« Volver al listado

CVE-2023-0842

Estado: ModificadaMedia (5.3)—

La versión 0.4.23 de xml2js permite a un atacante externo editar o añadir nuevas propiedades a un objeto. Esto es posible porque la aplicación no valida correctamente las claves JSON entrantes, lo que permite modificar la propiedad __proto__.

Traducción automática del texto original de NVD (en inglés).

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)

Xml2js Project — Xml2js

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2023-0842",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-0842",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-02-13T19:12:29.183636Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 3.9
      },
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "help@fluidattacks.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "xml2js",
          "versions": [
            {
              "status": "affected",
              "version": "0.4.23"
            }
          ],
          "packageName": "node-xml2js",
          "collectionURL": "https://registry.npmjs.org",
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2023-04-05T20:15:07.493",
  "references": [
    {
      "url": "https://fluidattacks.com/advisories/myers/",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "help@fluidattacks.com"
    },
    {
      "url": "https://github.com/Leonidas-from-XIV/node-xml2js/",
      "tags": [
        "Product"
      ],
      "source": "help@fluidattacks.com"
    },
    {
      "url": "https://github.com/Leonidas-from-XIV/node-xml2js/releases/tag/0.6.2",
      "source": "help@fluidattacks.com"
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2024/03/msg00013.html",
      "source": "help@fluidattacks.com"
    },
    {
      "url": "https://fluidattacks.com/advisories/myers/",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/Leonidas-from-XIV/node-xml2js/",
      "tags": [
        "Product"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2024/03/msg00013.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-1321"
        }
      ]
    },
    {
      "type": "Secondary",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "description": [
        {
          "lang": "en",
          "value": "CWE-1321"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "xml2js version 0.4.23 allows an external attacker to edit or add new properties to an object. This is possible because the application does not properly validate incoming JSON keys, thus allowing the __proto__ property to be edited."
    }
  ],
  "lastModified": "2026-06-17T05:26:26.057",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:xml2js_project:xml2js:0.4.23:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "70BD0806-8B12-4AE6-B83D-95A30A40E3C1"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "help@fluidattacks.com"
}