Time-of-check Time-of-use (TOCTOU) Race Condition in Antivirus for Mac - CVE-2020-27014
Published: October 27, 2020
Vulnerability identifier: #VU47936
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2020-27014
CWE-ID: CWE-367
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Trend Micro
Affected software:
Antivirus for Mac
Antivirus for Mac
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to the lack of proper locking when performing operations on an object within the KERedirect kext. A local administrator can escalate privileges and execute arbitrary code in the context of the kernel.
How to mitigate CVE-2020-27014
Install updates from vendor's website.