OL 9 must mount /tmp with the nodev option.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-271653 | OL09-00-002050 | SV-271653r1091671_rule | CCI-001764 | medium |
| Description | ||||
| The "nodev" mount option causes the system to not interpret character or block special devices. Executing character or block special devices from untrusted file systems increases the opportunity for nonprivileged users to attain unauthorized administrative access. The only legitimate location for device files is the "/dev" directory located on the root partition, with the exception of chroot jails if implemented. | ||||
| 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-271653r1091671_chk)
Verify that OL 9 is configured to mount /tmp with the nodev option.
Verify "/tmp" is mounted with the "nodev" option:
$ mount | grep /tmp
/dev/mapper/ol-tmp on /tmp type xfs (rw,nodev,nosuid,noexec,seclabel)
If the "/tmp" file system is mounted without the "nodev" option, this is a finding.
Fix Text (F-75610r1091670_fix)
Configure OL 9 to mount /tmp with the nodev option.
Modify "/etc/fstab" to use the "nodev" option on the "/tmp" directory.