OL 9 must mount /dev/shm with the nosuid option.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-271652 | OL09-00-002042 | SV-271652r1094966_rule | CCI-001764 | medium |
| Description | ||||
| The "nosuid" mount option causes the system to not execute "setuid" and "setgid" files with owner privileges. This option must be used for mounting any file system not containing approved "setuid" and "setguid" files. Executing files from untrusted file systems increases the opportunity for nonprivileged users to attain unauthorized administrative access. | ||||
| STIG | Date | |||
| Oracle Linux 9 Security Technical Implementation Guide | 2025-05-08 | |||
Related Frameworks
3 paths across 3 frameworks
Related Frameworks
NIST 800-531 mapping
CM-7(2)
1.00
- DISA · 1 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
NIST 800-1711 mapping
3.4.7
1.00
- DISA · 1 · 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-001764
1.00
- DISA · 1 · disa_xccdf · related
Details
Check Text (C-271652r1094966_chk)
Verify that OL 9 is configured to mount /dev/shm with the nosuid option.
Verify "/dev/shm" is mounted with the "nosuid" option with the following command:
$ mount | grep /dev/shm
tmpfs on /dev/shm type tmpfs (rw,nodev,nosuid,noexec,seclabel)
If the /dev/shm file system is mounted without the "nosuid" option, this is a finding.
Fix Text (F-75609r1091667_fix)
Configure OL 9 to mount /dev/shm with the nosuid option.
Modify "/etc/fstab" to use the "nosuid" option on the "/dev/shm" file system.