{"id":35582,"date":"2019-10-31T22:05:11","date_gmt":"2019-10-31T19:05:11","guid":{"rendered":"https:\/\/prohoster.info\/blog\/periodicheskaya-smena-parolej-ustarevshaya-praktika-prishlo-vremya-ot-neyo-otkazatsya\/"},"modified":"2019-10-31T22:05:11","modified_gmt":"2019-10-31T19:05:11","slug":"periodicheskaya-smena-parolej-ustarevshaya-praktika-prishlo-vremya-ot-neyo-otkazatsya","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/administrirovanie\/periodicheskaya-smena-parolej-ustarevshaya-praktika-prishlo-vremya-ot-neyo-otkazatsya","title":{"rendered":"A jelszavak peri\u00f3dikus cser\u00e9je \u2014 elavult gyakorlat, itt az id\u0151, hogy megszabaduljunk t\u0151le","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Sz\u00e1mos IT-rendszerben a jelszavak id\u0151szakos megv\u00e1ltoztat\u00e1s\u00e1nak k\u00f6telez\u0151 szab\u00e1lya \u00e9rv\u00e9nyes\u00fcl. Ez val\u00f3sz\u00edn\u0171leg a biztons\u00e1gi rendszerek leggy\u0171l\u00f6letesebb \u00e9s legfeleslegesebb k\u00f6vetelm\u00e9nye. Egyes felhaszn\u00e1l\u00f3k tr\u00fckk\u00f6k\u00e9nt egyszer\u0171en csak a sz\u00e1mjegyet v\u00e1ltoztatj\u00e1k meg a v\u00e9g\u00e9n.<\/p>\n<p>Ez a gyakorlat sok kellemetlens\u00e9get okozott. Az embereknek azonban el kellett viselni\u00fck, hiszen ez <i>a biztons\u00e1g \u00e9rdek\u00e9ben<\/i>. Most ez a tan\u00e1cs teljesen elavult. 2019 m\u00e1jus\u00e1ban m\u00e9g a Microsoft is v\u00e9gre elt\u00e1vol\u00edtotta a jelszavak id\u0151szakos megv\u00e1ltoztat\u00e1s\u00e1ra vonatkoz\u00f3 k\u00f6vetelm\u00e9nyeket a Windows 10 szem\u00e9lyi \u00e9s szerver verzi\u00f3k alapvet\u0151 biztons\u00e1gi k\u00f6vetelm\u00e9nyeib\u0151l: itt van <noindex><a rel=\"nofollow\" href=\"https:\/\/blogs.technet.microsoft.com\/secguide\/2019\/05\/23\/security-baseline-final-for-windows-10-v1903-and-windows-server-v1903\/\">a hivatalos nyilatkozat a blogban<\/a><\/noindex> a Windows 10 v 1903-as verzi\u00f3 m\u00f3dos\u00edt\u00e1sainak list\u00e1j\u00e1val (figyeljen a mondatra <i>A jelsz\u00f3 lej\u00e1rati politik\u00e1k elt\u00e1vol\u00edt\u00e1sa, amelyek az id\u0151szakos jelsz\u00f3v\u00e1ltoz\u00e1sokat k\u00f6vetelik meg<\/i>). Maguk a szab\u00e1lyok \u00e9s a rendszerpolitikai <i>Windows 10 Version 1903 \u00e9s Windows Server 2019 biztons\u00e1gi alapvonal<\/i> a Microsoft Security Compliance Toolkit 1.0 csomag r\u00e9szek\u00e9nt ker\u00fcltek be. <noindex><a rel=\"nofollow\" href=\"https:\/\/www.microsoft.com\/en-us\/download\/details.aspx?id=55319\">Ez\u00e9rt ezeket a dokumentumokat megmutathatja a f\u0151n\u00f6k\u00e9nek, \u00e9s mondhatja: az id\u0151k megv\u00e1ltoztak. A k\u00f6telez\u0151 jelsz\u00f3v\u00e1ltoztat\u00e1s m\u00e1r r\u00e9gm\u00falt, mostant\u00f3l gyakorlatilag hivatalosan is elavult. M\u00e9g a biztons\u00e1gi auditok sem fogj\u00e1k ellen\u0151rizni ezt a k\u00f6vetelm\u00e9nyt (ha az Windows sz\u00e1m\u00edt\u00f3g\u00e9pek alapvet\u0151 v\u00e9delm\u00e9r\u0151l sz\u00f3l\u00f3 hivatalos el\u0151\u00edr\u00e1sokra t\u00e1maszkodnak).<\/a><\/noindex>.<\/p>\n<p>A Windows 10 v1809 alapvet\u0151 biztons\u00e1gi politik\u00e1inak list\u00e1j\u00e1nak r\u00e9szlete, \u00e9s a 1903-as verzi\u00f3beli v\u00e1ltoztat\u00e1sok, ahol a jelszavak \u00e9rv\u00e9nyess\u00e9gi id\u0151szak\u00e1ra vonatkoz\u00f3 politik\u00e1k m\u00e1r nem alkalmazand\u00f3k. Mellesleg, az \u00faj verzi\u00f3ban alap\u00e9rtelmez\u00e9s szerint a rendszergazda \u00e9s a vend\u00e9gfi\u00f3kok is elt\u00f6rl\u00e9sre ker\u00fclnek.<br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\n<img decoding=\"async\" alt=\"A jelszavak peri\u00f3dikus cser\u00e9je \u2014 elavult gyakorlat, itt az id\u0151, hogy megszabaduljunk t\u0151le\" src=\"\/wp-content\/uploads\/bf4f4abb5d5b3820195c58bfee706ce6.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>A Microsoft \u00e9rthet\u0151en elmagyar\u00e1zza a blogj\u00e1ban, hogy mi\u00e9rt mondtak le a k\u00f6telez\u0151 jelsz\u00f3v\u00e1ltoztat\u00e1s szab\u00e1ly\u00e1r\u00f3l: \"A jelsz\u00f3 id\u0151szakos lej\u00e1rata csup\u00e1n annak val\u00f3sz\u00edn\u0171s\u00e9g\u00e9t\u0151l v\u00e9d, hogy a jelsz\u00f3t (vagy a hash-t) ellopj\u00e1k a lej\u00e1rat\u00e1nak ideje alatt, \u00e9s azt jogosulatlan szem\u00e9ly haszn\u00e1lja fel. Ha a jelsz\u00f3 nem lett ellopva, nincs \u00e9rtelme azt megv\u00e1ltoztatni. Ha pedig bizony\u00edt\u00e9kokat tal\u00e1l, amelyek arra utalnak, hogy a jelsz\u00f3 ellop\u00e1sra ker\u00fclt, nyilv\u00e1nval\u00f3an azonnal cselekedni szeretne, nem pedig megv\u00e1rni a lej\u00e1ratot, hogy orvosolhassa a probl\u00e9m\u00e1t.\"<\/i><\/p>\n<p>A Microsoft n\u00e9pszer\u0171en magyar\u00e1zza el a blogj\u00e1n, mi\u00e9rt mondtak le a k\u00f6telez\u0151 jelsz\u00f3csere szab\u00e1ly\u00e1r\u00f3l: \u201eA jelszavak id\u0151szakos lej\u00e1rata csup\u00e1n egy v\u00e9delmet jelent annak lehet\u0151s\u00e9ge ellen, hogy a jelsz\u00f3t (vagy annak hash-\u00e9t) ellopj\u00e1k a lej\u00e1rati id\u0151szak alatt, \u00e9s azt jogosulatlan szem\u00e9ly haszn\u00e1lja. Ha a jelsz\u00f3 nem lett ellopva, nincs \u00e9rtelme megv\u00e1ltoztatni. Ha pedig bizony\u00edt\u00e9kot nyer arr\u00f3l, hogy a jelsz\u00f3 ellop\u00e1sra ker\u00fclt, nyilv\u00e1nval\u00f3an azonnal l\u00e9p\u00e9seket akar tenni, nem v\u00e1rva a lej\u00e1rat idej\u00e9re, hogy orvosolhassa a probl\u00e9m\u00e1t.\u201d<\/p>\n<p>A Microsoft elmagyar\u00e1zza, hogy a mai k\u00f6r\u00fclm\u00e9nyek k\u00f6z\u00f6tt helytelen a jelsz\u00f3lop\u00e1s ellen \u00edgy v\u00e9dekezni: \u201eHa tudjuk, hogy a jelsz\u00f3 val\u00f3sz\u00edn\u0171leg ellopj\u00e1k, mennyi nap sz\u00e1m\u00edt elfogadhat\u00f3 id\u0151szaknak, hogy megengedj\u00fck a tolvajnak, hogy haszn\u00e1lja ezt az ellopott jelsz\u00f3t? Az alap\u00e9rtelmezett \u00e9rt\u00e9k 42 nap. Nem t\u0171nik ez nevets\u00e9gesen hossz\u00fa id\u0151nek? Val\u00f3ban, ez nagyon hossz\u00fa, \u00e9s m\u00e9gis a jelenlegi alap\u00e9rt\u00e9k\u00fcnk 60 napra van be\u00e1ll\u00edtva \u2014 kor\u00e1bban 90 napra \u2014 mert a gyakori lej\u00e1rati id\u0151 k\u00e9nyszer\u00edt\u00e9se saj\u00e1t probl\u00e9m\u00e1kat hoz l\u00e9tre. \u00c9s ha a jelsz\u00f3t nem felt\u00e9tlen\u00fcl fogj\u00e1k ellopni, akkor ezekkel a probl\u00e9m\u00e1kkal an\u00e9lk\u00fcl kell megk\u00fczdenie, hogy b\u00e1rmilyen el\u0151not megnyern\u00e9nk. Tov\u00e1bb\u00e1, ha a felhaszn\u00e1l\u00f3i hajland\u00f3k a jelsz\u00f3\u00e9rt \u00e9dess\u00e9gre v\u00e1ltani, akkor semmilyen jelsz\u00f3leh\u00edv\u00e1si politika nem seg\u00edt.<\/p>\n<h1>Alternat\u00edva<\/h1>\n<p>\nA Microsoft azt \u00edrja, hogy alapvet\u0151 biztons\u00e1gi politik\u00e1i olyan j\u00f3l kezelt, biztons\u00e1gra \u00fcgyel\u0151 v\u00e1llalatok haszn\u00e1lat\u00e1ra vonatkoznak. Ezeket auditorok sz\u00e1m\u00e1ra is \u00fatmutat\u00e1sk\u00e9nt sz\u00e1nt\u00e1k. Ha egy ilyen szervezet bevezette a tiltottnak sz\u00e1m\u00edt\u00f3 jelszavak list\u00e1it, a t\u00f6bbfaktoros hiteles\u00edt\u00e9st, a jelszavak brute force t\u00e1mad\u00e1sainak \u00e9s az anom\u00e1lis bejelentkez\u00e9si k\u00eds\u00e9rletek \u00e9szlel\u00e9s\u00e9t, sz\u00fcks\u00e9ges a jelsz\u00f3 id\u0151szakos lej\u00e1rata? \u00c9s ha nem vezett\u00e9k be a modern v\u00e9delmi eszk\u00f6z\u00f6ket, seg\u00edtene-e nekik a jelsz\u00f3 lej\u00e1rati ideje?<\/p>\n<p>A Microsoft logik\u00e1ja meglep\u0151en meggy\u0151z\u0151. K\u00e9t lehet\u0151s\u00e9g\u00fcnk van:<\/p>\n<ol>\n<li>A v\u00e1llalat modern v\u00e9delmi int\u00e9zked\u00e9seket vezetett be.\n<\/li>\n<li>C\u00e9g <i>nem<\/i> modern v\u00e9delmi int\u00e9zked\u00e9seket vezetett be.<\/li>\n<\/ol>\n<p>\nAz els\u0151 esetben a jelsz\u00f3 id\u0151szakos megv\u00e1ltoztat\u00e1sa nem ad tov\u00e1bbi el\u0151ny\u00f6ket.<\/p>\n<p>A m\u00e1sodik esetben a jelsz\u00f3 id\u0151szakos megv\u00e1ltoztat\u00e1sa haszontalan.<\/p>\n<p>Teh\u00e1t a jelsz\u00f3 lej\u00e1rata helyett el\u0151sz\u00f6r is <b>a t\u00f6bbfaktoros hiteles\u00edt\u00e9st<\/b>. Tov\u00e1bbi v\u00e9delmi int\u00e9zked\u00e9sek a fentiekben vannak felsorolva: a tiltottnak sz\u00e1m\u00edt\u00f3 jelszavak list\u00e1i, brute force \u00e9s m\u00e1s anom\u00e1lis bejelentkez\u00e9si k\u00eds\u00e9rletek \u00e9szlel\u00e9se.<\/p>\n<p>\u00ab<i>A jelsz\u00f3 id\u0151szakos lej\u00e1rata egy r\u00e9gi \u00e9s elavult v\u00e9delmi int\u00e9zked\u00e9s.<\/i>\u2014 \u00f6sszegzi a Microsoft, \u2014 \u00e9s nem gondoljuk, hogy a mi alapv\u00e9delmi szint\u00fcnknek b\u00e1rmilyen konkr\u00e9t \u00e9rt\u00e9ket kellene alkalmaznia. Az\u00e1ltal, hogy ezt elt\u00e1vol\u00edtj\u00e1k az alap szint\u00fcnkr\u0151l, a szervezetek v\u00e1laszthatj\u00e1k azt, ami a legjobban megfelel a v\u00e1rhat\u00f3 ig\u00e9nyeiknek, an\u00e9lk\u00fcl, hogy ellent\u00e9tesek lenn\u00e9nek aj\u00e1nl\u00e1sainkkal.<\/p>\n<h1>K\u00f6vetkeztet\u00e9s<\/h1>\n<p>\nHa egy c\u00e9g ma arra k\u00e9nyszer\u00edti a felhaszn\u00e1l\u00f3kat, hogy id\u0151nk\u00e9nt v\u00e1ltoztassanak jelsz\u00f3t, mit gondolhat egy k\u00fcls\u0151 megfigyel\u0151?<\/p>\n<ol>\n<li><b>Adott:<\/b> a c\u00e9g elavult v\u00e9delmi mechanizmust haszn\u00e1l.\n<\/li>\n<li><b>Felt\u00e9telez\u00e9s:<\/b> a c\u00e9g nem vezetett be modern v\u00e9delmi mechanizmusokat.\n<\/li>\n<li><b>K\u00f6vetkeztet\u00e9s:<\/b> ezek a jelszavak k\u00f6nnyebben el\u00e9rhet\u0151k \u00e9s felhaszn\u00e1lhat\u00f3k.<\/li>\n<\/ol>\n<p>\nEz\u00e9rt a jelszavak id\u0151szakos megv\u00e1ltoztat\u00e1sa vonz\u00f3bb c\u00e9lpontt\u00e1 teszi a c\u00e9get a t\u00e1mad\u00f3k sz\u00e1m\u00e1ra.<\/p>\n<p>\n<noindex><a rel=\"nofollow\" href=\"https:\/\/clck.ru\/FiAb5\"><img decoding=\"async\" alt=\"A jelszavak peri\u00f3dikus cser\u00e9je \u2014 elavult gyakorlat, itt az id\u0151, hogy megszabaduljunk t\u0151le\" src=\"\/wp-content\/uploads\/fd8a04b329bddf21771a4c76d36ec7bc.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<\/a><\/noindex><br \/>\n<br \/>Forr\u00e1s: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/globalsign\/blog\/457036\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412\u043e \u043c\u043d\u043e\u0433\u0438\u0445 IT-\u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445 \u0434\u0435\u0439\u0441\u0442\u0432\u0443\u0435\u0442 \u043e\u0431\u044f\u0437\u0430\u0442\u0435\u043b\u044c\u043d\u043e\u0435 \u043f\u0440\u0430\u0432\u0438\u043b\u043e \u043f\u0435\u0440\u0438\u043e\u0434\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u0441\u043c\u0435\u043d\u044b \u043f\u0430\u0440\u043e\u043b\u0435\u0439. \u042d\u0442\u043e, \u043f\u043e\u0436\u0430\u043b\u0443\u0439, \u0441\u0430\u043c\u043e\u0435 \u043d\u0435\u043d\u0430\u0432\u0438\u0441\u0442\u043d\u043e\u0435 \u0438 \u0441\u0430\u043c\u043e\u0435 \u0431\u0435\u0441\u043f\u043e\u043b\u0435\u0437\u043d\u043e\u0435 \u0442\u0440\u0435\u0431\u043e\u0432\u0430\u043d\u0438\u0435 \u0441\u0438\u0441\u0442\u0435\u043c \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438. \u041d\u0435\u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0438 \u0432 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435 \u043b\u0430\u0439\u0444\u0445\u0430\u043a\u0430 \u043f\u0440\u043e\u0441\u0442\u043e \u043c\u0435\u043d\u044f\u044e\u0442 \u0446\u0438\u0444\u0440\u0443 \u0432 \u043a\u043e\u043d\u0446\u0435. \u0422\u0430\u043a\u0430\u044f \u043f\u0440\u0430\u043a\u0442\u0438\u043a\u0430 \u0432\u044b\u0437\u044b\u0432\u0430\u043b\u0430 \u043c\u0430\u0441\u0441\u0443 \u043d\u0435\u0443\u0434\u043e\u0431\u0441\u0442\u0432. \u041e\u0434\u043d\u0430\u043a\u043e \u043b\u044e\u0434\u044f\u043c \u043f\u0440\u0438\u0445\u043e\u0434\u0438\u043b\u043e\u0441\u044c \u0442\u0435\u0440\u043f\u0435\u0442\u044c, \u0432\u0435\u0434\u044c \u044d\u0442\u043e \u0440\u0430\u0434\u0438 \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438. \u0422\u0435\u043f\u0435\u0440\u044c \u044d\u0442\u043e\u0442 \u0441\u043e\u0432\u0435\u0442 \u0441\u043e\u0432\u0435\u0440\u0448\u0435\u043d\u043d\u043e \u043d\u0435 \u0430\u043a\u0442\u0443\u0430\u043b\u0435\u043d. \u0412 \u043c\u0430\u0435 2019 \u0433\u043e\u0434\u0430 \u0434\u0430\u0436\u0435 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Microsoft [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-35582","post","type-post","status-publish","format-standard","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - 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