Ensure 'Idle timeout' is less than or equal to 10 minutes for tmsh sessions

MediumLevel 1Automatedf5-bigip

Description

To set an idle timeout for tmsh sessions PASS requires cli global-settings idle-timeout between 1 and 10 minutes. Audited against tmsh output with defaults shown: save the concatenated output of 'tmsh list auth password-policy all-properties', 'tmsh list auth source all-properties', 'tmsh list auth remote-user all-properties', 'tmsh list auth radius all-properties', 'tmsh list sys httpd all-properties', 'tmsh list sys sshd all-properties', 'tmsh list sys global-settings all-properties', 'tmsh list cli global-settings all-properties', 'tmsh list sys ntp', 'tmsh list sys snmp all-properties', 'tmsh list sys syslog' and 'tmsh list net self all-properties'. Patterns are scoped to the named top-level block.

How it is checked

Audit method: Configuration pattern

Pattern: (?m)^cli global-settings \{\n(?:[ \t]+[^\n]*\n)*?[ \t]+idle-timeout (?:[1-9]|10)[ \t]*$

How it is fixed

Fix method: Guidance or infrastructure patch

tmsh modify cli global-settings idle-timeout 10 tmsh save sys config # CIS guidance: 1.Log in to tmsh by typing the following command: tmsh 2.To configure an automatic logout idle time for tmsh sessions, use the following command syntax: modify /cli global-settings idle-timeout 10 3.Save the change by typing the following command: save /sys config

Properties

Operating systems: Any
Tags: f5-bigipmanagement
Reference: CIS F5 Networks Benchmark v1.0.0 - 4.3 Ensure 'Idle timeout' is less than or equal to 10 minutes for tmsh sessions

Check this host

Run this on a machine you are allowed to audit. The scan is read-only.

shell

tmaegis scan --target f5-bigip