Ax-OS must automatically terminate a Secure Shell (SSH) user session after 15 minutes.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-276003	SRG-APP-000003	AXOS-00-000015	SV-276003r1122659_rule	2025-11-25	1

Description
An attacker can take advantage of user sessions that are left open, thus bypassing the user authentication process. To thwart the vulnerability of open and unused user sessions, the application server must be configured to close the sessions when a configured condition or trigger event is met. Session termination ends all processes associated with a user's logical session except those specifically created by the user (i.e., session owner) to continue after the session is terminated. Conditions or trigger events requiring automatic session termination can include, for example, periods of user inactivity, targeted responses to certain types of incidents, and time-of-day restrictions on information system use.

Description

An attacker can take advantage of user sessions that are left open, thus bypassing the user authentication process. To thwart the vulnerability of open and unused user sessions, the application server must be configured to close the sessions when a configured condition or trigger event is met. Session termination ends all processes associated with a user's logical session except those specifically created by the user (i.e., session owner) to continue after the session is terminated. Conditions or trigger events requiring automatic session termination can include, for example, periods of user inactivity, targeted responses to certain types of incidents, and time-of-day restrictions on information system use.

ℹ️ Check
From the Axonius Toolbox (accessed via SSH) Main Actions Menu, select the following options: Compliance Actions >> Advanced Compliance Actions >> Idle session timeout If "Idle session timeout" is not enabled, this is a finding.

✔️ Fix
From the Axonius Toolbox (accessed via SSH) Main Actions Menu, select the following options: Compliance Actions >> Advanced Compliance Actions >> Idle session timeout Enable "Idle session timeout".