The SUSE operating system must disable the file system automounter unless required.

STIG ID: SLES-15-010240 |  SRG: SRG-OS-000114-GPOS-00059 |  Severity: medium |  CCI:  | Vulnerability Id: V-234823

Vulnerability Discussion

Automatically mounting file systems permits easy introduction of unknown devices, thereby facilitating malicious activity.

Satisfies: SRG-OS-000114-GPOS-00059, SRG-OS-000378-GPOS-00163

Check

Configure the SUSE operating system to disable the ability to automount devices.

Turn off the automount service with the following command:

> systemctl stop autofs
> systemctl disable autofs

If "autofs" is required for Network File System (NFS), it must be documented with the ISSO.

Fix

Verify the SUSE operating system disables the ability to automount devices.

Check to see if automounter service is active with the following command:

> systemctl status autofs
autofs.service - Automounts filesystems on demand
Loaded: loaded (/usr/lib/systemd/system/autofs.service; disabled)
Active: inactive (dead)

If the "autofs" status is set to "active" and is not documented with the Information System Security Officer (ISSO) as an operational requirement, this is a finding.