Permissions, Privileges, and Access Controls in Microsoft products - CVE-2020-1002
Published: April 14, 2020
Vulnerability identifier: #VU26846
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-1002
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
Microsoft Forefront Endpoint Protection
Microsoft Security Essentials
Windows Defender
Microsoft Forefront Endpoint Protection
Microsoft Security Essentials
Windows Defender
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to the MpSigStub.exe for Defender allows file deletion in arbitrary locations. A local user can run a specially crafted command and delete protected files on an affected system once MpSigStub.exe ran again.
How to mitigate CVE-2020-1002
Cybersecurity Help is currently unaware of any official solution to address this vulnerability..