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Remote file systems must be mounted with the "nosuid" option.


Overview

Finding ID Version Rule ID IA Controls Severity
RHEL-06-000270 RHEL-06-000270 RHEL-06-000270_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 2013-02-05

Details

Check Text ( C-RHEL-06-000270_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.
If the setting does not show, this is a finding.
Fix Text (F-RHEL-06-000270_fix)
Add the "nosuid" option to the fourth column of "/etc/fstab" for the line which controls mounting of any NFS mounts.