{"id":53577,"date":"2019-12-05T00:00:00","date_gmt":"2019-12-04T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/mnozhestvennye-uyazvimosti-v-openbsd"},"modified":"2020-02-18T14:01:30","modified_gmt":"2020-02-18T11:01:30","slug":"mnozhestvennye-uyazvimosti-v-openbsd","status":"publish","type":"post","link":"https:\/\/prohoster.info\/lv\/blog\/news\/mnozhestvennye-uyazvimosti-v-openbsd","title":{"rendered":"Vair\u0101ki dro\u0161\u012bbas tr\u016bkumi OpenBSD","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Qualys Labs speci\u0101listi ir atkl\u0101ju\u0161i vair\u0101kas dro\u0161\u012bbas probl\u0113mas, kas saist\u012btas ar programmu apm\u0101n\u012b\u0161anu, kas atbild par BSD paroli p\u0101rbaudes meh\u0101nismu (analogus PAM). Apm\u0101ns ir saist\u012bts ar lietot\u0101jv\u0101rda «-schallenge» vai «-schallenge:passwd» p\u0101rs\u016bt\u012b\u0161anu, kas p\u0113c tam tiek interpret\u0113ta nevis k\u0101 lietot\u0101jv\u0101rds, bet k\u0101 opcija. P\u0113c tam sist\u0113ma pie\u0146em jebkuru paroli. Pakalpojumi smtpd, ldapd, radiusd ir neaizsarg\u0101ti, t.i., tie \u013cauj nesankcion\u0113tu piek\u013cuvi. Pakalpojumu sshd nav iesp\u0113jams izmantot, jo sshd atkl\u0101j, ka lietot\u0101js «-schallenge» paties\u012bb\u0101 neeksist\u0113. Programma su m\u0113\u0123inot izmantot, k\u013c\u016bst neakt\u012bva, jo ar\u012b cen\u0161as noskaidrot neeso\u0161a lietot\u0101ja uid.<\/p>\n

Tika atkl\u0101tas ar\u012b da\u017e\u0101das neaizsarg\u0101t\u012bbas xlock, autentifik\u0101cij\u0101 caur S\/K key un Yubikey, k\u0101 ar\u012b su, kas nav saist\u012btas ar lietot\u0101ja «-schallenge» nor\u0101d\u012b\u0161anu. Neaizsarg\u0101t\u012bba xlock \u013cauj parastajam lietot\u0101jam paaugstin\u0101t privil\u0113\u0123ijas l\u012bdz auth grupai. Sakar\u0101 ar nepiln\u012bgu autentifik\u0101cijas meh\u0101nismu darbu caur S\/K key un Yubikey ir iesp\u0113jams paaugstin\u0101t privil\u0113\u0123ijas no auth grupas l\u012bdz root lietot\u0101jam, bet OpenBSD noklus\u0113juma konfigur\u0101cij\u0101 tas nedarbojas, jo autentifik\u0101cija caur S\/K key un Yubikey ir izsl\u0113gta. Visbeidzot, neaizsarg\u0101t\u012bba su \u013cauj lietot\u0101jam palielin\u0101t sist\u0113mas resursu limitus, piem\u0113ram, atv\u0113rto failu descriptoru skaitu.<\/p>\n

Pa\u0161laik ievainojam\u012bbas ir nov\u0113rstas, dro\u0161\u012bbas atjaunin\u0101jumi ir pieejami, izmantojot standarta syspatch(8) meh\u0101nismu.<\/p>\n

Avots: linux.org.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0421\u043f\u0435\u0446\u0438\u0430\u043b\u0438\u0441\u0442\u044b \u0438\u0437 Qualys Labs \u043e\u0431\u043d\u0430\u0440\u0443\u0436\u0438\u043b\u0438 \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u043f\u0440\u043e\u0431\u043b\u0435\u043c \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u0445 \u0441 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c\u044e \u043e\u0431\u043c\u0430\u043d\u0443\u0442\u044c \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u044b, \u043e\u0442\u0432\u0435\u0447\u0430\u044e\u0449\u0438\u0435 \u0437\u0430 \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u043c\u044b\u0435 \u0432 BSD \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u044b \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u043f\u0430\u0440\u043e\u043b\u0435\u0439 (\u0430\u043d\u0430\u043b\u043e\u0433 PAM). \u041e\u0431\u043c\u0430\u043d \u0437\u0430\u043a\u043b\u044e\u0447\u0430\u0435\u0442\u0441\u044f \u0432 \u043f\u0435\u0440\u0435\u0434\u0430\u0447\u0435 \u0438\u043c\u0435\u043d\u0438 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f «-schallenge» \u0438\u043b\u0438 «-schallenge:passwd», \u043a\u043e\u0442\u043e\u0440\u043e\u0435 \u0437\u0430\u0442\u0435\u043c \u0438\u043d\u0442\u0435\u0440\u043f\u0440\u0435\u0442\u0438\u0440\u0443\u0435\u0442\u0441\u044f \u043d\u0435 \u043a\u0430\u043a \u0438\u043c\u044f \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f, \u0430 \u043a\u0430\u043a \u043e\u043f\u0446\u0438\u044f. \u041f\u043e\u0441\u043b\u0435 \u044d\u0442\u043e\u0433\u043e \u0441\u0438\u0441\u0442\u0435\u043c\u0430 \u043f\u0440\u0438\u043d\u0438\u043c\u0430\u0435\u0442 \u043b\u044e\u0431\u043e\u0439 \u043f\u0430\u0440\u043e\u043b\u044c. \u0423\u044f\u0437\u0432\u0438\u043c\u044b, \u0442.\u0435. \u0440\u0430\u0437\u0440\u0435\u0448\u0430\u044e\u0442 \u0432 \u0438\u0442\u043e\u0433\u0435 \u043d\u0435\u0441\u0430\u043d\u043a\u0446\u0438\u043e\u043d\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0439 \u0434\u043e\u0441\u0442\u0443\u043f, […]<\/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":[702],"tags":[],"class_list":["post-53577","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Vair\u0101ki ievainojam\u012bbas gad\u012bjumi OpenBSD | ProHoster","description":"Qualys Labs speci\u0101listi atkl\u0101ja vair\u0101kas dro\u0161\u012bbas probl\u0113mas, kas saist\u012btas ar iesp\u0113ju apmuldat programmas, kas atbild par 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