CVE-2020-24556

A vulnerability in Trend Micro Apex One, OfficeScan XG SP1, Worry-Free Business Security 10 SP1 and Worry-Free Business Security Services on Microsoft Windows may allow an attacker to create a hard link to any file on the system, which then could be manipulated to gain a privilege escalation and code execution. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. Please note that version 1909 (OS Build 18363.719) of Microsoft Windows 10 mitigates hard links, but previous versions are affected.

CVSS v3 7.8 HIGH
CVSS v2.0 7.2 HIGH

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

7.2^/10

CVSS v2.0 : HIGH

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

Exploitability : 3.9 / Impact : 10.0

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://success.trendmicro.com/solution/000263632	Vendor Advisory
https://success.trendmicro.com/solution/000263633	Vendor Advisory
https://success.trendmicro.com/solution/000267260	Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-20-1093/	Third Party Advisory VDB Entry

Configurations

Configuration 1 (hide)

AND

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

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

Configuration 2 (hide)

AND

OR	cpe:2.3:o:apple:macos:-:::::::*
	cpe:2.3:o:microsoft:windows:-:::::::*

OR	cpe:2.3:a:trendmicro:worry-free_business_security:10.0:sp1::::::
	cpe:2.3:a:trendmicro:worry-free_business_security_services:-:::::::*

History

No history.

Information

Published : 2020-09-01 19:15

Updated : 2022-04-28 18:28

NVD link : CVE-2020-24556

Mitre link : CVE-2020-24556

CVE.ORG link : CVE-2020-24556

JSON object : View

Products Affected

microsoft

windows

apple

macos

trendmicro

worry-free_business_security_services
apex_one
worry-free_business_security

CWE

CWE-59

Improper Link Resolution Before File Access ('Link Following')

{"id": "CVE-2020-24556", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.2, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "authentication": "NONE", "integrityImpact": "COMPLETE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "COMPLETE"}, "acInsufInfo": false, "impactScore": 10.0, "baseSeverity": "HIGH", "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": "2020-09-01T19:15:11.807", "references": [{"url": "https://success.trendmicro.com/solution/000263632", "tags": ["Vendor Advisory"], "source": "security@trendmicro.com"}, {"url": "https://success.trendmicro.com/solution/000263633", "tags": ["Vendor Advisory"], "source": "security@trendmicro.com"}, {"url": "https://success.trendmicro.com/solution/000267260", "tags": ["Vendor Advisory"], "source": "security@trendmicro.com"}, {"url": "https://www.zerodayinitiative.com/advisories/ZDI-20-1093/", "tags": ["Third Party Advisory", "VDB Entry"], "source": "security@trendmicro.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-59"}]}], "descriptions": [{"lang": "en", "value": "A vulnerability in Trend Micro Apex One, OfficeScan XG SP1, Worry-Free Business Security 10 SP1 and Worry-Free Business Security Services on Microsoft Windows may allow an attacker to create a hard link to any file on the system, which then could be manipulated to gain a privilege escalation and code execution. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. Please note that version 1909 (OS Build 18363.719) of Microsoft Windows 10 mitigates hard links, but previous versions are affected."}, {"lang": "es", "value": "Una vulnerabilidad en Trend Micro Apex One, OfficeScan XG SP1, Worry-Free Business Security 10 SP1 y Worry-Free Business Security Services en Microsoft Windows, puede permitir a un atacante crear un enlace f\u00edsico para cualquier archivo en el sistema, que luego podr\u00eda manipularse para obtener una escalada de privilegios y una ejecuci\u00f3n de c\u00f3digo. Un atacante debe primero obtener la capacidad de ejecutar c\u00f3digo poco privilegiado en el sistema objetivo para explotar esta vulnerabilidad. Tenga en cuenta que la versi\u00f3n 1909 (compilaci\u00f3n del SO 18363.719) de Microsoft Windows 10 mitiga los enlaces f\u00edsicos, pero las versiones anteriores est\u00e1n afectadas"}], "lastModified": "2022-04-28T18:28:45.393", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA"}], "operator": "OR"}, {"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:saas:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0BD39638-1D52-4FA8-BBA0-305795D7D2E0"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "387021A0-AF36-463C-A605-32EA7DAC172E"}, {"criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:trendmicro:worry-free_business_security:10.0:sp1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FFCE8717-85D2-4F4F-91DF-C6DA341C4E19"}, {"criteria": "cpe:2.3:a:trendmicro:worry-free_business_security_services:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "36934731-5AB1-4F9A-AC28-9FB157C11217"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "security@trendmicro.com"}