{"id":101609,"date":"2021-10-12T16:23:09","date_gmt":"2021-10-12T14:23:09","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimosti-v-libreoffice-i-apache-openoffice-pozvolyayushhie-obojti-proverku-czifrovoj-podpisi"},"modified":"2021-10-12T16:23:09","modified_gmt":"2021-10-12T14:23:09","slug":"uyazvimosti-v-libreoffice-i-apache-openoffice-pozvolyayushhie-obojti-proverku-czifrovoj-podpisi","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pl\/blog\/news\/uyazvimosti-v-libreoffice-i-apache-openoffice-pozvolyayushhie-obojti-proverku-czifrovoj-podpisi","title":{"rendered":"Luki w LibreOffice i Apache OpenOffice umo\u017cliwiaj\u0105ce obej\u015bcie weryfikacji podpisu cyfrowego","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Ujawniono informacje o trzech lukach w pakietach biurowych LibreOffice i Apache OpenOffice, kt\u00f3re pozwalaj\u0105 atakuj\u0105cym przygotowa\u0107 dokumenty wygl\u0105daj\u0105ce na podpisane przez zaufane \u017ar\u00f3d\u0142o lub zmieni\u0107 dat\u0119 ju\u017c podpisanego dokumentu. Problemy zosta\u0142y naprawione w wersjach Apache OpenOffice 4.1.11 oraz LibreOffice 7.0.6\/7.1.2, wprowadzonych jako nie zwi\u0105zane z bezpiecze\u0144stwem b\u0142\u0119dy (wersje LibreOffice 7.0.6 i 7.1.2 opublikowano na pocz\u0105tku maja, jednak informacje o lukach zosta\u0142y ujawnione dopiero teraz).    <\/p>\n<ul>\n<li class=\"l\"> CVE-2021-41832, CVE-2021-25635 \u2014 umo\u017cliwia atakuj\u0105cemu podpisanie dokumentu ODF nies\u0142awnym certyfikatem samopodpisanym, ale przez zmian\u0119 algorytmu podpisu cyfrowego na b\u0142\u0119dn\u0105 lub nieobs\u0142ugiwan\u0105 warto\u015b\u0107, osi\u0105gn\u0105\u0107 wy\u015bwietlenie dokumentu jako godnego zaufania (podpis z b\u0142\u0119dnym algorytmem by\u0142 traktowany jako poprawny).\n<li class=\"l\"> CVE-2021-41830, CVE-2021-25633 \u2014 umo\u017cliwia atakuj\u0105cemu poprzez po\u0142\u0105czenie w plikach documentsignatures.xml i macrosignatures.xml danych podpisanych r\u00f3\u017cnymi certyfikatami stworzy\u0107 dokument ODF lub makro, kt\u00f3re b\u0119dzie wy\u015bwietlane w interfejsie jako godne zaufania, mimo istnienia dodatkowej zawarto\u015bci zatwierdzonej innym certyfikatem.\n<li class=\"l\"> CVE-2021-41831, CVE-2021-25634 \u2014 umo\u017cliwia wprowadzenie zmian w podpisanym podpisem cyfrowym dokumencie ODF, zniekszta\u0142caj\u0105cych wy\u015bwietlany u\u017cytkownikowi czas utworzenia podpisu cyfrowego bez naruszania wskazania zaufania.        <\/ul>\n<p>\u0179r\u00f3d\u0142o: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=55953\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0420\u0430\u0441\u043a\u0440\u044b\u0442\u044b \u0441\u0432\u0435\u0434\u0435\u043d\u0438\u044f \u043e \u0442\u0440\u0451\u0445 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044f\u0445 \u0432 \u043e\u0444\u0438\u0441\u043d\u044b\u0445 \u043f\u0430\u043a\u0435\u0442\u0430\u0445 LibreOffice \u0438 Apache OpenOffice, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0438\u0445 \u0430\u0442\u0430\u043a\u0443\u044e\u0449\u0438\u043c \u043f\u043e\u0434\u0433\u043e\u0442\u043e\u0432\u0438\u0442\u044c \u0434\u043e\u043a\u0443\u043c\u0435\u043d\u0442\u044b, \u0432\u044b\u0433\u043b\u044f\u0434\u044f\u0449\u0438\u0435 \u043a\u0430\u043a \u043f\u043e\u0434\u043f\u0438\u0441\u0430\u043d\u043d\u044b\u0435 \u0437\u0430\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u044e\u0449\u0438\u043c \u0434\u043e\u0432\u0435\u0440\u0438\u044f \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u043e\u043c, \u0438\u043b\u0438 \u0438\u0437\u043c\u0435\u043d\u0438\u0442\u044c \u0434\u0430\u0442\u0443 \u0443\u0436\u0435 \u043f\u043e\u0434\u043f\u0438\u0441\u0430\u043d\u043d\u043e\u0433\u043e \u0434\u043e\u043a\u0443\u043c\u0435\u043d\u0442\u0430. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u044b \u0431\u044b\u043b\u0438 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u044b \u0432 \u0432\u044b\u043f\u0443\u0441\u043a\u0430\u0445 Apache OpenOffice 4.1.11 \u0438 LibreOffice 7.0.6\/7.1.2 \u043f\u043e\u0434 \u0432\u0438\u0434\u043e\u043c \u043d\u0435 \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u0445 \u0441 \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u044c\u044e \u043e\u0448\u0438\u0431\u043e\u043a (\u0432\u044b\u043f\u0443\u0441\u043a\u0438 LibreOffice 7.0.6 \u0438 7.1.2 \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u044b \u0432 \u043d\u0430\u0447\u0430\u043b\u0435 \u043c\u0430\u044f, [&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":[702],"tags":[],"class_list":["post-101609","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0420\u0430\u0441\u043a\u0440\u044b\u0442\u044b \u0441\u0432\u0435\u0434\u0435\u043d\u0438\u044f \u043e \u0442\u0440\u0451\u0445 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044f\u0445 \u0432 \u043e\u0444\u0438\u0441\u043d\u044b\u0445 \u043f\u0430\u043a\u0435\u0442\u0430\u0445 LibreOffice \u0438 Apache OpenOffice, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0438\u0445 \u0430\u0442\u0430\u043a\u0443\u044e\u0449\u0438\u043c 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OpenOffice pozwalaj\u0105ce na obej\u015bcie weryfikacji podpisu cyfrowego | ProHoster","description":"Ujawniono informacje o trzech lukach w pakietach biurowych LibreOffice i Apache OpenOffice, kt\u00f3re pozwalaj\u0105 atakuj\u0105cym przygotowa\u0107 dokumenty wygl\u0105daj\u0105ce jak podpisane przez zaufane \u017ar\u00f3d\u0142o lub zmieni\u0107 dat\u0119 ju\u017c podpisanego dokumentu.","canonical_url":"https:\/\/prohoster.info\/pl\/blog\/news\/uyazvimosti-v-libreoffice-i-apache-openoffice-pozvolyayushhie-obojti-proverku-czifrovoj-podpisi","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 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