{"id":32662,"date":"2019-10-31T21:48:16","date_gmt":"2019-10-31T18:48:16","guid":{"rendered":"https:\/\/prohoster.info\/blog\/chto-budet-s-autentifikatsiej-i-parolyami-perevod-otcheta-javelin-sostoyanie-strogoj-autentifikatsii-s-kommentariyami\/"},"modified":"2019-10-31T21:48:16","modified_gmt":"2019-10-31T18:48:16","slug":"chto-budet-s-autentifikatsiej-i-parolyami-perevod-otcheta-javelin-sostoyanie-strogoj-autentifikatsii-s-kommentariyami","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/chto-budet-s-autentifikatsiej-i-parolyami-perevod-otcheta-javelin-sostoyanie-strogoj-autentifikatsii-s-kommentariyami","title":{"rendered":"Co se stane s autentizac\u00ed a hesly? P\u0159eklad zpr\u00e1vy Javelin \u201eStav p\u0159\u00edsn\u00e9 autentizace\u201c s koment\u00e1\u0159i","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><img decoding=\"async\" alt=\"Co se stane s autentizac\u00ed a hesly? P\u0159eklad zpr\u00e1vy Javelin \u201eStav p\u0159\u00edsn\u00e9 autentizace\u201c s koment\u00e1\u0159i\" src=\"\/wp-content\/uploads\/2019\/04\/8bf86f8c9daa411a24c4a4052f642fad.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nSpoiler z titulku zpr\u00e1vy \u201ePo\u010det p\u0159\u00edpad\u016f pou\u017e\u00edv\u00e1n\u00ed siln\u00e9 autentizace vzrostl d\u00edky nov\u00fdm hrozb\u00e1m a regula\u010dn\u00edm po\u017eadavk\u016fm.\u201c<br \/>\nV\u00fdzkumn\u00e1 spole\u010dnost \u201eJavelin Strategy &amp; Research\u201c zve\u0159ejnila zpr\u00e1vu \u201eThe State of Strong Authentication 2019\u201c (<noindex><a rel=\"nofollow\" href=\"https:\/\/1nmqmp2u9dgf3jo9centu6rq-wpengine.netdna-ssl.com\/wp-content\/uploads\/2019\/01\/The-State-of-Strong-Authentication-2019-Report.pdf\"> origin\u00e1l ve form\u00e1tu pdf si m\u016f\u017eete st\u00e1hnout zde<\/a><\/noindex>). V t\u00e9to zpr\u00e1v\u011b se uv\u00e1d\u00ed: jak\u00e9 procento americk\u00fdch a evropsk\u00fdch spole\u010dnost\u00ed pou\u017e\u00edv\u00e1 hesla (a pro\u010d jsou hesla nyn\u00ed m\u00e1lo vyu\u017e\u00edv\u00e1na); pro\u010d tak rychle roste procento pou\u017e\u00edv\u00e1n\u00ed dvoufaktorov\u00e9 autentizace na z\u00e1klad\u011b kryptografick\u00fdch token\u016f; pro\u010d jsou jednor\u00e1zov\u00e9 k\u00f3dy zas\u00edlan\u00e9 SMS pova\u017eov\u00e1ny za nebezpe\u010dn\u00e9.<\/p>\n<p>V\u0161echny, kdo se zaj\u00edmaj\u00ed o t\u00e9ma skute\u010dn\u00e9, minul\u00e9 a budouc\u00ed autentizace ve firm\u00e1ch a u\u017eivatelsk\u00fdch aplikac\u00edch \u2014 v\u00edtejte.<br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\n<b class=\"spoiler_title\">Od p\u0159ekladatele<\/b><\/p>\n<blockquote><p>Bohu\u017eel je jazyk, kter\u00fdm je tato zpr\u00e1va naps\u00e1na, dost \u201esuch\u00fd\u201c a form\u00e1ln\u00ed. A p\u011btin\u00e1sobn\u00e9 pou\u017eit\u00ed slova \u201eautentizace\u201c v jedn\u00e9 kr\u00e1tk\u00e9 v\u011bt\u011b nen\u00ed v\u00fdsledkem nezru\u010dn\u00e9ho p\u0159ekladu, ale rozmar autor\u016f. P\u0159i p\u0159ekladu mezi dv\u011bma variantami \u2014 d\u00e1t \u010dten\u00e1\u0159\u016fm text bl\u00ed\u017ee origin\u00e1lu nebo zaj\u00edmav\u011bj\u0161\u00ed variantu, jsem n\u011bkdy volil prvn\u00ed a n\u011bkdy druhou. Ale vydr\u017ete, draz\u00ed \u010dten\u00e1\u0159i, obsah zpr\u00e1vy za to stoj\u00ed.<\/p>\n<p>N\u011bkter\u00e9 bezv\u00fdznamn\u00e9 a pro vypr\u00e1v\u011bn\u00ed nepot\u0159ebn\u00e9 kusy byly vy\u0159azeny, jinak by v\u011bt\u0161ina nezvl\u00e1dla cel\u00fd text. Ti, kte\u0159\u00ed cht\u011bj\u00ed sezn\u00e1mit se se zpr\u00e1vou \u201ebez cenzury\u201c, mohou tak u\u010dinit v origin\u00e1ln\u00edm jazyce, kliknut\u00edm na odkaz.<\/p>\n<p>Bohu\u017eel auto\u0159i nejsou v\u017edy pe\u010dliv\u00ed v terminologii. Tak jednor\u00e1zov\u00e9 hesla (One Time Password \u2013 OTP) n\u011bkdy naz\u00fdvaj\u00ed \u201ehesly\u201c, jindy \u201ek\u00f3dy\u201c. S metodami autentizace je to je\u0161t\u011b hor\u0161\u00ed. Nep\u0159ipraven\u00e9mu \u010dten\u00e1\u0159i nen\u00ed v\u017edy jasn\u00e9, \u017ee \u201eautentizace s pou\u017eit\u00edm kryptografick\u00fdch kl\u00ed\u010d\u016f\u201c a \u201esiln\u00e1 autentizace\u201c jsou toto\u017en\u00e9. Sna\u017eil jsem se co nejv\u00edce unifikovat term\u00edny, nav\u00edc ve zpr\u00e1v\u011b je fragment s jejich popisem.<\/p>\n<p><b>Nicm\u00e9n\u011b je zpr\u00e1va vysoce doporu\u010dov\u00e1na k p\u0159e\u010dten\u00ed, proto\u017ee obsahuje jedine\u010dn\u00e9 v\u00fdsledky v\u00fdzkumu a spr\u00e1vn\u00e9 z\u00e1v\u011bry. <\/b><\/p>\n<p>V\u0161echny \u010d\u00edsla a fakta uveden\u00e1 bez jak\u00fdchkoli zm\u011bn, a pokud s nimi nesouhlas\u00edte, je lep\u0161\u00ed se h\u00e1dat ne s p\u0159ekladatelem, ale s autory zpr\u00e1vy. A moje koment\u00e1\u0159e (p\u0159edstaven\u00e9 jako citace, a v textu ozna\u010den\u00e9 <i>kurz\u00edvou<\/i>) jsou m\u00fdm hodnot\u00edc\u00edm n\u00e1zorem a o ka\u017ed\u00e9m z nich r\u00e1d budu diskutovat (stejn\u011b jako o kvalit\u011b p\u0159ekladu). <\/p><\/blockquote>\n<p><\/p>\n<h2>P\u0159ehled<\/h2>\n<p>\nV dne\u0161n\u00ed dob\u011b jsou pro podniky digit\u00e1ln\u00ed komunika\u010dn\u00ed kan\u00e1ly s klienty d\u016fle\u017eit\u011bj\u0161\u00ed ne\u017e kdy jindy. A i uvnit\u0159 podniku jsou komunikace mezi zam\u011bstnanci v\u00edce orientov\u00e1ny na digit\u00e1ln\u00ed prost\u0159ed\u00ed ne\u017e kdy d\u0159\u00edve. A to, jak bezpe\u010dn\u00e1 budou tato interakce, z\u00e1vis\u00ed na zvolen\u00e9m zp\u016fsobu autentizace u\u017eivatel\u016f. \u00dato\u010dn\u00edci vyu\u017e\u00edvaj\u00ed slabou autentizaci k masov\u00fdm hack\u016fm u\u017eivatelsk\u00fdch \u00fa\u010dt\u016f. V reakci na to regula\u010dn\u00ed org\u00e1ny zp\u0159\u00eds\u0148uj\u00ed standardy, aby donutily podniky l\u00e9pe chr\u00e1nit \u00fa\u010dty a \u00fadaje u\u017eivatel\u016f.<\/p>\n<p>Hrozby spojen\u00e9 s autentizac\u00ed se neomezuj\u00ed pouze na spot\u0159ebitelsk\u00e9 aplikace, \u00fato\u010dn\u00edci mohou z\u00edskat p\u0159\u00edstup i k aplikac\u00edm, kter\u00e9 funguj\u00ed uvnit\u0159 podniku. Takov\u00e1 operace jim umo\u017e\u0148uje vyd\u00e1vat se za firemn\u00ed u\u017eivatele. \u00dato\u010dn\u00edci, kte\u0159\u00ed vyu\u017e\u00edvaj\u00ed bezdr\u00e1tov\u00e9 p\u0159\u00edstupov\u00e9 body se slabou autentizac\u00ed, mohou kr\u00e1st \u00fadaje a prov\u00e1d\u011bt dal\u0161\u00ed podvodn\u00e9 aktivity. Na\u0161t\u011bst\u00ed existuj\u00ed opat\u0159en\u00ed proti tomu. P\u0159\u00edsn\u00e1 autentizace m\u016f\u017ee v\u00fdrazn\u011b sn\u00ed\u017eit riziko \u00fatoku \u00fato\u010dn\u00edka jak na spot\u0159ebitelsk\u00e9 aplikace, tak na obchodn\u00ed syst\u00e9my podnik\u016f.<\/p>\n<p>Tato studie zkoum\u00e1: jak podniky implementuj\u00ed autentizaci k ochran\u011b u\u017eivatelsk\u00fdch aplikac\u00ed a obchodn\u00edch syst\u00e9m\u016f podniku; faktory, kter\u00e9 berou v \u00favahu p\u0159i v\u00fdb\u011bru \u0159e\u0161en\u00ed pro autentizaci; roli, kterou p\u0159\u00edsn\u00e1 autentizace hraje v jejich organizac\u00edch; v\u00fdhody, kter\u00e9 tyto organizace z\u00edsk\u00e1vaj\u00ed.<\/p>\n<h2>Shrnut\u00ed<\/h2>\n<p><\/p>\n<h3> Hlavn\u00ed z\u00e1v\u011bry<\/h3>\n<p>\n<b>Od roku 2017 se v\u00fdrazn\u011b zv\u00fd\u0161il pod\u00edl vyu\u017eit\u00ed p\u0159\u00edsn\u00e9 autentizace. <\/b> S rostouc\u00edm po\u010dtem zranitelnost\u00ed, kter\u00e9 se t\u00fdkaj\u00ed tradi\u010dn\u00edch \u0159e\u0161en\u00ed pro autentizaci, organizace posiluj\u00ed sv\u00e9 autentiza\u010dn\u00ed schopnosti pomoc\u00ed siln\u00e9 autentizace. Po\u010det organizac\u00ed, kter\u00e9 pou\u017e\u00edvaj\u00ed v\u00edcefaktorovou autentizaci s vyu\u017eit\u00edm kryptografie (MFA), se od roku 2017 ztrojil v oblasti spot\u0159ebitelsk\u00fdch aplikac\u00ed a t\u00e9m\u011b\u0159 o 50 % vzrostl pro firemn\u00ed aplikace. Nejrychlej\u0161\u00ed r\u016fst je zaznamen\u00e1n v mobiln\u00ed autentizaci d\u00edky rostouc\u00ed dostupnosti biometrick\u00e9 autentizace.<\/p>\n<blockquote><p>Zde vid\u00edme ilustraci p\u0159\u00edslov\u00ed \u201edokud hrom nebouchne, chlapec se nepozve\u201c. Kdy\u017e experti varovali p\u0159ed nespolehlivost\u00ed hesel, nikdo nesp\u011bchal zav\u00e1d\u011bt dvoufaktorovou autentizaci. Jakmile hacke\u0159i za\u010dali kr\u00e1st hesla, lid\u00e9 za\u010dali zav\u00e1d\u011bt dvoufaktorovou autentizaci.<\/p>\n<p>Pravda je, \u017ee soukrom\u00e9 osoby mnohem aktivn\u011bji zav\u00e1d\u011bj\u00ed 2FA. Za prv\u00e9, tak je pro n\u011b snaz\u0161\u00ed uklidnit sv\u00e9 obavy, spol\u00e9haj\u00edce na integrovanou biometrickou autentizaci ve smartphonech, kter\u00e1 je ve skute\u010dnosti velmi nespolehliv\u00e1. Organizace v\u0161ak mus\u00ed investovat do n\u00e1kupu token\u016f a prov\u00e9st (ve skute\u010dnosti velmi jednoduch\u00e9) pr\u00e1ce na jejich zaveden\u00ed. A za druh\u00e9, o \u00fanik\u00e1ch hesel ze slu\u017eeb typu Facebook a Dropbox nepsal jen lenoch, ale o p\u0159\u00edb\u011bz\u00edch o tom, jak byly hesla kradena (a co n\u00e1sledovalo) v organizac\u00edch, IT \u0159editel\u00e9 t\u011bchto organizac\u00ed se nikomu nesd\u011bl\u00ed za \u017e\u00e1dn\u00fdch okolnost\u00ed. <\/p><\/blockquote>\n<p>\n<b>Ti, kdo nepou\u017e\u00edvaj\u00ed silnou autentizaci, podce\u0148uj\u00ed sv\u00e9 riziko pro obchod a klienty. <\/b> N\u011bkter\u00e9 organizace, kter\u00e9 v sou\u010dasnosti nepou\u017e\u00edvaj\u00ed silnou autentizaci, maj\u00ed tendenci pova\u017eovat p\u0159ihla\u0161ovac\u00ed jm\u00e9na a hesla za jednu z nejefektivn\u011bj\u0161\u00edch a nejjednodu\u0161\u0161\u00edch metod autentizace u\u017eivatel\u016f. Jin\u00e9 nevid\u00ed hodnotu digit\u00e1ln\u00edch aktiv, kter\u00e1 vlastn\u00ed. Je p\u0159itom t\u0159eba si uv\u011bdomit, \u017ee kyberzlo\u010dince zaj\u00edmaj\u00ed jak\u00e9koliv spot\u0159ebitelsk\u00e9 a obchodn\u00ed informace. Dv\u011b t\u0159etiny spole\u010dnost\u00ed, kter\u00e9 pou\u017e\u00edvaj\u00ed pouze hesla pro autentizaci sv\u00fdch zam\u011bstnanc\u016f, tak \u010din\u00ed, proto\u017ee se domn\u00edvaj\u00ed, \u017ee hesla jsou dostate\u010dn\u011b dobr\u00e1 pro typ informac\u00ed, kter\u00e9 chr\u00e1n\u00ed.<\/p>\n<p><b>Nicm\u00e9n\u011b, hesla jsou na cest\u011b \u201edo hrobu\u201c. <\/b> V uplynul\u00e9m roce se z\u00e1vislost na heslech v\u00fdrazn\u011b sn\u00ed\u017eila, jak pro spot\u0159ebitelsk\u00e9, tak pro firemn\u00ed aplikace (z 44 % na 31 % a ze 56 % na 47 %), proto\u017ee organizace roz\u0161i\u0159uj\u00ed pou\u017e\u00edv\u00e1n\u00ed tradi\u010dn\u00ed MFA a p\u0159\u00edsn\u00e9 autentizace.<br \/>\nAle pokud hodnot\u00edme situaci celkov\u011b, zraniteln\u00e9 metody autentizace st\u00e1le p\u0159etrv\u00e1vaj\u00ed. Pro u\u017eivatelskou autentizaci p\u0159ibli\u017en\u011b \u010dtvrtina organizac\u00ed vyu\u017e\u00edv\u00e1 SMS OTP (jednor\u00e1zov\u00e9 heslo) spolu s tajn\u00fdmi ot\u00e1zkami. V d\u016fsledku toho je nutn\u00e9 zav\u00e9st dodate\u010dn\u00e9 ochrann\u00e9 prost\u0159edky, co\u017e zvy\u0161uje n\u00e1klady. Pou\u017e\u00edv\u00e1n\u00ed mnohem spolehliv\u011bj\u0161\u00edch metod autentizace, jako jsou hardwarov\u00e9 kryptografick\u00e9 kl\u00ed\u010de, je daleko vz\u00e1cn\u011bj\u0161\u00ed, p\u0159ibli\u017en\u011b v 5 % organizac\u00ed.<\/p>\n<p><b>Rozv\u00edjej\u00edc\u00ed se regula\u010dn\u00ed prost\u0159ed\u00ed slibuje urychlen\u00ed zav\u00e1d\u011bn\u00ed p\u0159\u00edsn\u00e9 autentizace pro spot\u0159ebitelsk\u00e9 aplikace. <\/b> S p\u0159ijet\u00edm PSD2, stejn\u011b jako nov\u00fdch pravidel ochrany \u00fadaj\u016f v EU a v n\u011bkolika st\u00e1tech USA, jako je Kalifornie, maj\u00ed firmy pocit, \u017ee se situace st\u00e1v\u00e1 napjatou. T\u00e9m\u011b\u0159 70 % firem souhlas\u00ed s t\u00edm, \u017ee \u010del\u00ed siln\u00e9mu regula\u010dn\u00edmu tlaku na zaji\u0161t\u011bn\u00ed p\u0159\u00edsn\u00e9 autentizace pro sv\u00e9 klienty. V\u00edce ne\u017e polovina podnik\u016f se domn\u00edv\u00e1, \u017ee za n\u011bkolik let nebudou jejich metody autentizace dostate\u010dn\u00e9 pro spln\u011bn\u00ed regula\u010dn\u00edch standard\u016f.<\/p>\n<blockquote><p>Je z\u0159ejm\u00fd rozd\u00edl v p\u0159\u00edstupech rusk\u00fdch a americko-evropsk\u00fdch z\u00e1konod\u00e1rc\u016f k ochran\u011b osobn\u00edch \u00fadaj\u016f u\u017eivatel\u016f program\u016f a slu\u017eeb. Ru\u0161t\u00ed \u0159\u00edkaj\u00ed: draz\u00ed provozovatel\u00e9 slu\u017eeb, d\u011blejte si, co chcete, ale pokud v\u00e1\u0161 administr\u00e1tor unikne datab\u00e1zi, potrest\u00e1me v\u00e1s. V zahrani\u010d\u00ed \u0159\u00edkaj\u00ed: mus\u00edte zav\u00e9st soubor opat\u0159en\u00ed, kter\u00e1 <b>neumo\u017en\u00ed<\/b> uniknut\u00ed datab\u00e1ze. Proto tam naplno zav\u00e1d\u011bj\u00ed po\u017eadavky na existenci p\u0159\u00edsn\u00e9 dvoufaktorov\u00e9 autentizace.<br \/>\nPravda, v\u016fbec nen\u00ed jist\u00e9, \u017ee se na\u0161e legislativn\u00ed ma\u0161in\u00e9rie v jednom kr\u00e1sn\u00e9m okam\u017eiku neprobere a nezohledn\u00ed z\u00e1padn\u00ed zku\u0161enosti. Tehdy se uk\u00e1\u017ee, \u017ee v\u0161ichni budou muset implementovat 2FA, odpov\u00eddaj\u00edc\u00ed rusk\u00fdm kryptografick\u00fdm standard\u016fm, a to urgentn\u011b.\n<\/p><\/blockquote>\n<p>\n<b>Vytvo\u0159en\u00ed spolehliv\u00e9ho z\u00e1kladu autentizace umo\u017e\u0148uje firm\u00e1m p\u0159esunout d\u016fraz z uspokojov\u00e1n\u00ed regula\u010dn\u00edch po\u017eadavk\u016f na uspokojov\u00e1n\u00ed pot\u0159eb z\u00e1kazn\u00edk\u016f. <\/b> Pro organizace, kter\u00e9 st\u00e1le pou\u017e\u00edvaj\u00ed jednoduch\u00e1 hesla nebo z\u00edsk\u00e1vaj\u00ed k\u00f3dy prost\u0159ednictv\u00edm SMS, bude nejd\u016fle\u017eit\u011bj\u0161\u00edm faktorem p\u0159i v\u00fdb\u011bru metody autentizace spln\u011bn\u00ed regula\u010dn\u00edch po\u017eadavk\u016f. Naproti tomu firmy, kter\u00e9 ji\u017e pou\u017e\u00edvaj\u00ed p\u0159\u00edsnou autentizaci, se mohou zam\u011b\u0159it na v\u00fdb\u011br metod autentizace, kter\u00e9 zvy\u0161uj\u00ed loajalitu z\u00e1kazn\u00edk\u016f.<\/p>\n<p><b>P\u0159i v\u00fdb\u011bru metody firemn\u00ed autentizace uvnit\u0159 podniku ji\u017e regula\u010dn\u00ed po\u017eadavky nejsou v\u00fdznamn\u00fdm faktorem. <\/b> V tomto p\u0159\u00edpad\u011b je mnohem d\u016fle\u017eit\u011bj\u0161\u00ed jednoduchost integrace (32 %) a n\u00e1klady (26 %). <\/p>\n<p><b>V dob\u011b phishingu mohou \u00fato\u010dn\u00edci vyu\u017e\u00edvat firemn\u00ed elektronickou po\u0161tu k podvod\u016fm,<\/b> aby podvodn\u011b z\u00edskali p\u0159\u00edstup k dat\u016fm, \u00fa\u010dt\u016fm (s p\u0159\u00edslu\u0161n\u00fdmi pr\u00e1vy) a dokonce p\u0159esv\u011bd\u010dili zam\u011bstnance, aby provedli p\u0159evod pen\u011bz na jejich \u00fa\u010det. Proto by m\u011bly b\u00fdt \u00fa\u010dty firemn\u00ed po\u0161ty a port\u00e1l\u016f zvl\u00e1\u0161\u0165 dob\u0159e chr\u00e1n\u011bny.<\/p>\n<p><b>Google pos\u00edlil svou ochranu zaveden\u00edm p\u0159\u00edsn\u00e9 autentizace.<\/b> P\u0159ed v\u00edce ne\u017e dv\u011bma lety Google zve\u0159ejnil zpr\u00e1vu o implementaci dvoufaktorov\u00e9 autentizace zalo\u017een\u00e9 na kryptografick\u00fdch bezpe\u010dnostn\u00edch kl\u00ed\u010d\u00edch podle standardu FIDO U2F, p\u0159i\u010dem\u017e sd\u011blil ohromuj\u00edc\u00ed v\u00fdsledky. Podle \u00fadaj\u016f spole\u010dnosti nebylo proti v\u00edce ne\u017e 85 000 zam\u011bstnanc\u016f provedeno ani jedno phishingov\u00e9 \u00fatok. <\/p>\n<h3>Doporu\u010den\u00ed<\/h3>\n<p>\n<b>Zav\u00e1d\u011bjte p\u0159\u00edsnou autentizaci pro mobiln\u00ed a online aplikace. <\/b> V\u00edcefaktorov\u00e1 autentizace zalo\u017een\u00e1 na kryptografick\u00fdch kl\u00ed\u010d\u00edch mnohem l\u00e9pe chr\u00e1n\u00ed p\u0159ed hackov\u00e1n\u00edm ne\u017e tradi\u010dn\u00ed metody MFA. Nav\u00edc pou\u017eit\u00ed kryptografick\u00fdch kl\u00ed\u010d\u016f je mnohem pohodln\u011bj\u0161\u00ed, proto\u017ee nen\u00ed t\u0159eba pou\u017e\u00edvat a p\u0159ed\u00e1vat dal\u0161\u00ed informace \u2013 hesla, jednor\u00e1zov\u00e9 k\u00f3dy nebo biometrick\u00e9 \u00fadaje z u\u017eivatelsk\u00e9ho za\u0159\u00edzen\u00ed na server autentizace. D\u00e1le standardizace autentiza\u010dn\u00edch protokol\u016f umo\u017e\u0148uje mnohem snadn\u011bji zav\u00e1d\u011bt nov\u00e9 metody autentizace s t\u00edm, jak se objevuj\u00ed, \u010d\u00edm\u017e sni\u017euje n\u00e1klady na pou\u017eit\u00ed a chr\u00e1n\u00ed p\u0159ed slo\u017eit\u011bj\u0161\u00edmi podvodn\u00fdmi sch\u00e9maty.<\/p>\n<p><b>P\u0159ipravte se na \u00fastup jednor\u00e1zov\u00fdch hesel (OTP). <\/b> Zranitelnosti, kter\u00e9 jsou vlastn\u00ed OTP, se st\u00e1vaj\u00ed st\u00e1le z\u0159eteln\u011bj\u0161\u00edmi v situaci, kdy kyberzlo\u010dinci pou\u017e\u00edvaj\u00ed soci\u00e1ln\u00ed in\u017een\u00fdrstv\u00ed, klonov\u00e1n\u00ed smartphon\u016f a malware k ohro\u017een\u00ed t\u011bchto autentiza\u010dn\u00edch prost\u0159edk\u016f. A pokud maj\u00ed OTP v n\u011bkter\u00fdch p\u0159\u00edpadech ur\u010dit\u00e9 v\u00fdhody, pak pouze z hlediska univerz\u00e1ln\u00ed dostupnosti pro v\u0161echny u\u017eivatele, nikoli z pohledu bezpe\u010dnosti.<\/p>\n<blockquote><p>Nelze si nev\u0161imnout, \u017ee z\u00edsk\u00e1n\u00ed k\u00f3d\u016f prost\u0159ednictv\u00edm SMS nebo push ozn\u00e1men\u00ed, stejn\u011b jako generov\u00e1n\u00ed k\u00f3d\u016f pomoc\u00ed aplikac\u00ed pro smartphony \u2014 to jsou pr\u00e1v\u011b ty jedno\u00fa\u010delov\u00e9 hesla (OTP), k jejich\u017e \u00fapadku n\u00e1m doporu\u010duj\u00ed se p\u0159ipravit. Z technick\u00e9ho hlediska je to velmi rozumn\u00e9 \u0159e\u0161en\u00ed, proto\u017ee jen m\u00e1lokter\u00fd podvodn\u00edk se nesna\u017e\u00ed vym\u00e1mit jedno\u00fa\u010delov\u00e9 heslo od naivn\u00edho u\u017eivatele. Ale mysl\u00edm, \u017ee v\u00fdrobci t\u011bchto syst\u00e9m\u016f se budou do posledn\u00edho sna\u017eit udr\u017eet um\u00edraj\u00edc\u00ed technologii. <\/p><\/blockquote>\n<p><b>Pou\u017eijte p\u0159\u00edsnou autentizaci jako marketingov\u00fd n\u00e1stroj k pos\u00edlen\u00ed d\u016fv\u011bry z\u00e1kazn\u00edk\u016f. <\/b> P\u0159\u00edsn\u00e1 autentizace m\u016f\u017ee nejen zlep\u0161it skute\u010dnou bezpe\u010dnost va\u0161eho podnik\u00e1n\u00ed. Informov\u00e1n\u00ed z\u00e1kazn\u00edk\u016f o tom, \u017ee va\u0161e firma pou\u017e\u00edv\u00e1 p\u0159\u00edsnou autentizaci, m\u016f\u017ee pos\u00edlit ve\u0159ejn\u00e9 vn\u00edm\u00e1n\u00ed bezpe\u010dnosti t\u00e9to firmy \u2014 co\u017e je d\u016fle\u017eit\u00fd faktor, kdy\u017e existuje v\u00fdrazn\u00e1 popt\u00e1vka z\u00e1kazn\u00edk\u016f po spolehliv\u00fdch metod\u00e1ch autentizace.<\/p>\n<p><b>Prove\u010fte d\u016fkladnou inventarizaci a hodnocen\u00ed d\u016fle\u017eitosti podnikov\u00fdch dat a chra\u0148te je v souladu s jejich d\u016fle\u017eitost\u00ed. <\/b> Dokonce i data s n\u00edzkou \u00farovn\u00ed rizika, jako jsou kontaktn\u00ed informace z\u00e1kazn\u00edk\u016f (<i>ne, opravdu, v zpr\u00e1v\u011b je naps\u00e1no \"low-risk\", je velmi divn\u00e9, \u017ee podce\u0148uj\u00ed v\u00fdznam t\u011bchto informac\u00ed<\/i>), mohou podvodn\u00edk\u016fm p\u0159in\u00e1\u0161et zna\u010dnou hodnotu a zp\u016fsobit spole\u010dnosti probl\u00e9my. <\/p>\n<p><b>Pou\u017e\u00edvejte p\u0159\u00edsnou autentizaci ve firm\u011b. <\/b> N\u011bkter\u00e9 syst\u00e9my jsou nejatraktivn\u011bj\u0161\u00edmi c\u00edli pro zlo\u010dince. Pat\u0159\u00ed sem jak intern\u00ed, tak na internet p\u0159ipojen\u00e9 syst\u00e9my, jako je \u00fa\u010detn\u00ed software nebo \u00falo\u017ei\u0161t\u011b podnikov\u00fdch dat. P\u0159\u00edsn\u00e1 autentizace zabra\u0148uje \u00fato\u010dn\u00edk\u016fm z\u00edskat neopr\u00e1vn\u011bn\u00fd p\u0159\u00edstup a tak\u00e9 umo\u017e\u0148uje p\u0159esn\u011b ur\u010dit, kter\u00fd zam\u011bstnanec provedl \u0161kodlivou \u010dinnost.<\/p>\n<h2> Co je to siln\u00e1 autentizace? <\/h2>\n<p>\nP\u0159i pou\u017eit\u00ed siln\u00e9 autentizace se k ov\u011b\u0159en\u00ed identity u\u017eivatele pou\u017e\u00edv\u00e1 n\u011bkolik metod nebo faktor\u016f:<\/p>\n<ul>\n<li><b>Faktor znalosti:<\/b> sd\u00edlen\u00e9 tajemstv\u00ed mezi u\u017eivatelem a ov\u011b\u0159ovac\u00ed instituc\u00ed (nap\u0159. hesla, odpov\u011bdi na tajn\u00e9 ot\u00e1zky atd.)<\/li>\n<li><b>Faktor dr\u017een\u00ed:<\/b> za\u0159\u00edzen\u00ed, kter\u00e9 m\u00e1 pouze u\u017eivatel (nap\u0159. mobiln\u00ed za\u0159\u00edzen\u00ed, kryptografick\u00fd kl\u00ed\u010d atd.)<\/li>\n<li><b>Faktor inherentnosti:<\/b> fyzick\u00e9 (\u010dasto biometrick\u00e9) charakteristiky u\u017eivatele (nap\u0159. otisk prstu, obraz duhovky oka, hlas, chov\u00e1n\u00ed atd.)<\/li>\n<\/ul>\n<p>\nPot\u0159eba p\u0159ekonat n\u011bkolik faktor\u016f v\u00fdrazn\u011b zvy\u0161uje pravd\u011bpodobnost ne\u00fasp\u011bchu pro \u00fato\u010dn\u00edky, proto\u017ee obch\u00e1zen\u00ed nebo podvod r\u016fzn\u00fdch faktor\u016f vy\u017eaduje pou\u017eit\u00ed n\u011bkolika typ\u016f \u00fato\u010dn\u00fdch taktik, pro ka\u017ed\u00fd faktor zvl\u00e1\u0161\u0165.<\/p>\n<blockquote><p> Nap\u0159\u00edklad u dvoufaktorov\u00e9 autentizace \"heslo + smartphone\" m\u016f\u017ee \u00fato\u010dn\u00edk prov\u00e9st autentizaci t\u00edm, \u017ee odposlouch\u00e1 heslo u\u017eivatele a vytvo\u0159\u00ed p\u0159esnou softwarovou kopii jeho smartphonu. To je mnohem slo\u017eit\u011bj\u0161\u00ed ne\u017e jen ukr\u00e1st heslo. <\/p>\n<p>Pokud je v\u0161ak pro dvoufaktorovou autentizaci pou\u017eito heslo a kryptografick\u00fd token, tak mo\u017enost kop\u00edrov\u00e1n\u00ed tu nefunguje \u2013 token nen\u00ed mo\u017en\u00e9 duplikovat. Podvodn\u00edk bude muset nen\u00e1padn\u011b ukr\u00e1st token od u\u017eivatele. Pokud si u\u017eivatel v\u010das v\u0161imne ztr\u00e1ty a informuje spr\u00e1vce, token bude zablokov\u00e1n a \u00fasil\u00ed podvodn\u00edka bude zbyte\u010dn\u00e9. Proto je pro faktor dr\u017een\u00ed d\u016fle\u017eit\u00e9 pou\u017e\u00edvat specializovan\u00e1 zabezpe\u010den\u00e1 za\u0159\u00edzen\u00ed (tokeny), nikoli za\u0159\u00edzen\u00ed ur\u010den\u00e1 pro b\u011b\u017en\u00e9 pou\u017eit\u00ed (smartphony).<\/p>\n<p>Pou\u017eit\u00ed v\u0161ech t\u0159\u00ed faktor\u016f ud\u011bl\u00e1 metodu autentizace dostate\u010dn\u011b n\u00e1kladnou p\u0159i zav\u00e1d\u011bn\u00ed a dostate\u010dn\u011b nepraktickou p\u0159i pou\u017e\u00edv\u00e1n\u00ed. Proto se obvykle pou\u017e\u00edvaj\u00ed dva faktory z t\u0159ech.<\/p>\n<p>Podrobn\u011bji jsou principy dvoufaktorov\u00e9 autentizace pops\u00e1ny <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/aktiv-company\/blog\/436926\/\">zde<\/a><\/noindex>, v bloku \u201eJak funguje dvoufaktorov\u00e1 autentizace\u201c. <\/p><\/blockquote>\n<p>\n<b>Je d\u016fle\u017eit\u00e9 poznamenat, \u017ee alespo\u0148 jeden z faktor\u016f autentizace, pou\u017e\u00edvan\u00fd p\u0159i siln\u00e9 autentizaci, by m\u011bl pou\u017e\u00edvat kryptografii na b\u00e1zi ve\u0159ejn\u00e9ho kl\u00ed\u010de.<\/b><\/p>\n<p>Striktn\u00ed autentizace poskytuje mnohem siln\u011bj\u0161\u00ed ochranu ne\u017e jednofaktorov\u00e1 autentizace zalo\u017een\u00e1 na tradi\u010dn\u00edch heslech a konven\u010dn\u00edm MFA. Hesla je mo\u017en\u00e9 odhalit nebo zachytit pomoc\u00ed keylogger\u016f, phishingov\u00fdch str\u00e1nek nebo \u00fatok\u016f zalo\u017een\u00fdch na soci\u00e1ln\u00edm in\u017een\u00fdrstv\u00ed (kdy obelhan\u00e1 ob\u011b\u0165 sama sd\u011bl\u00ed sv\u00e9 heslo). A majitel hesla nebude m\u00edt tu\u0161en\u00ed, \u017ee byl ob\u011bt\u00ed kr\u00e1de\u017ee. Tradi\u010dn\u00ed MFA (zahrnuj\u00edc\u00ed OTP k\u00f3dy, vazbu na smartphone nebo SIM kartu) tak\u00e9 m\u016f\u017ee b\u00fdt relativn\u011b snadno poru\u0161ena, proto\u017ee nen\u00ed zalo\u017eena na kryptografii ve\u0159ejn\u00fdch kl\u00ed\u010d\u016f.<i>mimochodem, existuje mnoho p\u0159\u00edklad\u016f, kdy podvodn\u00edci pomoc\u00ed t\u011bchto soci\u00e1ln\u00edch in\u017een\u00fdrsk\u00fdch technik p\u0159esv\u011bd\u010dili u\u017eivatele, aby jim sd\u011blili jednor\u00e1zov\u00e9 heslo.<\/i>).<\/p>\n<p>Na\u0161t\u011bst\u00ed od minul\u00e9ho roku pou\u017e\u00edv\u00e1n\u00ed striktn\u00ed autentizace a tradi\u010dn\u00edho MFA nab\u00edr\u00e1 na s\u00edle jak v oblasti spot\u0159ebitel\u016f, tak i v korpor\u00e1tn\u00edch aplikac\u00edch. Pou\u017e\u00edv\u00e1n\u00ed striktn\u00ed autentizace v u\u017eivatelsk\u00fdch aplikac\u00edch vzrostlo obzvl\u00e1\u0161\u0165 rychle. Zat\u00edmco v roce 2017 ji vyu\u017e\u00edvalo pouh\u00fdch 5 % firem, v roce 2018 u\u017e t\u0159ikr\u00e1t v\u00edce \u2013 16 %. To lze vysv\u011btlit zv\u00fd\u0161enou dostupnost\u00ed token\u016f podporuj\u00edc\u00edch algoritmy kryptografie s ve\u0159ejn\u00fdmi kl\u00ed\u010di (Public Key Cryptography \u2014 PKC). Krom\u011b toho p\u0159\u00edsn\u011bj\u0161\u00ed tlak evropsk\u00fdch regul\u00e1tor\u016f po p\u0159ijet\u00ed nov\u00fdch pravidel ochrany informac\u00ed, jako jsou PSD2 a GDPR, m\u011blo siln\u00fd efekt i za hranicemi Evropy.<i>v\u010detn\u011b Ruska.<\/i>).<\/p>\n<p><img decoding=\"async\" alt=\"Co se stane s autentizac\u00ed a hesly? P\u0159eklad zpr\u00e1vy Javelin \u201eStav p\u0159\u00edsn\u00e9 autentizace\u201c s koment\u00e1\u0159i\" src=\"\/wp-content\/uploads\/2019\/04\/a94d3015f440fe2b98a56cc5c91a2721.png\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<blockquote><p>Pod\u00edvejme se bl\u00ed\u017ee na tato \u010d\u00edsla. Jak vid\u00edme, procento jednotlivc\u016f pou\u017e\u00edvaj\u00edc\u00edch v\u00edcestup\u0148ovou autentizaci vzrostlo v pr\u016fb\u011bhu roku o \u00factyhodn\u00fdch 11 %. A to se zjevn\u011b stalo na \u00fakor p\u0159\u00edznivc\u016f hesel, proto\u017ee \u010d\u00edsla t\u011bch, kte\u0159\u00ed v\u011b\u0159\u00ed v bezpe\u010dnost Push notifikac\u00ed, SMS a biometri\u00ed z\u016fstala beze zm\u011bny.<\/p>\n<p>Situace s dvoufaktorovou autentizac\u00ed pro korpor\u00e1tn\u00ed pou\u017eit\u00ed v\u0161ak nen\u00ed tak r\u016f\u017eov\u00e1. Za prv\u00e9, podle zpr\u00e1vy pouze 5 % zam\u011bstnanc\u016f p\u0159e\u0161lo z heslov\u00e9 autentizace na tokeny. A za druh\u00e9, do\u0161lo k 4 % zv\u00fd\u0161en\u00ed po\u010dtu t\u011bch, kte\u0159\u00ed v korpor\u00e1tn\u00ed sf\u00e9\u0159e pou\u017e\u00edvaj\u00ed alternativn\u00ed mo\u017enosti MFA.<\/p>\n<p>Zkus\u00edm se st\u00e1t analytikem a pod\u011blit se o sv\u016fj n\u00e1zor. Ve st\u0159edu digit\u00e1ln\u00edho sv\u011bta jednotliv\u00fdch u\u017eivatel\u016f stoj\u00ed smartphone. Nen\u00ed tedy p\u0159ekvapuj\u00edc\u00ed, \u017ee v\u011bt\u0161ina lid\u00ed vyu\u017e\u00edv\u00e1 mo\u017enosti, kter\u00e9 jim za\u0159\u00edzen\u00ed nab\u00edz\u00ed \u2013 biometrickou autentizaci, SMS a Push ozn\u00e1men\u00ed, stejn\u011b jako jednor\u00e1zov\u00e9 hesla generovan\u00e1 aplikacemi p\u0159\u00edmo na smartphonu. O bezpe\u010dnosti a spolehlivosti p\u0159i pou\u017e\u00edv\u00e1n\u00ed t\u011bchto zn\u00e1m\u00fdch n\u00e1stroj\u016f lid\u00e9 obvykle nep\u0159em\u00fd\u0161lej\u00ed.<\/p>\n<p>Pr\u00e1v\u011b proto procento u\u017eivatel\u016f primitivn\u00edch \u201etradi\u010dn\u00edch\u201c faktor\u016f autentizace z\u016fst\u00e1v\u00e1 nezm\u011bn\u011bno. Naproti tomu ti, kdo d\u0159\u00edve pou\u017e\u00edvali hesla, ch\u00e1pou, jak velk\u00e9 riziko podstupuj\u00ed, a p\u0159i v\u00fdb\u011bru nov\u00e9ho faktoru autentizace se rozhoduj\u00ed pro ten nejnov\u011bj\u0161\u00ed a nejbezpe\u010dn\u011bj\u0161\u00ed \u2013 kryptografick\u00fd token.<\/p>\n<p>Co se t\u00fd\u010de korpor\u00e1tn\u00edho trhu, zde je d\u016fle\u017eit\u00e9 pochopit, do jak\u00e9ho syst\u00e9mu se autentizace prov\u00e1d\u00ed. Pokud se prov\u00e1d\u00ed p\u0159ihl\u00e1\u0161en\u00ed do dom\u00e9ny Windows, pou\u017e\u00edvaj\u00ed se kryptografick\u00e9 tokeny. Mo\u017enosti jejich vyu\u017eit\u00ed pro 2FA jsou ji\u017e zakotveny jak ve Windows, tak v Linuxu, zat\u00edmco alternativn\u00ed varianty jsou realizovateln\u00e9 dlouho a slo\u017eit\u011b. A m\u00e1me zde migraci 5 % z hesel na tokeny.<\/p>\n<p>Implementace 2FA v korpor\u00e1tn\u00edm informa\u010dn\u00edm syst\u00e9mu velmi z\u00e1vis\u00ed na kvalifikaci v\u00fdvoj\u00e1\u0159\u016f. V\u00fdvoj\u00e1\u0159\u016fm je mnohem snaz\u0161\u00ed vz\u00edt hotov\u00e9 moduly pro generaci jednor\u00e1zov\u00fdch hesel, ne\u017e se zab\u00fdvat fungov\u00e1n\u00edm kryptografick\u00fdch algoritm\u016f. A v\u00fdsledkem je, \u017ee i nesm\u00edrn\u011b kritick\u00e9 na bezpe\u010dnost aplikace, jako jsou syst\u00e9my Single Sign-On nebo Privileged Access Management, pou\u017e\u00edvaj\u00ed OTP jako druh\u00fd faktor. <\/p><\/blockquote>\n<h2> Mnoho zranitelnost\u00ed v tradi\u010dn\u00edch metod\u00e1ch autentizace<\/h2>\n<p>\nI kdy\u017e mnoho organizac\u00ed z\u016fst\u00e1v\u00e1 z\u00e1visl\u00fdch na zastaral\u00fdch jednofaktorov\u00fdch syst\u00e9mech, zranitelnosti v tradi\u010dn\u00ed v\u00edcestup\u0148ov\u00e9 autentizaci se st\u00e1vaj\u00ed st\u00e1le v\u00edce z\u0159ejm\u00fdmi. Jednor\u00e1zov\u00e1 hesla obvykle o d\u00e9lce od \u0161esti do osmi znak\u016f, doru\u010dovan\u00e1 prost\u0159ednictv\u00edm SMS, z\u016fst\u00e1vaj\u00ed nejroz\u0161\u00ed\u0159en\u011bj\u0161\u00ed formou autentizace (samoz\u0159ejm\u011b vedle faktoru znalosti hesla). A pokud se v popul\u00e1rn\u00edch m\u00e9di\u00edch opakuj\u00ed slova \u201edvoufaktorov\u00e1 autentizace\u201c nebo \u201edvoustup\u0148ov\u00e1 kontrola\u201c, t\u00e9m\u011b\u0159 v\u017edy se vztahuj\u00ed na autentizaci pomoc\u00ed jednor\u00e1zov\u00fdch hesel SMS.<\/p>\n<blockquote><p>Autor se zde trochu m\u00fdl\u00ed. Odes\u00edl\u00e1n\u00ed jednor\u00e1zov\u00fdch hesel prost\u0159ednictv\u00edm SMS nikdy nebylo dvoufaktorovou authentikac\u00ed. To je \u010dist\u011b druh\u00fd krok dvoustup\u0148ov\u00e9 authentikace, kde prvn\u00edm krokem je zad\u00e1n\u00ed u\u017eivatelsk\u00e9ho jm\u00e9na a hesla.\n<\/p><\/blockquote>\n<p>\nV roce 2016 N\u00e1rodn\u00ed institut standard\u016f a technologi\u00ed (NIST) aktualizoval sv\u00e1 pravidla autentizace, aby vylou\u010dil pou\u017e\u00edv\u00e1n\u00ed jednor\u00e1zov\u00fdch hesel zas\u00edlan\u00fdch prost\u0159ednictv\u00edm SMS. Tato pravidla v\u0161ak byla po protestech v oboru zna\u010dn\u011b zm\u00edrn\u011bna.<\/p>\n<blockquote><p>Tak\u017ee sledujeme d\u011bn\u00ed. Americk\u00fd regul\u00e1tor spravedliv\u011b uzn\u00e1v\u00e1, \u017ee zastaral\u00e1 technologie nen\u00ed schopna zajistit bezpe\u010dnost u\u017eivatel\u016f a zav\u00e1d\u00ed nov\u00e9 standardy. Standardy, kter\u00e9 maj\u00ed chr\u00e1nit u\u017eivatele online a mobiln\u00edch aplikac\u00ed (v\u010detn\u011b bankovn\u00edch). Odv\u011btv\u00ed zva\u017euje, kolik pen\u011bz bude muset vynalo\u017eit na n\u00e1kup skute\u010dn\u011b spolehliv\u00fdch kryptografick\u00fdch token\u016f, na \u00fapravy aplikac\u00ed, na nasazen\u00ed infrastruktury ve\u0159ejn\u00fdch kl\u00ed\u010d\u016f a \"stav\u00ed se na zadn\u00ed\". Na jedn\u00e9 stran\u011b byli u\u017eivatel\u00e9 p\u0159esv\u011bd\u010dov\u00e1ni o spolehlivosti jednor\u00e1zov\u00fdch hesel, na druh\u00e9 stran\u011b prob\u00edhaly \u00fatoky na NIST. V d\u016fsledku toho byl standard zm\u00edrn\u011bn a po\u010det hacknut\u00ed, kr\u00e1de\u017e\u00ed hesel (a pen\u011bz z bankovn\u00edch aplikac\u00ed) prudce vzrostl. Na druhou stranu se pr\u016fmysl nemusel p\u0159\u00edli\u0161 investovat. <\/p><\/blockquote>\n<p>\nOd t\u00e9 doby se slabosti SMS OTP staly z\u0159eteln\u011bj\u0161\u00edmi. Podvodn\u00edci pou\u017e\u00edvaj\u00ed r\u016fzn\u00e9 zp\u016fsoby, jak kompromitovat SMS zpr\u00e1vy:<\/p>\n<ul>\n<li><b> Duplikace SIM karty. <\/b> \u00dato\u010dn\u00edci vytv\u00e1\u0159ej\u00ed kopii SIM <i>(s pomoc\u00ed zam\u011bstnanc\u016f mobiln\u00edho oper\u00e1tora, nebo samostatn\u011b pomoc\u00ed speci\u00e1ln\u00edho softwarov\u00e9ho a hardwarov\u00e9ho vybaven\u00ed<\/i>). V jednom obzvl\u00e1\u0161\u0165 zn\u00e1m\u00e9m p\u0159\u00edpad\u011b dokonce hacke\u0159i dok\u00e1zali kompromitovat \u00fa\u010det AT&amp;T investora kryptom\u011bn Michaela Terpina a ukr\u00e1st t\u00e9m\u011b\u0159 24 milion\u016f dolar\u016f v kryptom\u011bn\u00e1ch. V d\u016fsledku toho Terpin prohl\u00e1sil, \u017ee AT&amp;T neslo vinu za slab\u00e1 ov\u011b\u0159ovac\u00ed opat\u0159en\u00ed, kter\u00e1 vedla k duplikaci SIM karty.<br \/>\n<blockquote><p>\u00da\u017easn\u00e1 logika. To znamen\u00e1, \u017ee za to m\u016f\u017ee opravdu jen AT&amp;T? Ne, vinu mobiln\u00edho oper\u00e1tora na tom, \u017ee prodejci v prodejn\u011b vydali kopii SIM karty, nelze pop\u0159\u00edt. A co autentifika\u010dn\u00ed syst\u00e9m kryptom\u011bnov\u00e9 burzy? Pro\u010d nepou\u017eili spolehliv\u00e9 kryptografick\u00e9 tokeny? Bylo jim l\u00edto pen\u011bz na implementaci? A s\u00e1m Michael nen\u00ed vinen? Pro\u010d netrval na zm\u011bn\u011b mechanismu autentizace nebo nepou\u017e\u00edval pouze burzy, kter\u00e9 zaji\u0161\u0165uj\u00ed dvouf\u00e1zovou autentizaci zalo\u017eenou na kryptografick\u00fdch tokenech?<\/p>\n<p>Zaveden\u00ed skute\u010dn\u011b spolehliv\u00fdch metod autentizace se zpo\u017e\u010fuje pr\u00e1v\u011b kv\u016fli tomu, \u017ee p\u0159ed hackem projevuj\u00ed u\u017eivatel\u00e9 ohromnou lehkomyslnost, a po n\u011bm obvi\u0148uj\u00ed ve sv\u00fdch ne\u0161t\u011bst\u00edch ka\u017ed\u00e9ho a cokoliv, krom\u011b zastaral\u00fdch a \u201ed\u00edrav\u00fdch\u201c technologi\u00ed autentizace.<\/p><\/blockquote>\n<\/li>\n<li><b>Malware.<\/b> Jednou z nejran\u011bj\u0161\u00edch funkc\u00ed mobiln\u00edho malwaru bylo zachycov\u00e1n\u00ed a p\u0159epos\u00edl\u00e1n\u00ed textov\u00fdch zpr\u00e1v \u00fato\u010dn\u00edk\u016fm. Tak\u00e9 \u00fatoky \u201e\u010dlov\u011bk v prohl\u00ed\u017ee\u010di\u201c a \u201e\u010dlov\u011bk uprost\u0159ed\u201c mohou zachycovat jednor\u00e1zov\u00e9 hesla, kdy\u017e jsou zad\u00e1v\u00e1na na infikovan\u00fdch p\u0159enosn\u00fdch nebo stoln\u00edch za\u0159\u00edzen\u00edch.<br \/>\n<blockquote><p>Kdy\u017e aplikace Sberbank ve va\u0161em chytr\u00e9m telefonu blik\u00e1 zelenou ikonkou v li\u0161t\u011b stavu, tak\u00e9 hled\u00e1 \u201emalware\u201c na va\u0161em telefonu. C\u00edlem t\u00e9to akce je prom\u011bnit ned\u016fv\u011bryhodn\u00e9 prost\u0159ed\u00ed typick\u00e9ho chytr\u00e9ho telefonu na, alespo\u0148 \u010d\u00e1ste\u010dn\u011b, d\u016fv\u011bryhodn\u00e9.<br \/>\nMimochodem, chytr\u00fd telefon, jako zcela ned\u016fv\u011bryhodn\u00e9 za\u0159\u00edzen\u00ed, na kter\u00e9m m\u016f\u017ee b\u011b\u017eet cokoliv \u2013 to je dal\u0161\u00ed d\u016fvod pro pou\u017eit\u00ed pro autentizaci <b>pouze hardwarov\u00e9 tokeny<\/b>, kter\u00e9 jsou chr\u00e1n\u011bny a zbaveny vir\u016f a trojsk\u00fdch kon\u00ed.<\/p><\/blockquote>\n<\/li>\n<li><b>Soci\u00e1ln\u00ed in\u017een\u00fdrstv\u00ed.<\/b> Kdy\u017e jsou podvodn\u00edk\u016fm zn\u00e1my jednor\u00e1zov\u00e9 hesla p\u0159es SMS, mohou p\u0159\u00edmo kontaktovat ob\u011b\u0165, p\u0159edst\u00edraj\u00edc\u00ed d\u016fv\u011bryhodnou organizaci, jako je jej\u00ed banka nebo \u00fav\u011brov\u00e1 unie, aby obelstili ob\u011b\u0165 a donutily ji poskytnout pr\u00e1v\u011b obdr\u017een\u00fd k\u00f3d.<br \/>\n<blockquote><p>S t\u00edmto typem podvodu jsem se osobn\u011b setkal ji\u017e n\u011bkolikr\u00e1t, nap\u0159\u00edklad p\u0159i pokusu n\u011bco prodat na popul\u00e1rn\u00ed internetov\u00e9 tr\u017ei\u0161t\u011b. S\u00e1m jsem si dost u\u017eil s podvodn\u00edkem, kter\u00fd se m\u011b sna\u017eil oklamat. Bohu\u017eel v\u0161ak pravideln\u011b \u010dtu v novink\u00e1ch, jak se dal\u0161\u00ed ob\u011b\u0165 podvodn\u00edk\u016f \"nezamyslela\", sd\u011blila ov\u011b\u0159ovac\u00ed k\u00f3d a p\u0159i\u0161la o velkou \u010d\u00e1stku. A to v\u0161echno jen proto, \u017ee bank\u00e1m se prost\u011b nechce zav\u00e1d\u011bt kryptografick\u00e9 tokeny do sv\u00fdch aplikac\u00ed. V\u017edy\u0165 pokud se n\u011bco stane, tak za to \"si mohou z\u00e1kazn\u00edci sami\".<\/p><\/blockquote>\n<\/li>\n<\/ul>\n<p>\nA\u010dkoliv alternativn\u00ed metody doru\u010dov\u00e1n\u00ed jednor\u00e1zov\u00fdch hesel mohou zm\u00edrnit n\u011bkter\u00e9 zranitelnosti t\u00e9to metody autentizace, jin\u00e9 zranitelnosti p\u0159etrv\u00e1vaj\u00ed. Autonomn\u00ed aplikace pro generaci k\u00f3d\u016f p\u0159edstavuj\u00ed nejlep\u0161\u00ed ochranu proti odposlechu, proto\u017ee ani \u0161kodliv\u00e9 programy nemohou p\u0159\u00edmo interagovat s gener\u00e1torem k\u00f3d\u016f (<i>Opravdu? Autor zpr\u00e1vy zapomn\u011bl na vzd\u00e1len\u00e9 ovl\u00e1d\u00e1n\u00ed?<\/i>), ale OTP mohou b\u00fdt st\u00e1le zachycena p\u0159i zad\u00e1v\u00e1n\u00ed v prohl\u00ed\u017ee\u010di (<i>nap\u0159\u00edklad pomoc\u00ed keyloggeru<\/i>), p\u0159es hacknutou mobiln\u00ed aplikaci; mohou b\u00fdt tak\u00e9 z\u00edsk\u00e1na p\u0159\u00edmo od u\u017eivatele pomoc\u00ed soci\u00e1ln\u00edho in\u017een\u00fdrstv\u00ed.<br \/>\nPou\u017eit\u00ed n\u011bkolika n\u00e1stroj\u016f pro hodnocen\u00ed rizik, jako je rozpozn\u00e1v\u00e1n\u00ed za\u0159\u00edzen\u00ed (<i>identifikace pokus\u016f o prov\u00e1d\u011bn\u00ed operac\u00ed z za\u0159\u00edzen\u00ed, kter\u00e9 nepat\u0159\u00ed leg\u00e1ln\u00edmu u\u017eivateli<\/i>), geolokace (<i>u\u017eivatel, kter\u00fd se pr\u00e1v\u011b nach\u00e1zel v Moskv\u011b, se pokou\u0161\u00ed prov\u00e9st operaci z Novosibirsku<\/i>), a behavior\u00e1ln\u00ed anal\u00fdza, m\u00e1 velk\u00fd v\u00fdznam pro odstran\u011bn\u00ed zranitelnost\u00ed, ale \u017e\u00e1dn\u00e9 z \u0159e\u0161en\u00ed nen\u00ed v\u0161el\u00e9k. Pro ka\u017edou situaci a typ dat je t\u0159eba pe\u010dliv\u011b posoudit rizika a vybrat, jak\u00e1 technologie autentizace by m\u011bla b\u00fdt pou\u017eita.<\/p>\n<h2>\u017d\u00e1dn\u00e9 \u0159e\u0161en\u00ed pro autentizaci nen\u00ed v\u0161el\u00e9k.<\/h2>\n<p>\n<b>Obr\u00e1zek 2. Tabulka mo\u017enost\u00ed autentizace<\/b><\/p>\n<table>\n<tr>\n<td width=\"140\"><strong>Autentizace<\/strong><\/td>\n<td width=\"90\"><strong>Faktor<\/strong><\/td>\n<td><strong>Popis<\/strong><\/td>\n<td><strong>Kl\u00ed\u010dov\u00e9 zranitelnosti<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Heslo nebo PIN<\/td>\n<td>Znalost<\/td>\n<td>Pevn\u00e1 hodnota, kter\u00e1 m\u016f\u017ee zahrnovat p\u00edsmena, \u010d\u00edsla a r\u016fzn\u00e9 dal\u0161\u00ed znaky<\/td>\n<td>M\u016f\u017ee b\u00fdt zachyceno, odposlechnuto, ukradeno, uhodnuto nebo prolomeno<\/td>\n<\/tr>\n<tr>\n<td>Autentizace zalo\u017een\u00e1 na znalostech<\/td>\n<td>Znalost<\/td>\n<td>Ot\u00e1zky, na kter\u00e9 mohou zn\u00e1t odpov\u011bdi pouze leg\u00e1ln\u00ed u\u017eivatel\u00e9<\/td>\n<td>Mohou b\u00fdt zachyceny, uhodnuty, z\u00edsk\u00e1ny pomoc\u00ed soci\u00e1ln\u00edho in\u017een\u00fdrstv\u00ed<\/td>\n<\/tr>\n<tr>\n<td>Hardwarov\u00e9 OTP (<noindex><a rel=\"nofollow\" href=\"https:\/\/www.rutoken.ru\/products\/all\/rutoken-otp\/\">p\u0159\u00edklad<\/a><\/noindex>)<\/td>\n<td>Vlastnictv\u00ed<\/td>\n<td>Speci\u00e1ln\u00ed za\u0159\u00edzen\u00ed, kter\u00e9 generuje jednor\u00e1zov\u00e9 hesla<\/td>\n<td>K\u00f3d m\u016f\u017ee b\u00fdt zachycen a opakov\u00e1n, nebo m\u016f\u017ee b\u00fdt za\u0159\u00edzen\u00ed ukradeno<\/td>\n<\/tr>\n<tr>\n<td>Softwarov\u00e9 OTP<\/td>\n<td>Vlastnictv\u00ed<\/td>\n<td>Aplikace (mobiln\u00ed, dostupn\u00e1 p\u0159es prohl\u00ed\u017ee\u010d, nebo pos\u00edlaj\u00edc\u00ed k\u00f3dy e-mailem), kter\u00e1 generuje jednor\u00e1zov\u00e9 hesla<\/td>\n<td>K\u00f3d m\u016f\u017ee b\u00fdt zachycen a opakov\u00e1n, nebo m\u016f\u017ee b\u00fdt za\u0159\u00edzen\u00ed ukradeno<\/td>\n<\/tr>\n<tr>\n<td>SMS OTP<\/td>\n<td>Vlastnictv\u00ed<\/td>\n<td>Jednor\u00e1zov\u00e9 heslo doru\u010den\u00e9 pomoc\u00ed textov\u00e9 zpr\u00e1vy SMS<\/td>\n<td>K\u00f3d m\u016f\u017ee b\u00fdt zachycen a opakov\u00e1n, nebo m\u016f\u017ee b\u00fdt smartphone \u010di SIM karta ukradena, nebo m\u016f\u017ee b\u00fdt SIM karta zkop\u00edrov\u00e1na<\/td>\n<\/tr>\n<tr>\n<td>Smart karty (<noindex><a rel=\"nofollow\" href=\"https:\/\/www.rutoken.ru\/products\/all\/smart-card\/\">p\u0159\u00edklad<\/a><\/noindex>)<\/td>\n<td>Vlastnictv\u00ed<\/td>\n<td>Karta, kter\u00e1 obsahuje kryptografick\u00fd \u010dip a chr\u00e1n\u011bnou pam\u011b\u0165 s kl\u00ed\u010di, pou\u017e\u00edvaj\u00edc\u00ed pro autentizaci infrastrukturu ve\u0159ejn\u00fdch kl\u00ed\u010d\u016f<\/td>\n<td>M\u016f\u017ee b\u00fdt fyzicky ukradena (<i>ale \u00fato\u010dn\u00edk nem\u016f\u017ee za\u0159\u00edzen\u00ed pou\u017e\u00edt bez znalosti PIN k\u00f3du; v p\u0159\u00edpad\u011b n\u011bkolika chybn\u00fdch pokus\u016f o zad\u00e1n\u00ed bude za\u0159\u00edzen\u00ed uzam\u010deno<\/i>)<\/td>\n<\/tr>\n<tr>\n<td>Bezpe\u010dnostn\u00ed kl\u00ed\u010de \u2014 tokeny (<noindex><a rel=\"nofollow\" href=\"https:\/\/www.rutoken.ru\/products\/all\/rutoken-ecp-pki\/\">p\u0159\u00edklad<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"https:\/\/www.rutoken.ru\/products\/all\/rutoken-u2f\/\">dal\u0161\u00ed p\u0159\u00edklad<\/a><\/noindex>)<\/td>\n<td>Vlastnictv\u00ed<\/td>\n<td>Za\u0159\u00edzen\u00ed s USB rozhran\u00edm, kter\u00e9 obsahuje kryptografick\u00fd \u010dip a chr\u00e1n\u011bnou pam\u011b\u0165 s kl\u00ed\u010di, pou\u017e\u00edvaj\u00edc\u00ed pro autentizaci infrastrukturu ve\u0159ejn\u00fdch kl\u00ed\u010d\u016f<\/td>\n<td>M\u016f\u017ee b\u00fdt fyzicky ukradeno (ale \u00fato\u010dn\u00edk nem\u016f\u017ee za\u0159\u00edzen\u00ed pou\u017e\u00edt bez znalosti PIN k\u00f3du; v p\u0159\u00edpad\u011b n\u011bkolika chybn\u00fdch pokus\u016f o zad\u00e1n\u00ed bude za\u0159\u00edzen\u00ed uzam\u010deno)<\/td>\n<\/tr>\n<tr>\n<td>V\u00e1z\u00e1n\u00ed na za\u0159\u00edzen\u00ed<\/td>\n<td>Vlastnictv\u00ed<\/td>\n<td>Proces, kter\u00fd vytv\u00e1\u0159\u00ed profil, \u010dasto za pou\u017eit\u00ed JavaScriptu, nebo pomoc\u00ed token\u016f, jako jsou cookies a Flash Shared Objects, aby se zajistilo, \u017ee je pou\u017e\u00edv\u00e1no konkr\u00e9tn\u00ed za\u0159\u00edzen\u00ed<\/td>\n<td>Tokeny mohou b\u00fdt ukradeny (zkop\u00edrov\u00e1ny), tak\u00e9 vlastnosti legitimn\u00edho za\u0159\u00edzen\u00ed mohou b\u00fdt imitov\u00e1ny \u00fato\u010dn\u00edkem na jeho za\u0159\u00edzen\u00ed<\/td>\n<\/tr>\n<tr>\n<td>soubor\u016f ukazuje, jak odli\u0161n\u00e9 mohou b\u00fdt diskov\u00e9 souborov\u00e9 syst\u00e9my VFS. Na jedn\u00e9 stran\u011b,<\/td>\n<td>Neodmyslitelnost<\/td>\n<td>Analyzuje, jak u\u017eivatel interaguje se za\u0159\u00edzen\u00edm nebo programem<\/td>\n<td>Chov\u00e1n\u00ed m\u016f\u017ee b\u00fdt imitov\u00e1no<\/td>\n<\/tr>\n<tr>\n<td>Otisky prst\u016f<\/td>\n<td>Neodmyslitelnost<\/td>\n<td>Ulo\u017een\u00e9 otisky prst\u016f se srovn\u00e1vaj\u00ed s na\u010dten\u00fdmi optick\u00fdm nebo elektronick\u00fdm zp\u016fsobem<\/td>\n<td>Obr\u00e1zek m\u016f\u017ee b\u00fdt ukraden a pou\u017eit pro autentizaci<\/td>\n<\/tr>\n<tr>\n<td>Skenov\u00e1n\u00ed o\u010d\u00ed<\/td>\n<td>Neodmyslitelnost<\/td>\n<td>Srovn\u00e1vaj\u00ed se charakteristiky oka, jako je vzor duhovky zornice, s nov\u00fdmi skeny z\u00edskan\u00fdmi optick\u00fdm zp\u016fsobem<\/td>\n<td>Obr\u00e1zek m\u016f\u017ee b\u00fdt ukraden a pou\u017eit pro autentizaci<\/td>\n<\/tr>\n<tr>\n<td>Rozpozn\u00e1v\u00e1n\u00ed obli\u010deje<\/td>\n<td>Neodmyslitelnost<\/td>\n<td>Srovn\u00e1vaj\u00ed se charakteristiky obli\u010deje s nov\u00fdmi skeny z\u00edskan\u00fdmi optick\u00fdm zp\u016fsobem<\/td>\n<td>Obr\u00e1zek m\u016f\u017ee b\u00fdt ukraden a pou\u017eit pro autentizaci<\/td>\n<\/tr>\n<tr>\n<td>Rozpozn\u00e1v\u00e1n\u00ed hlasu<\/td>\n<td>Neodmyslitelnost<\/td>\n<td>Porovn\u00e1vaj\u00ed se charakteristiky nahran\u00e9ho vzoru hlasu s nov\u00fdmi vzory.<\/td>\n<td>Nahr\u00e1vka m\u016f\u017ee b\u00fdt ukradena a pou\u017eita pro autentifikaci, nebo emulov\u00e1na.<\/td>\n<\/tr>\n<\/table>\n<p>Ve druh\u00e9 \u010d\u00e1sti publikace n\u00e1s \u010dekaj\u00ed nejzaj\u00edmav\u011bj\u0161\u00ed pas\u00e1\u017ee \u2014 \u010d\u00edsla a fakta, na kter\u00fdch jsou zalo\u017eeny z\u00e1v\u011bry a doporu\u010den\u00ed z prvn\u00ed \u010d\u00e1sti. Samostatn\u011b bude probr\u00e1na autentifikace v u\u017eivatelsk\u00fdch aplikac\u00edch a v podnikov\u00fdch syst\u00e9mech.<\/p>\n<p>T\u011b\u0161\u00edme se na v\u00e1s!<br \/>\n<br \/>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/aktiv-company\/blog\/449442\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0421\u043f\u043e\u0439\u043b\u0435\u0440 \u0438\u0437 \u0437\u0430\u0433\u043e\u043b\u043e\u0432\u043a\u0430 \u043e\u0442\u0447\u0435\u0442\u0430 \u00ab\u041a\u043e\u043b\u0438\u0447\u0435\u0441\u0442\u0432\u043e \u0441\u043b\u0443\u0447\u0430\u0435\u0432 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f \u0441\u0442\u0440\u043e\u0433\u043e\u0439 \u0430\u0443\u0442\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438 \u0432\u044b\u0440\u043e\u0441\u043b\u043e \u0431\u043b\u0430\u0433\u043e\u0434\u0430\u0440\u044f \u0443\u0433\u0440\u043e\u0437\u0430\u043c \u043d\u043e\u0432\u044b\u0445 \u0440\u0438\u0441\u043a\u043e\u0432 \u0438 \u0442\u0440\u0435\u0431\u043e\u0432\u0430\u043d\u0438\u044f\u043c \u0440\u0435\u0433\u0443\u043b\u044f\u0442\u043e\u0440\u043e\u0432\u00bb. \u0418\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u0441\u043a\u0430\u044f \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u044f \u00abJavelin Strategy &amp; Research\u00bb \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0430 \u043e\u0442\u0447\u0451\u0442 \u00abThe State of Strong Authentication 2019\u00bb ( \u043e\u0440\u0438\u0433\u0438\u043d\u0430\u043b \u0432 \u0444\u043e\u0440\u043c\u0430\u0442\u0435 pdf \u043c\u043e\u0436\u043d\u043e \u0441\u043a\u0430\u0447\u0430\u0442\u044c \u0442\u0443\u0442). \u0412 \u044d\u0442\u043e\u043c \u043e\u0442\u0447\u0435\u0442\u0435 \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u043e: \u043a\u0430\u043a\u043e\u0439 \u043f\u0440\u043e\u0446\u0435\u043d\u0442 \u0430\u043c\u0435\u0440\u0438\u043a\u0430\u043d\u0441\u043a\u0438\u0445 \u0438 \u0435\u0432\u0440\u043e\u043f\u0435\u0439\u0441\u043a\u0438\u0445 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0439 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0442 \u043f\u0430\u0440\u043e\u043b\u0438 (\u0438 \u043f\u043e\u0447\u0435\u043c\u0443 \u043f\u0430\u0440\u043e\u043b\u0438 \u0441\u0435\u0439\u0447\u0430\u0441 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":24451,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-32662","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/cs\/blog\/news\/chto-budet-s-autentifikatsiej-i-parolyami-perevod-otcheta-javelin-sostoyanie-strogoj-autentifikatsii-s-kommentariyami\" \/>\n\t\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.3\" \/>\n\t\t<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n\t\t<meta property=\"og:site_name\" content=\"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"\ud83e\udd47\u0427\u0442\u043e \u0431\u0443\u0434\u0435\u0442 \u0441 \u0430\u0443\u0442\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0435\u0439 \u0438 \u043f\u0430\u0440\u043e\u043b\u044f\u043c\u0438? 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