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Check: GEN003252

AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE: GEN003252 (in versions v1 r14 through v1 r10)

Title

The at.deny file must have mode 0640 or less permissive. (Cat II impact)

Discussion

The at daemon control files restrict access to scheduled job manipulation and must be protected. Unauthorized modification of the at.deny file could result in Denial of Service to authorized at users or provide unauthorized users with the ability to run at jobs.

Check Content

Determine the mode of the at.deny file. # ls -lL /var/adm/cron/at.deny If the mode of the at.deny file is more permissive than 0640, this is a finding.

Fix Text

Change the mode of the at.deny file to 0640. # chmod 0640 /var/adm/cron/at.deny

Additional Identifiers

Rule ID: SV-38787r1_rule

Vulnerability ID: V-22392

Group Title: GEN003252

Expert Comments

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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