CVE-2023-45669

Improper signature counter value handling in webauthn4j-spring-security

Description

WebAuthn4J Spring Security provides Web Authentication specification support for Spring applications. Affected versions are subject to improper signature counter value handling. 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. This issue has been addressed in version `0.9.1.RELEASE`. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Category

4.8
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.40%
Vendor Advisory github.com
Affected: webauthn4j webauthn4j-spring-security
Published at:
Updated at:

References

Link Tags
https://github.com/webauthn4j/webauthn4j-spring-security/security/advisories/GHSA-v9hx-v6vf-g36j vendor advisory
https://github.com/webauthn4j/webauthn4j-spring-security/commit/129700d74d83f9b9a82bf88ebc63707e3cb0a725 patch
https://www.w3.org/TR/2021/REC-webauthn-2-20210408/#sctn-sign-counter technical description

Frequently Asked Questions

What is the severity of CVE-2023-45669?
CVE-2023-45669 has been scored as a medium severity vulnerability.
How to fix CVE-2023-45669?
To fix CVE-2023-45669, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-45669 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-45669 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-45669?
CVE-2023-45669 affects webauthn4j webauthn4j-spring-security.
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