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Check: GEN003300

AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE: GEN003300 (in versions v1 r14 through v1 r10)

Title

The at.deny file must not be empty if it exists. (Cat II impact)

Discussion

On some systems, if there is no at.allow file and there is an empty at.deny file, then the system assumes everyone has permission to use the at facility. This could create an insecure setting in the case of malicious users or system intruders.

Check Content

# more /var/adm/cron/at.deny If the at.deny file exists and is empty, this is a finding.

Fix Text

Add appropriate users to the at.deny file, or remove the empty at.deny file if an at.allow file exists.

Additional Identifiers

Rule ID: SV-27381r1_rule

Vulnerability ID: V-985

Group Title: GEN003300

Expert Comments

Expert comments are only available to logged-in users.

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