CVE-2021-43239

Windows Recovery Environment Agent Elevation of Privilege Vulnerability

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://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-43239	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:microsoft:windows_10:20h2::::::arm64:
	cpe:2.3:o:microsoft:windows_10:20h2::::::x64:
	cpe:2.3:o:microsoft:windows_10:20h2::::::x86:
	cpe:2.3:o:microsoft:windows_10:21h1::::::arm64:
	cpe:2.3:o:microsoft:windows_10:21h1::::::x64:
	cpe:2.3:o:microsoft:windows_10:21h1::::::x86:
	cpe:2.3:o:microsoft:windows_10:21h2::::::arm64:
	cpe:2.3:o:microsoft:windows_10:21h2::::::x64:
	cpe:2.3:o:microsoft:windows_10:21h2::::::x86:
	cpe:2.3:o:microsoft:windows_10:2004::::::arm64:
	cpe:2.3:o:microsoft:windows_10:2004::::::x64:
	cpe:2.3:o:microsoft:windows_10:2004::::::x86:
	cpe:2.3:o:microsoft:windows_11:-::::::arm64:
	cpe:2.3:o:microsoft:windows_11:-::::::x64:
	cpe:2.3:o:microsoft:windows_server:20h2:::::::*
	cpe:2.3:o:microsoft:windows_server:2022:::::::*
	cpe:2.3:o:microsoft:windows_server_2016:2004:::::::*

History

No history.

Information

Published : 2021-12-15 15:15

Updated : 2024-02-28 18:48

NVD link : CVE-2021-43239

Mitre link : CVE-2021-43239

CVE.ORG link : CVE-2021-43239

JSON object : View

Products Affected

microsoft

windows_server
windows_11
windows_server_2016
windows_10

CWE

NVD-CWE-noinfo

{"id": "CVE-2021-43239", "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": "secure@microsoft.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.1, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 5.2, "exploitabilityScore": 1.8}]}, "published": "2021-12-15T15:15:10.273", "references": [{"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-43239", "tags": ["Patch", "Vendor Advisory"], "source": "secure@microsoft.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "Windows Recovery Environment Agent Elevation of Privilege Vulnerability"}, {"lang": "es", "value": "Una vulnerabilidad de Elevaci\u00f3n de Privilegios de Windows Recovery Environment Agent"}], "lastModified": "2022-07-12T17:42:04.277", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:arm64:*", "vulnerable": true, "matchCriteriaId": "610B33F9-0309-4CF7-B7E4-5152D9B2FFE4"}, {"criteria": "cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:x64:*", "vulnerable": true, "matchCriteriaId": "21074553-EDF2-468D-8E79-C39851B5BC79"}, {"criteria": "cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:x86:*", "vulnerable": true, "matchCriteriaId": "4E62F9CB-D1B6-4B4D-BCCD-7F4D36A73B4D"}, {"criteria": "cpe:2.3:o:microsoft:windows_10:21h1:*:*:*:*:*:arm64:*", "vulnerable": true, "matchCriteriaId": "49A4BBDA-0389-4171-AA49-6837F7DF4454"}, {"criteria": "cpe:2.3:o:microsoft:windows_10:21h1:*:*:*:*:*:x64:*", "vulnerable": true, "matchCriteriaId": "F8C238FA-B20F-40A5-B861-A8295858F4BE"}, {"criteria": "cpe:2.3:o:microsoft:windows_10:21h1:*:*:*:*:*:x86:*", "vulnerable": true, "matchCriteriaId": "56513BCA-A9F5-4112-BDE6-77E9B8D2677E"}, {"criteria": "cpe:2.3:o:microsoft:windows_10:21h2:*:*:*:*:*:arm64:*", "vulnerable": true, "matchCriteriaId": "665EA912-D724-41EB-86A9-24EB4FE87B54"}, {"criteria": "cpe:2.3:o:microsoft:windows_10:21h2:*:*:*:*:*:x64:*", "vulnerable": true, "matchCriteriaId": "77E07B96-EAAA-4DD6-9172-0DE98A36726F"}, {"criteria": "cpe:2.3:o:microsoft:windows_10:21h2:*:*:*:*:*:x86:*", "vulnerable": true, "matchCriteriaId": "B846A736-E77C-4665-B28B-4E511880D575"}, {"criteria": "cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:arm64:*", "vulnerable": true, "matchCriteriaId": "E6132F03-DA28-4830-A69F-C2154C7FD96C"}, {"criteria": "cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:x64:*", "vulnerable": true, "matchCriteriaId": "09D9A720-8D3C-4699-AC57-CB4531E5BFEB"}, {"criteria": "cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:x86:*", "vulnerable": true, "matchCriteriaId": "BF67A7F7-466F-467D-8D2B-3273714D43C3"}, {"criteria": "cpe:2.3:o:microsoft:windows_11:-:*:*:*:*:*:arm64:*", "vulnerable": true, "matchCriteriaId": "B9F64296-66BF-4F1D-A11C-0C44C347E2AC"}, {"criteria": "cpe:2.3:o:microsoft:windows_11:-:*:*:*:*:*:x64:*", "vulnerable": true, "matchCriteriaId": "5D7F7DDB-440E-42CD-82F4-B2C13F3CC462"}, {"criteria": "cpe:2.3:o:microsoft:windows_server:20h2:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1EAF6DBA-6E3A-4854-BFBF-B5DC36CE5929"}, {"criteria": "cpe:2.3:o:microsoft:windows_server:2022:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BE257836-4F4D-4352-8293-B9CAD34F8794"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2016:2004:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0B60D940-80C7-49F0-8F4E-3F99AC15FA82"}], "operator": "OR"}]}], "sourceIdentifier": "secure@microsoft.com"}