FM / imh-modsec

/etc/apache2/conf.d/imh-modsec

Name	Size	Mode	Actions
html/	-	0755	rm
01_base_rules.conf	19822	0644	edit dl rm
05_additional_directives.conf	6950	0644	edit dl rm
15_bad_requests.conf	2300	0644	edit dl rm
19_bad_bots.conf	5363	0644	edit dl rm
20_known_hacks.conf	4886	0644	edit dl rm
21_spam_scripts.conf	1599	0644	edit dl rm
31_shellshock.conf	806	0644	edit dl rm
40_wordpress.conf	9511	0644	edit dl rm
40_xmlrpc.conf	2374	0644	edit dl rm
47_premium_web_builder.conf	83	0644	edit dl rm
alibaba_cidrtrack.lua	12769	0644	edit dl rm
alibaba_network.txt	1789	0644	edit dl rm
bot_budget_bots.txt	113	0644	edit dl rm
bot_ratelimit.lua	2921	0644	edit dl rm
imh-renumber.csv	2460	0644	edit dl rm

Edit: /etc/apache2/conf.d/imh-modsec/40_wordpress.conf (9511B)

# both.conf
# Initialize collection to track brute force attempts
SecAction phase:1,nolog,pass,initcol:RESOURCE=%{SERVER_NAME}_%{SCRIPT_FILENAME},id:13050

#
# BEGIN wp-login.php redirect_to arg rules
#
# T3 Trac #7968 (https://trac.imhtech.net/T3/ticket/7968)
# If recaptcha is used in concert with wp-login.php, skip test for
# redirect_to arg.
#
# This rule is a little naive and intentionally doesn't _strictly_
# match observed arg names in case their names change.
SecRule ARGS_POST_NAMES "recaptcha" \
    "id:13504,pass,log,skipAfter:END_REDIRECT_TO_ARG_REQUIRED"
SecMarker BEGIN_REDIRECT_TO_ARG_REQUIRED

# if referrer is cPanel, skip this rule
SecRule REQUEST_HEADERS:Referer "@rx (:208[23]|https?://cpanel\.)" \
    "id:13503,phase:2,pass,nolog,skipAfter:END_REDIRECT_TO_ARG_REQUIRED"

# Block login requests that don't set redirect_to arg
SecRule &ARGS_POST:redirect_to "@eq 0" "id:13501,pass,nolog,setvar:TX.brute"
SecRule ARGS:redirect_to "@rx ^$" "id:13502,setvar:TX.brute,pass,nolog"
SecRule REQUEST_URI "/wp-login\.php" \
    "chain,deny,log,auditlog,status:406,\
    msg:'POST to wp-login.php without redirect_to',id:'13052',\
    tag:'WEB_ATTACK/SHELL ACCESS',severity:'4'"
SecRule &ARGS_POST:pwd "@gt 0" "chain"
SecRule &ARGS_POST:interim-login "@eq 0" "chain"
SecRule &ARGS_POST:log "@gt 0" "chain"
SecRule REQUEST_METHOD "POST" "chain"
SecRule TX:brute "@ge 1" "log"

SecMarker END_REDIRECT_TO_ARG_REQUIRED
#
# END wp-login.php redirect_to arg rules
#

# Block arbitrary file downloads via insecure versions of WordPress Slider Revolution
# T3 Trac #7893 (https://trac.imhtech.net/T3/ticket/7893)
<FilesMatch "admin-ajax.php">
    SecRule ARGS:action "revslider_show_image" \
        "chain,id:13507,deny,status:406,log,t:none,t:urlDecode,\
        msg:'Potential arbitrary file download attempt (MS-ISAC 2014-070)'"
    SecRule ARGS:img "\.\./" "t:none,t:urlDecode"
</FilesMatch>

# Inspect post content to wp-comments-post.php for <!–mfunc and block
# The vulnerability is outlined in the link below and affects Super Cache
# and W3TC-enabled sites
# http://blog.sucuri.net/2013/04/update-wp-super-cache-and-w3tc-immediately-remote-code-execution-vulnerability-disclosed.html 
SecRule REQUEST_URI "/wp-comments-post\.php" \
  "chain,deny,log,auditlog,status:406,id:13071,tag:'WEB_ATTACK/COMMAND INJECTION', \
  phase:2,severity:'4',msg:'POST request containing <!-mfunc tag'"
SecRule ARGS "<[!][-]mfunc.*[-]>" t:lowercase,t:htmlEntityDecode,t:urlDecode

# No posts to /wp-content/themes/mantra/uploads/.+\.php (was wp_mantra_theme.conf)
SecRule REQUEST_METHOD "POST" \
    "chain,deny,log,auditlog,status:406,severity:'4',id:'13065',\
    msg:'POST request mantra WordPress theme upload folder',\
    tag:'WEB_ATTACK/SHELL ACCESS'"
SecRule REQUEST_URI "/wp-content/themes/mantra/uploads/.+\.php"

# No requests to any theme archive/search php scripts (hacks) (was wp_archive_search.conf)
SecRule REQUEST_METHOD "^POST$" \
    "chain,deny,log,auditlog,status:406,id:'13064',severity:'4',\
    msg:'POST request to archive or search',\
    tag:'WEB_ATTACK/SHELL ACCESS'"
SecRule REQUEST_URI "/wp-content/themes/[^/]+/(archives*|search)\.php"

# Blocks access to w3tc dbcache directory, a vector that can be used to glean password hashes (was w3tc-dbcache.conf)
SecRule REQUEST_URI "wp-content/w3tc/dbcache" \
    "deny,log,auditlog,status:406,id:'13578',t:none,t:lowercase,\
    t:htmlEntityDecode,t:removeWhitespace,severity:'4',\
    msg:'Attempt to access w3tc dbcache',\
    tag:'WEB_ATTACK/SHELL EXPLOIT'"

# No requests to any .php files with an md5 name in /temp/ folders (was timthumbtemp.conf)
SecRule REQUEST_METHOD "^GET|POST$" \
    "chain,deny,log,auditlog,status:406,id:'13973',\
    msg:'md5 request to temp folder',\
    tag:'WEB_ATTACK/SHELL ACCESS',severity:'4'"
SecRule REQUEST_URI "/temp/[0-9a-f]{32}\.php"

# Block fake (and real) bing bots from hitting wp-login.php or wp-admin (was bingwplogin.conf)
SecRule REQUEST_HEADERS:User-Agent "bingbot/2\.0;[+]http://www\.bing\.com/bingbot\.htm" \
    "chain,deny,log,auditlog,status:406,id:'13381',t:none,t:lowercase,\
    t:htmlEntityDecode,t:removeWhitespace,severity:'4',\
    msg:'Bingbot user agent requesting wp-login.php',\
    tag:'WEB_ATTACK/BRUTE FORCE'"
SecRule REQUEST_URI "/wp-login\.php|/wp-admin"

# Block 1-flash-gallery *.php uploads (was 1flashgallery.conf)
SecRule REQUEST_URI "1-flash-gallery/upload\.php\?.*fileext\=php" \
    "deny,log,auditlog,status:406,id:'13575',t:none,t:lowercase,\
    t:htmlEntityDecode,t:removeWhitespace,severity:'4',\
    msg:'1-flash-gallery upload exploit',\
    tag:'WEB_ATTACK/SHELL EXPLOIT'"

# CVE-2014-9119: Attempt to read files outside of the db-backup plugin (path ../../something)
SecRule REQUEST_METHOD "^GET|POST$" \
    "chain,deny,log,auditlog,status:406,id:'13057',severity:'4',\
    msg:'attempt to exploit db-backup plugin',\
    tag:'WEB_ATTACK/SHELL ACCESS'"
SecRule REQUEST_URI "/wp-content/plugins/db-backup/download.php" "chain"
SecRule ARGS "\.\.\/\.\.\/"

# http://blog.sucuri.net/2014/12/revslider-vulnerability-leads-to-massive-wordpress-soaksoak-compromise.html
SecRule ARGS_GET "wp-config.php" \
    "t:lowercase,deny,status:406,severity:'4',log,id:13058,\
    tag:'WEB_ATTACK/WP-CONFIG',\
    msg:'wp-config string in query'"

SecRule REQUEST_URI "\/update_extract\/revslider\/.*\.php.*" \
    "t:lowercase,deny,log,auditlog,status:406,id:'13059',severity:'4',\
    msg:'attempt to exploit revslider',\
    tag:'WEB_ATTACK/SHELL ACCESS'"

<LocationMatch wp-admin/admin-post.php>
    SecRule REQUEST_METHOD "POST" \
        "chain,deny,log,auditlog,status:406,id:13060,\
        msg:'Blocked for Wordpress MailPoet hack'"
    SecRule ARGS:page wysija_campaigns "chain"
    SecRule ARGS:action themes
</LocationMatch>

# Wordpress 4.2 Stored XSS
SecRule ARGS:/^(.+\-)?comment/ "@gt 21844" \
    "phase:2,deny,status:403,id:'13384',severity:'5',rev:'1.0.0',t:none,\
    t:length,setvar:'tx.msg=%{rule.msg}',\
    setvar:tx.anomaly_score=+%{tx.critical_anomaly_score},\
    setvar:tx.policy_score=+%{tx.critical_anomaly_score},\
    setvar:tx.%{rule.id}-POLICY/SIZE_LIMIT-%{matched_var_name}=%{matched_var},\
    msg:'Comment field too big'"

# Genericons - https://blog.sucuri.net/2015/04security-disclosure-jetpack-twentyfifteen-and-other-wordpress-plugins-vulnerable-to-dom-based-xss-affects-millions-of-installs.html
SecRule REQUEST_URI "genericons/example[0-9-_]*.html" \
    "deny,log,auditlog,status:406,id:'13385',t:none,t:lowercase,\
    t:htmlEntityDecode,t:removeWhitespace,severity:'4',\
    msg:'Genericons exploit',\
    tag:'WEB_ATTACK/GENERICON EXPLOIT'"

#Gravity forms vulns
SecRule REQUEST_COOKIES "(JHtldmFsKGJhc2U2NF9kZWNvZGUoJ1pYWmhiQ2hpWVhObE5qUmZaR1ZqYjJSbEtDUmZVRTlUVkZzbmFHVjFSME50UmtoeFYwZDZZMU5HV2lkZEtTazcnKSl9)" \
    "log,deny,auditlog,id:14204,rev:1,severity:3,\
    msg:'Known Malicious Payload.'"

# https://blog.sucuri.net/2015/10/security-advisory-stored-xss-in-akismet-wordpress-plugin.html
SecRule REQUEST_URI ".*\/wp-comments-post.php" \
    "deny,chain,log,auditlog,status:406,id:'13537',severity:'4',\
    msg:'akismet smiley exploit',\
    tag:'WEB_ATTACK/AKISMET EXPLOIT'"
SecRule REQUEST_METHOD "POST" "chain"
SecRule ARGS "\<a\ href=\'\r?\nhref\=\"\'\>.*(\:mrgreen\:|\:neutral\:|\:twisted\:|\:arrow\:|\:shock\:|\:smile\:|\:\?\?\?\:|\:cool\:|\:evil\:|\:grin\:|\:idea\:|\:oops\:|\:razz\:|\:roll\:|\:wink\:|\:cry\:|\:eek\:|\:lol\:|\:mad\:|\:sad\:|8\-\)|8\-O|\:\-$|\:\-$|\:\-\?|\:\-D|\:\-P|\:\-o|\:\-x|\:\-\||\;\-\)|8\)|8O|\:$|\:$|\:\?|\:D|\:P|\:o|\:x|\:\||\;\)|\:\!\:|\:\?\:).*\<\w+[\s\>]" "t:escapeSeqDecode"

# ded.conf

# --- BEGIN WordPress brute force mitigation rules ---
<IfModule mod_env.c>
    # Sourced from http://www.frameloss.org/2011/07/29/stopping-brute-force-logins-against-wordpress/
    # Cleaned up/tweaked by IMH

<Files "wp-login.php">
        # max_attempts are the number of attempts to allow before blocking
        SetEnv max_attempts 10

# attempt_interval is the amount of time in seconds that max_attempts
        # must be reached or exceeded in, 5 attempts in 90 seconds, etc.
        SetEnv attempt_interval 30

# once max_attempts are met in attempt_interval block for block_for seconds
        SetEnv block_for 900

# React if block flag has been set.
        SecRule RESOURCE:wpbf_block "@gt 0" \
            "log,id:13051,redirect:/mod-security-error/rule-13051.html,\
            msg:'wp_login access blocked for %{ENV.block_for} seconds, more than %{ENV.max_attempts} login attempts in 3 minutes.'"

# Setup Tracking.  On a successful login, a 302 redirect is performed.
        # A 200 indicates login failed, but only block if failed POST
        SecRule RESPONSE_STATUS "^302" \
            "phase:5,t:none,nolog,pass,setvar:RESOURCE.wpbf_counter=0,id:13053"
        SecRule RESPONSE_STATUS "^200" \
            "phase:5,chain,t:none,nolog,pass,id:13054"
        SecRule &ARGS_POST:pwd "@gt 0" "chain"
        SecRule &ARGS_POST:log "@gt 0" "chain"
        SecRule REQUEST_METHOD "POST" \
            "chain,t:none,setvar:RESOURCE.wpbf_counter=+1,\
            deprecatevar:RESOURCE.wpbf_counter=1/%{ENV.attempt_interval}"
        SecRule RESOURCE:wpbf_counter "@gt %{ENV.max_attempts}" \
            "t:none,setvar:RESOURCE.wpbf_block=1,\
            expirevar:RESOURCE.wpbf_block=%{ENV.block_for},\
            setvar:RESOURCE.wpbf_counter=0"
    </Files>
</IfModule>
# --- END WordPress brute force mitigation rules ---

cmd: