From e0ac2fbeacbd0f796654a8f8fb4f1921c3ede6ed Mon Sep 17 00:00:00 2001 From: Shaun Reed Date: Sat, 7 Sep 2019 12:52:37 +0000 Subject: [PATCH] Add basic Fail2ban SSH / NGINX jails --- configs/fail2ban/README.md | 116 ++++ configs/fail2ban/jail.local | 914 +++++++++++++++++++++++++++ configs/fail2ban/nginx-nohome.conf | 6 + configs/fail2ban/nginx-noproxy.conf | 5 + configs/fail2ban/nginx-noscript.conf | 6 + 5 files changed, 1047 insertions(+) create mode 100644 configs/fail2ban/README.md create mode 100644 configs/fail2ban/jail.local create mode 100644 configs/fail2ban/nginx-nohome.conf create mode 100644 configs/fail2ban/nginx-noproxy.conf create mode 100644 configs/fail2ban/nginx-noscript.conf diff --git a/configs/fail2ban/README.md b/configs/fail2ban/README.md new file mode 100644 index 0000000..60e7026 --- /dev/null +++ b/configs/fail2ban/README.md @@ -0,0 +1,116 @@ +####Fail2ban + +Be sure to configure mail notifications if you plan to use them. +Found in jail.local - +```bash +# Destination email address used solely for the interpolations in +# jail.{conf,local,d/*} configuration files. +destemail = user@gmail.com + +# Sender email address used solely for some actions +sender = admin@hostname + +# E-mail action. Since 0.8.1 Fail2Ban uses sendmail MTA for the +# mailing. Change mta configuration parameter to mail if you want to +# revert to conventional 'mail'. +mta = mail + +# Default protocol +protocol = tcp +``` + + +Default fail2ban action set to `action = %(action_mwl)s` + +These configurations can be used to activate the below jails within fail2ban - +```bash +[nginx-noproxy] + +enabled = true +port = http,https +filter = nginx-noproxy +logpath = /var/log/nginx/access.log +maxretry = 2 + +[nginx-nohome] + +enabled = true +port = http,https +filter = nginx-nohome +logpath = /var/log/nginx/access.log +maxretry = 2 + +[nginx-badbots] + +enabled = true +port = http,https +filter = nginx-badbots +logpath = /var/log/nginx/access.log +maxretry = 2 + +[nginx-noscript] + +enabled = true +port = http,https +filter = nginx-noscript +logpath = /var/log/nginx/access.log +maxretry = 6 + +[nginx-http-auth] + +enabled = true +filter = nginx-http-auth +port = http,https +logpath = /var/log/nginx/error.log + +[sshd] +# To use more aggressive sshd modes set filter parameter "mode" in jail.local: +# normal (default), ddos, extra or aggressive (combines all). +# See "tests/files/logs/sshd" or "filter.d/sshd.conf" for usage example and[Definition] +failregex = ^ -.*GET.*(\.php|\.asp|\.exe|\.pl|\.cgi|\.scgi) +ignoreregex = details. +#mode = normal +enabled = true +port = 22 +logpath = %(sshd_log)s +backend = %(sshd_backend)s +``` + +The following filters are also included, which are required to exist within the `/etc/fail2ban/filter.d/` directory. All other jails within this configuration are provided with the default installation of fail2ban on Ubuntu. + +```bash +# /etc/fail2ban/filter.d/nginx-noscript.conf +[Definition] + +failregex = ^ -.*GET.*(\.php|\.asp|\.exe|\.pl|\.cgi|\.scgi) + +ignoreregex = + +``` + +```bash +# /etc/fail2ban/filter.d/nginx-nohome.conf +[Definition] + +failregex = ^ -.*GET .*/~.* + +ignoreregex = +``` + +```bash +# /etc/fail2ban/filter.d/nginx-noproxy.conf +[Definition] + +failregex = ^ -.*GET http.* + +ignoreregex = +``` + +To use these configurations, nginx must be running on the host. Run the commands below to apply them. +```bash +git clone https://github.com/shaunrd0/klips; +sudo cp klips/configs/fail2ban/jail.local /etc/fail2ban/jail.local; +sudo cp klips/configs/fail2ban/nginx* /etc/fail2ban/filter.d/; +sudo systemctl restart fail2ban; +sudo fail2ban-client status; +``` diff --git a/configs/fail2ban/jail.local b/configs/fail2ban/jail.local new file mode 100644 index 0000000..356cdf7 --- /dev/null +++ b/configs/fail2ban/jail.local @@ -0,0 +1,914 @@ +# +# WARNING: heavily refactored in 0.9.0 release. Please review and +# customize settings for your setup. +# +# Changes: in most of the cases you should not modify this +# file, but provide customizations in jail.local file, +# or separate .conf files under jail.d/ directory, e.g.: +# +# HOW TO ACTIVATE JAILS: +# +# YOU SHOULD NOT MODIFY THIS FILE. +# +# It will probably be overwritten or improved in a distribution update. +# +# Provide customizations in a jail.local file or a jail.d/customisation.local. +# For example to change the default bantime for all jails and to enable the +# ssh-iptables jail the following (uncommented) would appear in the .local file. +# See man 5 jail.conf for details. +# +# [DEFAULT] +# bantime = 1h +# +# [sshd] +# enabled = true +# +# See jail.conf(5) man page for more information + + + +# Comments: use '#' for comment lines and ';' (following a space) for inline comments + + +[INCLUDES] + +#before = paths-distro.conf +before = paths-debian.conf + +# The DEFAULT allows a global definition of the options. They can be overridden +# in each jail afterwards. + +[DEFAULT] + +# +# MISCELLANEOUS OPTIONS +# + +# "ignorself" specifies whether the local resp. own IP addresses should be ignored +# (default is true). Fail2ban will not ban a host which matches such addresses. +#ignorself = true + +# "ignoreip" can be a list of IP addresses, CIDR masks or DNS hosts. Fail2ban +# will not ban a host which matches an address in this list. Several addresses +# can be defined using space (and/or comma) separator. +#ignoreip = 127.0.0.1/8 ::1 + +# External command that will take an tagged arguments to ignore, e.g. , +# and return true if the IP is to be ignored. False otherwise. +# +# ignorecommand = /path/to/command +ignorecommand = + +# "bantime" is the number of seconds that a host is banned. +bantime = 10m + +# A host is banned if it has generated "maxretry" during the last "findtime" +# seconds. +findtime = 10m + +# "maxretry" is the number of failures before a host get banned. +maxretry = 5 + +# "backend" specifies the backend used to get files modification. +# Available options are "pyinotify", "gamin", "polling", "systemd" and "auto". +# This option can be overridden in each jail as well. +# +# pyinotify: requires pyinotify (a file alteration monitor) to be installed. +# If pyinotify is not installed, Fail2ban will use auto. +# gamin: requires Gamin (a file alteration monitor) to be installed. +# If Gamin is not installed, Fail2ban will use auto. +# polling: uses a polling algorithm which does not require external libraries. +# systemd: uses systemd python library to access the systemd journal. +# Specifying "logpath" is not valid for this backend. +# See "journalmatch" in the jails associated filter config +# auto: will try to use the following backends, in order: +# pyinotify, gamin, polling. +# +# Note: if systemd backend is chosen as the default but you enable a jail +# for which logs are present only in its own log files, specify some other +# backend for that jail (e.g. polling) and provide empty value for +# journalmatch. See https://github.com/fail2ban/fail2ban/issues/959#issuecomment-74901200 +backend = auto + +# "usedns" specifies if jails should trust hostnames in logs, +# warn when DNS lookups are performed, or ignore all hostnames in logs +# +# yes: if a hostname is encountered, a DNS lookup will be performed. +# warn: if a hostname is encountered, a DNS lookup will be performed, +# but it will be logged as a warning. +# no: if a hostname is encountered, will not be used for banning, +# but it will be logged as info. +# raw: use raw value (no hostname), allow use it for no-host filters/actions (example user) +usedns = warn + +# "logencoding" specifies the encoding of the log files handled by the jail +# This is used to decode the lines from the log file. +# Typical examples: "ascii", "utf-8" +# +# auto: will use the system locale setting +logencoding = auto + +# "enabled" enables the jails. +# By default all jails are disabled, and it should stay this way. +# Enable only relevant to your setup jails in your .local or jail.d/*.conf +# +# true: jail will be enabled and log files will get monitored for changes +# false: jail is not enabled +enabled = false + + +# "mode" defines the mode of the filter (see corresponding filter implementation for more info). +mode = normal + +# "filter" defines the filter to use by the jail. +# By default jails have names matching their filter name +# +filter = %(__name__)s[mode=%(mode)s] + + +# +# ACTIONS +# + +# Some options used for actions + +# Destination email address used solely for the interpolations in +# jail.{conf,local,d/*} configuration files. +destemail = user@gmail.com + +# Sender email address used solely for some actions +sender = admin@hostname + +# E-mail action. Since 0.8.1 Fail2Ban uses sendmail MTA for the +# mailing. Change mta configuration parameter to mail if you want to +# revert to conventional 'mail'. +mta = mail + +# Default protocol +protocol = tcp + +# Specify chain where jumps would need to be added in ban-actions expecting parameter chain +chain = + +# Ports to be banned +# Usually should be overridden in a particular jail +port = 0:65535 + +# Format of user-agent https://tools.ietf.org/html/rfc7231#section-5.5.3 +fail2ban_agent = Fail2Ban/%(fail2ban_version)s + +# +# Action shortcuts. To be used to define action parameter + +# Default banning action (e.g. iptables, iptables-new, +# iptables-multiport, shorewall, etc) It is used to define +# action_* variables. Can be overridden globally or per +# section within jail.local file +banaction = iptables-multiport +banaction_allports = iptables-allports + +# The simplest action to take: ban only +action_ = %(banaction)s[name=%(__name__)s, bantime="%(bantime)s", port="%(port)s", protocol="%(protocol)s", chain="%(chain)s"] + +# ban & send an e-mail with whois report to the destemail. +action_mw = %(banaction)s[name=%(__name__)s, bantime="%(bantime)s", port="%(port)s", protocol="%(protocol)s", chain="%(chain)s"] + %(mta)s-whois[name=%(__name__)s, sender="%(sender)s", dest="%(destemail)s", protocol="%(protocol)s", chain="%(chain)s"] + +# ban & send an e-mail with whois report and relevant log lines +# to the destemail. +action_mwl = %(banaction)s[name=%(__name__)s, bantime="%(bantime)s", port="%(port)s", protocol="%(protocol)s", chain="%(chain)s"] + %(mta)s-whois-lines[name=%(__name__)s, sender="%(sender)s", dest="%(destemail)s", logpath=%(logpath)s, chain="%(chain)s"] + +# See the IMPORTANT note in action.d/xarf-login-attack for when to use this action +# +# ban & send a xarf e-mail to abuse contact of IP address and include relevant log lines +# to the destemail. +action_xarf = %(banaction)s[name=%(__name__)s, bantime="%(bantime)s", port="%(port)s", protocol="%(protocol)s", chain="%(chain)s"] + xarf-login-attack[service=%(__name__)s, sender="%(sender)s", logpath=%(logpath)s, port="%(port)s"] + +# ban IP on CloudFlare & send an e-mail with whois report and relevant log lines +# to the destemail. +action_cf_mwl = cloudflare[cfuser="%(cfemail)s", cftoken="%(cfapikey)s"] + %(mta)s-whois-lines[name=%(__name__)s, sender="%(sender)s", dest="%(destemail)s", logpath=%(logpath)s, chain="%(chain)s"] + +# Report block via blocklist.de fail2ban reporting service API +# +# See the IMPORTANT note in action.d/blocklist_de.conf for when to use this action. +# Specify expected parameters in file action.d/blocklist_de.local or if the interpolation +# `action_blocklist_de` used for the action, set value of `blocklist_de_apikey` +# in your `jail.local` globally (section [DEFAULT]) or per specific jail section (resp. in +# corresponding jail.d/my-jail.local file). +# +action_blocklist_de = blocklist_de[email="%(sender)s", service=%(filter)s, apikey="%(blocklist_de_apikey)s", agent="%(fail2ban_agent)s"] + +# Report ban via badips.com, and use as blacklist +# +# See BadIPsAction docstring in config/action.d/badips.py for +# documentation for this action. +# +# NOTE: This action relies on banaction being present on start and therefore +# should be last action defined for a jail. +# +action_badips = badips.py[category="%(__name__)s", banaction="%(banaction)s", agent="%(fail2ban_agent)s"] +# +# Report ban via badips.com (uses action.d/badips.conf for reporting only) +# +action_badips_report = badips[category="%(__name__)s", agent="%(fail2ban_agent)s"] + +# Report ban via abuseipdb.com. +# +# See action.d/abuseipdb.conf for usage example and details. +# +action_abuseipdb = abuseipdb + +# Choose default action. To change, just override value of 'action' with the +# interpolation to the chosen action shortcut (e.g. action_mw, action_mwl, etc) in jail.local +# globally (section [DEFAULT]) or per specific section +action = %(action_mwl)s + + +# +# JAILS +# + +# +# SSH servers +# + +[sshd] + +# To use more aggressive sshd modes set filter parameter "mode" in jail.local: +# normal (default), ddos, extra or aggressive (combines all). +# See "tests/files/logs/sshd" or "filter.d/sshd.conf" for usage example and details. +#mode = normal +port = 22 +logpath = %(sshd_log)s +backend = %(sshd_backend)s + + +[dropbear] + +port = ssh +logpath = %(dropbear_log)s +backend = %(dropbear_backend)s + + +[selinux-ssh] + +port = ssh +logpath = %(auditd_log)s + + +# +# HTTP servers +# + +[apache-auth] + +port = http,https +logpath = %(apache_error_log)s + + +[apache-badbots] +# Ban hosts which agent identifies spammer robots crawling the web +# for email addresses. The mail outputs are buffered. +port = http,https +logpath = %(apache_access_log)s +bantime = 48h +maxretry = 1 + + +[apache-noscript] + +port = http,https +logpath = %(apache_error_log)s + + +[apache-overflows] + +port = http,https +logpath = %(apache_error_log)s +maxretry = 2 + + +[apache-nohome] + +port = http,https +logpath = %(apache_error_log)s +maxretry = 2 + + +[apache-botsearch] + +port = http,https +logpath = %(apache_error_log)s +maxretry = 2 + + +[apache-fakegooglebot] + +port = http,https +logpath = %(apache_access_log)s +maxretry = 1 +ignorecommand = %(ignorecommands_dir)s/apache-fakegooglebot + + +[apache-modsecurity] + +port = http,https +logpath = %(apache_error_log)s +maxretry = 2 + + +[apache-shellshock] + +port = http,https +logpath = %(apache_error_log)s +maxretry = 1 + + +[openhab-auth] + +filter = openhab +action = iptables-allports[name=NoAuthFailures] +logpath = /opt/openhab/logs/request.log + +[nginx-http-auth] + +enabled = true +port = http,https +logpath = %(nginx_error_log)s + +# To use 'nginx-limit-req' jail you should have `ngx_http_limit_req_module` +# and define `limit_req` and `limit_req_zone` as described in nginx documentation +# http://nginx.org/en/docs/http/ngx_http_limit_req_module.html +# or for example see in 'config/filter.d/nginx-limit-req.conf' +[nginx-limit-req] +port = http,https +logpath = %(nginx_error_log)s + +[nginx-botsearch] + +enabled = true +port = http,https +logpath = %(nginx_error_log)s +maxretry = 2 + +[nginx-noproxy] + +enabled = true +port = http,https +filter = nginx-noproxy +logpath = /var/log/nginx/access.log +maxretry = 2 + +[nginx-noscript] + +enabled = true +port = http,https +filter = nginx-noscript +logpath = /var/log/nginx/access.log +maxretry = 6 + +[nginx-nohome] + +enabled = true +port = http,https +filter = nginx-nohome +logpath = /var/log/nginx/access.log +maxretry = 2 + +# Ban attackers that try to use PHP's URL-fopen() functionality +# through GET/POST variables. - Experimental, with more than a year +# of usage in production environments. + +[php-url-fopen] + +port = http,https +logpath = %(nginx_access_log)s + %(apache_access_log)s + + +[suhosin] + +port = http,https +logpath = %(suhosin_log)s + + +[lighttpd-auth] +# Same as above for Apache's mod_auth +# It catches wrong authentifications +port = http,https +logpath = %(lighttpd_error_log)s + + +# +# Webmail and groupware servers +# + +[roundcube-auth] + +port = http,https +logpath = %(roundcube_errors_log)s +# Use following line in your jail.local if roundcube logs to journal. +#backend = %(syslog_backend)s + + +[openwebmail] + +port = http,https +logpath = /var/log/openwebmail.log + + +[horde] + +port = http,https +logpath = /var/log/horde/horde.log + + +[groupoffice] + +port = http,https +logpath = /home/groupoffice/log/info.log + + +[sogo-auth] +# Monitor SOGo groupware server +# without proxy this would be: +# port = 20000 +port = http,https +logpath = /var/log/sogo/sogo.log + + +[tine20] + +logpath = /var/log/tine20/tine20.log +port = http,https + + +# +# Web Applications +# +# + +[drupal-auth] + +port = http,https +logpath = %(syslog_daemon)s +backend = %(syslog_backend)s + +[guacamole] + +port = http,https +logpath = /var/log/tomcat*/catalina.out + +[monit] +#Ban clients brute-forcing the monit gui login +port = 2812 +logpath = /var/log/monit + + +[webmin-auth] + +port = 10000 +logpath = %(syslog_authpriv)s +backend = %(syslog_backend)s + + +[froxlor-auth] + +port = http,https +logpath = %(syslog_authpriv)s +backend = %(syslog_backend)s + + +# +# HTTP Proxy servers +# +# + +[squid] + +port = 80,443,3128,8080 +logpath = /var/log/squid/access.log + + +[3proxy] + +port = 3128 +logpath = /var/log/3proxy.log + + +# +# FTP servers +# + + +[proftpd] + +port = ftp,ftp-data,ftps,ftps-data +logpath = %(proftpd_log)s +backend = %(proftpd_backend)s + + +[pure-ftpd] + +port = ftp,ftp-data,ftps,ftps-data +logpath = %(pureftpd_log)s +backend = %(pureftpd_backend)s + + +[gssftpd] + +port = ftp,ftp-data,ftps,ftps-data +logpath = %(syslog_daemon)s +backend = %(syslog_backend)s + + +[wuftpd] + +port = ftp,ftp-data,ftps,ftps-data +logpath = %(wuftpd_log)s +backend = %(wuftpd_backend)s + + +[vsftpd] +# or overwrite it in jails.local to be +# logpath = %(syslog_authpriv)s +# if you want to rely on PAM failed login attempts +# vsftpd's failregex should match both of those formats +port = ftp,ftp-data,ftps,ftps-data +logpath = %(vsftpd_log)s + + +# +# Mail servers +# + +# ASSP SMTP Proxy Jail +[assp] + +port = smtp,465,submission +logpath = /root/path/to/assp/logs/maillog.txt + + +[courier-smtp] + +port = smtp,465,submission +logpath = %(syslog_mail)s +backend = %(syslog_backend)s + + +[postfix] +# To use another modes set filter parameter "mode" in jail.local: +mode = more +port = smtp,465,submission +logpath = %(postfix_log)s +backend = %(postfix_backend)s + + +[postfix-rbl] + +filter = postfix[mode=rbl] +port = smtp,465,submission +logpath = %(postfix_log)s +backend = %(postfix_backend)s +maxretry = 1 + + +[sendmail-auth] + +port = submission,465,smtp +logpath = %(syslog_mail)s +backend = %(syslog_backend)s + + +[sendmail-reject] +# To use more aggressive modes set filter parameter "mode" in jail.local: +# normal (default), extra or aggressive +# See "tests/files/logs/sendmail-reject" or "filter.d/sendmail-reject.conf" for usage example and details. +#mode = normal +port = smtp,465,submission +logpath = %(syslog_mail)s +backend = %(syslog_backend)s + + +[qmail-rbl] + +filter = qmail +port = smtp,465,submission +logpath = /service/qmail/log/main/current + + +# dovecot defaults to logging to the mail syslog facility +# but can be set by syslog_facility in the dovecot configuration. +[dovecot] + +port = pop3,pop3s,imap,imaps,submission,465,sieve +logpath = %(dovecot_log)s +backend = %(dovecot_backend)s + + +[sieve] + +port = smtp,465,submission +logpath = %(dovecot_log)s +backend = %(dovecot_backend)s + + +[solid-pop3d] + +port = pop3,pop3s +logpath = %(solidpop3d_log)s + + +[exim] +# see filter.d/exim.conf for further modes supported from filter: +#mode = normal +port = smtp,465,submission +logpath = %(exim_main_log)s + + +[exim-spam] + +port = smtp,465,submission +logpath = %(exim_main_log)s + + +[kerio] + +port = imap,smtp,imaps,465 +logpath = /opt/kerio/mailserver/store/logs/security.log + + +# +# Mail servers authenticators: might be used for smtp,ftp,imap servers, so +# all relevant ports get banned +# + +[courier-auth] + +port = smtp,465,submission,imap,imaps,pop3,pop3s +logpath = %(syslog_mail)s +backend = %(syslog_backend)s + + +[postfix-sasl] + +filter = postfix[mode=auth] +port = smtp,465,submission,imap,imaps,pop3,pop3s +# You might consider monitoring /var/log/mail.warn instead if you are +# running postfix since it would provide the same log lines at the +# "warn" level but overall at the smaller filesize. +logpath = %(postfix_log)s +backend = %(postfix_backend)s + + +[perdition] + +port = imap,imaps,pop3,pop3s +logpath = %(syslog_mail)s +backend = %(syslog_backend)s + + +[squirrelmail] + +port = smtp,465,submission,imap,imap2,imaps,pop3,pop3s,http,https,socks +logpath = /var/lib/squirrelmail/prefs/squirrelmail_access_log + + +[cyrus-imap] + +port = imap,imaps +logpath = %(syslog_mail)s +backend = %(syslog_backend)s + + +[uwimap-auth] + +port = imap,imaps +logpath = %(syslog_mail)s +backend = %(syslog_backend)s + + +# +# +# DNS servers +# + + +# !!! WARNING !!! +# Since UDP is connection-less protocol, spoofing of IP and imitation +# of illegal actions is way too simple. Thus enabling of this filter +# might provide an easy way for implementing a DoS against a chosen +# victim. See +# http://nion.modprobe.de/blog/archives/690-fail2ban-+-dns-fail.html +# Please DO NOT USE this jail unless you know what you are doing. +# +# IMPORTANT: see filter.d/named-refused for instructions to enable logging +# This jail blocks UDP traffic for DNS requests. +# [named-refused-udp] +# +# filter = named-refused +# port = domain,953 +# protocol = udp +# logpath = /var/log/named/security.log + +# IMPORTANT: see filter.d/named-refused for instructions to enable logging +# This jail blocks TCP traffic for DNS requests. + +[named-refused] + +port = domain,953 +logpath = /var/log/named/security.log + + +[nsd] + +port = 53 +action = %(banaction)s[name=%(__name__)s-tcp, port="%(port)s", protocol="tcp", chain="%(chain)s", actname=%(banaction)s-tcp] + %(banaction)s[name=%(__name__)s-udp, port="%(port)s", protocol="udp", chain="%(chain)s", actname=%(banaction)s-udp] +logpath = /var/log/nsd.log + + +# +# Miscellaneous +# + +[asterisk] + +port = 5060,5061 +action = %(banaction)s[name=%(__name__)s-tcp, port="%(port)s", protocol="tcp", chain="%(chain)s", actname=%(banaction)s-tcp] + %(banaction)s[name=%(__name__)s-udp, port="%(port)s", protocol="udp", chain="%(chain)s", actname=%(banaction)s-udp] + %(mta)s-whois[name=%(__name__)s, dest="%(destemail)s"] +logpath = /var/log/asterisk/messages +maxretry = 10 + + +[freeswitch] + +port = 5060,5061 +action = %(banaction)s[name=%(__name__)s-tcp, port="%(port)s", protocol="tcp", chain="%(chain)s", actname=%(banaction)s-tcp] + %(banaction)s[name=%(__name__)s-udp, port="%(port)s", protocol="udp", chain="%(chain)s", actname=%(banaction)s-udp] + %(mta)s-whois[name=%(__name__)s, dest="%(destemail)s"] +logpath = /var/log/freeswitch.log +maxretry = 10 + + +# To log wrong MySQL access attempts add to /etc/my.cnf in [mysqld] or +# equivalent section: +# log-warning = 2 +# +# for syslog (daemon facility) +# [mysqld_safe] +# syslog +# +# for own logfile +# [mysqld] +# log-error=/var/log/mysqld.log +[mysqld-auth] + +port = 3306 +logpath = %(mysql_log)s +backend = %(mysql_backend)s + + +# Log wrong MongoDB auth (for details see filter 'filter.d/mongodb-auth.conf') +[mongodb-auth] +# change port when running with "--shardsvr" or "--configsvr" runtime operation +port = 27017 +logpath = /var/log/mongodb/mongodb.log + + +# Jail for more extended banning of persistent abusers +# !!! WARNINGS !!! +# 1. Make sure that your loglevel specified in fail2ban.conf/.local +# is not at DEBUG level -- which might then cause fail2ban to fall into +# an infinite loop constantly feeding itself with non-informative lines +# 2. Increase dbpurgeage defined in fail2ban.conf to e.g. 648000 (7.5 days) +# to maintain entries for failed logins for sufficient amount of time +[recidive] + +logpath = /var/log/fail2ban.log +banaction = %(banaction_allports)s +bantime = 1w +findtime = 1d + + +# Generic filter for PAM. Has to be used with action which bans all +# ports such as iptables-allports, shorewall + +[pam-generic] +# pam-generic filter can be customized to monitor specific subset of 'tty's +banaction = %(banaction_allports)s +logpath = %(syslog_authpriv)s +backend = %(syslog_backend)s + + +[xinetd-fail] + +banaction = iptables-multiport-log +logpath = %(syslog_daemon)s +backend = %(syslog_backend)s +maxretry = 2 + + +# stunnel - need to set port for this +[stunnel] + +logpath = /var/log/stunnel4/stunnel.log + + +[ejabberd-auth] + +port = 5222 +logpath = /var/log/ejabberd/ejabberd.log + + +[counter-strike] + +logpath = /opt/cstrike/logs/L[0-9]*.log +# Firewall: http://www.cstrike-planet.com/faq/6 +tcpport = 27030,27031,27032,27033,27034,27035,27036,27037,27038,27039 +udpport = 1200,27000,27001,27002,27003,27004,27005,27006,27007,27008,27009,27010,27011,27012,27013,27014,27015 +action = %(banaction)s[name=%(__name__)s-tcp, port="%(tcpport)s", protocol="tcp", chain="%(chain)s", actname=%(banaction)s-tcp] + %(banaction)s[name=%(__name__)s-udp, port="%(udpport)s", protocol="udp", chain="%(chain)s", actname=%(banaction)s-udp] + +# consider low maxretry and a long bantime +# nobody except your own Nagios server should ever probe nrpe +[nagios] + +logpath = %(syslog_daemon)s ; nrpe.cfg may define a different log_facility +backend = %(syslog_backend)s +maxretry = 1 + + +[oracleims] +# see "oracleims" filter file for configuration requirement for Oracle IMS v6 and above +logpath = /opt/sun/comms/messaging64/log/mail.log_current +banaction = %(banaction_allports)s + +[directadmin] +logpath = /var/log/directadmin/login.log +port = 2222 + +[portsentry] +logpath = /var/lib/portsentry/portsentry.history +maxretry = 1 + +[pass2allow-ftp] +# this pass2allow example allows FTP traffic after successful HTTP authentication +port = ftp,ftp-data,ftps,ftps-data +# knocking_url variable must be overridden to some secret value in jail.local +knocking_url = /knocking/ +filter = apache-pass[knocking_url="%(knocking_url)s"] +# access log of the website with HTTP auth +logpath = %(apache_access_log)s +blocktype = RETURN +returntype = DROP +action = %(action_)s[blocktype=%(blocktype)s, returntype=%(returntype)s] +bantime = 1h +maxretry = 1 +findtime = 1 + + +[murmur] +# AKA mumble-server +port = 64738 +action = %(banaction)s[name=%(__name__)s-tcp, port="%(port)s", protocol=tcp, chain="%(chain)s", actname=%(banaction)s-tcp] + %(banaction)s[name=%(__name__)s-udp, port="%(port)s", protocol=udp, chain="%(chain)s", actname=%(banaction)s-udp] +logpath = /var/log/mumble-server/mumble-server.log + + +[screensharingd] +# For Mac OS Screen Sharing Service (VNC) +logpath = /var/log/system.log +logencoding = utf-8 + +[haproxy-http-auth] +# HAProxy by default doesn't log to file you'll need to set it up to forward +# logs to a syslog server which would then write them to disk. +# See "haproxy-http-auth" filter for a brief cautionary note when setting +# maxretry and findtime. +logpath = /var/log/haproxy.log + +[slapd] +port = ldap,ldaps +logpath = /var/log/slapd.log + +[domino-smtp] +port = smtp,ssmtp +logpath = /home/domino01/data/IBM_TECHNICAL_SUPPORT/console.log + +[phpmyadmin-syslog] +port = http,https +logpath = %(syslog_authpriv)s +backend = %(syslog_backend)s + + +[zoneminder] +# Zoneminder HTTP/HTTPS web interface auth +# Logs auth failures to apache2 error log +port = http,https +logpath = %(apache_error_log)s + diff --git a/configs/fail2ban/nginx-nohome.conf b/configs/fail2ban/nginx-nohome.conf new file mode 100644 index 0000000..83d065e --- /dev/null +++ b/configs/fail2ban/nginx-nohome.conf @@ -0,0 +1,6 @@ +[Definition] + +failregex = ^ -.*GET .*/~.* + +ignoreregex = + diff --git a/configs/fail2ban/nginx-noproxy.conf b/configs/fail2ban/nginx-noproxy.conf new file mode 100644 index 0000000..a091a0d --- /dev/null +++ b/configs/fail2ban/nginx-noproxy.conf @@ -0,0 +1,5 @@ +[Definition] + +failregex = ^ -.*GET http.* + +ignoreregex = diff --git a/configs/fail2ban/nginx-noscript.conf b/configs/fail2ban/nginx-noscript.conf new file mode 100644 index 0000000..2a8c37e --- /dev/null +++ b/configs/fail2ban/nginx-noscript.conf @@ -0,0 +1,6 @@ +[Definition] + +failregex = ^ -.*GET.*(\.php|\.asp|\.exe|\.pl|\.cgi|\.scgi) + +ignoreregex = +