CVE-2018-8449

A security feature bypass exists when Device Guard incorrectly validates an untrusted file, aka "Device Guard Security Feature Bypass Vulnerability." This affects Windows Server 2016, Windows 10, Windows 10 Servers.

CVSS v3.0 3.3 LOW
CVSS v2.0 2.1 LOW

3.3^/10

CVSS v3.0 : LOW

Vector : AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Exploitability : 1.8 / Impact : 1.4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

2.1^/10

CVSS v2.0 : LOW

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

Exploitability : 3.9 / Impact : 2.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8449	Patch Vendor Advisory
http://www.securitytracker.com/id/1041642	Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/105272	Third Party Advisory VDB Entry
https://www.exploit-db.com/exploits/45435/	Third Party Advisory VDB Entry

Advertisement

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:microsoft:windows_10:1803:::::::*
	cpe:2.3:o:microsoft:windows_10:-:::::::*
	cpe:2.3:o:microsoft:windows_server_2016:1709:::::::*
	cpe:2.3:o:microsoft:windows_server_2016:1803:::::::*
	cpe:2.3:o:microsoft:windows_10:1607:::::::*
	cpe:2.3:o:microsoft:windows_10:1709:::::::*
	cpe:2.3:o:microsoft:windows_10:1703:::::::*
	cpe:2.3:o:microsoft:windows_server_2016:-:::::::*

Information

Published : 2018-09-12 17:29

Updated : 2019-10-02 17:03

NVD link : CVE-2018-8449

Mitre link : CVE-2018-8449

JSON object : View

CWE

CWE-367

Time-of-check Time-of-use (TOCTOU) Race Condition

Advertisement

Products Affected

microsoft

windows_server_2016
windows_10

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8449", "name": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8449", "tags": ["Patch", "Vendor Advisory"], "refsource": "CONFIRM"}, {"url": "http://www.securitytracker.com/id/1041642", "name": "1041642", "tags": ["Third Party Advisory", "VDB Entry"], "refsource": "SECTRACK"}, {"url": "http://www.securityfocus.com/bid/105272", "name": "105272", "tags": ["Third Party Advisory", "VDB Entry"], "refsource": "BID"}, {"url": "https://www.exploit-db.com/exploits/45435/", "name": "45435", "tags": ["Third Party Advisory", "VDB Entry"], "refsource": "EXPLOIT-DB"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "A security feature bypass exists when Device Guard incorrectly validates an untrusted file, aka \"Device Guard Security Feature Bypass Vulnerability.\" This affects Windows Server 2016, Windows 10, Windows 10 Servers."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-367"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2018-8449", "ASSIGNER": "secure@microsoft.com"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 2.1, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:N/I:P/A:N", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "NONE"}, "severity": "LOW", "impactScore": 2.9, "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 3.3, "attackVector": "LOCAL", "baseSeverity": "LOW", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 1.8}}, "publishedDate": "2018-09-13T00:29Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:microsoft:windows_server_2016:1709:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:microsoft:windows_server_2016:1803:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:microsoft:windows_10:1703:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2019-10-03T00:03Z"}