The Photon operating system must be configured so that all cron paths are protected from unauthorized modification.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-256566	SRG-OS-000480-GPOS-00227	PHTN-30-000097	SV-256566r991589_rule	2024-12-16	1

Description
If cron files and folders are accessible to unauthorized users, malicious jobs may be created.

ℹ️ Check
At the command line, run the following command: # stat -c "%n permissions are %a and owned by %U:%G" /etc/cron.d /etc/cron.daily /etc/cron.hourly /etc/cron.monthly /etc/cron.weekly Expected result: /etc/cron.d permissions are 755 and owned by root:root /etc/cron.daily permissions are 755 and owned by root:root /etc/cron.hourly permissions are 755 and owned by root:root /etc/cron.monthly permissions are 755 and owned by root:root /etc/cron.weekly permissions are 755 and owned by root:root If the output does not match the expected result, this is a finding.

ℹ️ Check

At the command line, run the following command: # stat -c "%n permissions are %a and owned by %U:%G" /etc/cron.d /etc/cron.daily /etc/cron.hourly /etc/cron.monthly /etc/cron.weekly Expected result: /etc/cron.d permissions are 755 and owned by root:root /etc/cron.daily permissions are 755 and owned by root:root /etc/cron.hourly permissions are 755 and owned by root:root /etc/cron.monthly permissions are 755 and owned by root:root /etc/cron.weekly permissions are 755 and owned by root:root If the output does not match the expected result, this is a finding.

✔️ Fix
At the command line, run the following commands for each returned file: # chmod 755 <path> # chown root:root <path>