Check: GEN003080

AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE: GEN003080 (in versions v1 r14 through v1 r10)

Crontab files must have mode 0600 or less permissive. (Cat II impact)

To protect the integrity of scheduled system jobs and prevent malicious modification to these jobs, crontab files must be secured.

Check the mode of the crontab files. # ls -lL /var/spool/cron/crontabs/ If any crontab file has a mode more permissive than 0600, this is a finding.

Change the mode of the crontab files. # chmod 0600 /var/spool/cron/crontabs/*

Rule ID: SV-27340r1_rule

Vulnerability ID: V-978

Group Title: GEN003080

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

Number	Title
AC-6	Least Privilege