The Enterprise Voice, Video, and Messaging Endpoint must display an explicit logout message to users indicating the reliable termination of communications sessions.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-259984	SRG-NET-000519	SRG-NET-000519-VVEP-00101	SV-259984r948919_rule	2024-08-02	1

Description
If a user cannot explicitly end a session, the session may remain open and be exploited by an attacker; this is referred to as a zombie session. Users need to be aware of whether or not the session has been terminated. Logout messages for access, for example, can be displayed after authenticated sessions have been terminated. However, for some types of interactive sessions including, for example, remote login, information systems typically send logout messages as final messages prior to terminating sessions. This applies to network elements that have the concept of a user account and have the login function residing on the network element.

Description

If a user cannot explicitly end a session, the session may remain open and be exploited by an attacker; this is referred to as a zombie session. Users need to be aware of whether or not the session has been terminated. Logout messages for access, for example, can be displayed after authenticated sessions have been terminated. However, for some types of interactive sessions including, for example, remote login, information systems typically send logout messages as final messages prior to terminating sessions. This applies to network elements that have the concept of a user account and have the login function residing on the network element.

ℹ️ Check
Verify the Enterprise Voice, Video, and Messaging Endpoint displays an explicit logout message to users indicating the termination of communications sessions. If the Enterprise Voice, Video, and Messaging Endpoint does not display an explicit logout message to users, this is a finding.

✔️ Fix
Configure the Enterprise Voice, Video, and Messaging Endpoint to display an explicit logout message to users indicating the termination of communications sessions.