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CVE-2025-29774

Estado: AplazadaCrítica (9.3)—

xml-crypto is an XML digital signature and encryption library for Node.js. An attacker may be able to exploit a vulnerability in versions prior to 6.0.1, 3.2.1, and 2.1.6 to bypass authentication or authorization mechanisms in systems that rely on xml-crypto for verifying signed XML documents. The vulnerability allows an attacker to modify a valid signed XML message in a way that still passes signature verification checks.

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For example, it could be used to alter critical identity or access control attributes, enabling an attacker with a valid account to escalate privileges or impersonate another user. Users of versions 6.0.0 and prior should upgrade to version 6.0.1 to receive a fix. Those who are still using v2.x or v3.x should upgrade to patched versions 2.1.6 or 3.2.1, respectively.

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Vulnerabilidad en librería Node.js de validación de firmas XML (CWE-347) accesible remotamente sin autenticación (AV:N/PR:N/UI:N). Permite alterar mensajes XML firmados válidos para eludir verificación de autenticidad (T1553.006) y escalar privilegios modificando atributos de control de acceso (T154

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Privileged Account ManagementUpdate SoftwareVulnerability ScanningUser Account ManagementRestrict File and Directory PermissionsRestrict Registry Permissions

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Xml-crypto — Xml-cryptoAI

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2025-29774",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-29774",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-03-14T18:36:19.111763Z"
        }
      }
    ],
    "cvssMetricV40": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "Safety": "NOT_DEFINED",
          "version": "4.0",
          "Recovery": "NOT_DEFINED",
          "baseScore": 9.3,
          "Automatable": "NOT_DEFINED",
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "exploitMaturity": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "privilegesRequired": "NONE",
          "subIntegrityImpact": "NONE",
          "vulnIntegrityImpact": "HIGH",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "vulnAvailabilityImpact": "HIGH",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "subConfidentialityImpact": "NONE",
          "vulnConfidentialityImpact": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
        }
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "node-saml",
          "product": "xml-crypto",
          "versions": [
            {
              "status": "affected",
              "version": ">= 4.0.0, < 6.0.1"
            },
            {
              "status": "affected",
              "version": ">= 3.0.0, < 3.2.1"
            },
            {
              "status": "affected",
              "version": "< 2.1.6"
            }
          ]
        }
      ]
    }
  ],
  "published": "2025-03-14T17:15:52.870",
  "references": [
    {
      "url": "https://github.com/node-saml/xml-crypto/commit/28f92218ecbb8dcbd238afa4efbbd50302aa9aed",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/node-saml/xml-crypto/commit/886dc63a8b4bb5ae1db9f41c7854b171eb83aa98",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/node-saml/xml-crypto/commit/8ac6118ee7978b46aa56b82cbcaa5fca58c93a07",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/node-saml/xml-crypto/releases/tag/v2.1.6",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/node-saml/xml-crypto/releases/tag/v3.2.1",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/node-saml/xml-crypto/releases/tag/v6.0.1",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/node-saml/xml-crypto/security/advisories/GHSA-9p8x-f768-wp2g",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://workos.com/blog/samlstorm",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-347"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "xml-crypto is an XML digital signature and encryption library for Node.js. An attacker may be able to exploit a vulnerability in versions prior to 6.0.1, 3.2.1, and 2.1.6 to bypass authentication or authorization mechanisms in systems that rely on xml-crypto for verifying signed XML documents. The vulnerability allows an attacker to modify a valid signed XML message in a way that still passes signature verification checks. For example, it could be used to alter critical identity or access control attributes, enabling an attacker with a valid account to escalate privileges or impersonate another user. Users of versions 6.0.0 and prior should upgrade to version 6.0.1 to receive a fix. Those who are still using v2.x or v3.x should upgrade to patched versions 2.1.6 or 3.2.1, respectively."
    },
    {
      "lang": "es",
      "value": "xml-crypto es una librería de firma digital y cifrado XML para Node.js. Un atacante podría explotar una vulnerabilidad en versiones anteriores a la 6.0.1, 3.2.1 y 2.1.6 para eludir los mecanismos de autenticación o autorización en sistemas que dependen de xml-crypto para verificar documentos XML firmados. Esta vulnerabilidad permite a un atacante modificar un mensaje XML firmado válido de forma que aún supere las comprobaciones de verificación de firma. Por ejemplo, podría utilizarse para alterar atributos críticos de identidad o control de acceso, lo que permitiría a un atacante con una cuenta válida escalar privilegios o suplantar la identidad de otro usuario. Los usuarios de las versiones 6.0.0 y anteriores deben actualizar a la versión 6.0.1 para obtener una corrección. Quienes aún utilicen las versiones 2.x o 3.x deben actualizar a las versiones 2.1.6 o 3.2.1, respectivamente."
    }
  ],
  "lastModified": "2026-06-17T09:05:38.920",
  "sourceIdentifier": "security-advisories@github.com"
}