« Volver al listado

CVE-2021-1434

Estado: ModificadaMedia (6)—

A vulnerability in the CLI of Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to overwrite arbitrary files in the underlying file system. This vulnerability is due to insufficient validation of the parameters of a specific CLI command. An attacker could exploit this vulnerability by issuing that command with specific parameters. A successful exploit could allow the attacker to overwrite the content of any arbitrary file that resides on the underlying host file system.

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)

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2021-1434",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-1434",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-11-08T20:48:04.534219Z"
        }
      }
    ],
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.6,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:N/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 9.2,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "psirt@cisco.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 4.4,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 0.8
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 5.2,
        "exploitabilityScore": 0.8
      }
    ]
  },
  "affected": [
    {
      "source": "psirt@cisco.com",
      "affectedData": [
        {
          "vendor": "Cisco",
          "product": "Cisco IOS XE Software",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-03-24T20:15:14.667",
  "references": [
    {
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-arbfile-FUxskKDE",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@cisco.com"
    },
    {
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-arbfile-FUxskKDE",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "psirt@cisco.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-552"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in the CLI of Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to overwrite arbitrary files in the underlying file system. This vulnerability is due to insufficient validation of the parameters of a specific CLI command. An attacker could exploit this vulnerability by issuing that command with specific parameters. A successful exploit could allow the attacker to overwrite the content of any arbitrary file that resides on the underlying host file system."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en la CLI del Software Cisco IOS XE SD-WAN, podría permitir a un atacante local autenticado sobrescribir archivos arbitrarios en el sistema de archivos subyacente. Esta vulnerabilidad es debido a una comprobación insuficiente de los parámetros de un comando de CLI específico. Un atacante podría explotar esta vulnerabilidad al emitir ese comando con parámetros específicos. Una explotación con éxito podría permitir al atacante sobrescribir el contenido de cualquier archivo arbitrario que resida en el sistema de archivos del host subyacente"
    }
  ],
  "lastModified": "2026-06-17T03:31:46.243",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:cisco:ios_xe:16.11.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E91F8704-6DAD-474A-84EA-04E4AF7BB9B1"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios_xe:16.11.1a:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "314C7763-A64D-4023-9F3F-9A821AE4151F"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios_xe:16.11.1b:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5820D71D-FC93-45AA-BC58-A26A1A39C936"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios_xe:16.11.1c:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "FC1C85DD-69CC-4AA8-B219-651D57FC3506"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios_xe:16.11.1s:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "DB26AE0F-85D8-4EAB-B9BD-457DD81FF0FE"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios_xe:16.11.2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B53E377A-0296-4D7A-B97C-576B0026543D"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios_xe:16.12.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C98DED36-D4B5-48D6-964E-EEEE97936700"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios_xe:16.12.1a:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "CD98C9E8-3EA6-4160-970D-37C389576516"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios_xe:16.12.1c:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C8BEFEDA-B01A-480B-B03D-7ED5D08E4B67"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios_xe:16.12.1s:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "9027A528-2588-4C06-810B-5BB313FE4323"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios_xe:16.12.1t:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7745ED34-D59D-49CC-B174-96BCA03B3374"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios_xe:16.12.1w:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "19AF4CF3-6E79-4EA3-974D-CD451A192BA9"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios_xe:16.12.1x:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "313BD54C-073C-4F27-82D5-C99EFC3A20F7"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios_xe:16.12.1y:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "93B96E01-3777-4C33-9225-577B469A6CE5"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios_xe:16.12.1z:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "65FC3CC1-CF4F-4A2D-A500-04395AFE8B47"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios_xe:16.12.1za:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "027200FC-8AD4-47E4-A404-490AE4F997EC"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios_xe:16.12.2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E5019B59-508E-40B0-9C92-2C26F58E2FBE"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios_xe:16.12.2a:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "443D78BA-A3DA-4D1F-A4DF-2F426DC6B841"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios_xe:16.12.2s:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "1986DB1F-AD0A-42FE-8EC8-F18BA1AD4F99"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios_xe:16.12.2t:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "3C6FB4DC-814D-49D2-BBE2-3861AE985A1C"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios_xe:16.12.3:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D5750264-2990-4942-85F4-DB9746C5CA2B"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios_xe:16.12.3a:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "02352FD8-2A7B-41BD-9E4A-F312ABFDF3EF"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios_xe:16.12.3s:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B9173AD6-6658-4267-AAA7-D50D0B657528"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios_xe:17.2.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4B7EE7C7-D6C1-4C35-8C80-EAF3FC7E7EFA"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios_xe:17.2.1a:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B51FA707-8DB1-4596-9122-D4BFEF17F400"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios_xe:17.2.1r:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C04DF35A-1B6F-420A-8D84-74EB41BF3700"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios_xe:17.2.1v:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "211CC9B2-6108-4C50-AB31-DC527C43053E"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "psirt@cisco.com"
}