« Volver al listado

CVE-2021-20040

Estado: ModificadaAlta (7.5)—

A relative path traversal vulnerability in the SMA100 upload funtion allows a remote unauthenticated attacker to upload crafted web pages or files as a 'nobody' user. This vulnerability affected SMA 200, 210, 400, 410 and 500v appliances.

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 (5)

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2021-20040",
  "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": "PSIRT@sonicwall.com",
      "affectedData": [
        {
          "vendor": "SonicWall",
          "product": "SonicWall SMA100",
          "versions": [
            {
              "status": "affected",
              "version": "10.2.0.8-37sv and earlier"
            },
            {
              "status": "affected",
              "version": "10.2.1.1-19sv and earlier"
            },
            {
              "status": "affected",
              "version": "10.2.1.2-24sv and earlier"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-12-08T10:15:07.953",
  "references": [
    {
      "url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0026",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "PSIRT@sonicwall.com"
    },
    {
      "url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0026",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "PSIRT@sonicwall.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-23"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A relative path traversal vulnerability in the SMA100 upload funtion allows a remote unauthenticated attacker to upload crafted web pages or files as a 'nobody' user. This vulnerability affected SMA 200, 210, 400, 410 and 500v appliances."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de salto de ruta relativo en la función upload de SMA100 permite a un atacante remoto no autenticado cargar páginas web o archivos diseñados como usuario \"nobody\". Esta vulnerabilidad afecta a los dispositivos SMA 200, 210, 400, 410 y 500v"
    }
  ],
  "lastModified": "2026-06-17T03:33:11.670",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:sonicwall:sma_200_firmware:10.2.0.8-37sv:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4185C028-6A07-4A92-8380-9AA3953D2CFD"
            },
            {
              "criteria": "cpe:2.3:o:sonicwall:sma_200_firmware:10.2.1.1-19sv:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "33233A45-6667-4CE9-A21C-6A6C725689F8"
            }
          ],
          "operator": "OR"
        },
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:sonicwall:sma_200:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "0B190266-AD6F-401B-9B2E-061CDD539236"
            }
          ],
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:sonicwall:sma_210_firmware:10.2.0.8-37sv:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E62EEC93-6F52-4DDB-95F0-D5736391D64C"
            },
            {
              "criteria": "cpe:2.3:o:sonicwall:sma_210_firmware:10.2.1.1-19sv:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E4F1C135-A182-4233-B7FC-D08C754ECE13"
            }
          ],
          "operator": "OR"
        },
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:sonicwall:sma_210:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "51587338-4A5F-41FC-9497-743F061947C2"
            }
          ],
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:sonicwall:sma_410_firmware:10.2.0.8-37sv:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "53698BD3-43B6-4EC4-8847-E6ED9A3CB6F6"
            },
            {
              "criteria": "cpe:2.3:o:sonicwall:sma_410_firmware:10.2.1.1-19sv:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "8EC74D70-C04B-481F-A706-6C86751996FB"
            }
          ],
          "operator": "OR"
        },
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:sonicwall:sma_410:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "9DFB8FBC-FFA4-4526-B306-D5692A43DC9E"
            }
          ],
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:sonicwall:sma_400_firmware:10.2.0.8-37sv:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "9BE21589-3BEC-4245-9939-CF50DE70B12A"
            },
            {
              "criteria": "cpe:2.3:o:sonicwall:sma_400_firmware:10.2.1.1-19sv:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "BEB82F42-A5DF-42CC-86F9-B06B39BBC202"
            }
          ],
          "operator": "OR"
        },
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:sonicwall:sma_400:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "9D728332-10C9-4508-B720-569D44E99543"
            }
          ],
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:sonicwall:sma_500v_firmware:10.2.0.8-37sv:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "379F7CA2-8914-4710-AE6B-D2833605D4B8"
            },
            {
              "criteria": "cpe:2.3:o:sonicwall:sma_500v_firmware:10.2.1.1-19sv:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "AC429F62-366B-4B68-B378-FB741F9F7FEF"
            }
          ],
          "operator": "OR"
        },
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:sonicwall:sma_500v:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "A6AD8A33-7CE4-4C66-9E23-F0C9C9638770"
            }
          ],
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "sourceIdentifier": "PSIRT@sonicwall.com"
}