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Microsoft XmlDocument Elevation of Privilege Vulnerability - CVE-2019-0555

oval:org.cisecurity:def:5969

An elevation of privilege vulnerability exists in the Microsoft XmlDocument class that could allow an attacker to escape from the AppContainer sandbox in the browser. An attacker who successfully exploited this vulnerability could gain elevated privileges and break out of the Edge AppContainer sandbox. The vulnerability by itself does not allow arbitrary code to run. However this vulnerability could be used in conjunction with one or more vulnerabilities (for example a remote code execution vulnerability and another elevation of privilege vulnerability) to take advantage of the elevated privileges when running. The security update addresses the vulnerability by modifying how the Microsoft XmlDocument class enforces sandboxing.

Family:
windows
Status:
ACCEPTED
Platform(s):
  • Microsoft Windows Server 2016
  • Microsoft Windows 10
  • Microsoft Windows Server 2012
  • Microsoft Windows Server 2012 R2
  • Microsoft Windows 8.1
  • Microsoft Windows Server 2019
Class:
vulnerability
Reference(s):
  • CVE-2019-0555
  • MSRC-CVE-2019-0555
  • KB4486993
  • KB4487028
  • KB4487018
  • KB4487026
  • KB4487020
  • KB4486996
  • KB4487017
  • KB4487044
Product(s):