FKIE_CVE-2021-27798

Vulnerability from fkie_nvd - Published: 2022-08-05 16:15 - Updated: 2026-06-17 03:45
Severity
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Summary
A vulnerability in Brocade Fabric OS versions 7.4.1b and 7.3.1d could allow local users to conduct privileged directory transversal. Brocade Fabric OS versions 7.4.1.x and 7.3.x have reached end of life. Brocade Fabric OS Users should upgrade to supported versions as described in the Product End-of-Life published report.
References
sirt@brocade.comhttps://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2022-2012Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2022-2012Vendor Advisory
Impacted products
Vendor Product Version
broadcom fabric_operating_system 7.3.1d
broadcom fabric_operating_system 7.4.1b
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Brocade Fabric OS",
          "vendor": "Brocade",
          "versions": [
            {
              "status": "affected",
              "version": "Brocade Fabric OS 7.4.1b, and 7.3.1d."
            }
          ]
        }
      ],
      "source": "sirt@brocade.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:broadcom:fabric_operating_system:7.3.1d:*:*:*:*:*:*:*",
              "matchCriteriaId": "BE8D767B-55A7-4170-A60C-838AFAD141E1",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:broadcom:fabric_operating_system:7.4.1b:*:*:*:*:*:*:*",
              "matchCriteriaId": "C8237571-12FD-4871-9F30-3D0A9F956E4A",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [
    {
      "sourceIdentifier": "sirt@brocade.com",
      "tags": [
        "unsupported-when-assigned"
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in Brocade Fabric OS versions 7.4.1b and 7.3.1d could allow local users to conduct privileged directory transversal. Brocade Fabric OS versions 7.4.1.x and 7.3.x have reached end of life. Brocade Fabric OS Users should upgrade to supported versions as described in the Product End-of-Life published report."
    },
    {
      "lang": "es",
      "value": "** NO SOPORTADO CUANDO SE ASIGN\u00d3 ** Una vulnerabilidad en Brocade Fabric OS versiones v7.4.1b y v7.3.1d, podr\u00eda permitir a usuarios locales conducir un salto de directorio privilegiado. Brocade Fabric OS versiones v7.4.1.x y v7.3.x, han llegado al final de su vida \u00fatil. Los usuarios de Brocade Fabric OS deben actualizarse a versiones soportadas, tal y como es descrito en el Informe de Publicaci\u00f3n de Fin de Vida del Producto"
    }
  ],
  "id": "CVE-2021-27798",
  "lastModified": "2026-06-17T03:45:28.470",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-27798",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-07-03T14:57:53.170051Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2022-08-05T16:15:10.807",
  "references": [
    {
      "source": "sirt@brocade.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2022-2012"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2022-2012"
    }
  ],
  "sourceIdentifier": "sirt@brocade.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ],
      "source": "sirt@brocade.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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