mirror of
https://github.com/ovh/debian-cis.git
synced 2024-11-22 21:47:02 +01:00
87 lines
2.6 KiB
Bash
Executable File
87 lines
2.6 KiB
Bash
Executable File
#!/bin/bash
|
|
|
|
#
|
|
# CIS Debian 7 Hardening
|
|
#
|
|
|
|
#
|
|
# 9.3.5 Set SSH MaxAuthTries to 4 or Less (Scored)
|
|
#
|
|
|
|
set -e # One error, it's over
|
|
set -u # One variable unset, it's over
|
|
|
|
PACKAGE='openssh-server'
|
|
OPTIONS='MaxAuthTries=4'
|
|
FILE='/etc/ssh/sshd_config'
|
|
|
|
# This function will be called if the script status is on enabled / audit mode
|
|
audit () {
|
|
is_pkg_installed $PACKAGE
|
|
if [ $FNRET != 0 ]; then
|
|
crit "$PACKAGE is not installed !"
|
|
else
|
|
ok "$PACKAGE is installed"
|
|
for SSH_OPTION in $OPTIONS; do
|
|
SSH_PARAM=$(echo $SSH_OPTION | cut -d= -f 1)
|
|
SSH_VALUE=$(echo $SSH_OPTION | cut -d= -f 2)
|
|
PATTERN="^$SSH_PARAM[[:space:]]*$SSH_VALUE"
|
|
does_pattern_exists_in_file $FILE "$PATTERN"
|
|
if [ $FNRET = 0 ]; then
|
|
ok "$PATTERN is present in $FILE"
|
|
else
|
|
crit "$PATTERN is not present in $FILE"
|
|
fi
|
|
done
|
|
fi
|
|
}
|
|
|
|
# This function will be called if the script status is on enabled mode
|
|
apply () {
|
|
is_pkg_installed $PACKAGE
|
|
if [ $FNRET = 0 ]; then
|
|
ok "$PACKAGE is installed"
|
|
else
|
|
crit "$PACKAGE is absent, installing it"
|
|
apt_install $PACKAGE
|
|
fi
|
|
for SSH_OPTION in $OPTIONS; do
|
|
SSH_PARAM=$(echo $SSH_OPTION | cut -d= -f 1)
|
|
SSH_VALUE=$(echo $SSH_OPTION | cut -d= -f 2)
|
|
PATTERN="^$SSH_PARAM[[:space:]]*$SSH_VALUE"
|
|
does_pattern_exists_in_file $FILE "$PATTERN"
|
|
if [ $FNRET = 0 ]; then
|
|
ok "$PATTERN is present in $FILE"
|
|
else
|
|
warn "$PATTERN not present in $FILE, adding it"
|
|
does_pattern_exists_in_file $FILE "^$SSH_PARAM"
|
|
if [ $FNRET != 0 ]; then
|
|
add_end_of_file $FILE "$SSH_PARAM $SSH_VALUE"
|
|
else
|
|
info "Parameter $SSH_PARAM is present but with the wrong value, correcting"
|
|
replace_in_file $FILE "^$SSH_PARAM[[:space:]]*.*" "$SSH_PARAM $SSH_VALUE"
|
|
fi
|
|
/etc/init.d/ssh reload
|
|
fi
|
|
done
|
|
}
|
|
|
|
# This function will check config parameters required
|
|
check_config() {
|
|
:
|
|
}
|
|
|
|
# Source Root Dir Parameter
|
|
if [ ! -r /etc/default/cis-hardening ]; then
|
|
echo "There is no /etc/default/cis-hardening file, cannot source CIS_ROOT_DIR variable, aborting"
|
|
exit 128
|
|
else
|
|
. /etc/default/cis-hardening
|
|
if [ -z $CIS_ROOT_DIR ]; then
|
|
echo "No CIS_ROOT_DIR variable, aborting"
|
|
fi
|
|
fi
|
|
|
|
# Main function, will call the proper functions given the configuration (audit, enabled, disabled)
|
|
[ -r $CIS_ROOT_DIR/lib/main.sh ] && . $CIS_ROOT_DIR/lib/main.sh
|