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Check: GEN003270 M6

MACOSX 10.6: GEN003270 M6 (in version v1 r3)

Title

The cron.deny file must be group-owned by wheel. (Cat II impact)

Discussion

The cron daemon control files and restricts the scheduling of automated tasks and must be protected. Unauthorized modification of the cron.deny file could result in Denial of Service to authorized cron users or could provide unauthorized users with the ability to run cron jobs.

Check Content

Open a terminal session and enter the following command to verify the group ownership of the "/private/var/at/cron.deny" file. ls -lL /private/var/at/cron.deny If the "/private/var/at/cron.deny" file is not group owned by wheel, this is a finding.

Fix Text

Open a terminal session and enter the following command to set the group. chgrp wheel /private/var/at/cron.deny

Additional Identifiers

Rule ID: SV-38119r1_rule

Vulnerability ID: V-22394

Group Title:

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