CVE-2021-28493

In Arista's MOS (Metamako Operating System) software which is supported on the 7130 product line, under certain conditions, a user may be able to execute commands despite not having the privileges to do so. This issue affects: Arista Metamako Operating System All releases in the MOS-0.1x train MOS-0.32.0 and prior releases

CVSS v3 7.8 HIGH
CVSS v2.0 4.6 MEDIUM

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

4.6^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 3.9 / Impact : 6.4

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://www.arista.com/en/support/advisories-notices/security-advisories/12915-security-advisory-67	Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:arista:metamako_operating_system:*:*:*:*:*:*:*:*

cpe:2.3:h:arista:7130:-:*:*:*:*:*:*:*

History

22 Sep 2021, 14:22

Type	Values Removed	Values Added
CWE		CWE-287
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : 4.6 v3 : 7.8
CPE		cpe:2.3:o:arista:metamako_operating_system:::::::: cpe:2.3:h:arista:7130:-:::::::*
References	~~(MISC) https://www.arista.com/en/support/advisories-notices/security-advisories/12915-security-advisory-67 -~~	(MISC) https://www.arista.com/en/support/advisories-notices/security-advisories/12915-security-advisory-67 - Mitigation, Vendor Advisory

09 Sep 2021, 13:46

Type	Values Removed	Values Added
New CVE

Information

Published : 2021-09-09 13:15

Updated : 2023-12-10 14:09

NVD link : CVE-2021-28493

Mitre link : CVE-2021-28493

CVE.ORG link : CVE-2021-28493

JSON object : View

Products Affected

arista

7130
metamako_operating_system

CWE

CWE-287

Improper Authentication

{"id": "CVE-2021-28493", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 4.6, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}, {"type": "Secondary", "source": "psirt@arista.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 8.4, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 5.8, "exploitabilityScore": 2.0}]}, "published": "2021-09-09T13:15:08.630", "references": [{"url": "https://www.arista.com/en/support/advisories-notices/security-advisories/12915-security-advisory-67", "tags": ["Mitigation", "Vendor Advisory"], "source": "psirt@arista.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-287"}]}, {"type": "Secondary", "source": "psirt@arista.com", "description": [{"lang": "en", "value": "CWE-287"}]}], "descriptions": [{"lang": "en", "value": "In Arista's MOS (Metamako Operating System) software which is supported on the 7130 product line, under certain conditions, a user may be able to execute commands despite not having the privileges to do so. This issue affects: Arista Metamako Operating System All releases in the MOS-0.1x train MOS-0.32.0 and prior releases"}, {"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, un usuario puede ejecutar comandos a pesar de no tener los privilegios para hacerlo. Este problema afecta: Sistema Operativo Arista Metamako Todas las versiones MOS-0.1x train MOS-0.32.0 y anteriores"}], "lastModified": "2021-09-22T14:22:26.360", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:arista:metamako_operating_system:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DAB3E3E1-1FA3-47DD-90BE-F84DB4A76D8D", "versionEndIncluding": "0.32.0"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:arista:7130:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "4D832798-DA45-4F9E-AA31-5D088253A28A"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "psirt@arista.com"}