CVE-2020-1137: Windows Push Notification Service Elevation of Privilege Vulnerability
An elevation of privilege vulnerability exists in the way the Windows Push Notification Service handles objects in memory, aka 'Windows Push Notification Service Elevation of Privilege Vulnerability'.
Other sources
An elevation of privilege vulnerability exists in the way the Windows Push Notification Service handles objects in memory. 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 the Windows Push Notification Service handles objects in memory.
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Patch KB4556812 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Patch KB4556799 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Patch KB4551853 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Patch KB4556807
Event History
Frequently Asked Questions
Who can exploit this vulnerability?
An attacker must first be able to log on to an affected system and run a specially crafted application. The CVSS vector indicates local access and low privileges are required; no user interaction is required.
What could an attacker achieve after successful exploitation?
Successful exploitation could allow the attacker to run processes in an elevated context and take control of the affected system. They could install programs and view, change, or delete data.
Which systems are identified as affected?
The listed affected software includes Microsoft Windows 10, Microsoft Windows Server 2016, Microsoft Windows Server 2019, and Microsoft Windows Server.
What is the remediation?
Apply the security update that corrects how the Windows Push Notification Service handles objects in memory.