CVE-2020-24717 Auth bypass in n/a

High 7.8 Published 27 Aug 2020 Updated 4 Aug 2024

OpenZFS on FreeBSD incorrectly grants user-level permissions to group members, allowing unauthorized access to restricted files.

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-2020-24717?

CVE-2020-24717 is a high-severity authentication bypass vulnerability in n/a, published on 27 Aug 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

OpenZFS before 2.0.0-rc1, when used on FreeBSD, misinterprets group permissions as user permissions, as demonstrated by mode 0770 being equivalent to mode 0777.

Weakness: CWE-276

Which versions are affected by CVE-2020-24717?

It affects 1 product.

Products include Openzfs Openzfs.

How do I fix CVE-2020-24717?

No fix has been published for CVE-2020-24717 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2020-24717 being exploited?

There is no known exploitation of CVE-2020-24717 in the wild and no public exploit code.

Sources

Also known as GHSA-775v-2pmh-c7ch.