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CVE-2020-9389

Estado: ModificadaBaja (3.7)—

A username enumeration issue was discovered in SquaredUp before version 4.6.0. The login functionality was implemented in a way that would enable a malicious user to guess valid username due to a different response time from invalid usernames.

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)

Squaredup — Squaredup

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2020-9389",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 3.7,
          "attackVector": "NETWORK",
          "baseSeverity": "LOW",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 2.2
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-02-03T20:15:13.057",
  "references": [
    {
      "url": "https://support.squaredup.com/hc/en-us/articles/360017255858",
      "tags": [
        "Broken Link",
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://support.squaredup.com/hc/en-us/articles/360019427238-CVE-2020-9389-Username-enumeration-possible-via-a-timing-attack",
      "tags": [
        "Broken Link",
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://support.squaredup.com/hc/en-us/articles/360017255858",
      "tags": [
        "Broken Link",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://support.squaredup.com/hc/en-us/articles/360019427238-CVE-2020-9389-Username-enumeration-possible-via-a-timing-attack",
      "tags": [
        "Broken Link",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-203"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A username enumeration issue was discovered in SquaredUp before version 4.6.0. The login functionality was implemented in a way that would enable a malicious user to guess valid username due to a different response time from invalid usernames."
    },
    {
      "lang": "es",
      "value": "Se detectó un problema de enumeración de nombre de usuario en SquaredUp anterior a versión 4.6.0. La funcionalidad login fue implementada de una manera que podría permitir a un usuario malicioso adivinar un nombre de usuario válido debido a un tiempo de respuesta diferente al de los nombres de usuario no válidos"
    }
  ],
  "lastModified": "2026-06-17T03:27:51.847",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:squaredup:squaredup:*:*:*:*:system_center_operations_manager:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "73CCAAAC-5FED-4B32-9C82-CD2703A2A5C9",
              "versionEndIncluding": "4.6"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}