Check: UBTU-16-010590
Canonical Ubuntu 16.04 LTS STIG:
UBTU-16-010590
(in versions v2 r3 through v1 r3)
Title
File system automounter must be disabled unless required. (Cat II impact)
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, SRG-OS-000480-GPOS-00227
Check Content
Verify the Ubuntu 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 - LSB: Automounts filesystems on demand Loaded: loaded (/etc/init.d/autofs; bad; vendor preset: enabled) Active: active (running) since Thu 2017-05-04 07:53:51 EDT; 6 days ago Docs: man:systemd-sysv-generator(8) CGroup: /system.slice/autofs.service +-24206 /usr/sbin/automount --pid-file /var/run/autofs.pid 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.
Fix Text
Configure the Ubuntu operating system to disable the ability to automount devices. Turn off the automount service with the following command: # sudo systemctl stop autofs If "autofs" is required for Network File System (NFS), it must be documented with the Information System Security Officer (ISSO).
Additional Identifiers
Rule ID: SV-214991r610931_rule
Vulnerability ID: V-214991
Group Title: SRG-OS-000114-GPOS-00059
Expert Comments
CCIs
| Number | Definition |
|---|---|
| CCI-000366 |
The organization implements the security configuration settings. |
| CCI-000778 |
The information system uniquely identifies an organization-defined list of specific and/or types of devices before establishing a local, remote, or network connection. |
| CCI-001958 |
The information system authenticates an organization-defined list of specific and/or types of devices before establishing a local, remote, or network connection. |