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Check: GEN002330

AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE: GEN002330 (in versions v1 r14 through v1 r10)

Title

Audio devices must not have extended ACLs. (Cat II impact)

Discussion

File system ACLs can provide access to files beyond what is allowed by the mode numbers of the files.

Check Content

Determine the audio device files for the system. Procedure: # /usr/sbin/lsdev -C | grep -i audio #aclget /dev/*aud0 Check if extended permissions are disabled. If extended permissions are not disabled, this is a finding.

Fix Text

Remove the extended ACL from the audio device file(s) and disable extended permissions. #acledit <directory>/<file>

Additional Identifiers

Rule ID: SV-38743r1_rule

Vulnerability ID: V-22367

Group Title: GEN002330

Expert Comments

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CCIs

CCIs tied to check.

Number	Definition
CCI-000225	The organization employs the concept of least privilege, allowing only authorized accesses for users (and processes acting on behalf of users) which are necessary to accomplish assigned tasks in accordance with organizational missions and business functions.

Controls

Controls tied to check. These are derived from the CCIs shown above.

Number	Title
AC-6	Least Privilege