CVE-2020-4008 : Security Advisory and Response
Learn about CVE-2020-4008 affecting VMware Carbon Black Cloud macOS Sensor. Find out how local attackers can exploit the vulnerability to overwrite files during installation and how to mitigate the risk.
VMware Carbon Black Cloud macOS Sensor installer file overwrite issue.
Understanding CVE-2020-4008
The installer of the macOS Sensor for VMware Carbon Black Cloud (prior to 3.5.1) handles certain files in an insecure way, allowing a malicious actor with local access to overwrite files during sensor installation.
What is CVE-2020-4008?
The vulnerability in VMware Carbon Black Cloud macOS Sensor allows local attackers to overwrite specific files during installation, potentially leading to system compromise.
The Impact of CVE-2020-4008
The vulnerability could be exploited by threat actors with local access to compromise the integrity of the installation process and potentially manipulate files on the endpoint.
Technical Details of CVE-2020-4008
Vulnerability Description
The issue lies in how the macOS Sensor installer for VMware Carbon Black Cloud (prior to 3.5.1) manages files, enabling unauthorized file overwrites during installation.
Affected Systems and Versions
- Product: VMware Carbon Black Cloud macOS Sensor
- Versions Affected: VMware Carbon Black Cloud macOS Sensor (prior to 3.5.1)
Exploitation Mechanism
- Local access to the endpoint during sensor installation
- Overwriting files with output from the sensor installation
Mitigation and Prevention
Immediate Steps to Take
- Upgrade to version 3.5.1 or later of VMware Carbon Black Cloud macOS Sensor
- Restrict local access to endpoints to authorized personnel
Long-Term Security Practices
- Regularly monitor and audit file integrity on endpoints
- Implement least privilege access controls to limit unauthorized actions
Patching and Updates
- Apply security patches and updates promptly to ensure system security