{
  "id": "CVE-2021-43033",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2021-12-06T04:15:07.093",
  "lastModified": "2022-11-28T21:44:06.410",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in Kaseya Unitrends Backup Appliance before 10.5.5. Multiple functions in the bpserverd daemon were vulnerable to arbitrary remote code execution as root. The vulnerability was caused by untrusted input (received by the server) being passed to system calls."
    },
    {
      "lang": "es",
      "value": "Se ha detectado un problema en Kaseya Unitrends Backup Appliance versiones anteriores a 10.5.5. M\u00faltiples funciones en el demonio bpserverd eran vulnerables a una ejecuci\u00f3n de c\u00f3digo remota arbitrario como root. La vulnerabilidad era causada por la entrada no confiable (recibida por el servidor) que se pasaba a las llamadas del sistema."
    }
  ],
  "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:C/I:C/A:C",
          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 10.0
        },
        "baseSeverity": "HIGH",
        "exploitabilityScore": 10.0,
        "impactScore": 10.0,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:kaseya:unitrends_backup:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "10.0",
              "versionEndExcluding": "10.5.5",
              "matchCriteriaId": "0AB6E40C-C11C-4C88-97AA-28D0457182BF"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://helpdesk.kaseya.com/hc/en-gb/articles/4412762258961",
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://www.cyberonesecurity.com/blog/exploiting-kaseya-unitrends-backup-appliance-part-1",
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.cyberonesecurity.com/blog/exploiting-kaseya-unitrends-backup-appliance-part-2",
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ]
    }
  ]
}