AlmaLinux OS 9 must prevent files with the setuid and setgid bit set from being executed on the /boot directory.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-269313 | ALMA-09-026420 | SV-269313r1050195_rule | CCI-001764 | medium |
| Description | ||||
| The "nosuid" mount option causes the system not to 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 | |||
| Cloud Linux AlmaLinux OS 9 Security Technical Implementation Guide | 2026-02-27 | |||
Related Frameworks
3 paths across 3 frameworks
Related Frameworks
NIST 800-531 mapping
CM-7(2)
1.00
- DISA · V1R6 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
NIST 800-1711 mapping
3.4.7
1.00
- DISA · V1R6 · 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 · V1R6 · disa_xccdf · related
Details
Check Text (C-269313r1050195_chk)
Verify the /boot directory is mounted with the "nosuid" option with the following command:
$ mount | grep '\s/boot\s'
/dev/sda2 on /boot type xfs (rw,nosuid,nodev,noexec,relatime,seclabel,attr2,inode64,logbufs=8,logbsize=32k,noquota)
If the /boot file system does not have the "nosuid" option set, this is a finding.
Fix Text (F-73245r1048316_fix)
Modify "/etc/fstab" to use the "nosuid" option on the "/boot" directory.