{
  "id": "CVE-2023-30571",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2023-05-29T20:15:09.513",
  "lastModified": "2023-06-05T16:40:57.930",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "Libarchive through 3.6.2 can cause directories to have world-writable permissions. The umask() call inside archive_write_disk_posix.c changes the umask of the whole process for a very short period of time; a race condition with another thread can lead to a permanent umask 0 setting. Such a race condition could lead to implicit directory creation with permissions 0777 (without the sticky bit), which means that any low-privileged local user can delete and rename files inside those directories."
    },
    {
      "lang": "es",
      "value": "Libarchive hasta la versi\u00f3n 3.6.2 puede hacer que los directorios tengan permisos de escritura global. La llamada \"umask()\" dentro del archivo \"archive_write_disk_posix.c\" cambia la m\u00e1scara de usuario de todo el proceso durante un periodo de tiempo muy corto; una condici\u00f3n de carrera con otro hilo puede llevar a un ajuste permanente de la m\u00e1scara de usuario a 0. Tal condici\u00f3n de carrera podr\u00eda llevar a la creaci\u00f3n impl\u00edcita de directorios con permisos 0777, sin el bit adhesivo (\"sticky bit\"), lo que significa que cualquier usuario local con pocos privilegios puede borrar y renombrar archivos dentro de esos directorios. "
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H",
          "attackVector": "LOCAL",
          "attackComplexity": "HIGH",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "availabilityImpact": "HIGH",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 1.0,
        "impactScore": 4.2
      },
      {
        "source": "cve@mitre.org",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N",
          "attackVector": "LOCAL",
          "attackComplexity": "HIGH",
          "privilegesRequired": "LOW",
          "userInteraction": "REQUIRED",
          "scope": "CHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE",
          "baseScore": 3.9,
          "baseSeverity": "LOW"
        },
        "exploitabilityScore": 0.8,
        "impactScore": 2.7
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-362"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:libarchive:libarchive:*:*:*:*:*:*:*:*",
              "versionEndIncluding": "3.6.2",
              "matchCriteriaId": "3B32A1BB-6BB8-4D7F-ADCA-62727C4BA74E"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/libarchive/libarchive/issues/1876",
      "source": "cve@mitre.org",
      "tags": [
        "Issue Tracking"
      ]
    },
    {
      "url": "https://groups.google.com/g/libarchive-announce",
      "source": "cve@mitre.org",
      "tags": [
        "Release Notes"
      ]
    }
  ]
}