CVE-2019-1321HighCVSS 5.8

Microsoft Windows CloudStore Elevation of Privilege Vulnerability

Published
October 8, 2019
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2019-1321 →

📋 Description

An elevation of privilege vulnerability exists when Windows CloudStore improperly handles file Discretionary Access Control List (DACL). An attacker who successfully exploited this vulnerability could overwrite a targeted file leading to an elevated status. 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 CloudStore handles DACLs.

🎯 Affected products18

  • Windows 10 Version 1703 for 32-bit Systems
  • Windows 10 Version 1703 for x64-based Systems
  • Windows 10 Version 1709 for 32-bit Systems
  • Windows 10 Version 1709 for ARM64-based Systems
  • Windows 10 Version 1709 for x64-based Systems
  • Windows 10 Version 1803 for 32-bit Systems
  • Windows 10 Version 1803 for ARM64-based Systems
  • Windows 10 Version 1803 for x64-based Systems
  • Windows 10 Version 1809 for 32-bit Systems
  • Windows 10 Version 1809 for ARM64-based Systems
  • Windows 10 Version 1809 for x64-based Systems
  • Windows 10 Version 1903 for 32-bit Systems
  • Windows 10 Version 1903 for ARM64-based Systems
  • Windows 10 Version 1903 for x64-based Systems
  • Windows Server 2019
  • Windows Server 2019 (Server Core installation)
  • Windows Server, version 1803 (Server Core Installation)
  • Windows Server, version 1903 (Server Core installation)

✅ Remediation

KB4520010 (Security Update) KB4520008 (Security Update) KB4519338 (Security Update) KB4520004 (Security Update) KB4517389 (Security Update)

🔗 References (10)