{
  "id": "CVE-2020-25928",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2021-08-18T19:15:07.287",
  "lastModified": "2022-06-28T14:11:45.273",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "The DNS feature in InterNiche NicheStack TCP/IP 4.0.1 is affected by: Buffer Overflow. The impact is: execute arbitrary code (remote). The component is: DNS response processing functions: dns_upcall(), getoffset(), dnc_set_answer(). The attack vector is: a specific DNS response packet. The code does not check the \"response data length\" field of individual DNS answers, which may cause out-of-bounds read/write operations, leading to Information leak, Denial-or-Service, or Remote Code Execution, depending on the context."
    },
    {
      "lang": "es",
      "value": "La funcionalidad DNS en InterNiche NicheStack TCP/IP versi\u00f3n 4.0.1 est\u00e1 afectada por: Desbordamiento del B\u00fafer. El impacto es: ejecutar c\u00f3digo arbitrario (remoto). El componente es: Funciones de procesamiento de respuestas DNS: dns_upcall(), getoffset(), dnc_set_answer(). El vector de ataque es: un paquete de respuesta DNS espec\u00edfico. El c\u00f3digo no comprueba el campo \"response data length\" de las respuestas DNS individuales, lo que puede causar operaciones de lectura/escritura fuera de l\u00edmites, conllevando a un filtrado de Informaci\u00f3n, Denegaci\u00f3n de Servicio o Ejecuci\u00f3n de C\u00f3digo Remota, dependiendo del contexto."
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "PARTIAL",
          "baseScore": 7.5
        },
        "baseSeverity": "HIGH",
        "exploitabilityScore": 10.0,
        "impactScore": 6.4,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        },
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:hcc-embedded:nichestack_tcp\\/ip:4.0.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "EBA5023C-F403-43DA-BC96-F0D020D6E213"
            }
          ]
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  ],
  "references": [
    {
      "url": "https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/",
      "source": "cve@mitre.org",
      "tags": [
        "Mitigation",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.kb.cert.org/vuls/id/608209",
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ]
    }
  ]
}