CVE-2024-39912
CVSS V2 None
CVSS V3 None
Description
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.
Overview
- CVE ID
- CVE-2024-39912
- Assigner
- GitHub_M
- Vulnerability Status
- PUBLISHED
- Published Version
- 2024-07-15T19:38:04.824Z
- Last Modified Date
- 2024-07-15T19:38:04.824Z
Weakness Enumerations
References
| Reference URL | Reference Tags |
|---|---|
| https://github.com/web-auth/webauthn-framework/security/advisories/GHSA-875x-g8p7-5w27 | x_refsource_CONFIRM |
| https://github.com/web-auth/webauthn-framework/commit/64de11f6cddc71e56c76e0cc4573bf94d02be045 | x_refsource_MISC |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2024-39912 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-39912 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2024-07-16 13:10:50 | Added to TrackCVE |