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CVE-2024-21771

Estado: AnalizadaAlta (7.5)—

For unspecified traffic patterns, BIG-IP AFM IPS engine may spend an excessive amount of time matching the traffic against signatures, resulting in Traffic Management Microkernel (TMM) restarting and traffic disruption.  Note: Software versions which have reached End of Technical Support (EoTS) 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-ip Advanced Firewall Manager

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2024-21771",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-21771",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-02-15T16:02:59.990535Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "f5sirt@f5.com",
        "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:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      },
      {
        "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:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "f5sirt@f5.com",
      "affectedData": [
        {
          "vendor": "F5",
          "modules": [
            "AFM",
            "IPS"
          ],
          "product": "BIG-IP",
          "versions": [
            {
              "status": "affected",
              "version": "17.1.0",
              "lessThan": "17.1.1",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "16.1.0",
              "lessThan": "16.1.4",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "15.1.0",
              "lessThan": "15.1.9",
              "versionType": "custom"
            }
          ],
          "defaultStatus": "unknown"
        }
      ]
    }
  ],
  "published": "2024-02-14T17:15:11.827",
  "references": [
    {
      "url": "https://my.f5.com/manage/s/article/K000137595",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "f5sirt@f5.com"
    },
    {
      "url": "https://my.f5.com/manage/s/article/K000137595",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "f5sirt@f5.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-770"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-770"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "\nFor unspecified traffic patterns, BIG-IP AFM IPS engine may spend an excessive amount of time matching the traffic against signatures, resulting in Traffic Management Microkernel (TMM) restarting and traffic disruption.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated"
    },
    {
      "lang": "es",
      "value": "Para patrones de tráfico no especificados, el motor BIG-IP AFM IPS puede dedicar una cantidad excesiva de tiempo a comparar el tráfico con las firmas, lo que provoca el reinicio del microkernel de gestión de tráfico (TMM) y la interrupción del tráfico. Nota: Las versiones de software que han llegado al final del soporte técnico (EoTS) no se evalúan"
    }
  ],
  "lastModified": "2026-06-17T07:10:08.037",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "6DD4CF11-44E9-4596-9397-AF7DBD81277B",
              "versionEndExcluding": "15.1.9",
              "versionStartIncluding": "15.1.0"
            },
            {
              "criteria": "cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "DE979976-11C7-4AFF-8BE4-A094CC9C39CF",
              "versionEndExcluding": "16.1.4",
              "versionStartIncluding": "16.1.0"
            },
            {
              "criteria": "cpe:2.3:a:f5:big-ip_advanced_firewall_manager:17.1.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "1A1CC91B-6920-4AF0-9EDD-DD3189E78F4D"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "f5sirt@f5.com"
}