{"id":114657,"date":"2024-03-30T00:25:55","date_gmt":"2024-03-29T22:25:55","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-kode-xz-versij-5-6-0-i-5-6-1-obnaruzhen-bekdor"},"modified":"2024-03-30T00:25:55","modified_gmt":"2024-03-29T22:25:55","slug":"v-kode-xz-versij-5-6-0-i-5-6-1-obnaruzhen-bekdor","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pl\/blog\/news\/v-kode-xz-versij-5-6-0-i-5-6-1-obnaruzhen-bekdor","title":{"rendered":"W kodzie xz wersji 5.6.0 i 5.6.1 odkryto backdoora","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Deweloper Debian i badacz w dziedzinie bezpiecze\u0144stwa informacji Andres Freund zg\u0142asza odkrycie prawdopodobnego backdoora w kodzie \u017ar\u00f3d\u0142owym xz wersji 5.6.0 i 5.6.1.<\/p>\n

<\/p>\n

Backdoor to linijka w jednym z m4-skrypt\u00f3w<\/a>, kt\u00f3ra dopisuje z obfuskowanym z\u0142o\u015bliwym kodem na ko\u0144cu skryptu configure. Ten kod nast\u0119pnie modyfikuje jeden z generowanych Makefile projektu, co ostatecznie prowadzi do w\u0142\u0105czenia z\u0142o\u015bliwego kodu (ukrytego pod testowym archiwum bad-3-corrupt_lzma2.xz) do pliku binarnego liblzma.<\/p>\n

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

Specyfika incydentu polega na tym, \u017ce z\u0142o\u015bliwy kod znajduje si\u0119 tylko<\/em> w dystrybuowanych archiwach tar z kodem \u017ar\u00f3d\u0142owym i nie jest obecny w repozytorium git projektu.<\/p>\n

Doniesiono, \u017ce osoba, w imieniu kt\u00f3rej z\u0142o\u015bliwy kod zosta\u0142 dodany do repozytorium projektu, jest albo bezpo\u015brednio zaanga\u017cowana w ten incydent, albo sta\u0142a si\u0119 ofiar\u0105 powa\u017cnej kompromitacji swoich osobistych kont (jednak badacz sk\u0142ania si\u0119 ku pierwszej opcji, poniewa\u017c ta osoba osobi\u015bcie uczestniczy\u0142a w kilku dyskusjach dotycz\u0105cych z\u0142o\u015bliwych zmian).<\/p>\n

W artykule badacz zauwa\u017ca, \u017ce celem backdoora najwyra\u017aniej jest wstrzykni\u0119cie kodu do procesu sshd i podmiana kodu weryfikacji kluczy RSA, a tak\u017ce przedstawia kilka sposob\u00f3w na po\u015brednie sprawdzenie, czy z\u0142o\u015bliwy kod jest aktualnie uruchamiany na twoim systemie.<\/p>\n

<\/p>\n

Wed\u0142ug artyku\u0142u prasowego projektu openSUSE<\/a>, ze wzgl\u0119du na z\u0142o\u017cono\u015b\u0107 kodu backdoora i przypuszczalny mechanizm jego wykorzystania, trudno ustali\u0107, czy w og\u00f3le \"zadzia\u0142a\u0142\" na tej maszynie, i zaleca ca\u0142kowit\u0105 reinstalacj\u0119 systemu operacyjnego z rotacj\u0105 wszystkich odpowiednich kluczy na wszystkich maszynach, na kt\u00f3rych cho\u0107 raz wyst\u0119powa\u0142y zainfekowane wersje xz.<\/p>\n

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

\u0179r\u00f3d\u0142o: linux.org.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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Backdoor przedstawia.","canonical_url":"https:\/\/prohoster.info\/pl\/blog\/news\/v-kode-xz-versij-5-6-0-i-5-6-1-obnaruzhen-bekdor","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"pl_PL","og:site_name":"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","og:type":"article","og:title":"\ud83e\udd47\u0412 \u043a\u043e\u0434\u0435 xz \u0432\u0435\u0440\u0441\u0438\u0439 5.6.0 \u0438 5.6.1 \u043e\u0431\u043d\u0430\u0440\u0443\u0436\u0435\u043d \u0431\u044d\u043a\u0434\u043e\u0440 | ProHoster","og:description":"\u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a Debian \u0438 \u0438\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c \u0432 \u0441\u0444\u0435\u0440\u0435 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 Andres Freund \u0441\u043e\u043e\u0431\u0449\u0430\u0435\u0442 \u043e\u0431 \u043e\u0431\u043d\u0430\u0440\u0443\u0436\u0435\u043d\u0438\u0438 \u0432\u0435\u0440\u043e\u044f\u0442\u043d\u043e\u0433\u043e \u0431\u044d\u043a\u0434\u043e\u0440\u0430 \u0432 \u0438\u0441\u0445\u043e\u0434\u043d\u043e\u043c \u043a\u043e\u0434\u0435 xz \u0432\u0435\u0440\u0441\u0438\u0439 5.6.0 \u0438 5.6.1. \u0411\u044d\u043a\u0434\u043e\u0440 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442.","og:url":"https:\/\/prohoster.info\/pl\/blog\/news\/v-kode-xz-versij-5-6-0-i-5-6-1-obnaruzhen-bekdor","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2024-03-29T22:25:55+00:00","article:modified_time":"2024-03-29T22:25:55+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":[],"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/pl\/wp-json\/wp\/v2\/posts\/114657","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/pl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/pl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/pl\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/pl\/wp-json\/wp\/v2\/comments?post=114657"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/pl\/wp-json\/wp\/v2\/posts\/114657\/revisions"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/pl\/wp-json\/wp\/v2\/media?parent=114657"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/pl\/wp-json\/wp\/v2\/categories?post=114657"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/pl\/wp-json\/wp\/v2\/tags?post=114657"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}