Mainframe Products must verify remote disconnection at the termination of nonlocal maintenance and diagnostic sessions.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-205581	SRG-APP-000413-MFP-000262	SV-205581r961560_rule		Medium

Description

If the remote connection is not closed and verified as closed, the session may remain open and be exploited by an attacker; this is referred to as a zombie session. Remote connections must be disconnected and verified as disconnected when nonlocal maintenance sessions have been terminated and are no longer available for use.

STIG	Date
Mainframe Product Security Requirements Guide	2024-12-05

Details

Check Text (C-5847r299970_chk)

If the Mainframe Product has no function or capability for nonlocal maintenance, this is not applicable.

Examine installation and configuration settings.

If the Mainframe Product does not verify remote disconnection at the termination of nonlocal maintenance and diagnostic sessions, this is a finding.

Fix Text (F-5847r299971_fix)

Configure the Mainframe Product to verify remote disconnection at the termination of nonlocal maintenance and diagnostic sessions.