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Check: GEN003250

SUSE Linux Enterprise Server v11 for System z STIG: GEN003250 (in versions v1 r12 through v1 r9)

Title

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

Discussion

If the group of the cron.allow is not set to root, 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

Check the group ownership of the file. Procedure: # ls -lL /etc/cron.allow If the file is not group-owned by root, bin, sys, or cron, this is a finding.

Fix Text

Change the group ownership of the file. Procedure: # chgrp root /etc/cron.allow

Additional Identifiers

Rule ID: SV-45640r1_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