The macOS system must set Login Grace Time to 30.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-259437	APPL-14-000053	SV-259437r970703_rule		Medium

Description
If SSHD is enabled, then it must be configured to wait only 30 seconds before timing out logon attempts. Note: /etc/ssh/sshd_config will be automatically modified to its original state following any update or major upgrade to the operating system.

STIG	Date
Apple macOS 14 (Sonoma) Security Technical Implementation Guide	2024-05-30

Details

Check Text ( C-63176r940931_chk )
Verify the macOS system is configured to set Login Grace Time to 30 with the following command: /usr/sbin/sshd -G \| /usr/bin/awk '/logingracetime/{print $2}' If the result is not "30", this is a finding.

Fix Text (F-63084r940932_fix)
Configure the macOS system to set Login Grace Time to 30 with the following command: include_dir=$(/usr/bin/awk '/^Include/ {print $2}' /etc/ssh/sshd_config \| /usr/bin/tr -d '') if [[ -z $include_dir ]]; then /usr/bin/sed -i.bk "1s/./Include \/etc\/ssh\/sshd_config.d\/\*/" /etc/ssh/sshd_config fi /usr/bin/grep -qxF 'logingracetime 30' "${include_dir}01-mscp-sshd.conf" 2>/dev/null \|\| echo "logingracetime 30" >> "${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

Fix Text (F-63084r940932_fix)

Configure the macOS system to set Login Grace Time to 30 with the following command:

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 30' "${include_dir}01-mscp-sshd.conf" 2>/dev/null || echo "logingracetime 30" >> "${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