EDR: Receive error "CbOsxSensorService Trust evaluate failure: [leaf TemporalValidity]" When Upgrading Mac OS X Sensor

Products

• Carbon Black EDR (formerly Cb Response)

Issue/Introduction

• Receive error "CbOsxSensorService Trust evaluate failure: [leaf TemporalValidity]" when attempting to upgrade sensor.
• EDR Sensor retains full functionality.

Environment

• EDR Server: 6.2.5 and Higher
• EDR Sensor: 6.2.6 - 6.3.0
• Apple macOS: 10.15.x

Cause

Errors are found in the Apple System Logs, and are related to Apple's built-in Malware Removal Tool alerting on the EDR sensor.

Resolution

Upgrade to sensor 7.0.1 or higher.