SB2019081412 - Deletion of arbitrary files in Microsoft Defender
Published: August 14, 2019
Security Bulletin ID
SB2019081412
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2019-1161)
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists in the MpSigStub.exe for Defender that allows arbitrary file deletion. A local user can run a specially crafted command and delete protected files on the system.
Remediation
Install update from vendor's website.