STIG ID: ALMA-09-027080 | SRG: SRG-OS-000368-GPOS-00154 | Severity: medium | CCI: | Vulnerability Id: V-269319
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 nonprivileged users to attain unauthorized administrative access.
Modify "/etc/fstab" to use the "nosuid" option on the "/tmp" directory.
Verify "/tmp" is mounted with the "nosuid" option:
$ mount | grep ' /tmp'
tmpfs on /tmp type tmpfs (rw,nosuid,nodev,noexec,relatime,seclabel,size=2097152k,inode64)
If the "/tmp" file system is mounted without the "nosuid" option, this is a finding.