CVE-2021-28495

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This issue affects: Arista Metamako Operating System All releases in the MOS-0.1x train MOS-0.13 and post releases in the MOS-0.1x train MOS-0.26.6 and below releases in the MOS-0.2x train MOS-0.31.1 and below releases in the MOS-0.3x train"}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7.2, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-287", "description": "CWE-287 Improper Authentication", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2021-09-09T12:43:57.000Z", "orgId": "c8b34d1a-69ae-45c3-88fe-f3b3d44f39b7", "shortName": "Arista"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/12914-security-advisory-66"}], "solutions": [{"lang": "en", "value": "Upgrade to MOS-0.26.7 or MOS-0.32.0"}, {"lang": "en", "value": "Install hotfix stored at https://www.arista.com/assets/data/SecurityAdvisories/SA64-67/SecurityAdvisory64-67-Hotfix-mos-1818-2.0.0-1.11.core2_64.rpm\nFor detailed information about hotfix installation, please see the advisory https://www.arista.com/en/support/advisories-notices/security-advisories/12912-security-advisory-64"}], "source": {"discovery": "INTERNAL"}, "x_generator": {"engine": "Vulnogram 0.0.9"}, "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "psirt@arista.com", "ID": "CVE-2021-28495", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Metamako Operating System", "version": {"version_data": [{"platform": "Arista 7130 Systems running MOS", "version_affected": ">=", "version_name": "MOS-0.13", "version_value": "MOS-0.13"}, {"platform": "Arista 7130 Systems running MOS", "version_affected": "<", "version_name": "MOS-0.26.7", "version_value": "MOS-0.26.7"}, {"platform": "Arista 7130 Systems running MOS", "version_affected": "<", "version_name": "MOS-0.32.0", "version_value": "MOS-0.32.0"}]}}]}, "vendor_name": "Arista"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "In Arista's MOS (Metamako Operating System) software which is supported on the 7130 product line, under certain conditions, user authentication can be bypassed when API access is enabled via the JSON-RPC APIs. This issue affects: Arista Metamako Operating System All releases in the MOS-0.1x train MOS-0.13 and post releases in the MOS-0.1x train MOS-0.26.6 and below releases in the MOS-0.2x train MOS-0.31.1 and below releases in the MOS-0.3x train"}]}, "generator": {"engine": "Vulnogram 0.0.9"}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7.2, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-287 Improper Authentication"}]}]}, "references": {"reference_data": [{"name": "https://www.arista.com/en/support/advisories-notices/security-advisories/12914-security-advisory-66", "refsource": "MISC", "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/12914-security-advisory-66"}]}, "solution": [{"lang": "en", "value": "Upgrade to MOS-0.26.7 or MOS-0.32.0"}, {"lang": "en", "value": "Install hotfix stored at https://www.arista.com/assets/data/SecurityAdvisories/SA64-67/SecurityAdvisory64-67-Hotfix-mos-1818-2.0.0-1.11.core2_64.rpm\nFor detailed information about hotfix installation, please see the advisory https://www.arista.com/en/support/advisories-notices/security-advisories/12912-security-advisory-64"}], "source": {"discovery": "INTERNAL"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T21:47:32.686Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/12914-security-advisory-66"}]}]}, "cveMetadata": {"assignerOrgId": "c8b34d1a-69ae-45c3-88fe-f3b3d44f39b7", "assignerShortName": "Arista", "cveId": "CVE-2021-28495", "datePublished": "2021-09-09T12:43:57.000Z", "dateReserved": "2021-03-16T00:00:00.000Z", "dateUpdated": "2024-08-03T21:47:32.686Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"platforms": ["Arista 7130 Systems running MOS"], "product": "Metamako Operating System", "vendor": "Arista", "versions": [{"lessThan": "MOS-0.13*", "status": "affected", "version": "MOS-0.13", "versionType": "custom"}, {"lessThan": "MOS-0.26.7", "status": "affected", "version": "MOS-0.26.7", "versionType": "custom"}, {"lessThan": "MOS-0.32.0", "status": "affected", "version": "MOS-0.32.0", "versionType": "custom"}]}], "source": "psirt@arista.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:arista:metamako_operating_system:*:*:*:*:*:*:*:*", "matchCriteriaId": "6B89974C-FC70-4BA1-B700-2F0E1A448939", "versionEndIncluding": "0.13.0", "versionStartIncluding": "0.10.0", "vulnerable": true}, {"criteria": "cpe:2.3:o:arista:metamako_operating_system:*:*:*:*:*:*:*:*", "matchCriteriaId": "A83336C6-BEDD-4A4B-8A4D-D230274BC9BC", "versionEndIncluding": "0.26.7", "versionStartIncluding": "0.20.0", "vulnerable": true}, {"criteria": "cpe:2.3:o:arista:metamako_operating_system:*:*:*:*:*:*:*:*", "matchCriteriaId": "679CE6C2-27E1-4C2C-BF0C-51B158870F6B", "versionEndExcluding": "0.32.0", "versionStartIncluding": "0.30.0", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:arista:7130:-:*:*:*:*:*:*:*", "matchCriteriaId": "4D832798-DA45-4F9E-AA31-5D088253A28A", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In Arista's MOS (Metamako Operating System) software which is supported on the 7130 product line, under certain conditions, user authentication can be bypassed when API access is enabled via the JSON-RPC APIs. This issue affects: Arista Metamako Operating System All releases in the MOS-0.1x train MOS-0.13 and post releases in the MOS-0.1x train MOS-0.26.6 and below releases in the MOS-0.2x train MOS-0.31.1 and below releases in the MOS-0.3x train"}, {"lang": "es", "value": "En el software MOS (Sistema Operativo Metamako) de Arista, que es compatible con la l\u00ednea de productos 7130, en determinadas condiciones, la autenticaci\u00f3n del usuario puede omitirse cuando se habilita el acceso a la API por medio de las API JSON-RPC. Este problema afecta a: Sistema Operativo Arista Metamako Todas las versiones MOS-0.1x train MOS-0.13 y posteriores en MOS-0.1x train MOS-0.26.6 y posteriores en MOS-0.2x train MOS-0.31.1 y posteriores en MOS-0.3x train"}], "id": "CVE-2021-28495", "lastModified": "2026-06-17T03:46:27.790", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 6.8, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7.2, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 2.7, "source": "psirt@arista.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-09-09T13:15:09.103", "references": [{"source": "psirt@arista.com", "tags": ["Mitigation", "Vendor Advisory"], "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/12914-security-advisory-66"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mitigation", "Vendor Advisory"], "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/12914-security-advisory-66"}], "sourceIdentifier": "psirt@arista.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-287"}], "source": "psirt@arista.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-287"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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