PT-2021-21069 · Couchbase · Couchbase Server

Published 2021-09-29 · Updated 2022-07-12 · CVE-2021-35943

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: Couchbase Server versions 6.5.x through 6.6.2

Description: The issue concerns Incorrect Access Control in Couchbase Server, where externally managed users are not prevented from using an empty password, contrary to RFC4513 guidelines.

Recommendations: For Couchbase Server versions 6.5.x through 6.6.2, consider restricting access to externally managed users until a proper fix is applied to enforce password requirements according to RFC4513. As a temporary workaround, ensure that all users have a non-empty password to minimize the risk of exploitation.

Fix

Improper Authentication

Weakness Enumeration

CWE-287

Related Identifiers

CVE-2021-35943

Affected Products

Couchbase Server

References · 5

• https://docs.couchbase.com/server/current/release-notes/relnotes.html · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-35943 · Vendor Advisory
• https://couchbase.com/alerts · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-35943 · Security Note
• https://t.me/cibsecurity/29685 · Telegram Post