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CVE-2021-23055

Estado: ModificadaMedia (6.5)—

On version 2.x before 2.0.3 and 1.x before 1.12.3, the command line restriction that controls snippet use with NGINX Ingress Controller does not apply to Ingress objects. 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 — Nginx Ingress Controller

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2021-23055",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:N",
          "authentication": "SINGLE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.5,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "f5sirt@f5.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "NGINX Ingress Controller",
          "versions": [
            {
              "status": "affected",
              "version": "2.x before 2.0.3 and 1.x before 1.12.3"
            }
          ]
        }
      ]
    }
  ],
  "published": "2022-04-21T19:15:08.053",
  "references": [
    {
      "url": "https://support.f5.com/csp/article/K01051452",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
      ],
      "source": "f5sirt@f5.com"
    },
    {
      "url": "https://support.f5.com/csp/article/K01051452",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "f5sirt@f5.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-732"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "On version 2.x before 2.0.3 and 1.x before 1.12.3, the command line restriction that controls snippet use with NGINX Ingress Controller does not apply to Ingress objects. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated."
    },
    {
      "lang": "es",
      "value": "En versiones 2.x anteriores a 2.0.3 y en la versiones 1.x anteriores a 1.12.3, la restricción de la línea de comandos que controla el uso de fragmentos con NGINX Ingress Controller no es aplicada a los objetos Ingress. Nota: No son evaluadas las versiones de software que han alcanzado el Fin del Soporte Técnico (EoTS)"
    }
  ],
  "lastModified": "2026-06-17T03:38:17.400",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:f5:nginx_ingress_controller:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "94637206-6021-4054-87E4-7B4A75E19763",
              "versionEndExcluding": "1.12.3",
              "versionStartIncluding": "1.0.0"
            },
            {
              "criteria": "cpe:2.3:a:f5:nginx_ingress_controller:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "AB9E46CE-6A0D-4F16-B06C-0843806A7D44",
              "versionEndExcluding": "2.0.3",
              "versionStartIncluding": "2.0.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "f5sirt@f5.com"
}