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CVE-2023-45612

Estado: ModificadaCrítica (9.8)—💥 PoC

In JetBrains Ktor before 2.3.5 default configuration of ContentNegotiation with XML format was vulnerable to XXE

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).

💥 Exploits públicos

Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.

⚠️ Las pruebas de concepto de GitHub no están verificadas: algunas son falsas o contienen malware. No las ejecute nunca fuera de un laboratorio aislado.

Tecnologías afectadas (1)

Jetbrains — Ktor

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2023-45612",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-45612",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-09-19T13:39:11.201954Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "cve@jetbrains.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 8.6,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 4,
        "exploitabilityScore": 3.9
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "cve@jetbrains.com",
      "affectedData": [
        {
          "vendor": "JetBrains",
          "product": "Ktor",
          "versions": [
            {
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              "version": "0",
              "lessThan": "2.3.5",
              "versionType": "semver"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:jetbrains:ktor:*:*:*:*:*:*:*:*"
          ],
          "vendor": "jetbrains",
          "product": "ktor",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "2.3.5",
              "versionType": "semver"
            }
          ],
          "defaultStatus": "unknown"
        }
      ]
    }
  ],
  "published": "2023-10-09T11:15:11.020",
  "references": [
    {
      "url": "https://www.jetbrains.com/privacy-security/issues-fixed/",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "cve@jetbrains.com"
    },
    {
      "url": "https://www.jetbrains.com/privacy-security/issues-fixed/",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "cve@jetbrains.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-611"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-611"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In JetBrains Ktor before 2.3.5 default configuration of ContentNegotiation with XML format was vulnerable to XXE"
    },
    {
      "lang": "es",
      "value": "En JetBrains Ktor anterior a 2.3.5, la configuración predeterminada de ContentNegotiation con formato XML era vulnerable a XXE"
    }
  ],
  "lastModified": "2026-06-17T06:28:55.260",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:jetbrains:ktor:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "BA55E48A-58CF-476E-9377-3D215BCC5050",
              "versionEndExcluding": "2.3.5"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@jetbrains.com"
}