{"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\/pl\/blog\/news\/v-gnu-wget2-2-2-1-ustranena-uyazvimost-dopuskayushhaya-perezapis-proizvolnyh-fajlov","title":{"rendered":"W GNU Wget2 2.2.1 naprawiono luk\u0119, kt\u00f3ra pozwala\u0142a na nadpisywanie dowolnych plik\u00f3w.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Dost\u0119pna jest wersja projektu GNU Wget2 2.2.1, rozwijaj\u0105ca przepisany od podstaw i ca\u0142kowicie zmodyfikowany wariant programu do automatyzacji rekurencyjnego pobierania tre\u015bci GNU Wget. Wget2 oferuje zestaw dodatkowych opcji, wspiera pobieranie z wielu \u017ar\u00f3de\u0142, pozwala korzysta\u0107 z dost\u0119pnej funkcjonalno\u015bci poprzez bibliotek\u0119 libwget, obs\u0142uguje protoko\u0142y HTTP\/2 i TLS 1.3, umo\u017cliwia pobieranie tylko zmodyfikowanych danych, mo\u017ce zapisywa\u0107 dane z serwer\u00f3w streamuj\u0105cych, prawid\u0142owo obs\u0142uguje zinternacjonalizowane nazwy domen oraz potrafi przekodowa\u0107 pobieran\u0105 zawarto\u015b\u0107. Narz\u0119dzie wget2 dost\u0119pne jest na licencji GPLv3+, a biblioteka na LGPLv3+.     <\/p>\n<p>W nowej wersji usuni\u0119to dwie podatno\u015bci:  <\/p>\n<ul>\n<li class=\"l\"> CVE-2025-69194 \u2014 brak odpowiedniej weryfikacji \u015bcie\u017cek plik\u00f3w podczas przetwarzania tre\u015bci w formacie Metalink, stosowanego do opisywania link\u00f3w do plik\u00f3w do pobrania. Wykorzystuj\u0105c sekwencj\u0119 \u201e.. \/\u201d w \u015bcie\u017ckach plik\u00f3w wewn\u0105trz bloku , atakuj\u0105cy mo\u017ce wymusi\u0107 utworzenie, usuni\u0119cie lub nadpisanie dowolnych plik\u00f3w poza g\u0142\u00f3wnym katalogiem, do kt\u00f3rego nast\u0119puje pobieranie. Na przyk\u0142ad atakuj\u0105cy mo\u017ce nadpisa\u0107 zawarto\u015b\u0107 ~\/ .ssh\/authorized_keys lub ~\/ .bashrc i osi\u0105gn\u0105\u0107 wykonanie swojego kodu w systemie.\n<li class=\"l\"> CVE-2025-69195 \u2014 przepe\u0142nienie bufora w kodzie czyszczenia nazw plik\u00f3w w funkcji get_local_filename_real(), potencjalnie mog\u0105ce prowadzi\u0107 do wykonania kodu podczas przetwarzania specjalnie sformatowanych URL na pobieranych stronach lub podczas przetwarzania przekierowa\u0144. Problem objawia si\u0119 przy w\u0142\u0105czonej opcji \u201e\u2014restrict-file-names=windows|unix|ascii\u201d i jest spowodowany przydzieleniem sta\u0142ego 1024-bajtowego bufora bez weryfikacji faktycznego rozmiaru zapisywanych danych.    <\/ul>\n<p>Z zmian niezwi\u0105zanych z bezpiecze\u0144stwem mo\u017cna zauwa\u017cy\u0107 dodanie opcji \u201e\u2014show-progress\u201d do wskazywania post\u0119pu pobierania, u\u017cycie lokalnego czasu przy wskazaniu opcji \u201e\u2014no-use-server-timestamps\u201d, wsparcie dla prefiksu \u2018no_\u2019 w parametrach konfiguracyjnych oraz wykorzystanie libnghttp2 do testowania HTTP\/2.<br \/>\n<br \/>\u0179r\u00f3d\u0142o: <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 5.0.1.1 - 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To ca\u0142kowicie przebudowana wersja programu do automatycznego pobierania tre\u015bci w trybie rekurencyjnym, napisano j\u0105 od nowa.","canonical_url":"https:\/\/prohoster.info\/pl\/blog\/news\/v-gnu-wget2-2-2-1-ustranena-uyazvimost-dopuskayushhaya-perezapis-proizvolnyh-fajlov","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 GNU Wget2 2.2.1 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c, \u0434\u043e\u043f\u0443\u0441\u043a\u0430\u044e\u0449\u0430\u044f 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