Security requirements for Instant Messaging (IM) must be followed. IT Policy rule Allow Public IM Services (Service Exclusivity policy group) must be set as required.

From BlackBerry Enterprise Server (version 5.x), Part 3 Security Technical Implementation Guide

Associated with IA controls: ECSC-1

SV-21224r4_rule Security requirements for Instant Messaging (IM) must be followed. IT Policy rule Allow Public IM Services (Service Exclusivity policy group) must be set as required.

Vulnerability discussion

Non-DoD instant messaging servers can be located anywhere in the world and can expose the DoD BlackBerry system and enclave to malware and attack.

Check content

Detailed Policy Requirements: ***** For this check, set IT Policy rule "Allow Public IM Services" (Service Exclusivity policy group) to "No". Check Procedures: This is a BES IT Policy check. Recommend all checks related to BES IT policies be reviewed using the procedure in Check WIR1400-01 (V0003545). *****Verify IT Policy rule "Allow Public IM Services" (Service Exclusivity policy group) is set as required. If not set as required, this is a finding.

Fix text

Configure the IT Policy rule as specified in the "Checks" block.

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