FKIE_CVE-2021-27791

Vulnerability from fkie_nvd - Published: 2021-08-12 15:15 - Updated: 2024-11-21 05:58
Severity ?
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Summary
The function that is used to parse the Authentication header in Brocade Fabric OS Web application service before Brocade Fabric OS v9.0.1a and v8.2.3a fails to properly process a malformed authentication header from the client, resulting in reading memory addresses outside the intended range. An unauthenticated attacker could discover a request, which could bypass the authentication process.
References
sirt@brocade.comhttps://security.netapp.com/advisory/ntap-20210819-0002/Third Party Advisory
sirt@brocade.comhttps://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2021-1491Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20210819-0002/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2021-1491Vendor Advisory
Impacted products
Vendor Product Version
broadcom fabric_operating_system *
broadcom fabric_operating_system *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:broadcom:fabric_operating_system:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "D137CFD9-916B-4B8D-9E57-2EECCE5FD32B",
              "versionEndExcluding": "8.2.3a",
              "versionStartIncluding": "8.2.1",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:broadcom:fabric_operating_system:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "6D7BD6F1-04FE-45C8-9154-70DBDC01A31F",
              "versionEndExcluding": "9.0.1a",
              "versionStartIncluding": "9.0.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The function that is used to parse the Authentication header in Brocade Fabric OS Web application service before Brocade Fabric OS v9.0.1a and v8.2.3a fails to properly process a malformed authentication header from the client, resulting in reading memory addresses outside the intended range. An unauthenticated attacker could discover a request, which could bypass the authentication process."
    },
    {
      "lang": "es",
      "value": "Una funci\u00f3n que es usada para analizar el encabezado de Autenticaci\u00f3n en el servicio de aplicaciones web de Brocade Fabric OS versiones anteriores a Brocade Fabric OS v9.0.1a y v8.2.3a, presenta un fallo en procesar apropiadamente un encabezado de autenticaci\u00f3n malformado procedente del cliente, resultando en una lectura de direcciones de memoria fuera del rango previsto. Un atacante no autenticado podr\u00eda descubrir una petici\u00f3n, que podr\u00eda omitir el proceso de autenticaci\u00f3n"
    }
  ],
  "id": "CVE-2021-27791",
  "lastModified": "2024-11-21T05:58:34.420",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "NONE",
          "baseScore": 5.5,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 8.0,
        "impactScore": 4.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 2.5,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-08-12T15:15:07.737",
  "references": [
    {
      "source": "sirt@brocade.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://security.netapp.com/advisory/ntap-20210819-0002/"
    },
    {
      "source": "sirt@brocade.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2021-1491"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://security.netapp.com/advisory/ntap-20210819-0002/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2021-1491"
    }
  ],
  "sourceIdentifier": "sirt@brocade.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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

Author Source Type Date Other

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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • 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.



Detection rules are retrieved from Rulezet.