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CVE-2020-5404

Estado: ModificadaMedia (5.9)—

The HttpClient from Reactor Netty, versions 0.9.x prior to 0.9.5, and versions 0.8.x prior to 0.8.16, may be used incorrectly, leading to a credentials leak during a redirect to a different domain. In order for this to happen, the HttpClient must have been explicitly configured to follow redirects.

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)

Broadcom — Reactor Netty

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2020-5404",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.9,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:S/C:P/I:P/A:N",
          "authentication": "SINGLE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 4.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 6.8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Secondary",
        "source": "security@pivotal.io",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.0",
          "baseScore": 6.5,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 4.7,
        "exploitabilityScore": 1.3
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.9,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 4.2,
        "exploitabilityScore": 1.6
      }
    ]
  },
  "affected": [
    {
      "source": "security@pivotal.io",
      "affectedData": [
        {
          "vendor": "Pivotal",
          "product": "Reactor Netty",
          "versions": [
            {
              "status": "affected",
              "version": "0.8",
              "lessThan": "v0.8.16.RELEASE",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "0.9",
              "lessThan": "v0.9.5.RELEASE",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2020-03-03T18:15:12.157",
  "references": [
    {
      "url": "https://pivotal.io/security/cve-2020-5404",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "security@pivotal.io"
    },
    {
      "url": "https://pivotal.io/security/cve-2020-5404",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security@pivotal.io",
      "description": [
        {
          "lang": "en",
          "value": "CWE-522"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-522"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The HttpClient from Reactor Netty, versions 0.9.x prior to 0.9.5, and versions 0.8.x prior to 0.8.16, may be used incorrectly, leading to a credentials leak during a redirect to a different domain. In order for this to happen, the HttpClient must have been explicitly configured to follow redirects."
    },
    {
      "lang": "es",
      "value": "El HttpClient del Reactor Netty, versiones 0.9.x anteriores a 0.9.5, y versiones 0.8.x anteriores a 0.8.16, puede ser usado incorrectamente, conllevando a un filtrado de credenciales durante un redireccionamiento hacia un dominio diferente. A fin de que esto ocurra, el HttpClient debe haber sido configurado explícitamente para seguir los redireccionamientos."
    }
  ],
  "lastModified": "2026-09-04T18:59:12.370",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:broadcom:reactor_netty:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "58236904-057F-47EA-8AF8-1D1AC2144FEA",
              "versionEndIncluding": "0.8.15",
              "versionStartIncluding": "0.8.0"
            },
            {
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              "vulnerable": true,
              "matchCriteriaId": "98488F6F-F8B2-4194-9098-46E8D4249911",
              "versionEndIncluding": "0.9.4",
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          "operator": "OR"
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  "sourceIdentifier": "security@pivotal.io"
}