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Medium

Improper signature counter value handling in webauthn4j-spring-security

Type: advisorySources: OSV

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.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2023-45669
Confirmed fixed CVEs
Not specified
Updated in this feed
3 Nov 2026, 15:52 UTC · Revision 1

Source evidence

Improper signature counter value handling in webauthn4j-spring-security

core-osv · Original source

Published 16 Oct 2023, 18:20 UTC

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.

osv:CVE-2023-45669
Complete source record
{
  "id": "184909d42c2c9514eb64d76cdd53cbf8e318035154733f0e7a2c68f4db3233b3",
  "url": "https://osv.dev/vulnerability/CVE-2023-45669",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Improper signature counter value handling in webauthn4j-spring-security",
    "summary": "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.",
    "evidence": "osv:CVE-2023-45669",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2023-45669",
      "aliases": [
        "CVE-2023-45669",
        "GHSA-v9hx-v6vf-g36j"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/webauthn4j/webauthn4j-spring-security",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "8726269fa6ff781053325983c1c65c949a8df0a5"
                },
                {
                  "fixed": "129700d74d83f9b9a82bf88ebc63707e3cb0a725"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:webauthn4j:spring_security:*:*:*:*:*:spring:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "0.9.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "129700d74d83f9b9a82bf88ebc63707e3cb0a725"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-45669.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:30.469553413Z",
      "provider": "osv",
      "references": [
        "https://www.w3.org/TR/2021/REC-webauthn-2-20210408/#sctn-sign-counter",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/45xxx/CVE-2023-45669.json",
        "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"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-287"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/45xxx/CVE-2023-45669.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-45669",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 497026,
  "published_at": "2023-10-16T18:20:50.301+00:00"
}