IBM z/OS must employ a session manager to manage retaining a users session lock until that user reestablishes access using established identification and authentication procedures.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-224029	TSS0-OS-000330	SV-224029r877867_rule		Medium

Description
A session lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the information system but does not want to log out because of the temporary nature of the absence. The session lock is implemented at the point where session activity can be determined. Regardless of where the session lock is determined and implemented, once invoked, the session lock will remain in place until the user re-authenticates. No other activity aside from re-authentication will unlock the system.

Description

A session lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the information system but does not want to log out because of the temporary nature of the absence. The session lock is implemented at the point where session activity can be determined. Regardless of where the session lock is determined and implemented, once invoked, the session lock will remain in place until the user re-authenticates. No other activity aside from re-authentication will unlock the system.

STIG	Date
IBM z/OS TSS Security Technical Implementation Guide	2023-03-20

Details

Check Text ( C-25702r516486_chk )
Verify the any Session Manager in use retains a user's session lock until that user reestablishes access using established identification and authentication procedures. If it does not, this is a finding.

Fix Text (F-25690r516487_fix)
Configure any Session Manager in use to retain a user's session lock until that user reestablishes access using established identification and authentication procedures.