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Check: GEN003490

AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE: GEN003490 (in versions v1 r14 through v1 r10)

Title

The at.deny file must be group-owned by system, bin, sys, or cron. (Cat II impact)

Discussion

If the group owner of the at.deny file is not set to system, bin, sys, or cron, unauthorized users could be allowed to view or edit sensitive information contained within the file. Unauthorized modification could result in Denial of Service to authorized at users or provide unauthorized users with the ability to run at jobs.

Check Content

Determine the group owner of the at.deny file. Procedure: # ls -lL /var/adm/cron/at.deny If the group owner is not bin, sys, system, or cron, this is a finding.

Fix Text

Change the group owner of the at.deny file to bin, sys, system, or cron. Procedure: # chgrp cron /var/adm/cron/at.deny

Additional Identifiers

Rule ID: SV-39356r1_rule

Vulnerability ID: V-22398

Group Title: GEN003490

Expert Comments

Expert comments are only available to logged-in users.

CCIs

CCIs tied to check.

Number	Definition
CCI-000225	Employ the principle of least privilege, allowing only authorized accesses for users (or processes acting on behalf of users) which are necessary to accomplish assigned organizational tasks.

Controls

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

Number	Title
AC-6	Least Privilege