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All device files must be monitored by the system Linux Security Module.


Overview

Finding ID Version Rule ID IA Controls Severity
RHEL-06-000026 RHEL-06-000026 RHEL-06-000026_rule Low
Description
If a device file carries the SELinux type "unlabeled_t", then SELinux cannot properly restrict access to the device file.
STIG Date
Red Hat Enterprise Linux 6 Security Technical Implementation Guide 2013-02-05

Details

Check Text ( C-RHEL-06-000026_chk )
If the system is a cross-domain system, this is not applicable.

To check for unlabeled device files, run the following command:

# ls -RZ /dev | grep unlabeled_t

It should produce no output in a well-configured system.
If there is output, this is a finding.
Fix Text (F-RHEL-06-000026_fix)
Device files, which are used for communication with important system resources, should be labeled with proper SELinux types. If any device files carry the SELinux type "unlabeled_t", investigate the cause and correct the file's context.