Detections
Analytics

1.302 RHEL-10-700125

Information

RHEL 10 must prevent files with the "setuid" and "setgid" bit set from being executed on the "/boot" directory.

GROUP ID: V-281233
RULE ID: SV-281233r1166651

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.

Solution

Configure RHEL 10 to prevent files with the "setuid" and "setgid" bit set from being executed on the "/boot" directory.

Modify "/etc/fstab" to use the "nosuid" option on the "/boot" directory.

To reload all implicit mount units and update the dependency graph so that new options will apply correctly at next remount, run the following command:

$ sudo systemctl daemon-reload

Use the following command to apply the changes immediately without a reboot:

$ sudo mount -o remount /boot

See Also

https://workbench.cisecurity.org/benchmarks/26403

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-7(2), CAT|II, CCI|CCI-001764, Rule-ID|SV-281233r1166651_rule, STIG-ID|RHEL-10-700125, Vuln-ID|V-281233

Plugin: Unix

Control ID: ea518826e3bf28db51e7b29641e16e1bb9dc293255836ba840d29889ed07de6d