Audio devices must be owned by root.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-1049	GEN002340	SV-27248r1_rule	ECLP-1	Medium

Description
Audio and video devices that are globally accessible have proven to be another security hazard. There is software that can activate system microphones and video devices connected to user workstations and/or X terminals. Once the microphone has been activated, it is possible to eavesdrop on otherwise private conversations without the victim being aware of it. This action effectively changes the user's microphone to a bugging device.

Description

Audio and video devices that are globally accessible have proven to be another security hazard. There is software that can activate system microphones and video devices connected to user workstations and/or X terminals. Once the microphone has been activated, it is possible to eavesdrop on otherwise private conversations without the victim being aware of it. This action effectively changes the user's microphone to a bugging device.

STIG	Date
AIX 5.3 SECURITY TECHNICAL IMPLEMENTATION GUIDE	2014-10-03

Details

Check Text ( C-28273r1_chk )
Check the owner of audio devices. Procedure: # /usr/sbin/lsdev -C \| grep -i audio # ls -lL /dev/*aud0 If the owner of any audio device file is not root, this is a finding.

Fix Text (F-1203r2_fix)
Change the owner of the audio device. # chown root