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CVE-2024-22192

Estado: ModificadaMedia (6.5)—

Ursa is a cryptographic library for use with blockchains. The revocation scheme that is part of the Ursa CL-Signatures implementations has a flaw that could impact the privacy guarantees defined by the AnonCreds verifiable credential model. Notably, a malicious verifier may be able to generate a unique identifier for a holder providing a verifiable presentation that includes a Non-Revocation proof. The impact of the flaw is that a malicious verifier may be able to determine a unique identifier for a holder presenting a Non-Revocation proof. Ursa has moved to end-of-life status and no fix is expected.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Hyperledger — Ursa

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2024-22192",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-22192",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-02-14T19:57:42.792215Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.5,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.8
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "baseSeverity": "MEDIUM",
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          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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        "impactScore": 3.6,
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          "vendor": "hyperledger-archives",
          "product": "ursa",
          "versions": [
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              "status": "affected",
              "version": "<= 0.3.7"
            }
          ]
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  ],
  "published": "2024-01-16T22:15:46.220",
  "references": [
    {
      "url": "https://github.com/hyperledger-archives/ursa/security/advisories/GHSA-6698-mhxx-r84g",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/hyperledger-archives/ursa/security/advisories/GHSA-6698-mhxx-r84g",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-327"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Ursa is a cryptographic library for use with blockchains. The revocation scheme that is part of the Ursa CL-Signatures implementations has a flaw that could impact the privacy guarantees defined by the AnonCreds verifiable credential model. Notably, a malicious verifier may be able to generate a unique identifier for a holder providing a verifiable presentation that includes a Non-Revocation proof. The impact of the flaw is that a malicious verifier may be able to determine a unique identifier for a holder presenting a Non-Revocation proof. Ursa has moved to end-of-life status and no fix is expected."
    },
    {
      "lang": "es",
      "value": "Ursa es una librería criptográfica para usar con blockchains. El esquema de revocación que forma parte de las implementaciones de Ursa CL-Signatures tiene un fallo que podría afectar las garantías de privacidad definidas por el modelo de credenciales verificables de AnonCreds. En particular, un verificador malicioso puede generar un identificador único para un titular que proporcione una presentación verificable que incluya una prueba de no revocación. El impacto del fallo es que un verificador malicioso puede determinar un identificador único para un titular que presenta una prueba de no revocación. Ursa ha pasado al estado de fin de vida útil y no se espera ninguna solución."
    }
  ],
  "lastModified": "2026-06-17T07:10:54.470",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "criteria": "cpe:2.3:a:hyperledger:ursa:0.1.0:*:*:*:*:rust:*:*",
              "vulnerable": true,
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            }
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          "operator": "OR"
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  "sourceIdentifier": "security-advisories@github.com"
}