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CVE-2019-1064: Windows Elevation of Privilege Vulnerability

High · CVSS 7.8 (CVSS 3.1)KEV known exploitedEPSS 6.9%, 94th percentilePublished Updated Assigner: microsoft

In CISA’s Known Exploited Vulnerabilities catalog: Microsoft Windows AppX Deployment Service (AppXSVC) Privilege Escalation Vulnerability.

Added , federal remediation due . Known ransomware use: Known.

Required action: Apply updates per vendor instructions.

Description

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.

Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C

Status incidents that name it

No tracked status incident names this CVE.

Affected vendors and products

Microsoft: Windows 10 Version 1607Microsoft: Windows 10 Version 1703Microsoft: Windows 10 Version 1709Microsoft: Windows 10 Version 1709 for 32-bit SystemsMicrosoft: Windows 10 Version 1803Microsoft: Windows 10 Version 1809Microsoft: Windows 10 Version 1903 for 32-bit SystemsMicrosoft: Windows 10 Version 1903 for ARM64-based SystemsMicrosoft: Windows 10 Version 1903 for x64-based SystemsMicrosoft: Windows Server 2016Microsoft: Windows Server 2016 (Server Core installation)Microsoft: Windows Server 2019Microsoft: Windows Server 2019 (Server Core installation)Microsoft: Windows Server, version 1803 (Server Core Installation)Microsoft: Windows Server, version 1903 (Server Core installation)

References

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