CVE-2021-31205

Windows SMB Client Security Feature Bypass Vulnerability

CVSS v3 6.5 MEDIUM
CVSS v2.0 4.3 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

4.3^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31205	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:microsoft:windows_10:20h2:::::::*
	cpe:2.3:o:microsoft:windows_10:2004:::::::*
	cpe:2.3:o:microsoft:windows_server_2016:20h2:::::::*
	cpe:2.3:o:microsoft:windows_server_2016:2004:::::::*

History

No history.

Information

Published : 2021-05-11 19:15

Updated : 2023-11-06 23:15

NVD link : CVE-2021-31205

Mitre link : CVE-2021-31205

CVE.ORG link : CVE-2021-31205

JSON object : View

Products Affected

microsoft

windows_server_2016
windows_10

CWE

NVD-CWE-noinfo

{"id": "CVE-2021-31205", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 4.3, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "MEDIUM", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 2.8}, {"type": "Secondary", "source": "secure@microsoft.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "published": "2021-05-11T19:15:10.363", "references": [{"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31205", "tags": ["Patch", "Vendor Advisory"], "source": "secure@microsoft.com"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "Windows SMB Client Security Feature Bypass Vulnerability"}, {"lang": "es", "value": "Una vulnerabilidad de Omisi\u00f3n de la Caracter\u00edstica de Seguridad de Windows SMB Client"}], "lastModified": "2023-11-06T23:15:10.030", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9E2C378B-1507-4C81-82F6-9F599616845A"}, {"criteria": "cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "AAE74AF3-C559-4645-A6C0-25C3D647AAC8"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2016:20h2:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4A190388-AA82-4504-9D5A-624F23268C9F"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2016:2004:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0B60D940-80C7-49F0-8F4E-3F99AC15FA82"}], "operator": "OR"}]}], "sourceIdentifier": "secure@microsoft.com"}