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CVE-2021-22995

Estado: ModificadaAlta (7.5)—

On all 7.x and 6.x versions (fixed in 8.0.0), BIG-IQ high availability (HA) when using a Quorum device for automatic failover does not implement any form of authentication with the Corosync daemon. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.

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)

F5 — Big-iq Centralized Management

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-22995",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/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": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "f5sirt@f5.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "BIG-IQ",
          "versions": [
            {
              "status": "affected",
              "version": "All 7.x and 6.x versions"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-03-31T17:15:13.073",
  "references": [
    {
      "url": "https://support.f5.com/csp/article/K13155201",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "f5sirt@f5.com"
    },
    {
      "url": "https://support.f5.com/csp/article/K13155201",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-306"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "On all 7.x and 6.x versions (fixed in 8.0.0), BIG-IQ high availability (HA) when using a Quorum device for automatic failover does not implement any form of authentication with the Corosync daemon. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated."
    },
    {
      "lang": "es",
      "value": "En todas las versiones 7.x y 6.x (corregidas en versión 8.0.0), la alta disponibilidad (HA) de BIG-IQ cuando se usa un dispositivo Quorum para la conmutación automática por error no implementa ninguna forma de autenticación con el demonio Corosync. Nota: No se evalúan las versiones de software que han alcanzado End of Software Development (EoSD)."
    }
  ],
  "lastModified": "2026-06-17T03:38:10.590",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:f5:big-iq_centralized_management:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F37D18F2-8C6A-4557-85DC-2A751595423C",
              "versionEndIncluding": "6.1.0",
              "versionStartIncluding": "6.0.0"
            },
            {
              "criteria": "cpe:2.3:a:f5:big-iq_centralized_management:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C88B0206-093A-4A18-8322-A1CD1D4ACF2A",
              "versionEndIncluding": "7.1.0",
              "versionStartIncluding": "7.0.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "f5sirt@f5.com"
}