{"id":36245,"date":"2019-10-31T22:10:28","date_gmt":"2019-10-31T19:10:28","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novyj-bild-nemesida-waf-free-dlya-nginx\/"},"modified":"2019-10-31T22:10:28","modified_gmt":"2019-10-31T19:10:28","slug":"novyj-bild-nemesida-waf-free-dlya-nginx","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/administrirovanie\/novyj-bild-nemesida-waf-free-dlya-nginx","title":{"rendered":"\u00daj Nemesida WAF Free build az NGINX-hez","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><img decoding=\"async\" alt=\"\u00daj Nemesida WAF Free build az NGINX-hez\" src=\"\/wp-content\/uploads\/2019\/07\/6d684f498688b4aab26911f30c0394d6.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nTavaly kiadjuk a Nemesida WAF Free-t \u2013 dinamikus modult az NGINX-hez, amely blokkolja a webalkalmaz\u00e1sokra ir\u00e1nyul\u00f3 t\u00e1mad\u00e1sokat. A kereskedelmi verzi\u00f3val ellent\u00e9tben, amely g\u00e9pi tanul\u00e1son alapul, a ingyenes verzi\u00f3 csak al\u00e1\u00edr\u00e1sos m\u00f3dszerrel elemzi a k\u00e9r\u00e9seket.<\/p>\n<h3>A Nemesida WAF 4.0.129 kiad\u00e1s\u00e1nak jellemz\u0151i<\/h3>\n<p>\nA jelenlegi kiad\u00e1s el\u0151tt a dinamikus modul, a Nemesida WAF, csak az Nginx Stable 1.12, 1.14 \u00e9s 1.16 verzi\u00f3kat t\u00e1mogatta. Az \u00faj kiad\u00e1sban t\u00e1mogat\u00e1s ker\u00fclt hozz\u00e1 az Nginx Mainline verzi\u00f3hoz, kezdve a 1.17-t\u0151l, \u00e9s az Nginx Plushoz, kezdve az 1.15.10 (R18) verzi\u00f3t\u00f3l.<\/p>\n<h3>Mi\u00e9rt k\u00e9sz\u00edts\u00fcnk m\u00e9g egy WAF-ot?<\/h3>\n<p><noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\nA NAXSI \u00e9s a mod_security val\u00f3sz\u00edn\u0171leg a legn\u00e9pszer\u0171bb ingyenes WAF modulok, r\u00e1ad\u00e1sul a mod_security-t akt\u00edvan n\u00e9pszer\u0171s\u00edti az Nginx, m\u00edg eredetileg csak az Apache2-ben haszn\u00e1lt\u00e1k. Mindk\u00e9t megold\u00e1s ingyenes, ny\u00edlt forr\u00e1sk\u00f3d\u00fa, \u00e9s sok felhaszn\u00e1l\u00f3ja van vil\u00e1gszerte. A mod_security eset\u00e9n ingyenes \u00e9s kereskedelmi, \u00e9vi 500 doll\u00e1rba ker\u00fcl\u0151 al\u00e1\u00edr\u00e1s k\u00e9szletek \u00e9rhet\u0151k el, a NAXSI-hoz ingyenes \u201edozsi\u201d al\u00e1\u00edr\u00e1s k\u00e9szlet tartozik, de kieg\u00e9sz\u00edt\u0151 szab\u00e1lyk\u00e9szletek is tal\u00e1lhat\u00f3k.<\/p>\n<p>Id\u00e9n tesztelt\u00fck a NAXSI \u00e9s a Nemesida WAF Free m\u0171k\u00f6d\u00e9s\u00e9t. R\u00f6viden az eredm\u00e9nyekr\u0151l:<\/p>\n<ul>\n<li>A NAXSI nem hajt v\u00e9gre dupla URL-dek\u00f3dol\u00e1st a cookie-kban<\/li>\n<li>A NAXSI nagyon nehezen konfigur\u00e1lhat\u00f3 \u2013 alap\u00e9rtelmez\u00e9s szerint a szab\u00e1lyok alapbe\u00e1ll\u00edt\u00e1sai a webalkalmaz\u00e1ssal val\u00f3 interakci\u00f3 sor\u00e1n a k\u00e9r\u00e9sek t\u00f6bbs\u00e9g\u00e9t blokkolj\u00e1k (bejelentkez\u00e9s, profil vagy anyag szerkeszt\u00e9s, szavaz\u00e1s stb.), \u00e9s kiv\u00e9telek list\u00e1it kell gener\u00e1lni, ami h\u00e1tr\u00e1nyosan befoly\u00e1solja a biztons\u00e1got. A Nemesida WAF Free alap\u00e9rtelmezett be\u00e1ll\u00edt\u00e1sokkal a weboldal haszn\u00e1lata sor\u00e1n egyetlen hamis pozit\u00edv riaszt\u00e1st sem gener\u00e1lt.<\/li>\n<li>Az NAXSI \u00e1ltal t\u00falfuttatott t\u00e1mad\u00e1sok sz\u00e1ma t\u00f6bbsz\u00f6r\u00f6se \u00e9s stb.<\/li>\n<\/ul>\n<p>\nA h\u00e1tr\u00e1nyok ellen\u00e9re a NAXSI \u00e9s a mod_security legal\u00e1bb k\u00e9t el\u0151nnyel rendelkezik \u2013 ny\u00edlt forr\u00e1sk\u00f3d \u00e9s nagy felhaszn\u00e1l\u00f3i b\u00e1zis. T\u00e1mogatjuk a forr\u00e1sk\u00f3d nyilv\u00e1noss\u00e1gra hozatal\u00e1nak \u00f6tlet\u00e9t, de jelenleg nem tudjuk ezt megtenni a kereskedelmi verzi\u00f3 \u201ekal\u00f3zkod\u00e1s\u00e1val\u201d kapcsolatos lehets\u00e9ges probl\u00e9m\u00e1k miatt. De hogy ezt a h\u00e1tr\u00e1nyt kompenz\u00e1ljuk \u2013 teljes m\u00e9rt\u00e9kben nyilv\u00e1noss\u00e1gra hozzuk az al\u00e1\u00edr\u00e1s k\u00e9szlet tartalm\u00e1t. \u00c9rt\u00e9kelj\u00fck a mag\u00e1n\u00e9letet, \u00e9s lehet\u0151s\u00e9get k\u00edn\u00e1lunk arra, hogy err\u0151l maguk is besz\u00e9ljenek proxy seg\u00edts\u00e9g\u00e9vel.<a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/hu\/server\/dts-los-angeles\/\"   title=\"a szerver\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"3507\">a szerver<\/a>.<\/p>\n<p>A Nemesida WAF Free jellemz\u0151je:<\/p>\n<ul>\n<li>magas min\u0151s\u00e9g\u0171 al\u00e1\u00edr\u00e1s k\u00e9szlet minim\u00e1lis hamis pozit\u00edv \u00e9s hamis negat\u00edv esettel.<\/li>\n<li>telep\u00edt\u00e9s \u00e9s friss\u00edt\u00e9s a t\u00e1rol\u00f3b\u00f3l (ez gyors \u00e9s k\u00e9nyelmes);<\/li>\n<li>egyszer\u0171 \u00e9s \u00e9rthet\u0151 esem\u00e9nyek incidenst, nem pedig a NAXSI-hoz hasonl\u00f3 \"zavart\";<\/li>\n<li>teljesen ingyenes, nincs korl\u00e1toz\u00e1s a forgalom, virtu\u00e1lis hosztok stb. sz\u00e1m\u00e1ban;<\/li>\n<\/ul>\n<p>\n\u00d6sszegz\u00e9sk\u00e9nt n\u00e9h\u00e1ny k\u00e9rd\u00e9st mutatok be a WAF m\u0171k\u00f6d\u00e9s\u00e9nek \u00e9rt\u00e9kel\u00e9s\u00e9re (aj\u00e1nlott haszn\u00e1lni minden z\u00f3n\u00e1ban: URL, ARGS, Fejl\u00e9cek &amp; Body):<\/p>\n<p><code>')) un\",\"ion se\",\"lect 1,2,3,4,5,6,7,8,9,0,11#\"]<br \/>\n')) union\/**\/select\/**\/1\/**\/2\/**\/3\/**\/4\/**\/5\/**\/6\/**\/7\/**\/8\/**\/9\/**\/'some_text',\/**\/11#\"]<br \/>\nunion(select(1),2,3,4,5,6,7,8,9,0x70656e746573746974,11)#\"]<br \/>\n')) union+\/*!select*\/\/\/ (1),(2),(3),(4),(5),(6),(7),(8),(9),(0x70656e746573746974),(11)#\"]<br \/>\n')) 5union*\\\/ 5select*\\\/ (1),(2),(3),(4),(5),(6),(7),(8),(9.),(0x70656e746573746974),(11)#\"]<br \/>\n')) **union**select (1),(2),(3),(4),(5),(6),(7),(8),(9),(0x70656e746573746974),(11)#\"]<br \/>\n1807182982union<br \/>\nselect123456789%2some_text11<br \/>\ncat \/et?\/?pa?swd<br \/>\ncat \/et'c\/pa'ss'wd<br \/>\ncat \/et*\/pa**wd<br \/>\ne'c'ho 'swd test pentest' |awk '{print \"cat \/etc\/pas\"$1}' |bas'h<br \/>\ncat \/etc\/passwd<br \/>\ncat$u+\/etc$u\/passwd$u<br \/>\n&lt;svg\/onload=alert()\/\/<\/code><\/p>\n<p>Ha a k\u00e9rd\u00e9seket nem blokkolj\u00e1k, akkor val\u00f3sz\u00edn\u0171, hogy a WAF a val\u00f3di t\u00e1mad\u00e1st is \u00e1tengedi. P\u00e9ld\u00e1k haszn\u00e1lata el\u0151tt gy\u0151z\u0151dj\u00f6n meg r\u00f3la, hogy a WAF nem blokkolja az \u00e9rv\u00e9nyes k\u00e9r\u00e9seket.<br \/>\n<br \/>Forr\u00e1s: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/post\/459976\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412 \u043f\u0440\u043e\u0448\u043b\u043e\u043c \u0433\u043e\u0434\u0443 \u043c\u044b \u0432\u044b\u043f\u0443\u0441\u0442\u0438\u043b\u0438 Nemesida WAF Free \u2014 \u0434\u0438\u043d\u0430\u043c\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u043c\u043e\u0434\u0443\u043b\u044c \u0434\u043b\u044f NGINX, \u0431\u043b\u043e\u043a\u0438\u0440\u0443\u044e\u0449\u0438\u0439 \u0430\u0442\u0430\u043a\u0438 \u043d\u0430 \u0432\u0435\u0431-\u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u044f. \u0412 \u043e\u0442\u043b\u0438\u0447\u0438\u0435 \u043e\u0442 \u043a\u043e\u043c\u043c\u0435\u0440\u0447\u0435\u0441\u043a\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0438, \u043e\u0441\u043d\u043e\u0432\u0430\u043d\u043d\u043e\u0439 \u043d\u0430 \u0440\u0430\u0431\u043e\u0442\u0435 \u043c\u0430\u0448\u0438\u043d\u043d\u043e\u0433\u043e \u043e\u0431\u0443\u0447\u0435\u043d\u0438\u044f, \u0431\u0435\u0441\u043f\u043b\u0430\u0442\u043d\u0430\u044f \u0432\u0435\u0440\u0441\u0438\u044f \u0430\u043d\u0430\u043b\u0438\u0437\u0438\u0440\u0443\u0435\u0442 \u0437\u0430\u043f\u0440\u043e\u0441\u044b \u0442\u043e\u043b\u044c\u043a\u043e \u0441\u0438\u0433\u043d\u0430\u0442\u0443\u0440\u043d\u044b\u043c \u043c\u0435\u0442\u043e\u0434\u043e\u043c. \u041e\u0441\u043e\u0431\u0435\u043d\u043d\u043e\u0441\u0442\u0438 \u0440\u0435\u043b\u0438\u0437\u0430 Nemesida WAF 4.0.129 \u0414\u043e \u0442\u0435\u043a\u0443\u0449\u0435\u0433\u043e \u0440\u0435\u043b\u0438\u0437\u0430 \u0434\u0438\u043d\u0430\u043c\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u043c\u043e\u0434\u0443\u043b\u044c Nemesida WAF \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u043b \u0442\u043e\u043b\u044c\u043a\u043e Nginx Stable 1.12, 1.14 \u0438 1.16. \u0412 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":27112,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-36245","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0412 \u043f\u0440\u043e\u0448\u043b\u043e\u043c \u0433\u043e\u0434\u0443 \u043c\u044b \u0432\u044b\u043f\u0443\u0441\u0442\u0438\u043b\u0438 Nemesida WAF Free \u2014.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta 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