CVE-2019-0201

Description

An issue is present in Apache ZooKeeper 1.0.0 to 3.4.13 and 3.5.0-alpha to 3.5.4-beta. ZooKeeper’s getACL() command doesn’t check any permission when retrieves the ACLs of the requested node and returns all information contained in the ACL Id field as plaintext string. DigestAuthenticationProvider overloads the Id field with the hash value that is used for user authentication. As a consequence, if Digest Authentication is in use, the unsalted hash value will be disclosed by getACL() request for unauthenticated or unprivileged users.

How to fix CVE-2019-0201

To remediate CVE-2019-0201, upgrade the affected package to a fixed version below.

—upgrade to 3.4.13-2 or later
—upgrade to 3.4.9-3+deb8u2 or later
—upgrade to 3.4.9-3+deb9u2 or later
—upgrade to 3.4.14 or later

Is CVE-2019-0201 being exploited?

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

Affected packages (4)

from 0, < 3.4.13-2
from 0, < 3.4.9-3+deb8u2
from 0, < 3.4.9-3+deb9u2
>= 1.0.0, < 3.4.14

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 3.1	MEDIUM5.9	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N