The firewall protecting the BlackBerry Enterprise Mobility Server (BEMS) must be configured to restrict all network traffic to and from all addresses with the exception of ports, protocols, and IP address ranges required to support BEMS functions.

From BlackBerry Enterprise Mobility Server 2.x Security Technical Implementation Guide

Part of SRG-APP-000142-AS-000014

Associated with: CCI-000382

SV-93717r1_rule The firewall protecting the BlackBerry Enterprise Mobility Server (BEMS) must be configured to restrict all network traffic to and from all addresses with the exception of ports, protocols, and IP address ranges required to support BEMS functions.

Vulnerability discussion

Most information systems are capable of providing a wide variety of functions and services. Some of the functions and services, provided by default, may not be necessary to support essential organizational operations. Since BEMS is a critical component of the mobility architecture and must be configured to enable only those ports, protocols, and services (PPS) necessary to support functionality, all others must be expressly disabled or removed. A firewall installed on BEMS provides a protection mechanism to ensure unwanted service requests do not reach BEMS and outbound traffic is limited to only BEMS functionality.

Check content

Ask the BEMS administrator for a list of ports, protocols, and IP address ranges necessary to support BEMS functionality. A list can usually be found in the STIG Supplemental document or MDM product documentation. Compare the list against the configuration of the firewall and identify discrepancies. If the host-based firewall is not configured to support only those ports, protocols, and IP address ranges necessary for operation, this is a finding.

Fix text

Configure the firewall on BEMS to only permit ports, protocols, and IP address ranges necessary for operation.

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