{"id":87102,"date":"2020-07-03T19:42:01","date_gmt":"2020-07-03T17:42:01","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-ubuntu-20-10-budet-ogranichen-dostup-k-dmesg"},"modified":"2020-07-03T19:42:01","modified_gmt":"2020-07-03T17:42:01","slug":"v-ubuntu-20-10-budet-ogranichen-dostup-k-dmesg","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/v-ubuntu-20-10-budet-ogranichen-dostup-k-dmesg","title":{"rendered":"Ubuntu 20.10-s piiratakse juurdep\u00e4\u00e4su dmesgile","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Ubuntu arendajad n\u00f5ustusid<\/a><\/noindex> juurdep\u00e4\u00e4s utiliidile \/usr\/bin\/dmesg on piiratud ainult kasutajatega, kes kuuluvad r\u00fchma «adm». Praegu ei ole privileegita Ubuntu kasutajatel juurdep\u00e4\u00e4su \/var\/log\/kern.log, \/var\/log\/syslog ja s\u00fcsteemi s\u00fcndmustele journalctl-is, kuid nad saavad vaadata tuuma s\u00fcndmuste logi l\u00e4bi dmesg.<\/p>\n

P\u00f5hjuseks tuuakse v\u00e4lja, et dmesg-i v\u00e4ljund sisaldab teavet, mida r\u00fcndajad saavad kasutada, et lihtsustada priviligeerimise t\u00f5stmise eksploitide loomist. N\u00e4iteks, dmesg'i puhul kuvab see t\u00f5rgete korral m\u00e4lu dumpi ja on v\u00f5imalik m\u00e4\u00e4rata tuumastruktuuride aadresse, mis v\u00f5ivad aidata KASLR-i mehanismi \u00fcmber minna. R\u00fcndaja v\u00f5ib kasutada dmesg'i tagasiside saamiseks, kohandades j\u00e4rk-j\u00e4rgult eksploitide t\u00e4psust ja j\u00e4lgides logides p\u00e4rast eba\u00f5nnestunud r\u00fcnnakute katseid oops-s\u00f5numeid.<\/p>\n

<\/a><\/noindex><\/p>\n

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

\u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 Ubuntu \u0441\u043e\u0433\u043b\u0430\u0441\u043e\u0432\u0430\u043b\u0438 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u0435 \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u043a \u0443\u0442\u0438\u043b\u0438\u0442\u0435 \/usr\/bin\/dmesg \u0442\u043e\u043b\u044c\u043a\u043e \u0434\u043b\u044f \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u0439, \u0432\u0445\u043e\u0434\u044f\u0449\u0438\u0445 \u0432 \u0433\u0440\u0443\u043f\u043f\u0443 «adm». \u0412 \u043d\u0430\u0441\u0442\u043e\u044f\u0449\u0435\u0435 \u0432\u0440\u0435\u043c\u044f \u043d\u0435\u043f\u0440\u0438\u0432\u0438\u043b\u0435\u0433\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0435 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0438 Ubuntu \u043d\u0435 \u0438\u043c\u0435\u044e\u0442 \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u043a \/var\/log\/kern.log, \/var\/log\/syslog \u0438 \u0441\u0438\u0441\u0442\u0435\u043c\u043d\u044b\u043c \u0441\u043e\u0431\u044b\u0442\u0438\u044f\u043c \u0432 journalctl, \u043d\u043e \u043c\u043e\u0433\u0443\u0442 \u043f\u043e\u0441\u043c\u043e\u0442\u0440\u0435\u0442\u044c \u043b\u043e\u0433 \u0441\u043e\u0431\u044b\u0442\u0438\u0439 \u044f\u0434\u0440\u0430 \u0447\u0435\u0440\u0435\u0437 dmesg. \u0412 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435 \u043f\u0440\u0438\u0447\u0438\u043d\u044b \u0443\u043f\u043e\u043c\u0438\u043d\u0430\u0435\u0442\u0441\u044f \u043d\u0430\u043b\u0438\u0447\u0438\u0435 \u0432 \u0432\u044b\u0432\u043e\u0434\u0435 dmesg \u0441\u0432\u0435\u0434\u0435\u043d\u0438\u0439, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043c\u043e\u0433\u0443\u0442 \u0431\u044b\u0442\u044c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u044b \u0430\u0442\u0430\u043a\u0443\u044e\u0449\u0438\u043c\u0438 \u0434\u043b\u044f […]<\/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-87102","post","type-post","status-publish","format-standard","hentry","category-novosti-interneta"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\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\n","aioseo_head_json":{"title":"\ud83e\udd47Ubuntu 20.10-s piiratakse dmesg-i juurdep\u00e4\u00e4su | ProHoster","description":"Ubuntu arendajad on keelanud p\u00e4\u00e4su utiliidile \/usr\/bin\/dmesg ainult neile kasutajatele, kes kuuluvad r\u00fchma \"adm\". Praegu ei ole tavalistel Ubuntu kasutajatel juurdep\u00e4\u00e4su \/var\/log\/kern.log, \/var\/log\/syslog ja s\u00fcsteemsete s\u00fcndmuste salvestusele journalctl'is, kuid nad saavad vaadata tuumavigade logi dmesg kaudu. 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