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1.206 ALMA-09-026200

Information

AlmaLinux OS 9 must prevent files with the setuid and setgid bit set from being executed on the /boot/efi directory.

GROUP ID: V-269311
RULE ID: SV-269311r1184099

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

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

See Also

https://workbench.cisecurity.org/benchmarks/27039

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-7(2), CCI|CCI-001764, Rule-ID|SV-269311r1184099_rule, STIG-ID|ALMA-09-026200, Vuln-ID|V-269311

Plugin: Unix

Control ID: aaa5c84d0e6b9d9d1a4f95198bb3e5f20f83f6363dda0c6a983e375f4fa37c9b