CVE-2020-13920

Description

Apache ActiveMQ uses LocateRegistry.createRegistry() to create the JMX RMI registry and binds the server to the "jmxrmi" entry. It is possible to connect to the registry without authentication and call the rebind method to rebind jmxrmi to something else. If an attacker creates another server to proxy the original, and bound that, he effectively becomes a man in the middle and is able to intercept the credentials when an user connects. Upgrade to Apache ActiveMQ 5.15.12.

How to fix CVE-2020-13920

To remediate CVE-2020-13920, upgrade the affected package to a fixed version below.

—upgrade to 5.15.12 or later
—upgrade to 5.16.0-1 or later
—upgrade to 5.14.3-3+deb9u1 or later
—upgrade to 5.15.16-0+deb10u1 or later
—upgrade to 5.15.12 or later

Is CVE-2020-13920 being exploited?

Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.

Affected packages (5)

from 0, < 5.15.12
from 0, < 5.16.0-1
from 0, < 5.14.3-3+deb9u1
from 0, < 5.15.16-0+deb10u1
from 0, < 5.15.12

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 3.1	MEDIUM5.9	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N