{"id":840,"date":"2018-07-05T11:11:00","date_gmt":"2018-07-05T09:11:00","guid":{"rendered":"https:\/\/support.versa.host\/?p=840"},"modified":"2026-05-28T22:10:51","modified_gmt":"2026-05-28T20:10:51","slug":"modsecurity-a-webalkalmazas-szintu-tuzfal-waf","status":"publish","type":"post","link":"https:\/\/versa.host\/hu\/blog\/modsecurity-a-webalkalmazas-szintu-tuzfal-waf\/","title":{"rendered":"ModSecurity, a webalkalmaz\u00e1s-szint\u0171 t\u0171zfal (WAF)"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">A webalkalmaz\u00e1sok, honlapok ki vannak t\u00e9ve rosszindulat\u00fa t\u00e1mad\u00e1soknak, amelyek az ismert biztons\u00e1gi r\u00e9seket haszn\u00e1lj\u00e1k ki. Gyakoriak az SQL-injekt\u00e1l\u00e1sos \u00e9s a webhelyek k\u00f6z\u00f6tti, parancsprogramot alkalmaz\u00f3 t\u00e1mad\u00e1sok. Az ilyen t\u00e1mad\u00e1sok megel\u0151z\u00e9se, illetve megakad\u00e1lyoz\u00e1sa az alkalmaz\u00e1s k\u00f3dj\u00e1ban is fontos, de kih\u00edv\u00e1st jelenthet. Itt ny\u00fajthat seg\u00edts\u00e9get egy webalkalmaz\u00e1si t\u0171zfal, angolul web application firewall, r\u00f6viden WAF. Ilyen megold\u00e1s a cPanelbe \u00e9p\u00edtett ModSecurity.<\/p>\n\n\n\n<figure class=\"wp-block-image alignleft size-medium\"><img decoding=\"async\" src=\"https:\/\/versa.host\/wp-content\/uploads\/2024\/03\/modsecurity-a-webalkalmazas-szintu-tuzfal-300x200.jpg\" alt=\"\" class=\"wp-image-841\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">A ModSecurityt eredetileg az Apache HTTP kiszolg\u00e1l\u00f3 moduljak\u00e9nt tervezt\u00e9k. A ny\u00edlt forr\u00e1sk\u00f3d\u00fa el\u00e9rhet\u0151s\u00e9ge miatt a vil\u00e1g egyik legn\u00e9pszer\u0171bb webes alkalmaz\u00e1s t\u0171zfala lett, \u00e9s mivel \u00f6n\u00e1ll\u00f3 motork\u00e9nt fut, a webszerverrel API-n kereszt\u00fcl kommunik\u00e1l, \u00edgy ma m\u00e1r k\u00f6nnyebben implement\u00e1lhat\u00f3, \u00edgy haszn\u00e1lni lehet Microsoft f\u00e9le IIS-en \u00e9s Nginx-en is. &nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A ModSecurity teh\u00e1t egy t\u0171zfal megold\u00e1s, ami kontroll\u00e1lja a bemenetet, a kimenetet \u00e9s\/vagy a hozz\u00e1f\u00e9r\u00e9st egy alkalmaz\u00e1shoz vagy szolg\u00e1ltat\u00e1shoz, p\u00e9ld\u00e1ul egy cPanel webt\u00e1rhelyre telep\u00edtett WordPresshez. A fenyeget\u00e9sek \u00e9szlel\u00e9se \u00e9rdek\u00e9ben a ModSecurity be\u00e1gyaz\u00f3dik a webszerver el\u00e9, azaz minden forgalom \u00e1tmegy rajta miel\u0151tt a weboldal bet\u00f6lt\u0151dne.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">El\u0151nye, hogy nem kell a forr\u00e1sk\u00f3dhoz ny\u00falni a v\u00e9delem haszn\u00e1lat\u00e1\u00e9rt, a m\u0171k\u00f6d\u00e9se t\u00e1rhely szint\u0171, \u00edgy megv\u00e9d minden m\u00f6g\u00e9 telep\u00edtett weboldalt.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A ModSecurity t\u00f6bbek k\u00f6z\u00f6tt a k\u00f6vetkez\u0151 gyakori internetes biztons\u00e1gi r\u00e9sek ellen ny\u00fajt v\u00e9delmet:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; &nbsp; &nbsp; \u2022 SQL-injekt\u00e1l\u00e1s elleni v\u00e9delem<br>&nbsp; &nbsp; &nbsp; \u2022 Webhelyek k\u00f6z\u00f6tti, parancsprogramot alkalmaz\u00f3 t\u00e1mad\u00e1sok elleni v\u00e9delem<br>&nbsp; &nbsp; &nbsp; \u2022 Gyakori webes t\u00e1mad\u00e1sok (p\u00e9ld\u00e1ul parancsinjekt\u00e1l\u00e1s, HTTP-k\u00e9r\u00e9scsemp\u00e9szet, HTTP-v\u00e1laszfeloszt\u00e1s \u00e9st\u00e1volif\u00e1jl-besz\u00far\u00e1sos t\u00e1mad\u00e1s) elleni v\u00e9delem<br>&nbsp; &nbsp; &nbsp; \u2022 HTTP protokoll megs\u00e9rt\u00e9se elleni v\u00e9delem<br>&nbsp; &nbsp; &nbsp; \u2022 Robotprogramok, webbej\u00e1r\u00f3k \u00e9s k\u00e9polvas\u00f3k elleni v\u00e9delem<br>&nbsp; &nbsp; &nbsp; \u2022 Alkalmaz\u00e1sok (pl. Apache, IIS stb.) gyakori konfigur\u00e1ci\u00f3s hib\u00e1inak \u00e9szlel\u00e9se<br>&nbsp; &nbsp; &nbsp; \u2022 Null byte t\u00e1mad\u00e1sok megel\u0151z\u00e9se<br>&nbsp; &nbsp; &nbsp; \u2022 Szerver azonos\u00edt\u00f3 maszkol\u00e1sa<br>&nbsp; &nbsp; &nbsp; \u2022 stb.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Be- \u00e9s kikapcsol\u00e1s<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00e1rhelyeinken a ModSecurity alapb\u00f3l akt\u00edv, azaz, ha l\u00e9trehozunk \u00d6nnek egy cPanel fi\u00f3kot akkor bekapcsolt \u00e1llapotba ker\u00fcl rajta ez a v\u00e9delem. A cPanel fel\u00fcleten bel\u00e9pve a Biztons\u00e1g nev\u0171 dobozban tal\u00e1lhat\u00f3. A ModSecurity ikonra kattintva megjelenik egy lista a t\u00e1rhelyen szerepl\u0151 domain nevekkel, \u00e9s jel\u00f6li, melyikn\u00e9l van bekapcsolva \u00e9s melyikn\u00e9l kikapcsolva. Itt \u00d6n is aktiv\u00e1lhatja vagy inaktiv\u00e1lhatja.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/versa.host\/wp-content\/uploads\/2024\/03\/modsecurity.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Mintak\u00f3d wordPress brute force v\u00e9delemhez<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">A WordPress jelenleg a vil\u00e1g egyik legismertebb, legelterjedtebb rendszere, amivel szinte b\u00e1rmilyen webes jelenl\u00e9t ki\u00e9p\u00edthet\u0151. \u00c9ppen ez\u00e9rt nagy figyelem is van rajta, valamint a telep\u00edthet\u0151 pluginok sebezhet\u0151s\u00e9gein. Alap\u00e9rtelmezett esetben a WordPress admin oldal\u00e1nak \u00e9s a bel\u00e9ptet\u00e9snek nincs sok v\u00e9delme, ez\u00e9rt \u00e9rdemes arra r\u00e1er\u0151s\u00edteni.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ha az al\u00e1bbi k\u00f3dot be\u00edrja a .htaccess f\u00e1jlba, majd felt\u00f6lti a WordPress gy\u00f6k\u00e9r mapp\u00e1j\u00e1ba, akkor kitiltja a k\u00e9retlen\u00fcl bel\u00e9pni pr\u00f3b\u00e1lkoz\u00f3t 5 percre, abban az esetben, ha 3 perc alatt 10-n\u00e9l t\u00f6bbsz\u00f6r pr\u00f3b\u00e1l bel\u00e9pni a WordPress wp-login.php url-en kereszt\u00fcl:<code>SecAction phase:1,nolog,pass,initcol:ip=%{REMOTE_ADDR},initcol:user=%{REMOTE_ADDR}<br><br># React if block flag has been set.<br>SecRule user:bf_block \"@gt 0\" \"deny,status:401,log,msg:'ip address blocked for 5 minutes, more than 10 login attempts in 3 minutes.'\"<br># Setup Tracking. On a successful login, a 302 redirect is performed, a 200 indicates login failed.<br>SecRule RESPONSE_STATUS \"^302\" \"phase:5,t:none,nolog,pass,setvar:ip.bf_counter=0\"<br>SecRule RESPONSE_STATUS \"^200\" \"phase:5,chain,t:none,nolog,pass,setvar:ip.bf_counter=+1,deprecatevar:ip.bf_counter=1\/180\"<br>SecRule ip:bf_counter \"@gt 10\" \"t:none,setvar:user.bf_block=1,expirevar:user.bf_block=300,setvar:ip.bf_counter=0\"<br><\/code><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Akkor \u00e9rdemes haszn\u00e1lni, ha a cPanel t\u00e1rhelyen be van kapcsolva a ModSecurity \u00e9s nem haszn\u00e1l az oldal egy\u00e9b elj\u00e1r\u00e1st a wp-login.php v\u00e9delm\u00e9re.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A webalkalmaz\u00e1sok, honlapok ki vannak t\u00e9ve rosszindulat\u00fa t\u00e1mad\u00e1soknak, amelyek az ismert biztons\u00e1gi r\u00e9seket haszn\u00e1lj\u00e1k ki. Gyakoriak az SQL-injekt\u00e1l\u00e1sos \u00e9s a webhelyek k\u00f6z\u00f6tti, parancsprogramot alkalmaz\u00f3 t\u00e1mad\u00e1sok. Az ilyen t\u00e1mad\u00e1sok megel\u0151z\u00e9se, illetve megakad\u00e1lyoz\u00e1sa az alkalmaz\u00e1s k\u00f3dj\u00e1ban is fontos, de kih\u00edv\u00e1st jelenthet. Itt ny\u00fajthat seg\u00edts\u00e9get egy webalkalmaz\u00e1si t\u0171zfal, angolul web application firewall, r\u00f6viden WAF. Ilyen megold\u00e1s a cPanelbe [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":6468,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[192],"tags":[],"class_list":["post-840","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.7 (Yoast SEO v27.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>ModSecurity, a webalkalmaz\u00e1s-szint\u0171 t\u0171zfal (WAF) &#8226; Versanus<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"hu_HU\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ModSecurity, a webalkalmaz\u00e1s-szint\u0171 t\u0171zfal (WAF)\" \/>\n<meta property=\"og:description\" content=\"A webalkalmaz\u00e1sok, honlapok ki vannak t\u00e9ve rosszindulat\u00fa t\u00e1mad\u00e1soknak, amelyek az ismert biztons\u00e1gi r\u00e9seket haszn\u00e1lj\u00e1k ki. Gyakoriak az SQL-injekt\u00e1l\u00e1sos \u00e9s a webhelyek k\u00f6z\u00f6tti, parancsprogramot alkalmaz\u00f3 t\u00e1mad\u00e1sok. Az ilyen t\u00e1mad\u00e1sok megel\u0151z\u00e9se, illetve megakad\u00e1lyoz\u00e1sa az alkalmaz\u00e1s k\u00f3dj\u00e1ban is fontos, de kih\u00edv\u00e1st jelenthet. Itt ny\u00fajthat seg\u00edts\u00e9get egy webalkalmaz\u00e1si t\u0171zfal, angolul web application firewall, r\u00f6viden WAF. Ilyen megold\u00e1s a cPanelbe [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/versa.host\/hu\/blog\/modsecurity-a-webalkalmazas-szintu-tuzfal-waf\/\" \/>\n<meta property=\"og:site_name\" content=\"Versanus\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/versanus.eu\" \/>\n<meta property=\"article:published_time\" content=\"2018-07-05T09:11:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-05-28T20:10:51+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/versa.host\/wp-content\/uploads\/2024\/03\/modsecurity-a-webalkalmazas-szintu-tuzfal.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"650\" \/>\n\t<meta property=\"og:image:height\" content=\"433\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"M\u00e9h\u00e9sz P\u00e1l\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Szerz\u0151:\" \/>\n\t<meta name=\"twitter:data1\" content=\"M\u00e9h\u00e9sz P\u00e1l\" \/>\n\t<meta name=\"twitter:label2\" content=\"Becs\u00fclt olvas\u00e1si id\u0151\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 perc\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/versa.host\\\/hu\\\/blog\\\/modsecurity-a-webalkalmazas-szintu-tuzfal-waf\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/versa.host\\\/hu\\\/blog\\\/modsecurity-a-webalkalmazas-szintu-tuzfal-waf\\\/\"},\"author\":{\"name\":\"M\u00e9h\u00e9sz P\u00e1l\",\"@id\":\"https:\\\/\\\/versa.host\\\/hu\\\/#\\\/schema\\\/person\\\/e3d8a534a10d06ad9c4051c078b03eec\"},\"headline\":\"ModSecurity, a webalkalmaz\u00e1s-szint\u0171 t\u0171zfal (WAF)\",\"datePublished\":\"2018-07-05T09:11:00+00:00\",\"dateModified\":\"2026-05-28T20:10:51+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/versa.host\\\/hu\\\/blog\\\/modsecurity-a-webalkalmazas-szintu-tuzfal-waf\\\/\"},\"wordCount\":644,\"publisher\":{\"@id\":\"https:\\\/\\\/versa.host\\\/hu\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/versa.host\\\/hu\\\/blog\\\/modsecurity-a-webalkalmazas-szintu-tuzfal-waf\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/versa.host\\\/wp-content\\\/uploads\\\/2024\\\/03\\\/modsecurity-a-webalkalmazas-szintu-tuzfal.jpg\",\"articleSection\":[\"Blog\"],\"inLanguage\":\"hu\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/versa.host\\\/hu\\\/blog\\\/modsecurity-a-webalkalmazas-szintu-tuzfal-waf\\\/\",\"url\":\"https:\\\/\\\/versa.host\\\/hu\\\/blog\\\/modsecurity-a-webalkalmazas-szintu-tuzfal-waf\\\/\",\"name\":\"ModSecurity, a webalkalmaz\u00e1s-szint\u0171 t\u0171zfal (WAF) &#8226; 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