Title

The Unified Communications Endpoint must be configured to produce session (call detail) records containing the outcome of the connection. (Cat II impact)

Discussion

Session records are commonly produced by session management and border elements. Many Unified Communications Endpoints are not capable of providing session records and instead rely on session management and border elements. Unified Communications Endpoints capable of producing session records provide supplemental confirmation of monitored events. Unified Communications Endpoints that communicate beyond these defined environments must generate session records. Session record content that may be necessary to satisfy this requirement includes, for example, type of connection, connection origination, time stamps, outcome, user identities, and user identifiers. Additionally, an adversary must not be able to modify or delete session records. Detailed records are typically produced by the session manager but can be augmented by nontelephone endpoint records.

Check Content

Verify the Unified Communications Endpoint produces session records containing the outcome of the connection. Outcomes of the connection would include call completed, conference completed, destination busy, network busy, etc. If the Unified Communications Endpoint does not produce session records containing the outcome of the connection, this is a finding.

Fix Text

Configure the Unified Communications Endpoint to produce session records containing the outcome of the connection.

Additional Identifiers

Rule ID: SRG-NET-000078-VVEP-00025_rule

Vulnerability ID: SRG-NET-000078-VVEP-00025

Group Title: SRG-NET-000078-VVEP-00025

Expert Comments

CCIs tied to check.

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