{"id":153405,"date":"2026-01-05T17:12:15","date_gmt":"2026-01-05T15:12:15","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-gnu-wget2-2-2-1-ustranena-uyazvimost-dopuskayushhaya-perezapis-proizvolnyh-fajlov"},"modified":"2026-01-05T17:12:15","modified_gmt":"2026-01-05T15:12:15","slug":"v-gnu-wget2-2-2-1-ustranena-uyazvimost-dopuskayushhaya-perezapis-proizvolnyh-fajlov","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/v-gnu-wget2-2-2-1-ustranena-uyazvimost-dopuskayushhaya-perezapis-proizvolnyh-fajlov","title":{"rendered":"Ve verzi GNU Wget2 2.2.1 byla odstran\u011bna zranitelnost umo\u017e\u0148uj\u00edc\u00ed p\u0159eps\u00e1n\u00ed libovoln\u00fdch soubor\u016f","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Byla vyd\u00e1na verze projektu GNU Wget2 2.2.1, kter\u00e1 p\u0159edstavuje zcela p\u0159epracovanou variantu programu pro automatizaci rekurzivn\u00edho stahov\u00e1n\u00ed obsahu GNU Wget. Wget2 nab\u00edz\u00ed sadu dal\u0161\u00edch mo\u017enost\u00ed, podporuje stahov\u00e1n\u00ed v n\u011bkolika paraleln\u00edch vl\u00e1knech, umo\u017e\u0148uje p\u0159\u00edstup k dostupn\u00e9 funkcionalit\u011b prost\u0159ednictv\u00edm knihovny libwget, podporuje protokoly HTTP\/2 a TLS 1.3, umo\u017e\u0148uje stahovat pouze upraven\u00e1 data, m\u016f\u017ee ukl\u00e1dat data ze streamovac\u00edch server\u016f, spr\u00e1vn\u011b zpracov\u00e1v\u00e1 internacionalizovan\u00e9 dom\u00e9ny a je schopen p\u0159episovat stahovan\u00fd obsah. N\u00e1stroj wget2 je dod\u00e1v\u00e1n pod licenc\u00ed GPLv3+, zat\u00edmco knihovna je pod LGPLv3+.     <\/p>\n<p>Ve nov\u00e9 verzi byly odstran\u011bny dv\u011b zranitelnosti:  <\/p>\n<ul>\n<li class=\"l\"> CVE-2025-69194 \u2014 nedostatek \u0159\u00e1dn\u00e9 kontroly cest k soubor\u016fm p\u0159i zpracov\u00e1n\u00ed obsahu ve form\u00e1tu Metalink, pou\u017e\u00edvan\u00e9ho k popisu odkaz\u016f na soubory ke sta\u017een\u00ed. Pou\u017eit\u00edm sekvence \u201e..\\\/\u201c v cest\u00e1ch k soubor\u016fm uvnit\u0159 bloku , m\u016f\u017ee \u00fato\u010dn\u00edk dos\u00e1hnout vytvo\u0159en\u00ed, vymaz\u00e1n\u00ed nebo p\u0159eps\u00e1n\u00ed libovoln\u00fdch soubor\u016f mimo z\u00e1kladn\u00ed adres\u00e1\u0159, do kter\u00e9ho se stahuje. Nap\u0159\u00edklad \u00fato\u010dn\u00edk m\u016f\u017ee p\u0159epsat obsah ~\/ .ssh\/authorized_keys nebo ~\/ .bashrc a dos\u00e1hnout proveden\u00ed sv\u00e9ho k\u00f3du v syst\u00e9mu.\n<li class=\"l\"> CVE-2025-69195 \u2014 p\u0159ete\u010den\u00ed bufferu v k\u00f3du \u010di\u0161t\u011bn\u00ed n\u00e1zv\u016f soubor\u016f ve funkci get_local_filename_real(), potenci\u00e1ln\u011b schopn\u00e9 v\u00e9st k vykon\u00e1n\u00ed k\u00f3du p\u0159i zpracov\u00e1n\u00ed speci\u00e1ln\u011b vytvo\u0159en\u00fdch URL na stahovan\u00fdch str\u00e1nk\u00e1ch nebo p\u0159i zpracov\u00e1n\u00ed p\u0159esm\u011brov\u00e1n\u00ed. Probl\u00e9m se projevuje p\u0159i zapnut\u00ed volby \u201e--restrict-file-names=windows|unix|ascii\u201c a je zp\u016fsoben p\u0159id\u011blen\u00edm pevn\u00e9ho 1024- bytov\u00e9ho bufferu bez kontroly skute\u010dn\u00e9 velikosti zapisovan\u00fdch dat.    <\/ul>\n<p>Mezi zm\u011bny nesouvisej\u00edc\u00ed se zabezpe\u010den\u00edm lze uv\u00e9st p\u0159id\u00e1n\u00ed volby \u201e--show-progress\u201c pro indikaci postupu stahov\u00e1n\u00ed, pou\u017eit\u00ed m\u00edstn\u00edho \u010dasu p\u0159i ud\u00e1v\u00e1n\u00ed volby \u201e--no-use-server-timestamps\u201c, podporu prefixu \u2018no_\u2019 v konfigurac\u00edch a nasazen\u00ed libnghttp2 pro testov\u00e1n\u00ed HTTP\/2.<br \/>\n<br \/>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=64561\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0414\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u0432\u044b\u043f\u0443\u0441\u043a \u043f\u0440\u043e\u0435\u043a\u0442\u0430 GNU Wget2 2.2.1, \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u044e\u0449\u0435\u0433\u043e \u043f\u0435\u0440\u0435\u043f\u0438\u0441\u0430\u043d\u043d\u044b\u0439 \u0441 \u043d\u0443\u043b\u044f \u0438 \u043f\u043e\u043b\u043d\u043e\u0441\u0442\u044c\u044e \u043f\u0435\u0440\u0435\u0440\u0430\u0431\u043e\u0442\u0430\u043d\u043d\u044b\u0439 \u0432\u0430\u0440\u0438\u0430\u043d\u0442 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u044b \u0434\u043b\u044f \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0437\u0430\u0446\u0438\u0438 \u0440\u0435\u043a\u0443\u0440\u0441\u0438\u0432\u043d\u043e\u0439 \u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0438 \u043a\u043e\u043d\u0442\u0435\u043d\u0442\u0430 GNU Wget. Wget2 \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 \u043d\u0430\u0431\u043e\u0440 \u0434\u043e\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0445 \u043e\u043f\u0446\u0438\u0439, \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u0442 \u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0443 \u0432 \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u043f\u043e\u0442\u043e\u043a\u043e\u0432, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u0443\u044e \u0444\u0443\u043d\u043a\u0446\u0438\u043e\u043d\u0430\u043b\u044c\u043d\u043e\u0441\u0442\u044c \u0447\u0435\u0440\u0435\u0437 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0443 libwget, \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u0442 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u044b HTTP\/2 \u0438 TLS 1.3, \u0434\u0430\u0451\u0442 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u0437\u0430\u0433\u0440\u0443\u0436\u0430\u0442\u044c \u0442\u043e\u043b\u044c\u043a\u043e \u0438\u0437\u043c\u0435\u043d\u0438\u0432\u0448\u0438\u0435\u0441\u044f \u0434\u0430\u043d\u043d\u044b\u0435, \u043c\u043e\u0436\u0435\u0442 \u0441\u043e\u0445\u0440\u0430\u043d\u044f\u0442\u044c \u0434\u0430\u043d\u043d\u044b\u0435 \u0441 [&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-153405","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0414\u043e\u0441\u0442\u0443\u043f\u0435\u043d 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