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CVE-2020-10138

Estado: ModificadaAlta (7.8)—

Acronis Cyber Backup 12.5 and Cyber Protect 15 include an OpenSSL component that specifies an OPENSSLDIR variable as a subdirectory within C:\jenkins_agent\. Acronis Cyber Backup and Cyber Protect contain a privileged service that uses this OpenSSL component. Because unprivileged Windows users can create subdirectories off of the system root, a user can create the appropriate path to a specially-crafted openssl.cnf file to achieve arbitrary code execution with SYSTEM privileges.

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 (2)

Acronis — Cyber BackupAcronis — Cyber Protect

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2020-10138",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.2,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "cret@cert.org",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "cret@cert.org",
      "affectedData": [
        {
          "vendor": "Acronis",
          "product": "Cyber Backup",
          "versions": [
            {
              "status": "affected",
              "version": "12.5",
              "lessThan": "16363",
              "versionType": "custom"
            }
          ]
        },
        {
          "vendor": "Acronis",
          "product": "Cyber Protect",
          "versions": [
            {
              "status": "affected",
              "version": "15",
              "lessThan": "24600",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2020-10-21T14:15:15.013",
  "references": [
    {
      "url": "https://www.kb.cert.org/vuls/id/114757",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ],
      "source": "cret@cert.org"
    },
    {
      "url": "https://www.kb.cert.org/vuls/id/114757",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "cret@cert.org",
      "description": [
        {
          "lang": "en",
          "value": "CWE-284"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-665"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Acronis Cyber Backup 12.5 and Cyber Protect 15 include an OpenSSL component that specifies an OPENSSLDIR variable as a subdirectory within C:\\jenkins_agent\\. Acronis Cyber Backup and Cyber Protect contain a privileged service that uses this OpenSSL component. Because unprivileged Windows users can create subdirectories off of the system root, a user can create the appropriate path to a specially-crafted openssl.cnf file to achieve arbitrary code execution with SYSTEM privileges."
    },
    {
      "lang": "es",
      "value": "Acronis Cyber ??Backup versión 12.5 y Cyber ??Protect versión 15 incluyen un componente OpenSSL que especifica una variable OPENSSLDIR como un subdirectorio dentro de C:\\jenkins_agent\\. Acronis Cyber ??Backup y Cyber ??Protect contienen un servicio privilegiado que usa este componente de OpenSSL. Debido a que los usuarios de Windows no privilegiados pueden crear subdirectorios fuera del root del sistema, un usuario puede crear la ruta apropiada a un archivo openssl.cnf especialmente diseñado para lograr una ejecución de código arbitraria con privilegios del SYSTEM"
    }
  ],
  "lastModified": "2026-06-17T02:47:25.737",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:acronis:cyber_backup:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D50B1D5A-751B-43C6-A5DE-681B242A1874",
              "versionEndExcluding": "12.5"
            },
            {
              "criteria": "cpe:2.3:a:acronis:cyber_protect:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "547972AF-7F43-4A6D-AFC7-5514DD9995A6",
              "versionEndExcluding": "15"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cret@cert.org"
}