Improper access control in Webauthn Framework - CVE-2021-38299

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Main Vulnerability Database Vulnerabilities #VU57649

Improper access control in Webauthn Framework - CVE-2021-38299

Published: October 26, 2021


Vulnerability identifier: #VU57649
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2021-38299
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Web-Authentication
Affected software:
Webauthn Framework

Detailed vulnerability description

The vulnerability allows a remote attacker to gain unauthorized access to sensitive information.

The vulnerability exists due to improper access restrictions. A remote attacker can login to a vulnerable service using an attached FIDO2 authenticator without passing a check of the user presence.


How to mitigate CVE-2021-38299

Install update from vendor's website.

Sources