NetSight
medium4.8

CVE-2023-45669

WebAuthn4J Spring Security Improper signature counter value handling

Impact

Improper signature counter value handling ### Impact A flaw was found in webauthn4j-spring-security-core. When an authneticator returns an incremented signature counter value during authentication, webauthn4j-spring-security-core does not properly persist the value, which means cloned authenticator detection does not work. An attacker who cloned valid authenticator in some way can use the cloned authenticator without being detected. ### Patches Please upgrade to `com.webauthn4j:webauthn4j-spring-security-core:0.9.1.RELEASE` ### References For more details about WebAuthn signature counters, see [WebAuthn specification 6.1.1. Signature Counter Considerations](https://www.w3.org/TR/2021/REC-webauthn-2-20210408/#sctn-sign-counter). ### Reporter This issue was discovered by Michael Budnick (@mbudnick)

Affected packages

EcosystemPackageAffectedFixed in
mavencom.webauthn4j:webauthn4j-spring-security-core< 0.9.1.RELEASE0.9.1.RELEASE

Affected products

VendorProductAffected versions
Webauthn4jSpring Security
before 0.9.1

Weakness classification

References