Check: GEN003300
Title
The at.deny file must not be empty if it exists. (Cat II impact)
Discussion
On some systems, if there is no at.allow file and there is an empty at.deny file, then the system assumes everyone has permission to use the at facility. This could create an insecure setting in the case of malicious users or system intruders.
Check Content
# cat /etc/cron.d/at.deny If the at.deny file exists and is empty, this is a finding.
Fix Text
Add appropriate users to the at.deny file, or remove the empty at.deny file if an at.allow file exists.
Additional Identifiers
Rule ID:
Vulnerability ID: V-985
Group Title:
Expert Comments
CCIs
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
Number | Title |
---|---|
AC-6 |
Least Privilege |