CVE-2021-27791

{"containers": {"cna": {"affected": [{"product": "Brocade Fabric OS", "vendor": "n/a", "versions": [{"status": "affected", "version": "Brocade Fabric OS before Brocade Fabric OS v9.0.1a and v8.2.3a"}]}], "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."}], "problemTypes": [{"descriptions": [{"description": "authentication bypass", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2021-08-19T09:06:18.000Z", "orgId": "87b297d7-335e-4844-9551-11b97995a791", "shortName": "brocade"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2021-1491"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://security.netapp.com/advisory/ntap-20210819-0002/"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "sirt@brocade.com", "ID": "CVE-2021-27791", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Brocade Fabric OS", "version": {"version_data": [{"version_value": "Brocade Fabric OS before Brocade Fabric OS v9.0.1a and v8.2.3a"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "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."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "authentication bypass"}]}]}, "references": {"reference_data": [{"name": "https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2021-1491", "refsource": "MISC", "url": "https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2021-1491"}, {"name": "https://security.netapp.com/advisory/ntap-20210819-0002/", "refsource": "CONFIRM", "url": "https://security.netapp.com/advisory/ntap-20210819-0002/"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T21:33:15.770Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2021-1491"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://security.netapp.com/advisory/ntap-20210819-0002/"}]}]}, "cveMetadata": {"assignerOrgId": "87b297d7-335e-4844-9551-11b97995a791", "assignerShortName": "brocade", "cveId": "CVE-2021-27791", "datePublished": "2021-08-12T14:27:35.000Z", "dateReserved": "2021-02-26T00:00:00.000Z", "dateUpdated": "2024-08-03T21:33:15.770Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "Brocade Fabric OS", "vendor": "n/a", "versions": [{"status": "affected", "version": "Brocade Fabric OS before Brocade Fabric OS v9.0.1a and v8.2.3a"}]}], "source": "sirt@brocade.com"}], "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": "2026-06-17T03:45:27.727", "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"}]}

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