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

os_sshd_login_grace_time_configure Set Login Grace Time to $ODV

NIST macOS Security Compliance Project Tahoe Guidance, Revision 3.0 (cf656e8)
All changes in this version
first version loaded macOS

Title

Set Login Grace Time to $ODV

Control

/usr/sbin/sshd -G | /usr/bin/awk '/logingracetime/{print $2}'

Discussion

If SSHD is enabled then it _MUST_ be configured to wait only $ODV seconds before timing out logon attempts.

NOTE: On macOS 15.2 and higher the SSH configuration can be reset to the macOS default by running /usr/libexec/reset-ssh-configuration.

Related controls

sc-10

Fix

[source,bash]
----
include_dir=$(/usr/bin/awk '/^Include/ {print $2}' /etc/ssh/sshd_config | /usr/bin/tr -d '*')

if [[ -z $include_dir ]]; then
/usr/bin/sed -i.bk "1s/.*/Include \/etc\/ssh\/sshd_config.d\/\*/" /etc/ssh/sshd_config
fi

/usr/bin/grep -qxF 'logingracetime $ODV' "${include_dir}01-mscp-sshd.conf" 2>/dev/null || echo "logingracetime $ODV" >> "${include_dir}01-mscp-sshd.conf"

for file in $(ls ${include_dir}); do
if [[ "$file" == "100-macos.conf" ]]; then
continue
fi
if [[ "$file" == "01-mscp-sshd.conf" ]]; then
break
fi
/bin/mv ${include_dir}${file} ${include_dir}20-${file}
done
----