mirror of
https://github.com/ovh/debian-cis.git
synced 2024-11-22 13:37:02 +01:00
c17d04ecc2
I added shellcheck prefixes to fix: * SC1091 (following sourced files) * SC2034 (unused variables)
90 lines
2.6 KiB
Bash
Executable File
90 lines
2.6 KiB
Bash
Executable File
#!/bin/bash
|
|
|
|
# run-shellcheck
|
|
#
|
|
# CIS Debian 7/8 Hardening
|
|
#
|
|
|
|
#
|
|
# Restrict which user's variables are accepted by ssh daemon
|
|
#
|
|
|
|
set -e # One error, it's over
|
|
set -u # One variable unset, it's over
|
|
|
|
# shellcheck disable=2034
|
|
HARDENING_LEVEL=2
|
|
# shellcheck disable=2034
|
|
DESCRIPTION="Restrict which user's variables are accepted by ssh daemon"
|
|
|
|
PACKAGE='openssh-server'
|
|
PATTERN='^\s*AcceptEnv\s+LANG LC_\*'
|
|
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"
|
|
does_pattern_exist_in_file_nocase $FILE "$PATTERN"
|
|
if [ "$FNRET" = 0 ]; then
|
|
ok "$PATTERN is present in $FILE"
|
|
else
|
|
crit "$PATTERN is not present in $FILE"
|
|
fi
|
|
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
|
|
does_pattern_exist_in_file_nocase $FILE "$PATTERN"
|
|
if [ "$FNRET" = 0 ]; then
|
|
ok "$PATTERN is present in $FILE"
|
|
else
|
|
warn "$PATTERN is not present in $FILE, adding it"
|
|
does_pattern_exist_in_file_nocase $FILE "^$PATTERN"
|
|
PATTERN=$( sed 's/\^//' <<< "$PATTERN" | sed -r 's/\\s\*//' | sed -r 's/\\s\+/ /g' | sed 's/\\//g')
|
|
if [ "$FNRET" != 0 ]; then
|
|
add_end_of_file $FILE "$PATTERN"
|
|
else
|
|
info "Parameter $SSH_PARAM is present but with the wrong value -- Fixing"
|
|
replace_in_file $FILE "^$SSH_PARAM[[:space:]]*.*" "$PATTERN"
|
|
fi
|
|
/etc/init.d/ssh reload > /dev/null 2>&1
|
|
fi
|
|
}
|
|
|
|
# This function will check config parameters required
|
|
check_config() {
|
|
:
|
|
}
|
|
|
|
# Source Root Dir Parameter
|
|
if [ -r /etc/default/cis-hardening ]; then
|
|
# shellcheck source=../../debian/default
|
|
. /etc/default/cis-hardening
|
|
fi
|
|
if [ -z "$CIS_ROOT_DIR" ]; then
|
|
echo "There is no /etc/default/cis-hardening file nor cis-hardening directory in current environment."
|
|
echo "Cannot source CIS_ROOT_DIR variable, aborting."
|
|
exit 128
|
|
fi
|
|
|
|
# Main function, will call the proper functions given the configuration (audit, enabled, disabled)
|
|
if [ -r $CIS_ROOT_DIR/lib/main.sh ]; then
|
|
# shellcheck source=../../lib/main.sh
|
|
. $CIS_ROOT_DIR/lib/main.sh
|
|
else
|
|
echo "Cannot find main.sh, have you correctly defined your root directory? Current value is $CIS_ROOT_DIR in /etc/default/cis-hardening"
|
|
exit 128
|
|
fi
|