CVE-2021-28506

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.

CVSS v3 9.1 CRITICAL
CVSS v2.0 9.4 HIGH

9.1^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

9.4^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:N/I:C/A:C

Exploitability : 10.0 / Impact : 9.2

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://www.arista.com/en/support/advisories-notices/security-advisories/13449-security-advisory-0071	Exploit Mitigation Patch Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:arista:eos::::::::
	cpe:2.3:o:arista:eos::::::::
	cpe:2.3:o:arista:eos::::::::
	cpe:2.3:o:arista:eos::::::::
	cpe:2.3:o:arista:eos::::::::

History

No history.

Information

Published : 2022-01-14 20:15

Updated : 2024-02-28 18:48

NVD link : CVE-2021-28506

Mitre link : CVE-2021-28506

CVE.ORG link : CVE-2021-28506

JSON object : View

Products Affected

arista

eos

CWE

CWE-306

Missing Authentication for Critical Function

CWE-862

Missing Authorization

CWE-285

Improper Authorization

{"id": "CVE-2021-28506", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 9.4, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:N/I:C/A:C", "authentication": "NONE", "integrityImpact": "COMPLETE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 9.2, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.1, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 5.2, "exploitabilityScore": 3.9}, {"type": "Secondary", "source": "psirt@arista.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.1, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 5.2, "exploitabilityScore": 3.9}]}, "published": "2022-01-14T20:15:10.327", "references": [{"url": "https://www.arista.com/en/support/advisories-notices/security-advisories/13449-security-advisory-0071", "tags": ["Exploit", "Mitigation", "Patch", "Vendor Advisory"], "source": "psirt@arista.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-306"}, {"lang": "en", "value": "CWE-862"}]}, {"type": "Secondary", "source": "psirt@arista.com", "description": [{"lang": "en", "value": "CWE-285"}]}], "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"}], "lastModified": "2022-07-14T18:47:40.203", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3753CA4E-E3ED-43AC-BD9B-0F41C274EE42", "versionEndIncluding": "4.24.7m", "versionStartIncluding": "4.24.0"}, {"criteria": "cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2DCCC623-E1C2-4E97-B5B4-87B15F596334", "versionEndIncluding": "4.25.3", "versionStartIncluding": "4.25.0"}, {"criteria": "cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A0144E14-840C-4B5C-9FDF-E090ECC33B9A", "versionEndIncluding": "4.25.4m", "versionStartIncluding": "4.25.4"}, {"criteria": "cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2D8887C7-7FE8-4CBC-BEE9-1F202E626A0C", "versionEndIncluding": "4.25.5.1m", "versionStartIncluding": "4.25.5"}, {"criteria": "cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "361E664D-9F0D-478D-A2F6-F8001F464B0A", "versionEndIncluding": "4.26.2f", "versionStartIncluding": "4.26.0"}], "operator": "OR"}]}], "sourceIdentifier": "psirt@arista.com"}