CVE-2024-39912
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
web-auth/webauthn-libPackagist | >= 4.5.0, < 4.9.0 | 4.9.0 |
web-auth/webauthn-frameworkPackagist | >= 4.5.0, < 4.9.0 | 4.9.0 |
Affected products
3- Range: 4.1.0, 4.3.0, 4.4.0, …
- ghsa-coords2 versions
>= 4.5.0, < 4.9.0+ 1 more
- (no CPE)range: >= 4.5.0, < 4.9.0
- (no CPE)range: >= 4.5.0, < 4.9.0
Patches
Vulnerability mechanics
References
6- github.com/advisories/GHSA-875x-g8p7-5w27ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2024-39912ghsaADVISORY
- github.com/web-auth/webauthn-framework/commit/64de11f6cddc71e56c76e0cc4573bf94d02be045nvdWEB
- github.com/web-auth/webauthn-framework/commit/a9d1352897fba552e659e1445a771dec2d4ed05aghsaWEB
- github.com/web-auth/webauthn-framework/security/advisories/GHSA-875x-g8p7-5w27nvdWEB
- github.com/web-auth/webauthn-lib/commit/b6798de27cdedd8681fe4c9b13ace0ff2456d18bghsaWEB
News mentions
0No linked articles in our index yet.