The Unitrends system is not vulnerable to attacks from the BEAST vulnerability.
The attack uses web browser extensions to exploit a weakness in SSLv3/TLSv1.0 cipher-block chaining (CBC), allowing a man-in-the-middle attacker to recover certain session information, such as cookie data, from what should be a secure connection.
Unitrends assessment: No Risk
The Unitrends security updates disable TLSv1.0 and SSLv3. For the 3 attack methods: No Red Hat or CentOS version is vulnerable to the WebSockets method, the Unitrends software does not include Java applets, and Silverlight is not supported.