Access to the cron utility must be controlled using the cron.allow and/or cron.deny file(s).

From AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE

Associated with IA controls: ECLP-1

Associated with: CCI-000225

SV-27318r1_rule Access to the cron utility must be controlled using the cron.allow and/or cron.deny file(s).

Vulnerability discussion

The cron facility allows users to execute recurring jobs on a regular and unattended basis. The cron.allow file designates accounts allowed to enter and execute jobs using the cron facility. If neither cron.allow nor cron.deny exists, then any account may use the cron facility. This may open the facility up for abuse by system intruders and malicious users.

Check content

Check for the existence of the cron.allow and cron.deny files. # ls -lL /var/adm/cron/cron.allow # ls -lL /var/adm/cron/cron.deny If neither file exists, this is a finding.

Fix text

Create /var/adm/cron/cron.allow and/or /var/adm/cron/cron.deny with appropriate content.

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