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


Overview

Finding ID Version Rule ID IA Controls Severity
V-239174 PHTN-67-000103 SV-239174r675330_rule Medium
Description
If cron files and folders are accessible to unauthorized users, malicious jobs may be created.
STIG Date
VMware vSphere 6.7 Photon OS Security Technical Implementation Guide 2022-01-03

Details

Check Text ( C-42385r675328_chk )
At the command line, execute 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 Text (F-42344r675329_fix)
At the command line, execute the following commands for each returned file:

# chmod 755
# chown root:root