Remote file systems must be mounted with the nosuid option.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-38654 | RHEL-06-000270 | SV-50455r2_rule | Medium |
| Description |
|---|
| NFS mounts should not present suid binaries to users. Only vendor-supplied suid executables should be installed to their default location on the local filesystem. |
| STIG | Date |
|---|---|
| Red Hat Enterprise Linux 6 Security Technical Implementation Guide | 2015-05-26 |
Details
| Check Text ( C-46214r3_chk ) |
|---|
| To verify the "nosuid" option is configured for all NFS mounts, run the following command: $ mount | grep nfs All NFS mounts should show the "nosuid" setting in parentheses, along with other mount options. If the setting does not show, this is a finding. |
| Fix Text (F-43603r1_fix) |
|---|
| Add the "nosuid" option to the fourth column of "/etc/fstab" for the line which controls mounting of any NFS mounts. |