CVE-2021-23882 : Vulnerability Insights and Analysis
Learn about CVE-2021-23882, an Improper Access Control vulnerability in McAfee Endpoint Security for Windows, allowing local administrators to disrupt file installations.
A detailed overview of the Improper Access Control vulnerability found in McAfee Endpoint Security (ENS) for Windows.
Understanding CVE-2021-23882
This CVE describes an Improper Access Control vulnerability in McAfee Endpoint Security (ENS) for Windows, allowing local administrators to interfere with the installation process of ENS files.
What is CVE-2021-23882?
The vulnerability in McAfee ENS for Windows prior to version 10.7.0 February 2021 Update enables local administrators to disrupt ENS file installation by strategically placing crafted files.
The Impact of CVE-2021-23882
With a CVSS base score of 8.2, this high-severity vulnerability can result in confidentiality, integrity, and availability impacts, affecting systems where ENS is being installed or upgraded.
Technical Details of CVE-2021-23882
Details on the vulnerability, affected systems, and exploitation mechanisms.
Vulnerability Description
The flaw in ENS allows local administrators to halt ENS file installation by manipulating files placed in the installation path, impacting Clean installations of ENS due to Access Control rules.
Affected Systems and Versions
McAfee Endpoint Security (ENS) for Windows versions below 10.7.0 February 2021 Update are affected by this vulnerability, with version 10.7.x being susceptible.
Exploitation Mechanism
Local administrators can exploit this vulnerability during the installation of ENS by strategically positioning crafted files to prevent specific ENS files from being installed.
Mitigation and Prevention
Guidelines to address and prevent the CVE-2021-23882 vulnerability in McAfee ENS for Windows.
Immediate Steps to Take
Ensure timely installation of the latest ENS version (10.7.0 February 2021 Update) to mitigate the vulnerability and restrict local administrator access.
Long-Term Security Practices
Regularly monitor and update McAfee ENS to ensure protection against emerging threats and vulnerabilities.
Patching and Updates
Stay informed about security advisories from McAfee LLC and apply recommended patches and updates promptly.