BaselineWatch
Desk
Your fleet and your work Fleetyour releases and the hardware they run onTriagewhat needs a decisionWatchlistthe products and platforms you runSaved searchesthe lists you come back to
This instance Sourceswhat is read, how often, under what termsDigestthe daily or weekly summary, and alerts
How it is drawn Appearancethe look and the colour schemeBrandingthe mark this instance wears
Owner sign-in

RHEL-09-232040 RHEL 9 permissions of cron configuration files and directories must not be modified from the operating system defaults.

DISA STIG library V2R10
All changes in this version
first version loaded CAT II

Maps to CM-6 via CCI-000366

Title

RHEL 9 permissions of cron configuration files and directories must not be modified from the operating system defaults.

Control

Run the following command to verify that the owner, group, and mode of cron configuration files and directories match the operating system defaults: $ rpm --verify cronie crontabs | awk '! ($2 == "c" && $1 ~ /^.\..\.\.\.\..\./) {print $0}' If the command returns any output, this is a finding.

Discussion

If the permissions of cron configuration files or directories are modified from the operating system defaults, it may be possible for individuals to insert unauthorized cron jobs that perform unauthorized actions, including potentially escalating privileges.

Related controls

CCI-000366

Fix

Run the following commands to restore the permissions of cron configuration files and directories to the operating system defaults: $ sudo dnf reinstall cronie crontabs $ rpm --setugids cronie crontabs $ rpm --setperms cronie crontabs