CVE-2020-0762: Windows Defender Security Center Elevation of Privilege Vulnerability

Overview

Severity

High (CVSS 7.8)

CVSS Vector

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C

Category

Elevation of Privilege

Exploit Status

Not Exploited

Exploitation Likelihood

Less Likely

Patch Tuesday

2020-Mar

Released

2020-03-10

Last Updated

2020-07-14

EPSS Score

0.50% (percentile: 66.1%)

Description

An elevation of privilege vulnerability exists when Windows Defender Security Center handles certain objects in memory. To exploit the vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted command that could exploit the vulnerability to elevate privileges. The update addresses the vulnerability by correcting how Windows Defender Security Center handles certain objects in memory.

Affected Products (21)

Windows

• Windows Server, version 1903 (Server Core installation)
• Windows 10 Version 2004 for 32-bit Systems
• Windows 10 Version 2004 for ARM64-based Systems
• Windows 10 Version 2004 for x64-based Systems
• Windows Server, version 2004 (Server Core installation)
• Windows 10 Version 1909 for ARM64-based Systems
• Windows 10 Version 1909 for 32-bit Systems
• Windows Server, version 1909 (Server Core installation)
• Windows 10 Version 1903 for 32-bit Systems
• Windows 10 Version 1903 for x64-based Systems
• Windows 10 Version 1903 for ARM64-based Systems
• Windows 10 Version 1909 for x64-based Systems
• Windows 10 Version 1803 for x64-based Systems
• Windows Server, version 1803 (Server Core Installation)
• Windows 10 Version 1803 for 32-bit Systems
• Windows Server 2019
• Windows 10 Version 1809 for ARM64-based Systems
• Windows 10 Version 1803 for ARM64-based Systems
• Windows Server 2019 (Server Core installation)
• Windows 10 Version 1809 for x64-based Systems
• Windows 10 Version 1809 for 32-bit Systems

Security Updates (4)

• 4560960
• 4557957
• 4561621
• 4561608

Acknowledgments

WenQunWang from Codesafe Team of Legendsec at Qi'anxin Group

Revision History

• 2020-03-10: Information published.
• 2020-06-09: To comprehensively address CVE-2020-0762 and CVE-2020-0763, Microsoft has released security updates for Windows Defender Security Center engine. Microsoft recommends that customers install the updates to be fully protected from the vulnerability. Customers whose systems are configured to receive automatic updates do not need to take any further action.
• 2020-07-14: In the Security Updates table the following revisions were made: 1. Added Windows Server 2019 and Windows Server 2019 (Server Core installation) because they are affected by this vulnerability. 2. Removed all supported versions of Window 10 Version 1709 because they are not affected by this vulnerability. 3. Corrected the Article and Download links.