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Check: GEN002960

IRIX 6.5: GEN002960 (in versions v1 r1 through v1 r0.8)

Title

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

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 /etc/cron.d/cron.allow # ls -lL /etc/cron.d/cron.deny If neither file exists, this is a finding.

Fix Text

Create /etc/cron.d/cron.allow and/or /etc/cron.d/cron.deny with appropriate content.

Additional Identifiers

Rule ID:

Vulnerability ID: V-974

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