Onefs.

How do I fix CVE-2017-14387?

No fix has been published for CVE-2017-14387 yet. Limit exposure of the affected software until one is available.

Is CVE-2017-14387 being exploited?

There is no known exploitation of CVE-2017-14387 in the wild and no public exploit code.

Sources

Also known as GHSA-c7vw-9fhg-crj3.