{"id":36033,"date":"2019-10-31T22:09:16","date_gmt":"2019-10-31T19:09:16","guid":{"rendered":"https:\/\/prohoster.info\/blog\/vypusk-gnupg-2-2-17-s-izmeneniyami-dlya-protivostoyaniya-atake-na-servery-klyuchej\/"},"modified":"2019-10-31T22:09:16","modified_gmt":"2019-10-31T19:09:16","slug":"vypusk-gnupg-2-2-17-s-izmeneniyami-dlya-protivostoyaniya-atake-na-servery-klyuchej","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/vypusk-gnupg-2-2-17-s-izmeneniyami-dlya-protivostoyaniya-atake-na-servery-klyuchej","title":{"rendered":"GnuPG 2.2.17 v\u00e4ljaanne muudatustega, et vastupanuv\u00f5ime s\u00e4ilitada v\u00f5tmete serverite r\u00fcnnakute vastu","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"https:\/\/lists.gnupg.org\/pipermail\/gnupg-announce\/2019q3\/000439.html\">Avaldatud<\/a><\/noindex>  t\u00f6\u00f6riista v\u00e4ljalase  <noindex><a rel=\"nofollow\" href=\"https:\/\/gnupg.org\/\">GnuPG 2.2.17<\/a><\/noindex> (GNU Privacy Guard), mis on koosk\u00f5las OpenPGP standarditega (<noindex><a rel=\"nofollow\" href=\"https:\/\/tools.ietf.org\/html\/rfc4880\">RFC-4880<\/a><\/noindex>) ja S\/MIME ning pakub t\u00f6\u00f6riistu andmete kr\u00fcpteerimiseks, elektrooniliste allkirjade haldamiseks, v\u00f5tmete haldamiseks ja juurdep\u00e4\u00e4suks avalikele v\u00f5tmehoidlatele. Tuletame meelde, et GnuPG 2.2 haru positsioneerib end areneva v\u00e4ljaandena, kuhu lisatakse pidevalt uusi funktsioone, samas kui harus 2.1 on lubatud ainult parandavad uuendused.<\/p>\n<p>Uues v\u00e4ljaandes on ettepanekud klahvivaru serverite r\u00fcnnakute vastu <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=51006\">vastu seista<\/a><\/noindex>, misaligned GnuPG and hindering further work until the problematic certificate is removed from the local store or the certificate store is recreated based on verified public keys. The added protection is built on completely ignoring by default all third-party digital signatures of certificates obtained from key storage servers. It is worth reminding that any user can add their digital signature for arbitrary certificates on the key storage server, which is exploited by attackers to create an enormous number of such signatures (over one hundred thousand) for the victim's certificate, disrupting the normal operation of GnuPG.<\/p>\n<p>Kolmandate osapoolte digiallkirjade eiramine reguleeritakse valikuga &#171;self-sigs-only&#187;, mis lubab laadimist ainult allkirjastaja enda allkirjadele. Vanema k\u00e4itumise taastamiseks v\u00f5ib gpg.conf faili lisada seadistuse &#171;keyserver-options no-self-sigs-only,no-import-clean&#187;. Kui t\u00f6\u00f6 k\u00e4igus tuvastatakse importimise arv, mis p\u00f5hjustab kohaliku salvestusruumi (pubring.kbx) \u00fclekoormuse, siis GnuPG ei anna vea teadet, vaid aktiveerib automaatselt digiallkirjade ignoreerimise re\u017eiimi (&#171;self-sigs-only,import-clean&#187;). <\/p>\n<p>Klahvide v\u00e4rskendamiseks kasutades mehhanismi <noindex><a rel=\"nofollow\" href=\"https:\/\/wiki.gnupg.org\/WKD\">Web Key Directory<\/a><\/noindex> (WKD) on lisatud valik &#171;&#8212;locate-external-key&#187;, mida saab kasutada sertifikaatide salvestuse uuesti loomise jaoks, tuginedes kontrollitud avalikele v\u00f5tmetele. &#171;&#8212;auto-key-retrieve&#187; toimingu t\u00e4itmisel on WKD mehhanism n\u00fc\u00fcd eelistatum kui v\u00f5tme serverid. WKD t\u00f6\u00f6p\u00f5him\u00f5te seisneb avalike v\u00f5tmete paiknemises veebis, seostatult e-posti aadressis n\u00e4idatud domeeniga. N\u00e4iteks aadressi &#171;test@example.com&#187; jaoks v\u00f5ib v\u00f5tme laadida kaudu linki &#171;https:\/\/example.com\/.well-known\/openpgpkey\/hu\/183d7d5ab73cfceece9a5594e6039d5a&#187;.<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Allikas: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=51067\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0440\u0435\u043b\u0438\u0437 \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u044f GnuPG 2.2.17 (GNU Privacy Guard), \u0441\u043e\u0432\u043c\u0435\u0441\u0442\u0438\u043c\u043e\u0433\u043e \u0441\u043e \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u0430\u043c\u0438 OpenPGP (RFC-4880) \u0438 S\/MIME, \u0438 \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0449\u0435\u0433\u043e \u0443\u0442\u0438\u043b\u0438\u0442\u044b \u0434\u043b\u044f \u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0434\u0430\u043d\u043d\u044b\u0445, \u0440\u0430\u0431\u043e\u0442\u044b \u0441 \u044d\u043b\u0435\u043a\u0442\u0440\u043e\u043d\u043d\u044b\u043c\u0438 \u043f\u043e\u0434\u043f\u0438\u0441\u044f\u043c\u0438, \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043a\u043b\u044e\u0447\u0430\u043c\u0438 \u0438 \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u043a \u043f\u0443\u0431\u043b\u0438\u0447\u043d\u044b\u043c \u0445\u0440\u0430\u043d\u0438\u043b\u0438\u0449\u0430\u043c \u043a\u043b\u044e\u0447\u0435\u0439. \u041d\u0430\u043f\u043e\u043c\u043d\u0438\u043c, \u0447\u0442\u043e \u0432\u0435\u0442\u043a\u0430 GnuPG 2.2 \u043f\u043e\u0437\u0438\u0446\u0438\u043e\u043d\u0438\u0440\u0443\u0435\u0442\u0441\u044f \u043a\u0430\u043a \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u044e\u0449\u0438\u0439\u0441\u044f \u0432\u044b\u043f\u0443\u0441\u043a, \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u043c \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0430\u044e\u0442 \u0434\u043e\u0431\u0430\u0432\u043b\u044f\u0442\u044c\u0441\u044f \u043d\u043e\u0432\u044b\u0435 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0438, \u0432 \u0432\u0435\u0442\u043a\u0435 2.1 \u0434\u043e\u043f\u0443\u0441\u043a\u0430\u044e\u0442\u0441\u044f \u0442\u043e\u043b\u044c\u043a\u043e \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0435 \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\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-36033","post","type-post","status-publish","format-standard","hentry","category-novosti-interneta"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.0.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0440\u0435\u043b\u0438\u0437 \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u044f GnuPG.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" 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