CVE-2019-8372

The LHA.sys driver before 1.1.1811.2101 in LG Device Manager exposes functionality that allows low-privileged users to read and write arbitrary physical memory via specially crafted IOCTL requests and elevate system privileges. This occurs because the device object has an associated symbolic link and an open DACL.

CVSS v3 7.0 HIGH
CVSS v2.0 6.9 MEDIUM

7.0^/10

CVSS v3 : HIGH

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

Exploitability : 1.0 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.9^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 3.4 / Impact : 10.0

Access Vector LOCAL

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
http://www.jackson-t.ca/lg-driver-lpe.html	Exploit Third Party Advisory
https://lgsecurity.lge.com/security_updates.html	Vendor Advisory
https://twitter.com/Jackson_T/status/1097353402034475009	Third Party Advisory
http://www.jackson-t.ca/lg-driver-lpe.html	Exploit Third Party Advisory
https://lgsecurity.lge.com/security_updates.html	Vendor Advisory
https://twitter.com/Jackson_T/status/1097353402034475009	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:lg:lha.sys:*:*:*:*:*:*:*:*

History

21 Nov 2024, 04:49

Type	Values Removed	Values Added
References	~~() http://www.jackson-t.ca/lg-driver-lpe.html - Exploit, Third Party Advisory~~	() http://www.jackson-t.ca/lg-driver-lpe.html - Exploit, Third Party Advisory
References	~~() https://lgsecurity.lge.com/security_updates.html - Vendor Advisory~~	() https://lgsecurity.lge.com/security_updates.html - Vendor Advisory
References	~~() https://twitter.com/Jackson_T/status/1097353402034475009 - Third Party Advisory~~	() https://twitter.com/Jackson_T/status/1097353402034475009 - Third Party Advisory

Information

Published : 2019-02-18 15:29

Updated : 2024-11-21 04:49

NVD link : CVE-2019-8372

Mitre link : CVE-2019-8372

CVE.ORG link : CVE-2019-8372

JSON object : View

Products Affected

lg

lha.sys

CWE

CWE-59

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

{"id": "CVE-2019-8372", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 6.9, "accessVector": "LOCAL", "vectorString": "AV:L/AC:M/Au:N/C:C/I:C/A:C", "authentication": "NONE", "integrityImpact": "COMPLETE", "accessComplexity": "MEDIUM", "availabilityImpact": "COMPLETE", "confidentialityImpact": "COMPLETE"}, "acInsufInfo": false, "impactScore": 10.0, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 3.4, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV30": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 7.0, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.0}]}, "published": "2019-02-18T15:29:00.387", "references": [{"url": "http://www.jackson-t.ca/lg-driver-lpe.html", "tags": ["Exploit", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://lgsecurity.lge.com/security_updates.html", "tags": ["Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "https://twitter.com/Jackson_T/status/1097353402034475009", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "http://www.jackson-t.ca/lg-driver-lpe.html", "tags": ["Exploit", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lgsecurity.lge.com/security_updates.html", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://twitter.com/Jackson_T/status/1097353402034475009", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-59"}]}], "descriptions": [{"lang": "en", "value": "The LHA.sys driver before 1.1.1811.2101 in LG Device Manager exposes functionality that allows low-privileged users to read and write arbitrary physical memory via specially crafted IOCTL requests and elevate system privileges. This occurs because the device object has an associated symbolic link and an open DACL."}, {"lang": "es", "value": "El controlador \"LHA.sys\", en versiones anteriores a la 1.1.1811.2101 en LG Device Manager, expone una funcionalidad que permite a usuarios con privilegios bajos leer y escribir memoria f\u00edsica arbitraria mediante peticiones IOCTL especialmente manipuladas y elevar los privilegios del sistema. Esto ocurre debido a que el objeto \"device\" tiene asociado un enlace simb\u00f3lico y un DACL abierto."}], "lastModified": "2024-11-21T04:49:46.397", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:lg:lha.sys:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B5FD6206-A734-4DCE-9A93-3D6F28BA6223", "versionEndExcluding": "1.1.1811.2101"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}