STIGQter: STIG Summary: SUSE Linux Enterprise Micro (SLEM) 5 Security Technical Implementation Guide Version: 1 Release: 4 Benchmark Date: 01 Apr 2026:

SLEM 5 must be configured so that all network connections associated with SSH traffic are terminated after 10 minutes of becoming unresponsive.

DISA Rule

SV-261332r996462_rule

Vulnerability Number

V-261332

Group Title

SRG-OS-000126-GPOS-00066

Rule Version

SLEM-05-255035

Severity

CAT II

CCI(s)

CCI-001133 - Terminate the network connection associated with a communications session at the end of the session or after an organization-defined time period of inactivity.
CCI-002361 - Automatically terminate a user session after organization-defined conditions or trigger events requiring session disconnect.

Weight

Fix Recommendation

Configure the SSH server to terminate a user session automatically after the SSH client has been unresponsive for 10 minutes.

Add or modify the following line in the "/etc/ssh/sshd_config" file:

ClientAliveInterval 600

The SSH daemon must be restarted for any changes to take effect:

> systemctl restart sshd.service

Check Contents

Verify the SSH server automatically terminates a user session after the SSH client has been unresponsive for 10 minutes by using the following command:

> sudo /usr/sbin/sshd -dd 2>&1 | awk '/filename/ {print $4}' | tr -d '\r' | tr '\n' ' ' | xargs sudo grep -iH '^\s*clientaliveinterval'
/etc/ssh/sshd_config:ClientAliveInterval 600

If "ClientAliveInterval" is not set to "600" or less, is commented out, missing, or conflicting results are returned, this is a finding.

Vulnerability Number

V-261332

Documentable

False

Rule Version

SLEM-05-255035

Severity Override Guidance

Check Content Reference

Target Key

5596