SUSE operating system file systems that are used with removable media must be mounted to prevent files with the setuid and setgid bit set from being executed.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-234999	SRG-OS-000480-GPOS-00227	SLES-15-040150	SV-234999r991589_rule	2025-02-27	2

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 unprivileged users to attain unauthorized administrative access.

ℹ️ Check
Verify SUSE operating system file systems used for removable media are mounted with the "nosuid" option. Check the file systems that are mounted at boot time with the following command: > more /etc/fstab UUID=2bc871e4-e2a3-4f29-9ece-3be60c835222 /mnt/usbflash vfat noauto,owner,ro,nosuid 0 0 If a file system found in "/etc/fstab" refers to removable media and it does not have the "nosuid" option set, this is a finding.

ℹ️ Check

Verify SUSE operating system file systems used for removable media are mounted with the "nosuid" option. Check the file systems that are mounted at boot time with the following command: > more /etc/fstab UUID=2bc871e4-e2a3-4f29-9ece-3be60c835222 /mnt/usbflash vfat noauto,owner,ro,nosuid 0 0 If a file system found in "/etc/fstab" refers to removable media and it does not have the "nosuid" option set, this is a finding.

✔️ Fix
Configure the SUSE operating system "/etc/fstab" file to use the "nosuid" option on file systems that are associated with removable media.