Which version of SSL/TLS does the Sensor use? (Windows)

Products

• Carbon Black Cloud Enterprise EDR (formerly Cb Threathunter)

Issue/Introduction

Does the Carbon Black Cloud Sensor and Carbon Black Cloud Console use Secure Sockets Layer (SSL) 3.0, Transport Layer Security (TLS) 1.0, TLS 1.1, TLS 1.2, or TLS 1.3 to secure or encrypt communication?

Environment

• Carbon Black Cloud Console: All Versions
• Carbon Black Cloud Sensor: All Versions
• Microsoft Windows: All Supported Versions

Resolution

On Windows, the Carbon Black Cloud Sensor makes use of schannel, and therefore uses the protocol configured in the Operating System (OS). As the Sensor communicates with the cloud, the Console negotiates the most secure connection possible given the available configurations on the endpoint and the backend.

Additional Information

• For additional Sensor TLS information please check here.
• Some older ciphers are still made available because of the wide range of systems customers utilize, some of which do not have the ability to use newer ciphers.
• The backend will use the secure mutually agreed on cipher, so by keeping the environment up to date old ciphers can be avoided.