Ecosyste.ms: Advisories

Security Advisories: GSA_kwCzR0hTQS12OWh4LXY2dmYtZzM2as4AA2gT

WebAuthn4J Spring Security Improper signature counter value handling

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.

Reporter

This issue was discovered by Michael Budnick (@mbudnick)

Permalink: https://github.com/advisories/GHSA-v9hx-v6vf-g36j
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS12OWh4LXY2dmYtZzM2as4AA2gT
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: about 1 year ago
Updated: about 1 year ago

CVSS Score: 4.8
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

EPSS Percentage: 0.00079
EPSS Percentile: 0.35585

Identifiers: GHSA-v9hx-v6vf-g36j, CVE-2023-45669
References:

• https://github.com/webauthn4j/webauthn4j-spring-security/security/advisories/GHSA-v9hx-v6vf-g36j
• https://nvd.nist.gov/vuln/detail/CVE-2023-45669
• https://github.com/webauthn4j/webauthn4j-spring-security/commit/129700d74d83f9b9a82bf88ebc63707e3cb0a725
• https://www.w3.org/TR/2021/REC-webauthn-2-20210408/#sctn-sign-counter
• https://github.com/advisories/GHSA-v9hx-v6vf-g36j

Repository: https://github.com/webauthn4j/webauthn4j-spring-security
Blast Radius: 0.0

Affected Packages