« Volver al listado

CVE-2021-30738

Estado: ModificadaMedia (5.5)—

A malicious application may be able to overwrite arbitrary files. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-004 Mojave. An issue with path validation logic for hardlinks was addressed with improved path sanitization.

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)

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2021-30738",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 2.1,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "LOW",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "product-security@apple.com",
      "affectedData": [
        {
          "vendor": "Apple",
          "product": "macOS",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "11.4",
              "versionType": "custom"
            }
          ]
        },
        {
          "vendor": "Apple",
          "product": "macOS",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "2021",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-09-08T14:15:09.380",
  "references": [
    {
      "url": "https://support.apple.com/en-us/HT212529",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "product-security@apple.com"
    },
    {
      "url": "https://support.apple.com/en-us/HT212531",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "product-security@apple.com"
    },
    {
      "url": "https://support.apple.com/en-us/HT212529",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://support.apple.com/en-us/HT212531",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A malicious application may be able to overwrite arbitrary files. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-004 Mojave. An issue with path validation logic for hardlinks was addressed with improved path sanitization."
    },
    {
      "lang": "es",
      "value": "Una aplicación maliciosa puede ser capaz de sobrescribir archivos arbitrarios. Este problema se corrigió en macOS Big Sur versión 11.4, Security Update 2021-004 Mojave. Se abordó un problema con la lógica de comprobación de la ruta para los enlaces duros mediante un saneamiento de ruta mejorada"
    }
  ],
  "lastModified": "2026-06-17T03:50:47.463",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "3C046525-B3B6-4180-B002-AF4E31C1D6FA",
              "versionEndIncluding": "10.14.5",
              "versionStartIncluding": "10.14.0"
            },
            {
              "criteria": "cpe:2.3:o:apple:mac_os_x:10.14.6:-:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "693E7DAE-BBF0-4D48-9F8A-20DDBD4AAC0C"
            },
            {
              "criteria": "cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-001:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "CFE26ECC-A2C2-4501-9950-510DE0E1BD86"
            },
            {
              "criteria": "cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-002:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "26108BEF-0847-4AB0-BD98-35344DFA7835"
            },
            {
              "criteria": "cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-004:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A369D48B-6A0A-47AE-9513-D5E2E6F30931"
            },
            {
              "criteria": "cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-005:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "510F8317-94DA-498E-927A-83D5F41AF54A"
            },
            {
              "criteria": "cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-006:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "0D5D1970-6D2A-42CA-A203-42023D71730D"
            },
            {
              "criteria": "cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-007:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C68AE52B-5139-40A4-AE9A-E752DBF07D1B"
            },
            {
              "criteria": "cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-001:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "0FD3467D-7679-479F-9C0B-A93F7CD0929D"
            },
            {
              "criteria": "cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-002:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D4C6098E-EDBD-4A85-8282-B2E9D9333872"
            },
            {
              "criteria": "cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-003:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "518BB47B-DD76-4E8C-9F10-7EBC1E146191"
            },
            {
              "criteria": "cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-004:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "63940A55-D851-46EB-9668-D82BEFC1FE95"
            },
            {
              "criteria": "cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-005:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "68C7A97A-3801-44FA-96CA-10298FA39883"
            },
            {
              "criteria": "cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-006:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "6D69914D-46C7-4A0E-A075-C863C1692D33"
            },
            {
              "criteria": "cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-007:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "9CDB4476-B521-43E4-A129-8718A8E0A8CD"
            },
            {
              "criteria": "cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2021-001:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "9D072B77-BE3F-4A2E-B66A-E2C8DC3781E4"
            },
            {
              "criteria": "cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2021-002:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A4A6BF78-B772-435C-AC1A-2199027CCF9E"
            },
            {
              "criteria": "cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2021-003:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "9A233DE4-D09A-4157-B852-E675889DD4C1"
            },
            {
              "criteria": "cpe:2.3:o:apple:mac_os_x:10.14.6:supplemental_update:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "2C88BD98-46F5-447F-963A-FB9B167E31BE"
            },
            {
              "criteria": "cpe:2.3:o:apple:mac_os_x:10.14.6:supplemental_update_2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C7A0615B-D958-4BBF-B53F-AA839A0FE845"
            },
            {
              "criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "391D9971-3C67-4B94-9AF2-1D4D23DAF95F",
              "versionEndExcluding": "11.4",
              "versionStartIncluding": "11.0.1"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "product-security@apple.com"
}