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Check: GEN003250

AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE: GEN003250 (in versions v1 r14 through v1 r10)

Title

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

Discussion

If the group of the cron.allow is not set to system, bin, sys, or cron, the possibility exists for an unauthorized user to view or edit the list of users permitted to use cron. Unauthorized modification of this file could cause Denial of Service to authorized cron users or provide unauthorized users with the ability to run cron jobs.

Check Content

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

Fix Text

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

Additional Identifiers

Rule ID: SV-39346r1_rule

Vulnerability ID: V-22391

Group Title: GEN003250

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