{
  "id": "CVE-2021-27406",
  "sourceIdentifier": "ics-cert@hq.dhs.gov",
  "published": "2022-10-14T17:15:10.530",
  "lastModified": "2022-10-18T13:38:40.527",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "An attacker can take leverage on PerFact OpenVPN-Client versions 1.4.1.0 and prior to send the config command from any application running on the local host machine to force the back-end server into initializing a new open-VPN instance with arbitrary open-VPN configuration. This could result in the attacker achieving execution with privileges of a SYSTEM user."
    },
    {
      "lang": "es",
      "value": "Un atacante puede aprovechar PerFact OpenVPN-Client versiones 1.4.1.0 y anteriores, para enviar el comando config desde cualquier aplicaci\u00f3n que sea ejecutada en el equipo anfitri\u00f3n local para forzar al servidor back-end a inicializar una nueva instancia de Open-VPN con una configuraci\u00f3n arbitraria de Open-VPN. Esto podr\u00eda resultar en que el atacante logre una ejecuci\u00f3n con privilegios de un usuario SYSTEM"
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9
      },
      {
        "source": "ics-cert@hq.dhs.gov",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-610"
        }
      ]
    },
    {
      "source": "ics-cert@hq.dhs.gov",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-15"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:perfact:openvpn-client:*:*:*:*:*:*:*:*",
              "versionEndIncluding": "1.4.1.0",
              "matchCriteriaId": "E4F40462-0D14-4ED0-94C2-B4C23A0A2913"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://www.cisa.gov/uscert/ics/advisories/icsa-21-056-01",
      "source": "ics-cert@hq.dhs.gov",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ]
    }
  ]
}