CVE-2024-39912
CVE-2024-39912 · Enumeration of valid usernames in web-auth/webauthn-lib
This page contains facts from public vulnerability sources. Check the original advisory before updating.
web-auth/webauthn-lib is an open source set of PHP libraries and a Symfony bundle to allow developers to integrate that authentication mechanism into their web applications. The ProfileBasedRequestOptionsBuilder method returns allowedCredentials without any credentials if no username was found. When WebAuthn is used as the first or only authentication method, an attacker can enumerate usernames based on the absence of the `allowedCredentials` property in the assertion options response. This allows enumeration of valid or invalid usernames. By knowing which usernames are valid, attackers can focus their efforts on a smaller set of potential targets, increasing the efficiency and likelihood of successful attacks. This issue has been addressed in version 4.9.0 and all users are advised to upgrade. There are no known workarounds for this vulnerability.
CVSS 5.3 · Medium · EPSS 0.4% · Fix available
- Published
- Updated
Stack: php
Affected products and versions
webauthn-framework
- Versions
- >= 4.5.0, < 4.9.0: Affected
No fix published
web-auth/webauthn-lib Packagist
- Versions
- 4.5.0
- 4.5.1
- 4.5.2
- 4.6.0
- 4.6.1
- 4.6.2
- 4.6.3
- 4.6.4
- 4.7.0
- 4.7.1
- 4.7.2
- 4.7.3
- 4.7.4
- 4.7.5
- 4.7.6
- 4.7.7
- 4.7.8
- 4.7.9
- 4.8.0
- 4.8.1
- 4.8.2
- 4.8.3
- 4.8.4
- 4.8.5
- 4.8.6
- 4.8.7
- Affected ranges
- ECOSYSTEM: ≥ 4.5.0, < 4.9.0
Update to 4.9.0
web-auth/webauthn-framework Packagist
- Versions
- 4.5.0
- 4.5.1
- 4.5.2
- 4.6.0
- 4.6.1
- 4.6.2
- 4.6.3
- 4.6.4
- 4.7.0
- 4.7.1
- 4.7.2
- 4.7.3
- 4.7.4
- 4.7.5
- 4.7.6
- 4.7.7
- 4.7.8
- 4.7.9
- 4.8.0
- 4.8.1
- 4.8.2
- 4.8.3
- 4.8.4
- 4.8.5
- 4.8.6
- 4.8.7
- Affected ranges
- ECOSYSTEM: ≥ 4.5.0, < 4.9.0
Update to 4.9.0