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AIX audio devices must be group-owned by root, sys, bin, or system.


Overview

Finding ID Version Rule ID IA Controls Severity
V-215271 AIX7-00-002079 SV-215271r508663_rule Medium
Description
Without privileged group owners, audio devices will be vulnerable to being used as eaves-dropping devices by malicious users or intruders to possibly listen to conversations containing sensitive information.
STIG Date
IBM AIX 7.x Security Technical Implementation Guide 2022-06-06

Details

Check Text ( C-16469r294264_chk )
Check the group owner of audio devices using commands:

# /usr/sbin/lsdev -C | grep -i audio
aud0 Available USB Audio Device

# ls -lL /dev/*aud0
cr--r--r-- 1 root system 16, 0 Jan 24 07:25 aud0

If the group owner of an audio device is not "root", "sys", "bin", or "system", this is a finding.
Fix Text (F-16467r294265_fix)
Change the group owner of the audio device using command:
# chgrp system