#!/bin/bash
LSDIR='/usr/local/lsws'
OWASP_DIR="${LSDIR}/conf/owasp"
RULE_FILE='modsec_includes.conf'
LS_HTTPD_CONF="${LSDIR}/conf/httpd_config.xml"
OLS_HTTPD_CONF="${LSDIR}/conf/httpd_config.conf"
EPACE=' '
OWASP_V='3.3.4'
echow(){
FLAG=${1}
shift
echo -e "\033[1m${EPACE}${FLAG}\033[0m${@}"
}
help_message(){
echo -e "\033[1mOPTIONS\033[0m"
echow '-E, --enable'
echo "${EPACE}${EPACE}Will Enable mod_secure module with latest OWASP version of rules"
echow '-D, --disable'
echo "${EPACE}${EPACE}Will Disable mod_secure module with latest OWASP version of rules"
echow '-H, --help'
echo "${EPACE}${EPACE}Display help and exit."
exit 0
}
check_lsv(){
if [ -f ${LSDIR}/bin/openlitespeed ]; then
LSV='openlitespeed'
elif [ -f ${LSDIR}/bin/litespeed ]; then
LSV='lsws'
else
echo 'Version not exist, abort!'
exit 1
fi
}
check_input(){
if [ -z "${1}" ]; then
help_message
exit 1
fi
}
mk_owasp_dir(){
if [ -d ${OWASP_DIR} ] ; then
rm -rf ${OWASP_DIR}
fi
mkdir -p ${OWASP_DIR}
if [ ${?} -ne 0 ] ; then
echo "Unable to create directory: ${OWASP_DIR}, exit!"
exit 1
fi
}
fst_match_line(){
FIRST_LINE_NUM=$(grep -n -m 1 "${1}" ${2} | awk -F ':' '{print $1}')
}
fst_match_after(){
FIRST_NUM_AFTER=$(tail -n +${1} ${2} | grep -n -m 1 ${3} | awk -F ':' '{print $1}')
}
lst_match_line(){
fst_match_after ${1} ${2} ${3}
LAST_LINE_NUM=$((${FIRST_LINE_NUM}+${FIRST_NUM_AFTER}-1))
}
enable_ols_modsec(){
grep 'module mod_security {' ${OLS_HTTPD_CONF} >/dev/null 2>&1
if [ ${?} -eq 0 ] ; then
echo "Already configured for modsecurity."
else
echo 'Enable modsecurity'
sed -i "s=module cache=module mod_security {\nmodsecurity on\
\nmodsecurity_rules \`\nSecRuleEngine On\n\`\nmodsecurity_rules_file \
${OWASP_DIR}/${RULE_FILE}\n ls_enabled 1\n}\
\n\nmodule cache=" ${OLS_HTTPD_CONF}
fi
}
enable_ls_modsec(){
grep '<enableCensorship>1</enableCensorship>' ${LS_HTTPD_CONF} >/dev/null 2>&1
if [ ${?} -eq 0 ] ; then
echo "LSWS already configured for modsecurity"
else
echo 'Enable modsecurity'
sed -i \
"s=<enableCensorship>0</enableCensorship>=<enableCensorship>1</enableCensorship>=" ${LS_HTTPD_CONF}
sed -i \
"s=</censorshipControl>=</censorshipControl>\n\
<censorshipRuleSet>\n\
<name>ModSec</name>\n\
<enabled>1</enabled>\n\
<ruleSet>include ${OWASP_DIR}/modsec_includes.conf</ruleSet>\n\
</censorshipRuleSet>=" ${LS_HTTPD_CONF}
fi
}
enable_modsec(){
if [ "${LSV}" = 'lsws' ]; then
enable_ls_modsec
elif [ "${LSV}" = 'openlitespeed' ]; then
enable_ols_modsec
fi
}
disable_ols_modesec(){
grep 'module mod_security {' ${OLS_HTTPD_CONF} >/dev/null 2>&1
if [ ${?} -eq 0 ] ; then
echo 'Disable modsecurity'
fst_match_line 'module mod_security' ${OLS_HTTPD_CONF}
lst_match_line ${FIRST_LINE_NUM} ${OLS_HTTPD_CONF} '}'
sed -i "${FIRST_LINE_NUM},${LAST_LINE_NUM}d" ${OLS_HTTPD_CONF}
else
echo 'Already disabled for modsecurity'
fi
}
disable_ls_modesec(){
grep '<enableCensorship>0</enableCensorship>' ${LS_HTTPD_CONF}
if [ ${?} -eq 0 ] ; then
echo 'Already disabled for modsecurity'
else
echo 'Disable modsecurity'
sed -i \
"s=<enableCensorship>1</enableCensorship>=<enableCensorship>0</enableCensorship>=" ${LS_HTTPD_CONF}
fst_match_line 'censorshipRuleSet' ${LS_HTTPD_CONF}
lst_match_line ${FIRST_LINE_NUM} ${LS_HTTPD_CONF} '/censorshipRuleSet'
sed -i "${FIRST_LINE_NUM},${LAST_LINE_NUM}d" ${LS_HTTPD_CONF}
fi
}
disable_modsec(){
check_lsv
if [ "${LSV}" = 'lsws' ]; then
disable_ls_modesec
elif [ "${LSV}" = 'openlitespeed' ]; then
disable_ols_modesec
fi
}
install_unzip(){
if [ ! -f /usr/bin/unzip ]; then
echo 'Install Unzip'
apt update >/dev/null 2>&1
apt-get install unzip -y >/dev/null 2>&1
fi
}
install_owasp(){
cd ${OWASP_DIR}
echo 'Download OWASP rules'
wget -q https://github.com/coreruleset/coreruleset/archive/refs/tags/v${OWASP_V}.zip
unzip -qq v${OWASP_V}.zip
rm -f v${OWASP_V}.zip
mv coreruleset-* owasp-modsecurity-crs
}
configure_owasp(){
echo 'Config OWASP rules.'
cd ${OWASP_DIR}
echo "include modsecurity.conf
include owasp-modsecurity-crs/crs-setup.conf
include owasp-modsecurity-crs/rules/REQUEST-900-EXCLUSION-RULES-BEFORE-CRS.conf
include owasp-modsecurity-crs/rules/REQUEST-901-INITIALIZATION.conf
include owasp-modsecurity-crs/rules/REQUEST-903.9001-DRUPAL-EXCLUSION-RULES.conf
include owasp-modsecurity-crs/rules/REQUEST-903.9002-WORDPRESS-EXCLUSION-RULES.conf
include owasp-modsecurity-crs/rules/REQUEST-903.9003-NEXTCLOUD-EXCLUSION-RULES.conf
include owasp-modsecurity-crs/rules/REQUEST-903.9004-DOKUWIKI-EXCLUSION-RULES.conf
include owasp-modsecurity-crs/rules/REQUEST-903.9005-CPANEL-EXCLUSION-RULES.conf
include owasp-modsecurity-crs/rules/REQUEST-903.9006-XENFORO-EXCLUSION-RULES.conf
include owasp-modsecurity-crs/rules/REQUEST-905-COMMON-EXCEPTIONS.conf
include owasp-modsecurity-crs/rules/REQUEST-910-IP-REPUTATION.conf
include owasp-modsecurity-crs/rules/REQUEST-911-METHOD-ENFORCEMENT.conf
include owasp-modsecurity-crs/rules/REQUEST-912-DOS-PROTECTION.conf
include owasp-modsecurity-crs/rules/REQUEST-913-SCANNER-DETECTION.conf
include owasp-modsecurity-crs/rules/REQUEST-920-PROTOCOL-ENFORCEMENT.conf
include owasp-modsecurity-crs/rules/REQUEST-921-PROTOCOL-ATTACK.conf
include owasp-modsecurity-crs/rules/REQUEST-930-APPLICATION-ATTACK-LFI.conf
include owasp-modsecurity-crs/rules/REQUEST-931-APPLICATION-ATTACK-RFI.conf
include owasp-modsecurity-crs/rules/REQUEST-932-APPLICATION-ATTACK-RCE.conf
include owasp-modsecurity-crs/rules/REQUEST-933-APPLICATION-ATTACK-PHP.conf
include owasp-modsecurity-crs/rules/REQUEST-934-APPLICATION-ATTACK-NODEJS.conf
include owasp-modsecurity-crs/rules/REQUEST-941-APPLICATION-ATTACK-XSS.conf
include owasp-modsecurity-crs/rules/REQUEST-942-APPLICATION-ATTACK-SQLI.conf
include owasp-modsecurity-crs/rules/REQUEST-943-APPLICATION-ATTACK-SESSION-FIXATION.conf
include owasp-modsecurity-crs/rules/REQUEST-944-APPLICATION-ATTACK-JAVA.conf
include owasp-modsecurity-crs/rules/REQUEST-949-BLOCKING-EVALUATION.conf
include owasp-modsecurity-crs/rules/RESPONSE-950-DATA-LEAKAGES.conf
include owasp-modsecurity-crs/rules/RESPONSE-951-DATA-LEAKAGES-SQL.conf
include owasp-modsecurity-crs/rules/RESPONSE-952-DATA-LEAKAGES-JAVA.conf
include owasp-modsecurity-crs/rules/RESPONSE-953-DATA-LEAKAGES-PHP.conf
include owasp-modsecurity-crs/rules/RESPONSE-954-DATA-LEAKAGES-IIS.conf
include owasp-modsecurity-crs/rules/RESPONSE-959-BLOCKING-EVALUATION.conf
include owasp-modsecurity-crs/rules/RESPONSE-980-CORRELATION.conf
include owasp-modsecurity-crs/rules/RESPONSE-999-EXCLUSION-RULES-AFTER-CRS.conf">modsec_includes.conf
echo "SecRuleEngine On">modsecurity.conf
cd ${OWASP_DIR}/owasp-modsecurity-crs
if [ -f crs-setup.conf.example ]; then
mv crs-setup.conf.example crs-setup.conf
fi
cd ${OWASP_DIR}/owasp-modsecurity-crs/rules
if [ -f REQUEST-900-EXCLUSION-RULES-BEFORE-CRS.conf.example ]; then
mv REQUEST-900-EXCLUSION-RULES-BEFORE-CRS.conf.example REQUEST-900-EXCLUSION-RULES-BEFORE-CRS.conf
fi
if [ -f RESPONSE-999-EXCLUSION-RULES-AFTER-CRS.conf.example ]; then
mv RESPONSE-999-EXCLUSION-RULES-AFTER-CRS.conf.example RESPONSE-999-EXCLUSION-RULES-AFTER-CRS.conf
fi
}
main_owasp(){
mk_owasp_dir
install_unzip
install_owasp
configure_owasp
check_lsv
enable_modsec
}
check_input ${1}
while [ ! -z "${1}" ]; do
case ${1} in
-[hH] | -help | --help)
help_message
;;
-[eE] | -enable | --enable)
main_owasp
;;
-[dD] | -disable | --disable)
disable_modsec
;;
*)
help_message
;;
esac
shift
done