{
  "document": {
    "aggregate_severity": {
      "text": "mittel"
    },
    "category": "csaf_base",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "de-DE",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "Die YubiKey Produktfamilie bietet L\u00f6sungen f\u00fcr eine Zwei-Faktor-Authentisierung.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein Angreifer mit physischem Zugriff kann eine Schwachstelle in Yubico YubiKey ausnutzen, um Informationen offenzulegen.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Hardware Appliance",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "csaf-provider@cert-bund.de",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2024-2048 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2024/wid-sec-w-2024-2048.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2024-2048 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2024-2048"
      },
      {
        "category": "external",
        "summary": "Yubico Security Advisory vom 2024-09-03",
        "url": "https://www.yubico.com/support/security-advisories/ysa-2024-03/"
      }
    ],
    "source_lang": "en-US",
    "title": "Yubico YubiKey: Schwachstelle erm\u00f6glicht Klonen von Signaturschl\u00fcsseln",
    "tracking": {
      "current_release_date": "2024-09-19T22:00:00.000+00:00",
      "generator": {
        "date": "2024-09-20T09:39:34.722+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.8"
        }
      },
      "id": "WID-SEC-W-2024-2048",
      "initial_release_date": "2024-09-03T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2024-09-03T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2024-09-04T22:00:00.000+00:00",
          "number": "2",
          "summary": "Vulname eingetragen"
        },
        {
          "date": "2024-09-19T22:00:00.000+00:00",
          "number": "3",
          "summary": "Gegenma\u00dfnahmen Text angepasst"
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c2.4.0",
                "product": {
                  "name": "Yubico YubiHSM \u003c2.4.0",
                  "product_id": "T037273"
                }
              },
              {
                "category": "product_version",
                "name": "2.4.0",
                "product": {
                  "name": "Yubico YubiHSM 2.4.0",
                  "product_id": "T037273-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/h:yubico:yubihsm:2.4.0"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c2.4.0 FIPS",
                "product": {
                  "name": "Yubico YubiHSM \u003c2.4.0 FIPS",
                  "product_id": "T037274"
                }
              },
              {
                "category": "product_version",
                "name": "2.4.0 FIPS",
                "product": {
                  "name": "Yubico YubiHSM 2.4.0 FIPS",
                  "product_id": "T037274-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/h:yubico:yubihsm:2.4.0::fips"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "YubiHSM"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "5 Series \u003c5.7",
                "product": {
                  "name": "Yubico YubiKey 5 Series \u003c5.7",
                  "product_id": "T037268"
                }
              },
              {
                "category": "product_version",
                "name": "5 Series 5.7",
                "product": {
                  "name": "Yubico YubiKey 5 Series 5.7",
                  "product_id": "T037268-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:yubico:yubikey:5_series__5.7"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "5 FIPS \u003c5.7",
                "product": {
                  "name": "Yubico YubiKey 5 FIPS \u003c5.7",
                  "product_id": "T037269"
                }
              },
              {
                "category": "product_version",
                "name": "5 FIPS 5.7",
                "product": {
                  "name": "Yubico YubiKey 5 FIPS 5.7",
                  "product_id": "T037269-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:yubico:yubikey:5_fips__5.7"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "5 CSPN \u003c5.7",
                "product": {
                  "name": "Yubico YubiKey 5 CSPN \u003c5.7",
                  "product_id": "T037270"
                }
              },
              {
                "category": "product_version",
                "name": "5 CSPN 5.7",
                "product": {
                  "name": "Yubico YubiKey 5 CSPN 5.7",
                  "product_id": "T037270-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:yubico:yubikey:5_cspn__5.7"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "Bio Series \u003c5.7.2",
                "product": {
                  "name": "Yubico YubiKey Bio Series \u003c5.7.2",
                  "product_id": "T037271"
                }
              },
              {
                "category": "product_version",
                "name": "Bio Series 5.7.2",
                "product": {
                  "name": "Yubico YubiKey Bio Series 5.7.2",
                  "product_id": "T037271-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:yubico:yubikey:bio_series__5.7.2"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "YubiKey"
          }
        ],
        "category": "vendor",
        "name": "Yubico"
      }
    ]
  },
  "vulnerabilities": [
    {
      "notes": [
        {
          "category": "description",
          "text": "Es besteht eine Schwachstelle in Yubico YubiKey. Dieser Fehler wird durch eine Schw\u00e4che in der kryptographischen Bibliothek von Infineon verursacht, die es einem Angreifer mit physischem Besitz des YubiKey erm\u00f6glicht, private Schl\u00fcssel wiederherzustellen. Ein Angreifer mit physischem Zugriff kann diese Schwachstelle ausnutzen, um Schl\u00fcssel mit elliptischen Kurven zu duplizieren, was unter normalen Bedingungen nicht m\u00f6glich sein sollte. Um die Schwachstelle erfolgreich ausnutzen zu k\u00f6nnen, sind Kenntnisse \u00fcber die Zielkonten - einschlie\u00dflich der Authentifizierungsinformationen - und spezielle Ger\u00e4te zur Durchf\u00fchrung des Angriffs erforderlich."
        }
      ],
      "product_status": {
        "known_affected": [
          "T037271",
          "T037273",
          "T037274",
          "T037270",
          "T037268",
          "T037269"
        ]
      },
      "release_date": "2024-09-03T22:00:00.000+00:00"
    }
  ]
}