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CVE-2020-11733

Estado: ModificadaMedia (6.7)—

An issue was discovered on Spirent TestCenter and Avalanche appliance admin interface firmware. An attacker, who already has access to an SSH restricted shell, can achieve root access via shell metacharacters. The attacker can then, for example, read sensitive files such as appliance admin configuration source code. This affects Spirent TestCenter and Avalanche products which chassis version <= 5.08. The SSH restricted shell is available with default credentials.

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 (2)

Spirent — AvalancheSpirent — Testcenter

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2020-11733",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 9,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C",
          "authentication": "SINGLE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.7,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 0.8
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2020-08-13T14:15:20.377",
  "references": [
    {
      "url": "https://gist.github.com/a05110511t/65d07bc776d7c11b4ccf112a09cca4ab",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/a05110511t/CVE/blob/master/CVE-2020-11733.md",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://gist.github.com/a05110511t/65d07bc776d7c11b4ccf112a09cca4ab",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/a05110511t/CVE/blob/master/CVE-2020-11733.md",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered on Spirent TestCenter and Avalanche appliance admin interface firmware. An attacker, who already has access to an SSH restricted shell, can achieve root access via shell metacharacters. The attacker can then, for example, read sensitive files such as appliance admin configuration source code. This affects Spirent TestCenter and Avalanche products which chassis version <= 5.08. The SSH restricted shell is available with default credentials."
    },
    {
      "lang": "es",
      "value": "Se detectó un problema en el firmware de la interfaz de administración del dispositivo Spirent TestCenter y Avalanche. Un atacante, que ya tiene acceso a un shell restringido SSH, puede alcanzar acceso root mediante metacaracteres de shell. El atacante puede, por ejemplo, leer archivos confidenciales tal y como como el código fuente de la configuración del administrador del dispositivo. Esto afecta a los productos Spirent TestCenter y Avalanche cuya versiones de chasis sean anteriores a 5.08 incluyéndola. El shell restringido SSH está disponible con credenciales predeterminadas"
    }
  ],
  "lastModified": "2026-06-17T02:50:42.217",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:spirent:avalanche:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "BEB912D1-00E8-4A69-B0B8-00282B6B94D3",
              "versionEndIncluding": "5.08"
            },
            {
              "criteria": "cpe:2.3:a:spirent:testcenter:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "3D7A95C4-D1DC-45F6-84B8-29D3F3CD5493",
              "versionEndIncluding": "5.08"
            }
          ],
          "operator": "OR"
        },
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:spirent:c100-mp:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "D0DA071D-653E-4CD9-9708-C041396DD171"
            }
          ],
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}