CVE-2021-42011

An incorrect permission assignment vulnerability in Trend Micro Apex One and Apex One as a Service could allow a local attacker to load a DLL with escalated privileges on affected installations. Please note: an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this 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://success.trendmicro.com/solution/000289229	Patch Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-1220/	Third Party Advisory VDB Entry
https://success.trendmicro.com/solution/000289229	Patch Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-1220/	Third Party Advisory VDB Entry

Configurations

Configuration 1 (hide)

AND

OR	cpe:2.3:a:trendmicro:apex_one:2019:::::::*
	cpe:2.3:a:trendmicro:apex_one:2019::::saas:::

cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*

History

21 Nov 2024, 06:27

Type	Values Removed	Values Added
References	~~() https://success.trendmicro.com/solution/000289229 - Patch, Vendor Advisory~~	() https://success.trendmicro.com/solution/000289229 - Patch, Vendor Advisory
References	~~() https://www.zerodayinitiative.com/advisories/ZDI-21-1220/ - Third Party Advisory, VDB Entry~~	() https://www.zerodayinitiative.com/advisories/ZDI-21-1220/ - Third Party Advisory, VDB Entry

Information

Published : 2021-10-21 08:15

Updated : 2024-11-21 06:27

NVD link : CVE-2021-42011

Mitre link : CVE-2021-42011

CVE.ORG link : CVE-2021-42011

JSON object : View

Products Affected

trendmicro

apex_one

microsoft

windows

CWE

CWE-276

Incorrect Default Permissions

{"id": "CVE-2021-42011", "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}]}, "published": "2021-10-21T08:15:07.250", "references": [{"url": "https://success.trendmicro.com/solution/000289229", "tags": ["Patch", "Vendor Advisory"], "source": "security@trendmicro.com"}, {"url": "https://www.zerodayinitiative.com/advisories/ZDI-21-1220/", "tags": ["Third Party Advisory", "VDB Entry"], "source": "security@trendmicro.com"}, {"url": "https://success.trendmicro.com/solution/000289229", "tags": ["Patch", "Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.zerodayinitiative.com/advisories/ZDI-21-1220/", "tags": ["Third Party Advisory", "VDB Entry"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-276"}]}], "descriptions": [{"lang": "en", "value": "An incorrect permission assignment vulnerability in Trend Micro Apex One and Apex One as a Service could allow a local attacker to load a DLL with escalated privileges on affected installations. Please note: an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability."}, {"lang": "es", "value": "Una vulnerabilidad de asignaci\u00f3n de permisos incorrecta en Trend Micro Apex One y Apex One as a Service podr\u00eda permitir a un atacante local cargar una DLL con privilegios escalados en las instalaciones afectadas. Nota: un atacante debe obtener primero la capacidad de ejecutar c\u00f3digo con pocos privilegios en el sistema de destino para poder explotar esta vulnerabilidad"}], "lastModified": "2024-11-21T06:27:04.050", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:trendmicro:apex_one:2019:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "AF019D2D-C426-4D2D-A254-442CE777B41E"}, {"criteria": "cpe:2.3:a:trendmicro:apex_one:2019:*:*:*:saas:*:*:*", "vulnerable": true, "matchCriteriaId": "8FA15535-6AC8-4062-BE7B-CD545B7516E2"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "security@trendmicro.com"}