{"containers": {"cna": {"affected": [{"product": "EOS", "vendor": "Arista Networks", "versions": [{"lessThanOrEqual": "4.26.0", "status": "affected", "version": "4.26.3F", "versionType": "custom"}, {"lessThanOrEqual": "4.27.0", "status": "affected", "version": "4.27.0F", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "On Arista Strata family products which have \u201cTCAM profile\u201d feature enabled when Port IPv4 access-list has a rule which matches on \u201cvxlan\u201d as protocol then that rule and subsequent rules ( rules declared after it in ACL ) do not match on IP protocol field as expected."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-284", "description": "CWE-284 Improper Access Control", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2022-04-01T22:17:50", "orgId": "c8b34d1a-69ae-45c3-88fe-f3b3d44f39b7", "shortName": "Arista"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/15267-security-advisory-0073"}], "solutions": [{"lang": "en", "value": "The recommended resolution is to upgrade to a remediated software version at your earliest convenience. Artista recommends customers move to the latest version of each release that contains all the fixes listed below.\n\nCVE-2021-28504 has been fixed in the following releases:\n\n4.26.4F and later releases in the 4.26.x train\n4.27.1M and later releases in the 4.27.x train"}], "source": {"advisory": "73", "defect": ["BUG608752"], "discovery": "INTERNAL"}, "title": "On Arista Strata family products which have \u201cTCAM profile\u201d feature enabled when Port IPv4 access-list has a rule which matches on \u201cvxlan\u201d as protocol then that rule and subsequent rules ( rules declared after it in ACL ) do not match on IP protocol fi ...", "workarounds": [{"lang": "en", "value": "Replace \"vxlan\" IP protocol match with match on IP protocol \"udp\" and Layer 4 destination port for VxLAN encapsulated packets i.e 4789. \nIf VXLAN L4 destination port number is not the default 4789 then use the configured L4 destination port number."}], "x_ConverterErrors": {"TITLE": {"error": "TITLE too long. Truncating in v5 record.", "message": "Truncated!"}}, "x_generator": {"engine": "Vulnogram 0.0.9"}, "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "[email protected]", "ID": "CVE-2021-28504", "STATE": "PUBLIC", "TITLE": "On Arista Strata family products which have \u201cTCAM profile\u201d feature enabled when Port IPv4 access-list has a rule which matches on \u201cvxlan\u201d as protocol then that rule and subsequent rules ( rules declared after it in ACL ) do not match on IP protocol field as expected."}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "EOS", "version": {"version_data": [{"version_affected": "<=", "version_name": "4.26.3F", "version_value": "4.26.0"}, {"version_affected": "<=", "version_name": "4.27.0F", "version_value": "4.27.0"}]}}]}, "vendor_name": "Arista Networks"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "On Arista Strata family products which have \u201cTCAM profile\u201d feature enabled when Port IPv4 access-list has a rule which matches on \u201cvxlan\u201d as protocol then that rule and subsequent rules ( rules declared after it in ACL ) do not match on IP protocol field as expected."}]}, "generator": {"engine": "Vulnogram 0.0.9"}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-284 Improper Access Control"}]}]}, "references": {"reference_data": [{"name": "https://www.arista.com/en/support/advisories-notices/security-advisories/15267-security-advisory-0073", "refsource": "MISC", "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/15267-security-advisory-0073"}]}, "solution": [{"lang": "en", "value": "The recommended resolution is to upgrade to a remediated software version at your earliest convenience. Artista recommends customers move to the latest version of each release that contains all the fixes listed below.\n\nCVE-2021-28504 has been fixed in the following releases:\n\n4.26.4F and later releases in the 4.26.x train\n4.27.1M and later releases in the 4.27.x train"}], "source": {"advisory": "73", "defect": ["BUG608752"], "discovery": "INTERNAL"}, "work_around": [{"lang": "en", "value": "Replace \"vxlan\" IP protocol match with match on IP protocol \"udp\" and Layer 4 destination port for VxLAN encapsulated packets i.e 4789. \nIf VXLAN L4 destination port number is not the default 4789 then use the configured L4 destination port number."}]}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T21:47:32.630Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/15267-security-advisory-0073"}]}]}, "cveMetadata": {"assignerOrgId": "c8b34d1a-69ae-45c3-88fe-f3b3d44f39b7", "assignerShortName": "Arista", "cveId": "CVE-2021-28504", "datePublished": "2022-04-01T22:17:50", "dateReserved": "2021-03-16T00:00:00", "dateUpdated": "2024-08-03T21:47:32.630Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*", "matchCriteriaId": "2A8E9397-1B74-4A40-B8E3-7088A5A45749", "versionEndExcluding": "4.26.4m", "versionStartIncluding": "4.26", "vulnerable": true}, {"criteria": "cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*", "matchCriteriaId": "F85F865B-F425-46DD-B9D4-C96AE100F39F", "versionEndExcluding": "4.27.1f", "versionStartIncluding": "4.27", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:arista:ccs-710p-12:-:*:*:*:*:*:*:*", "matchCriteriaId": "3671762A-7E5C-47BF-AE10-64F19C82EEDF", "vulnerable": false}, {"criteria": "cpe:2.3:h:arista:ccs-710p-16p:-:*:*:*:*:*:*:*", "matchCriteriaId": "AC8C4306-2090-4170-B316-79613AA19392", "vulnerable": false}, {"criteria": "cpe:2.3:h:arista:ccs-720xp-24y6:-:*:*:*:*:*:*:*", "matchCriteriaId": "45460268-9775-4047-B36D-1A62480047C7", "vulnerable": false}, {"criteria": "cpe:2.3:h:arista:ccs-720xp-24zy4:-:*:*:*:*:*:*:*", "matchCriteriaId": "7A3886D9-AB47-4E4B-95E6-39E31100FE62", "vulnerable": false}, {"criteria": "cpe:2.3:h:arista:ccs-720xp-48y6:-:*:*:*:*:*:*:*", "matchCriteriaId": "4D21D207-AD0F-4745-B123-A7219DD6512F", "vulnerable": false}, {"criteria": "cpe:2.3:h:arista:ccs-720xp-48zc2:-:*:*:*:*:*:*:*", "matchCriteriaId": "B317039B-7365-4348-8286-39128C4B363F", "vulnerable": false}, {"criteria": "cpe:2.3:h:arista:ccs-720xp-96zc2:-:*:*:*:*:*:*:*", "matchCriteriaId": "2E58B31B-C6C1-4EDC-8D4F-1528C9B1CB8A", "vulnerable": false}, {"criteria": "cpe:2.3:h:arista:ccs-722xpm-48y4:-:*:*:*:*:*:*:*", "matchCriteriaId": "074CBF00-1D2C-4388-874A-62453B1D4564", "vulnerable": false}, {"criteria": "cpe:2.3:h:arista:ccs-722xpm-48zy8:-:*:*:*:*:*:*:*", "matchCriteriaId": "D15C1D00-5F35-4F67-8075-D84D3BD9CE73", "vulnerable": false}, {"criteria": "cpe:2.3:h:arista:dcs-7010tx-48:-:*:*:*:*:*:*:*", "matchCriteriaId": "9CB43CD4-C96F-483C-B743-3D81C9A65EDF", "vulnerable": false}, {"criteria": "cpe:2.3:h:arista:dcs-7050cx3-32s:-:*:*:*:*:*:*:*", "matchCriteriaId": "E7C133EA-753A-4770-AEF8-11AC8E901F1A", "vulnerable": false}, {"criteria": "cpe:2.3:h:arista:dcs-7050cx3m-32s:-:*:*:*:*:*:*:*", "matchCriteriaId": "5D11D6B9-1E68-4A65-A9CD-8DD299EC6B25", "vulnerable": false}, {"criteria": "cpe:2.3:h:arista:dcs-7050sx3-48c8:-:*:*:*:*:*:*:*", "matchCriteriaId": "11B7A876-587F-4C51-BE49-C82F6508C536", "vulnerable": false}, {"criteria": "cpe:2.3:h:arista:dcs-7050sx3-48yc12:-:*:*:*:*:*:*:*", "matchCriteriaId": "EEB629B5-7E62-4972-A288-EF76FFA3E441", "vulnerable": false}, {"criteria": "cpe:2.3:h:arista:dcs-7050sx3-48yc8:-:*:*:*:*:*:*:*", "matchCriteriaId": "33079D44-2255-4682-A4BC-4B071D8EDCFA", "vulnerable": false}, {"criteria": "cpe:2.3:h:arista:dcs-7050sx3-96yc8:-:*:*:*:*:*:*:*", "matchCriteriaId": "69F1C5CA-19D7-4F40-93EB-97F44DCD5DCB", "vulnerable": false}, {"criteria": "cpe:2.3:h:arista:dcs-7050tx3-48c8:-:*:*:*:*:*:*:*", "matchCriteriaId": "418E2ED9-B9FC-438D-9F7C-8D6DB7E297AA", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "descriptions": [{"lang": "en", "value": "On Arista Strata family products which have \u201cTCAM profile\u201d feature enabled when Port IPv4 access-list has a rule which matches on \u201cvxlan\u201d as protocol then that rule and subsequent rules ( rules declared after it in ACL ) do not match on IP protocol field as expected."}, {"lang": "es", "value": "En los productos de la familia Arista Strata que tienen habilitada la funcionalidad \"perfil TCAM\", cuando la lista de acceso IPv4 del puerto presenta una regla que coincide con \"vxlan\" como protocolo, esa regla y las reglas posteriores (reglas declaradas despu\u00e9s de ella en la ACL) no coinciden con el campo de protocolo IP como era esperado"}], "id": "CVE-2021-28504", "lastModified": "2024-11-21T05:59:47.823", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 4.3, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "[email protected]", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "[email protected]", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "[email protected]", "type": "Primary"}]}, "published": "2022-04-01T23:15:09.380", "references": [{"source": "[email protected]", "tags": ["Mitigation", "Vendor Advisory"], "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/15267-security-advisory-0073"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mitigation", "Vendor Advisory"], "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/15267-security-advisory-0073"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-284"}], "source": "[email protected]", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-863"}], "source": "[email protected]", "type": "Primary"}]}

{}