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

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-258068RHEL-09-412035SV-258068r1101950_ruleCCI-000057medium
Description
Terminating an idle interactive command shell user session within a short time period reduces the window of opportunity for unauthorized personnel to take control of it when left unattended in a virtual terminal or physical console. Satisfies: SRG-OS-000163-GPOS-00072, SRG-OS-000029-GPOS-00010
STIGDate
Red Hat Enterprise Linux 9 Security Technical Implementation Guide2026-02-05

Related Frameworks

1 mapping across 4 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (1) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

IAC-24Session Lock
0.50
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (18) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AC-11Device Lock
1.00
AC-11(1)Pattern-hiding Displays
1.00
AC-12Session Termination
1.00
AC-12(2)Termination Message
1.00
AU-10Non-repudiation
1.00
CM-7Least Functionality
1.00
IA-11Re-authentication
1.00
IA-2Identification and Authentication (Organizational Users)
1.00
IA-2(1)Multi-factor Authentication to Privileged Accounts
1.00
IA-2(12)Acceptance of PIV Credentials
1.00

+8 more (top 10 by confidence shown)

NIST 800-1710 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (1) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

3.1.10
1.00
CCI1 mapping
CCI-000057
1.00

Details

Check Text (C-258068r1101950_chk)

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.

Fix Text (F-61733r1014871_fix)

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