CVE-2021-33900 — Missing encryption in Apache Directory Studio

Description

While investigating DIRSTUDIO-1219 it was noticed that configured StartTLS encryption was not applied when any SASL authentication mechanism (DIGEST-MD5, GSSAPI) was used. While investigating DIRSTUDIO-1220 it was noticed that any configured SASL confidentiality layer was not applied. This issue affects Apache Directory Studio version 2.0.0.v20210213-M16 and prior versions.

How to fix CVE-2021-33900

To remediate CVE-2021-33900, upgrade the affected package to a fixed version below.

—upgrade to 2.0.0.v20210717-M17 or later

Is CVE-2021-33900 being exploited?

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

Affected packages (1)

from 0, < 2.0.0.v20210717-M17

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 3.1	HIGH7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References (2)

ADVISORYnvd.nist.gov/vuln/detail/CVE-2021-33900
WEBlists.apache.org/thread.html/rb1dbcc43a5b406e45d335343a1704f4233de613140a01929d102fdc9%40%3Cusers.directory.apache.org%3E