CVE-2020-0779HighCVSS 7.0

Windows Installer Elevation of Privilege Vulnerability

Published
March 10, 2020
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2020-0779 →

📋 Description

An elevation of privilege vulnerability exists in the Windows Installer when MSI packages process symbolic links. An attacker who successfully exploited this vulnerability could bypass access restrictions to add or remove files. 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 add or remove files. The security update addresses the vulnerability by modifying how reparse points are handled by the Windows Installer.

🎯 Affected products41

  • Windows 10 Version 1607 for 32-bit Systems
  • Windows 10 Version 1607 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 10 Version 1909 for 32-bit Systems
  • Windows 10 Version 1909 for ARM64-based Systems
  • Windows 10 Version 1909 for x64-based Systems
  • Windows 10 for 32-bit Systems
  • Windows 10 for x64-based Systems
  • Windows 7 for 32-bit Systems Service Pack 1
  • Windows 7 for x64-based Systems Service Pack 1
  • Windows 8.1 for 32-bit systems
  • Windows 8.1 for x64-based systems
  • Windows RT 8.1
  • Windows Server 2008 R2 for x64-based Systems Service Pack 1
  • Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
  • Windows Server 2008 for 32-bit Systems Service Pack 2
  • Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)
  • Windows Server 2008 for x64-based Systems Service Pack 2
  • Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)
  • +11 more not shown

✅ Remediation

KB4540689 (Security Update) KB4538461 (Security Update) KB4540673 (Security Update) KB4540681 (Security Update) KB4540693 (Security Update) KB4540670 (Security Update) KB4540688 (Monthly Rollup) KB4541500 (Security Only) KB4541509 (Monthly Rollup) KB4541505 (Security Only) KB4541506 (Monthly Rollup) KB4541504 (Security Only) KB4541510 (Monthly Rollup) KB4540694 (Security Only)

🔗 References (26)