Title

The Enterprise Voice, Video, and Messaging Endpoint must be configured to limit the number of concurrent sessions to an organizationally defined number. (Cat II impact)

Discussion

Enterprise Voice, Video, and Messaging Endpoint management includes the ability to control the number of user sessions and limiting the number of allowed user sessions helps limit risk related to DoS attacks. Enterprise Voice, Video, and Messaging Endpoint sessions occur peer-to-peer for media streams and client-server with session managers. For those endpoints that conference together multiple streams, the limit may be increased according to policy but a limit must still exist.

Check Content

Verify the Enterprise Voice, Video, and Messaging Endpoint is configured to limit the number of concurrent sessions to an organizationally defined number. If the Enterprise Voice, Video, and Messaging Endpoint is not configured to limit the number of concurrent sessions to the limit set by local policy, this is a finding.

Fix Text

Configure the Enterprise Voice, Video, and Messaging Endpoint to limit the number of concurrent sessions to the limit set by local policy.

Additional Identifiers

Rule ID: SV-259954r948829_rule

Vulnerability ID: V-259954

Group Title: SRG-NET-000053

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.