srg_requirement: |-
    {{{ full_name }}} must be configured so that all system device files are correctly labeled to prevent unauthorized modification.

fixtext: |-
    Restore the SELinux policy for the affected device file from the system policy database using the following command:

    $ sudo restorecon -v &lt;device_path&gt;

    Substitute "&lt;device_path&gt;" with the path to the affected device file (from the output of the previous commands). An example device file path would be "/dev/ttyUSB0". If the output of the above command does not indicate that the device was relabeled to a more specific SELinux type label, then the SELinux policy of the system must be updated with more specific policy for the device class specified. If a package was used to install support for a device class, that package could be reinstalled using the following command:

    $ sudo dnf reinstall &lt;package_name&gt;

    If a package was not used to install the SELinux policy for a given device class, then it must be generated manually and provide specific type labels.

checktext: |-
    Verify that all system device files are correctly labeled to prevent unauthorized modification.

    List all device files on the system that are incorrectly labeled with the following commands:

    Note: Device files are normally found under "/dev", but applications may place device files in other directories and may necessitate a search of the entire system.

    # find /dev -context *:device_t:* \( -type c -o -type b \) -printf "%p %Z\n"

    # find /dev -context *:unlabeled_t:* \( -type c -o -type b \) -printf "%p %Z\n"

    Note: There are device files, such as "/dev/vmci", that are used when the operating system is a host virtual machine. They will not be owned by a user on the system and require the "device_t" label to operate. These device files are not a finding.

    If there is output from either of these commands, other than already noted, this is a finding.

vuldiscussion: |-
    If an unauthorized or modified device is allowed to exist on the system, there is the possibility the system may perform unintended or unauthorized operations.
