CVE-2019-15876 Missing authorization in FreeBSD

Medium 5.5 Published 28 Apr 2020 Updated 5 Aug 2024

Unprivileged users can send passthrough commands to device firmware due to missing privilege checks in the FreeBSD oce network driver.

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-2019-15876?

CVE-2019-15876 is a medium-severity missing authorization vulnerability in Freebsd Freebsd, published on 28 Apr 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In FreeBSD 12.1-STABLE before r356089, 12.1-RELEASE before 12.1-RELEASE-p3, 11.3-STABLE before r356090, and 11.3-RELEASE before 11.3-RELEASE-p7, driver specific ioctl command handlers in the oce network driver failed to check whether the caller has sufficient privileges allowing unprivileged users to send passthrough commands to the device firmware.

Weakness: CWE-862

Which versions are affected by CVE-2019-15876?

It affects 1 product.

Products include Freebsd Freebsd.

How do I fix CVE-2019-15876?

No fix has been published for CVE-2019-15876 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2019-15876 being exploited?

There is no known exploitation of CVE-2019-15876 in the wild and no public exploit code.

All Freebsd Freebsd vulnerabilities

Sources

Also known as GHSA-8hqg-3q4j-8px9.