{"id":40817,"date":"2026-01-06T10:26:00","date_gmt":"2026-01-06T09:26:00","guid":{"rendered":"https:\/\/relnet.hu\/?p=40817"},"modified":"2026-01-06T10:26:00","modified_gmt":"2026-01-06T09:26:00","slug":"vedekezes-a-react2shell-serulekenyseg-ellen-a-loadmaster-waf-segitsegevel","status":"publish","type":"post","link":"https:\/\/relnet.hu\/en\/vedekezes-a-react2shell-serulekenyseg-ellen-a-loadmaster-waf-segitsegevel\/","title":{"rendered":"V\u00e9dekez\u00e9s a React2Shell s\u00e9r\u00fcl\u00e9kenys\u00e9g ellen a LoadMaster WAF seg\u00edts\u00e9g\u00e9vel"},"content":{"rendered":"<p>A React2Shell s\u00e9r\u00fcl\u00e9kenys\u00e9g l\u00e9nyege, hogy a t\u00e1mad\u00f3k speci\u00e1lisan kialak\u00edtott HTTP-k\u00e9r\u00e9seken kereszt\u00fcl k\u00e9pesek parancsokat injekt\u00e1lni az alkalmaz\u00e1sszerverekbe. Mivel ez a hiba k\u00f6zvetlen\u00fcl az oper\u00e1ci\u00f3s rendszer szintj\u00e9n teszi lehet\u0151v\u00e9 a beavatkoz\u00e1st, a kock\u00e1zati besorol\u00e1sa kritikus.<\/p>\n<h5>Hogyan ny\u00fajt v\u00e9delmet a LoadMaster WAF?<\/h5>\n<p>A <em>Progress Kemp LoadMaster<\/em> WAF modulja intelligens sz\u0171r\u0151r\u00e9tegk\u00e9nt funkcion\u00e1l a felhaszn\u00e1l\u00f3k \u00e9s az alkalmaz\u00e1sszerverek k\u00f6z\u00f6tt. A v\u00e9delem t\u00f6bb szinten val\u00f3sul meg:<\/p>\n<p><strong>1. Proakt\u00edv v\u00e9delem:<\/strong> A WAF k\u00e9pes azonos\u00edtani \u00e9s blokkolni a React2Shell t\u00e1mad\u00e1sokra jellemz\u0151 mint\u00e1zatokat m\u00e9g azel\u0151tt, hogy azok el\u00e9rn\u00e9k a s\u00e9r\u00fcl\u00e9keny backend szervert. Ez kritikus fontoss\u00e1g\u00fa olyankor, amikor a patch m\u00e9g nem \u00e1ll rendelkez\u00e9sre vagy m\u00e9g nem ker\u00fclt telep\u00edt\u00e9sre.<\/p>\n<p><strong>2. OWASP Core Rule Set t\u00e1mogat\u00e1s:<\/strong> A LoadMaster folyamatosan friss\u00edtett szab\u00e1lyk\u00e9szletei (mint p\u00e9ld\u00e1ul a CRS 3.x vagy 4.0) alap\u00e9rtelmezetten tartalmaznak olyan generikus v\u00e9delmi szab\u00e1lyokat, amelyek felismerik a parancsinjekt\u00e1l\u00e1si k\u00eds\u00e9rleteket.<\/p>\n<p><strong>3. H\u00e1l\u00f3zati szint\u0171 szegment\u00e1l\u00e1s:<\/strong> A WAF m\u00e9lyrehat\u00f3an k\u00e9pes vizsg\u00e1lni a titkos\u00edtott forgalmat is, ahol a t\u00e1mad\u00f3k gyakran elrejtik a k\u00e1rt\u00e9kony k\u00f3dokat.<\/p>\n<h5>Be\u00e1ll\u00edt\u00e1si javaslatok az optim\u00e1lis v\u00e9delemhez<\/h5>\n<p>A LoadMaster adminisztr\u00e1torainak az al\u00e1bbi l\u00e9p\u00e9sek megt\u00e9tele javasolt a v\u00e9delem maximaliz\u00e1l\u00e1sa \u00e9rdek\u00e9ben:<\/p>\n<ul>\n<li><strong>WAF aktiv\u00e1l\u00e1sa:<\/strong> Gy\u0151z\u0151dj\u00f6n meg r\u00f3la, hogy a WAF modul enged\u00e9lyezve van a kritikus Virtual Service-eken.<\/li>\n<li><strong>Szab\u00e1lyk\u00e9szletek friss\u00edt\u00e9se:<\/strong> Telep\u00edtse a leg\u00fajabb szab\u00e1lyfriss\u00edt\u00e9seket a LoadMaster fel\u00fclet\u00e9n kereszt\u00fcl.<\/li>\n<li><strong>Logol\u00e1s \u00e9s monitoroz\u00e1s:<\/strong> \u00c1ll\u00edtsa be a riaszt\u00e1sokat a WAF esem\u00e9nyekre, hogy azonnal \u00e9rtes\u00fclj\u00f6n a blokkolt t\u00e1mad\u00e1si k\u00eds\u00e9rletekr\u0151l.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-40818\" src=\"https:\/\/relnet.hu\/wp-content\/uploads\/2026\/01\/diagram-showing-the-four-paranoia-levels-of-the-owasp-crs-used-by-the-loadmaster-waf.png\" alt=\"\" width=\"985\" height=\"497\" srcset=\"https:\/\/relnet.hu\/wp-content\/uploads\/2026\/01\/diagram-showing-the-four-paranoia-levels-of-the-owasp-crs-used-by-the-loadmaster-waf.png 985w, https:\/\/relnet.hu\/wp-content\/uploads\/2026\/01\/diagram-showing-the-four-paranoia-levels-of-the-owasp-crs-used-by-the-loadmaster-waf-300x151.png 300w, https:\/\/relnet.hu\/wp-content\/uploads\/2026\/01\/diagram-showing-the-four-paranoia-levels-of-the-owasp-crs-used-by-the-loadmaster-waf-768x388.png 768w, https:\/\/relnet.hu\/wp-content\/uploads\/2026\/01\/diagram-showing-the-four-paranoia-levels-of-the-owasp-crs-used-by-the-loadmaster-waf-198x100.png 198w, https:\/\/relnet.hu\/wp-content\/uploads\/2026\/01\/diagram-showing-the-four-paranoia-levels-of-the-owasp-crs-used-by-the-loadmaster-waf-150x75.png 150w, https:\/\/relnet.hu\/wp-content\/uploads\/2026\/01\/diagram-showing-the-four-paranoia-levels-of-the-owasp-crs-used-by-the-loadmaster-waf-480x242.png 480w\" sizes=\"auto, (max-width:767px) 480px, (max-width:985px) 100vw, 985px\" \/><\/p>\n<p style=\"text-align: center;\"><em>A Loadmaster WAF paranoia szintj\u00e9t 2-esre kell \u00e1ll\u00edtani a React2Shell \u00e9szlel\u00e9se \u00e9rdek\u00e9ben<\/em><\/p>\n<p>Egy robusztus h\u00e1l\u00f3zati r\u00e9teg, mint amilyen a Kemp LoadMaster, n\u00e9lk\u00fcl\u00f6zhetetlen eleme a modern kiberbiztons\u00e1gi architekt\u00far\u00e1nak. A WAF nemcsak a m\u00e1r ismert hib\u00e1k ellen v\u00e9d, hanem id\u0151t nyer a rendszerek biztons\u00e1g\u00e1nak \u00e9rv\u00e9nyes\u00edt\u00e9s\u00e9hez.<\/p>\n<h5>Forr\u00e1s<\/h5>\n<p><a href=\"https:\/\/kemptechnologies.com\/blog\/improve-protection-against-react2shell-vulnerability-using-progress-kemp-loadmaster-waf\" target=\"_blank\" rel=\"noopener\">Improve Protection Against React2Shell Vulnerability Using Progress Kemp LoadMaster WAF<\/a><\/p>\n<h5>Kapcsol\u00f3d\u00f3 tartalom<\/h5>\n<p><a href=\"https:\/\/relnet.hu\/kepzesek\/valaszthato-kepzeseink\/?catid=2484\" target=\"_blank\" rel=\"noopener\">Progress Kemp k\u00e9pz\u00e9sek a RelNet eLearning programban<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A k\u00f6zelm\u00faltban azonos\u00edtott React2Shell s\u00e9r\u00fcl\u00e9kenys\u00e9g komoly kock\u00e1zatot jelent a modern webes alkalmaz\u00e1sokra n\u00e9zve. Ez a biztons\u00e1gi hiba lehet\u0151v\u00e9 teszi a t\u00e1mad\u00f3k sz\u00e1m\u00e1ra, hogy t\u00e1voli k\u00f3dfuttat\u00e1st hajtsanak v\u00e9gre, amely teljes hozz\u00e1f\u00e9r\u00e9st biztos\u00edthat az \u00e9rintett szerverekhez. A Progress Kemp LoadMaster felhaszn\u00e1l\u00f3i azonban a be\u00e9p\u00edtett webalkalmaz\u00e1s-t\u0171zfal (WAF) seg\u00edts\u00e9g\u00e9vel hat\u00e9konyan v\u00e9dekezhetnek a fenyeget\u00e9ssel szemben.<\/p>\n","protected":false},"author":2089,"featured_media":40821,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2885],"tags":[98,2856,5157,1771],"yst_prominent_words":[],"class_list":["post-40817","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-progress-gyarto","tag-loadmaster","tag-progress-kemp","tag-react2shell","tag-waf"],"_links":{"self":[{"href":"https:\/\/relnet.hu\/en\/wp-json\/wp\/v2\/posts\/40817","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/relnet.hu\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/relnet.hu\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/relnet.hu\/en\/wp-json\/wp\/v2\/users\/2089"}],"replies":[{"embeddable":true,"href":"https:\/\/relnet.hu\/en\/wp-json\/wp\/v2\/comments?post=40817"}],"version-history":[{"count":7,"href":"https:\/\/relnet.hu\/en\/wp-json\/wp\/v2\/posts\/40817\/revisions"}],"predecessor-version":[{"id":40828,"href":"https:\/\/relnet.hu\/en\/wp-json\/wp\/v2\/posts\/40817\/revisions\/40828"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/relnet.hu\/en\/wp-json\/wp\/v2\/media\/40821"}],"wp:attachment":[{"href":"https:\/\/relnet.hu\/en\/wp-json\/wp\/v2\/media?parent=40817"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/relnet.hu\/en\/wp-json\/wp\/v2\/categories?post=40817"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/relnet.hu\/en\/wp-json\/wp\/v2\/tags?post=40817"},{"taxonomy":"yst_prominent_words","embeddable":true,"href":"https:\/\/relnet.hu\/en\/wp-json\/wp\/v2\/yst_prominent_words?post=40817"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}