Mitigation Instructions for CVE-2020-4006

SUBJECT: VMware Workspace One Access, Access Connector, Identity Manager, and Identity Manager Connector Command Injection Vulnerability (CVE-2020-4006)

TECH STACK: VMware Workspace One Access, Access Connector, Identity Manager, Identity Manager Connector

DATE(S) ISSUED: 11/23/2020

NVD Last Modified: 07/21/2021

CRITICALITY: CRITICAL (Base Score 9.1)

OVERVIEW: 

A command injection vulnerability in the administrative configuration of VMware Workspace One Access, Access Connector, Identity Manager, and Identity Manager Connector could allow a malicious actor to execute commands with unrestricted privileges on the underlying operating system.

SOLUTION/MITIGATION:

• Apply Vendor Patch:

• • Identify affected versions of VMware Workspace One Access, Access Connector, Identity Manager, and Identity Manager Connector based on your environment.
  • Download and apply the appropriate security patches as outlined in the VMware Security Advisory
  • Follow the specific deployment instructions provided by VMware for each product.
  • Prioritize patching critical systems first.

• Change Default Password

• • Immediately change the default password for the configurator admin account on all affected systems.
  • Use a strong password that meets complexity requirements and is not used for any other accounts.
  • Consider enabling multi-factor authentication (MFA) for additional security.

• Disable Unused Functionality:

• • If you don't use specific features or services within the affected products, disable them to reduce the attack surface.

• Network Segmentation:

• • If possible, segment your network to isolate affected systems from critical resources and limit potential lateral movement in case of an exploit.

ONGOING MITIGATION:

• Vulnerability Scanning:

• • Regularly scan your environment for vulnerabilities, including newly discovered ones, and prioritize patching accordingly.
  • Consider using automated vulnerability scanning tools to streamline this process.
• Security Awareness Training:
  • Educate users on the risks of social engineering and phishing attacks that could be used to exploit this vulnerability.
  • Emphasize the importance of not clicking on suspicious links or opening attachments from unknown senders.

• Access Control:

• • Implement the principle of least privilege, granting users only the minimum access permissions they need to perform their tasks.
  • Regularly review and adjust access controls as needed.

• Monitoring & Logging:

• • Enable logging for the administrative configurator and monitor logs for suspicious activity.
  • Investigate any unusual events promptly.

• Stay Informed:

• • Subscribe to security advisories from VMware and other relevant sources to stay updated on the latest vulnerabilities and mitigation strategies.

ADDITIONAL NOTES:

• The provided mitigation steps are general recommendations. You may need to adapt them based on your specific deployment and security posture.