RHEL 9 must automatically exit interactive command shell user sessions after 10 minutes of inactivity.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-258068 | RHEL-09-412035 | SV-258068r1101950_rule | CCI-000057 | medium |
| 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 | ||||
| STIG | Date | |||
| Red Hat Enterprise Linux 9 Security Technical Implementation Guide | 2025-05-14 | |||
Related Frameworks
3 paths across 3 frameworks
Related Frameworks
NIST 800-531 mapping
AC-11
1.00
- DISA · 2 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
NIST 800-1711 mapping
3.1.10
1.00
- DISA · 2 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
- NIST · Rev 2 (Feb 2020, errata Jan 2021) · nist_800_171_app_d · equivalent
CCI1 mapping
CCI-000057
1.00
- DISA · 2 · disa_xccdf · related
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