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RHEL-10-400365 RHEL 10 must prevent code from being executed on file systems that contain user home directories.

DISA STIG library V1R3
All changes in this version
first version loaded CAT II

Maps to AC-3 via CCI-000213

Title

RHEL 10 must prevent code from being executed on file systems that contain user home directories.

Control

Verify RHEL 10 is configured so that "/home" is mounted with the "noexec" option with the following command: Note: If a separate file system has not been created for the user home directories (user home directories are mounted under "/"), this is automatically a finding, as the "noexec" option cannot be used on the "/" system. $ mount | grep /home /dev/mapper/luks-ca2261ed-7b00-4b7b-84cd-8cd6d8fa4b28 on /home type xfs (rw,nodev,nosuid,noexec,seclabel) If the "/home" file system is mounted without the "noexec" option, this is a finding.

Discussion

The "noexec" mount option causes the system to not execute binary files. This option must be used for mounting any file system not containing approved binary files, as they may be incompatible. Executing files from untrusted file systems increases the opportunity for nonprivileged users to attain unauthorized administrative access.

Related controls

CCI-000213

Fix

Configure RHEL 10 to prevent code from being executed on file systems that contain user home directories. Modify "/etc/fstab" to use the "noexec" option on the "/home" directory.