« Volver al listado

CVE-2021-26089

Estado: ModificadaAlta (7.8)—

An improper symlink following in FortiClient for Mac 6.4.3 and below may allow an non-privileged user to execute arbitrary privileged shell commands during installation phase.

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 (1)

Fortinet — Forticlient

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2021-26089",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-26089",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-10-23T14:13:40.446514Z"
        }
      }
    ],
    "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": "psirt@fortinet.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.7,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 0.8
      },
      {
        "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": "psirt@fortinet.com",
      "affectedData": [
        {
          "vendor": "Fortinet",
          "product": "Fortinet FortiClientMac",
          "versions": [
            {
              "status": "affected",
              "version": "FortiClientMac 6.4.3 and below"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-07-12T13:15:07.767",
  "references": [
    {
      "url": "https://fortiguard.com/advisory/FG-IR-21-022",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@fortinet.com"
    },
    {
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-22-078/",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "psirt@fortinet.com"
    },
    {
      "url": "https://fortiguard.com/advisory/FG-IR-21-022",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-22-078/",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-59"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An improper symlink following in FortiClient for Mac 6.4.3 and below may allow an non-privileged user to execute arbitrary privileged shell commands during installation phase."
    },
    {
      "lang": "es",
      "value": "Un seguimiento inapropiado de los enlaces simbólicos en FortiClient para Mac versiones 6.4.3 y por debajo, puede permitir a un usuario no privilegiado ejecutar comandos de shell con privilegios arbitrarios durante la fase de instalación"
    }
  ],
  "lastModified": "2026-06-17T03:42:50.543",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:fortinet:forticlient:*:*:*:*:*:macos:*:*",
              "vulnerable": true,
              "matchCriteriaId": "137209AA-6B9E-4D0C-B9B5-832B2F21BD1D",
              "versionEndIncluding": "6.4.3"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "psirt@fortinet.com"
}