STIGQter: STIG Summary: Red Hat Enterprise Linux 9 Security Technical Implementation Guide Version: 2 Release: 9 Benchmark Date: 01 Jul 2026:

RHEL 9 must automatically exit interactive command shell user sessions after 10 minutes of inactivity.

DISA Rule

SV-258068r1101950_rule

Vulnerability Number

V-258068

Group Title

SRG-OS-000163-GPOS-00072

Rule Version

RHEL-09-412035

Severity

CAT II

CCI(s)

• CCI-000057 - The information system initiates a session lock after the organization-defined time period of inactivity.
• 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.

Weight

10

Fix Recommendation

Configure RHEL 9 to exit interactive command shell user sessions after 10 minutes of inactivity.

Add or edit the following line in "/etc/profile.d/tmout.sh":

#!/bin/bash

declare -xr TMOUT=600

Check Contents

Verify RHEL 9 is configured to exit interactive command shell user sessions after 10 minutes of inactivity or less with the following command:

$ sudo grep -i tmout /etc/profile /etc/profile.d/*.sh

/etc/profile.d/tmout.sh:declare -xr TMOUT=600

If "TMOUT" is not set to "600" or less in a script located in the "/etc/'profile.d/ directory, is missing or is commented out, this is a finding.

Vulnerability Number

V-258068

Documentable

False

Rule Version

RHEL-09-412035

Severity Override Guidance

Verify RHEL 9 is configured to exit interactive command shell user sessions after 10 minutes of inactivity or less with the following command:

$ sudo grep -i tmout /etc/profile /etc/profile.d/*.sh

/etc/profile.d/tmout.sh:declare -xr TMOUT=600

If "TMOUT" is not set to "600" or less in a script located in the "/etc/'profile.d/ directory, is missing or is commented out, this is a finding.

Check Content Reference

M

Target Key

5551