CVE-2021-28506

{"containers": {"cna": {"affected": [{"product": "EOS", "vendor": "Arista Networks", "versions": [{"lessThanOrEqual": "4.26.0", "status": "affected", "version": "4.26.2F", "versionType": "custom"}, {"lessThanOrEqual": "4.25.5", "status": "affected", "version": "4.25.5.1M", "versionType": "custom"}, {"lessThanOrEqual": "4.25.4", "status": "affected", "version": "4.25.4M", "versionType": "custom"}, {"lessThanOrEqual": "4.25.0", "status": "affected", "version": "4.25.3", "versionType": "custom"}, {"lessThanOrEqual": "4.24.2F", "status": "affected", "version": "4.24.7M", "versionType": "custom"}]}], "datePublic": "2022-01-11T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "An issue has recently been discovered in Arista EOS where certain gNOI APIs incorrectly skip authorization and authentication which could potentially allow a factory reset of the device."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.1, "baseSeverity": "CRITICAL", "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:H", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-285", "description": "CWE-285 Improper Authorization", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2022-01-14T19:04:50.000Z", "orgId": "c8b34d1a-69ae-45c3-88fe-f3b3d44f39b7", "shortName": "Arista"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/13449-security-advisory-0071"}], "solutions": [{"lang": "en", "value": "The recommended resolution is to upgrade to a remediated software version at your earliest convenience. Arista recommends customers move to the latest version of each release. \nCVE-2021-28506 has been fixed in the following releases:\n4.26.3M and later releases in the 4.26.x train\n4.25.6M and later releases in the 4.25.x train\n4.25.4.1M and later releases in the 4.25.4.x train\n4.24.8M and later releases in the 4.24.x train"}], "source": {"advisory": "71", "defect": ["BUG", "606192"], "discovery": "EXTERNAL"}, "title": "An issue has recently been discovered in Arista EOS where certain gNOI APIs incorrectly skip authorization and authentication which could potentially allow a factory reset of the device.", "workarounds": [{"lang": "en", "value": "No mitigation options available"}, {"lang": "en", "value": "To mitigate CVE-2021-28506 with the continued use of the affected agents, a hotfix employing a proxy service can be deployed. The proxy is configured behind the gNMI/gNOI or RESTCONF server. The hotfix can be downloaded at https://www.arista.com/en/support/advisories-notices/sa-download/?sa=71-SecurityAdvisory0071Hotfix.i386.swix for 32 bit systems and https://www.arista.com/en/support/advisories-notices/sa-download/?sa=71-SecurityAdvisory0071Hotfix.x86_64.swix for 64 bit systems."}], "x_generator": {"engine": "Vulnogram 0.0.9"}, "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "psirt@arista.com", "DATE_PUBLIC": "2022-01-11T22:22:00.000Z", "ID": "CVE-2021-28506", "STATE": "PUBLIC", "TITLE": "An issue has recently been discovered in Arista EOS where certain gNOI APIs incorrectly skip authorization and authentication which could potentially allow a factory reset of the device."}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "EOS", "version": {"version_data": [{"version_affected": "<=", "version_name": "4.26.2F", "version_value": "4.26.0"}, {"version_affected": "<=", "version_name": "4.25.5.1M", "version_value": "4.25.5"}, {"version_affected": "<=", "version_name": "4.25.4M", "version_value": "4.25.4"}, {"version_affected": "<=", "version_name": "4.25.3", "version_value": "4.25.0"}, {"version_affected": "<=", "version_name": "4.24.7M", "version_value": "4.24.2F"}]}}]}, "vendor_name": "Arista Networks"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "An issue has recently been discovered in Arista EOS where certain gNOI APIs incorrectly skip authorization and authentication which could potentially allow a factory reset of the device."}]}, "generator": {"engine": "Vulnogram 0.0.9"}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.1, "baseSeverity": "CRITICAL", "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:H", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-285 Improper Authorization"}]}]}, "references": {"reference_data": [{"name": "https://www.arista.com/en/support/advisories-notices/security-advisories/13449-security-advisory-0071", "refsource": "MISC", "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/13449-security-advisory-0071"}]}, "solution": [{"lang": "en", "value": "The recommended resolution is to upgrade to a remediated software version at your earliest convenience. Arista recommends customers move to the latest version of each release. \nCVE-2021-28506 has been fixed in the following releases:\n4.26.3M and later releases in the 4.26.x train\n4.25.6M and later releases in the 4.25.x train\n4.25.4.1M and later releases in the 4.25.4.x train\n4.24.8M and later releases in the 4.24.x train"}], "source": {"advisory": "71", "defect": ["BUG", "606192"], "discovery": "EXTERNAL"}, "work_around": [{"lang": "en", "value": "No mitigation options available"}, {"lang": "en", "value": "To mitigate CVE-2021-28506 with the continued use of the affected agents, a hotfix employing a proxy service can be deployed. The proxy is configured behind the gNMI/gNOI or RESTCONF server. The hotfix can be downloaded at https://www.arista.com/en/support/advisories-notices/sa-download/?sa=71-SecurityAdvisory0071Hotfix.i386.swix for 32 bit systems and https://www.arista.com/en/support/advisories-notices/sa-download/?sa=71-SecurityAdvisory0071Hotfix.x86_64.swix for 64 bit systems."}]}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T21:47:32.674Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/13449-security-advisory-0071"}]}]}, "cveMetadata": {"assignerOrgId": "c8b34d1a-69ae-45c3-88fe-f3b3d44f39b7", "assignerShortName": "Arista", "cveId": "CVE-2021-28506", "datePublished": "2022-01-14T19:04:50.282Z", "dateReserved": "2021-03-16T00:00:00.000Z", "dateUpdated": "2024-09-16T22:09:48.017Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "EOS", "vendor": "Arista Networks", "versions": [{"lessThanOrEqual": "4.26.0", "status": "affected", "version": "4.26.2F", "versionType": "custom"}, {"lessThanOrEqual": "4.25.5", "status": "affected", "version": "4.25.5.1M", "versionType": "custom"}, {"lessThanOrEqual": "4.25.4", "status": "affected", "version": "4.25.4M", "versionType": "custom"}, {"lessThanOrEqual": "4.25.0", "status": "affected", "version": "4.25.3", "versionType": "custom"}, {"lessThanOrEqual": "4.24.2F", "status": "affected", "version": "4.24.7M", "versionType": "custom"}]}], "source": "psirt@arista.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*", "matchCriteriaId": "3753CA4E-E3ED-43AC-BD9B-0F41C274EE42", "versionEndIncluding": "4.24.7m", "versionStartIncluding": "4.24.0", "vulnerable": true}, {"criteria": "cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*", "matchCriteriaId": "2DCCC623-E1C2-4E97-B5B4-87B15F596334", "versionEndIncluding": "4.25.3", "versionStartIncluding": "4.25.0", "vulnerable": true}, {"criteria": "cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*", "matchCriteriaId": "A0144E14-840C-4B5C-9FDF-E090ECC33B9A", "versionEndIncluding": "4.25.4m", "versionStartIncluding": "4.25.4", "vulnerable": true}, {"criteria": "cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*", "matchCriteriaId": "2D8887C7-7FE8-4CBC-BEE9-1F202E626A0C", "versionEndIncluding": "4.25.5.1m", "versionStartIncluding": "4.25.5", "vulnerable": true}, {"criteria": "cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*", "matchCriteriaId": "361E664D-9F0D-478D-A2F6-F8001F464B0A", "versionEndIncluding": "4.26.2f", "versionStartIncluding": "4.26.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An issue has recently been discovered in Arista EOS where certain gNOI APIs incorrectly skip authorization and authentication which could potentially allow a factory reset of the device."}, {"lang": "es", "value": "Se ha detectado recientemente un problema en Arista EOS donde determinadas API de gNOI omiten incorrectamente la autorizaci\u00f3n y la autenticaci\u00f3n, lo que podr\u00eda permitir un restablecimiento de f\u00e1brica del dispositivo"}], "id": "CVE-2021-28506", "lastModified": "2026-06-17T03:46:29.087", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 9.4, "confidentialityImpact": "NONE", "integrityImpact": "COMPLETE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:C/A:C", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 9.2, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.1, "baseSeverity": "CRITICAL", "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:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.2, "source": "psirt@arista.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.1, "baseSeverity": "CRITICAL", "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:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2022-01-14T20:15:10.327", "references": [{"source": "psirt@arista.com", "tags": ["Exploit", "Mitigation", "Patch", "Vendor Advisory"], "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/13449-security-advisory-0071"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Mitigation", "Patch", "Vendor Advisory"], "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/13449-security-advisory-0071"}], "sourceIdentifier": "psirt@arista.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-285"}], "source": "psirt@arista.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-306"}, {"lang": "en", "value": "CWE-862"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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