7.8

CVE-2019-1064

Warning

An elevation of privilege vulnerability exists when Windows AppX Deployment Service (AppXSVC) improperly handles hard links. An attacker who successfully exploited this vulnerability could run processes in an elevated context. An attacker could then install programs; view, change or delete data.
To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control of an affected system.
The security update addresses the vulnerability by correcting how Windows AppX Deployment Service handles hard links.

Data is provided by the National Vulnerability Database (NVD)
Microsoft ≫ Windows 10 1607 Version- HwPlatformx64
Microsoft ≫ Windows 10 1607 Version- HwPlatformx86
Microsoft ≫ Windows 10 1703 Version- HwPlatformx64
Microsoft ≫ Windows 10 1703 Version- HwPlatformx86
Microsoft ≫ Windows 10 1709 Version- HwPlatformarm64
Microsoft ≫ Windows 10 1709 Version- HwPlatformx64
Microsoft ≫ Windows 10 1709 Version- HwPlatformx86
Microsoft ≫ Windows 10 1803 Version- HwPlatformarm64
Microsoft ≫ Windows 10 1803 Version- HwPlatformx64
Microsoft ≫ Windows 10 1803 Version- HwPlatformx86
Microsoft ≫ Windows 10 1809 Version- HwPlatformarm64
Microsoft ≫ Windows 10 1809 Version- HwPlatformx64
Microsoft ≫ Windows 10 1809 Version- HwPlatformx86
Microsoft ≫ Windows 10 1903 Version- HwPlatformarm64
Microsoft ≫ Windows 10 1903 Version- HwPlatformx64
Microsoft ≫ Windows 10 1903 Version- HwPlatformx86
Microsoft ≫ Windows Server 1709 Version- HwPlatformx64
Microsoft ≫ Windows Server 1803 Version- HwPlatformx64
Microsoft ≫ Windows Server 1903 Version- HwPlatformx64

15.03.2022: CISA Known Exploited Vulnerabilities (KEV) Catalog

Microsoft Windows AppX Deployment Service (AppXSVC) Privilege Escalation Vulnerability

Vulnerability

A privilege escalation vulnerability exists when Windows AppXSVC improperly handles hard links. An attacker who successfully exploited this vulnerability could run processes in an elevated context.

Description

Apply updates per vendor instructions.

Required actions
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 13.67% 0.94
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvd@nist.gov 7.2 3.9 10
AV:L/AC:L/Au:N/C:C/I:C/A:C
134c704f-9b21-4f2e-91b3-4a467353bcc0 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
secure@microsoft.com 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-59 Improper Link Resolution Before File Access ('Link Following')

The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.