mirror of
https://github.com/ovh/debian-cis.git
synced 2024-11-22 21:47:02 +01:00
d2bbf754ac
new file: 99.3.1_acc_shadow_sha512.sh new file: 99.3.2_acc_sudoers_no_all.sh new file: 99.4_net_fw_default_policy_drop.sh new file: 99.5.1_ssh_auth_pubk_only.sh new file: 99.5.2.1_ssh_cry_kex.sh new file: 99.5.2.2_ssh_cry_mac.sh new file: 99.5.2.3_ssh_cry_rekey.sh new file: 99.5.3_ssh_disable_features.sh new file: 99.5.4_ssh_keys_from.sh new file: 99.5.5_ssh_strict_modes.sh new file: 99.5.6_ssh_sys_accept_env.sh new file: 99.5.7_ssh_sys_no_legacy.sh new file: 99.5.8_ssh_sys_sandbox.sh new file: 99.5.9_ssh_log_level.sh Fix descriptions in comment section for 99.* secaudit checks Remove duplicated legacy services that are already taken care of by vanilla cis Enable custom configuration of checks in config-file, no more hard coded conf Add test to disable check if debian version is too old Add excused IPs while checking "from" field of authorized_keys Escaping dots in IPs Manage Kex for different debian versions Add tests for generic checks and add apply for ssh config Apply shellcheck recommendations on audit/hardening scripts Update script to check for allowed IPs only, remove bastion related Fill `apply` func for ssh config related scripts Add and update tests scenarii Disable shellcheck test for external source 1091 As of today, the entire project is not shellcheck compliant, I prefer disabling the test that warns about not finding external source (that arent compliant). I will enable it again when the project library will be shellchecked https://github.com/koalaman/shellcheck/wiki/SC1091 Refactor password policy check with one check by feature Previous file will now only look for bad passwords in /etc/shadow I added two checks that look for the compliant configuration lines in conf files /etc/logins.defs and /etc/pam.d/common-passwords FIX: merge chained sed and fix regex FIX: update regex to capture more output FIX: fix pattern to ignore commented lines, add apply Also add tests to ensure that commented lines are not detected as valid configuration CHORE: cleanup test situation with file and users removal IMP: add case insensitive option when looking for patterns in files CHORE: removed duplicated line in test file
97 lines
3.1 KiB
Bash
Executable File
97 lines
3.1 KiB
Bash
Executable File
#!/bin/bash
|
|
# run-shellcheck
|
|
|
|
#
|
|
# OVH Security audit
|
|
#
|
|
|
|
#
|
|
# Ensure home directory and ssh sensitive files are verified (not publicly readable) before connecting.
|
|
#
|
|
|
|
set -e # One error, it's over
|
|
set -u # One variable unset, it's over
|
|
|
|
# shellcheck disable=2034
|
|
DESCRIPTION="Ensure home directory and ssh sensitive files are verified (not publicly readable) before connecting."
|
|
|
|
PACKAGE='openssh-server'
|
|
OPTIONS='StrictModes=yes'
|
|
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_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
|
|
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_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 $FILE "^$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 -- Fixing"
|
|
replace_in_file $FILE "^$SSH_PARAM[[:space:]]*.*" "$SSH_PARAM $SSH_VALUE"
|
|
fi
|
|
/etc/init.d/ssh reload > /dev/null 2>&1
|
|
fi
|
|
done
|
|
|
|
}
|
|
|
|
# This function will check config parameters required
|
|
check_config() {
|
|
:
|
|
}
|
|
|
|
# Source Root Dir Parameter
|
|
if [ -r /etc/default/cis-hardening ]; then
|
|
. /etc/default/cis-hardening
|
|
fi
|
|
if [ -z "$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 "$CIS_ROOT_DIR"/lib/main.sh ]; then
|
|
# shellcheck source=/opt/debian-cis/lib/main.sh
|
|
. "$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
|