PT-2021-22020 · Unknown · Webauthn Framework

Published 2021-09-27 · Updated 2022-07-12 · CVE-2021-38299

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: Webauthn Framework versions 3.3.x through 3.3.3

Description: The issue is related to Incorrect Access Control. An attacker controlling a user's system can login to a vulnerable service using an attached FIDO2 authenticator without passing a check of the user presence.

Recommendations: For versions 3.3.x through 3.3.3, update to version 3.3.4 or later to resolve the issue. As a temporary workaround, consider restricting access to FIDO2 authenticators until the update is applied.

Fix

Improper Authentication

Incorrect Authorization

Weakness Enumeration

CWE-287

CWE-863

Related Identifiers

CVE-2021-38299

GHSA-6WHF-Q6P5-84WG

Affected Products

Webauthn Framework

References · 11

• https://osv.dev/vulnerability/CVE-2021-38299 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-6whf-q6p5-84wg · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-38299 · Security Note
• https://github.com/web-auth/webauthn-framework · Note
• https://github.com/web-auth/webauthn-framework/releases · Note
• https://github.com/web-auth/webauthn-framework/commit/572e239c5702667ca52487faf861abc768a46308 · Note
• https://github.com/web-auth/webauthn-framework/releases/tag/v3.3.4 · Note
• https://t.me/cibsecurity/29437 · Telegram Post
• https://fzi.de/en/news/news/detail-en/artikel/fsa-2021-1-fehlende-ueberpruefung-von-user-presence-in-webauthn-framework · Note
• https://t.me/cvenotify/21491 · Telegram Post
• https://t.me/cvenotify/21484 · Telegram Post