STIGhubSTIGhub
STIGsRMF ControlsCompare

STIGhub

A free tool to search and browse the entire DISA STIG library. Saves up to 75% in security compliance research time.

Navigation

  • Browse STIGs
  • Search
  • RMF Controls
  • Compare Versions

Resources

  • About
  • Release Notes
  • VPAT
  • DISA STIG Library
STIGs updated 2 hours ago
Powered by Pylon
© 2026 Beacon Cloud Solutions, Inc. All rights reserved.
← Back to IBM z/OS ACF2 Security Technical Implementation Guide

V-223576

CAT II (Medium)

IBM z/OS must employ a session manager to manage session lock after a 15-minute period of inactivity.

Rule ID

SV-223576r958402_rule

STIG

IBM z/OS ACF2 Security Technical Implementation Guide

Version

V9R8

CCIs

CCI-000057

Discussion

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 must remain in place until the user reauthenticates. No other activity aside from reauthentication must unlock the system.

Check Content

Ask the system administrator for the configuration parameters for the session manager in use.

If there is no session manager in use, this is a finding.

If the session manager is not configured to initiate session lock after a 15-minute period of inactivity this is a finding.

Fix Text

Configure the session manager to initiate a session lock after a 15-minute period of inactivity.