{"id":135918,"date":"2025-06-06T03:05:07","date_gmt":"2025-06-06T01:05:07","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimost-v-python-module-tarfile-dopuskayushhaya-zapis-v-lyubye-chasti-fs"},"modified":"2025-06-06T03:05:07","modified_gmt":"2025-06-06T01:05:07","slug":"uyazvimost-v-python-module-tarfile-dopuskayushhaya-zapis-v-lyubye-chasti-fs","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pl\/blog\/news\/uyazvimost-v-python-module-tarfile-dopuskayushhaya-zapis-v-lyubye-chasti-fs","title":{"rendered":"Vulnerabilno\u015b\u0107 w module Python TarFile, pozwalaj\u0105ca na zapis w dowolnych cz\u0119\u015bciach systemu plik\u00f3w","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>W standardowym module Python tarfile, kt\u00f3ry oferuje funkcje do odczytu i zapisu archiw\u00f3w tar, wykryto pi\u0119\u0107 podatno\u015bci, z kt\u00f3rych jedna zosta\u0142a uznana za krytyczn\u0105. Usterki zosta\u0142y naprawione w wydaniach Python 3.13.4 i 3.12.11. Najbardziej niebezpieczna podatno\u015b\u0107 (CVE-2025-4517) umo\u017cliwia zapis plik\u00f3w w dowolnej cz\u0119\u015bci systemu plik\u00f3w podczas dekompresji specjalnie przygotowanego archiwum. W skryptach systemowych, kt\u00f3re wykorzystuj\u0105 tarfile i s\u0105 uruchamiane z uprawnieniami roota (np. w narz\u0119dziach do zarz\u0105dzania pakietami oraz w odizolowanych kontenerach), podatno\u015b\u0107 mo\u017ce by\u0107 wykorzystana do podniesienia swoich uprawnie\u0144 lub wyj\u015bcia poza granice odizolowanego kontenera.    <\/p>\n<p>Podatno\u015b\u0107 dotyczy projekt\u00f3w, w kt\u00f3rych modu\u0142 tarfile jest stosowany do dekompresji nieufnych archiw\u00f3w tar, u\u017cywaj\u0105c funkcji TarFile.extractall() lub TarFile.extract() z parametrem &#171;filter=&#187; ustawionym na &#171;data&#187; lub &#171;tar&#187;. Problem wynika z niew\u0142a\u015bciwego przetwarzania sekwencji &#171;..&#187; w nazwie odno\u015bnika. Problematyczne s\u0105 wersje Pythona od 3.12. Tryb &#8216;filter=&#187;data&#187;&#8216; jest u\u017cywany domy\u015blnie w ga\u0142\u0119zi Pythona 3.14, kt\u00f3ra jest w trakcie prac (wydanie zaplanowane na jesie\u0144).     <\/p>\n<p>Inne podatno\u015bci w TarFile:  <\/p>\n<ul>\n<li class=\"l\"> CVE-2025-4330 &#8212; mo\u017cliwo\u015b\u0107 obej\u015bcia filtra danych wyodr\u0119bnianych, co mo\u017ce prowadzi\u0107 do wydobycia z archiwum symlink\u00f3w wskazuj\u0105cych poza katalog podstawowy, do kt\u00f3rego odbywa si\u0119 dekompresja.\n<li class=\"l\"> CVE-2025-4138 &#8212; mo\u017cliwo\u015b\u0107 tworzenia dowolnych symlink\u00f3w poza katalogiem podstawowym przy dekompresji archiw\u00f3w z parametrem &#8216;filter=&#187;data&#187;&#8216;.\n<li class=\"l\"> CVE-2024-12718 &#8212; mo\u017cliwo\u015b\u0107 zmiany metadanych (np. czasu modyfikacji) plik\u00f3w poza katalogiem podstawowym przy dekompresji archiw\u00f3w z parametrem &#8216;filter=&#187;data&#187;&#8216; lub praw dost\u0119pu (chmod) przy dekompresji archiw\u00f3w z parametrem &#8216;filter=&#187;tar&#187;&#8216;.\n<li class=\"l\"> CVE-2025-4435 &#8212; je\u015bli podczas dekompresji archiwum parametr TarFile.errorlevel jest ustawiony na 0, to wbrew dokumentacji elementy archiwum podlegaj\u0105ce zadany filtr by\u0142y dekompresowane, a nie ignorowane.    <\/ul>\n<p>\u0179r\u00f3d\u0142o: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=63365\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412\u043e \u0432\u0445\u043e\u0434\u044f\u0449\u0435\u043c \u0432 \u0448\u0442\u0430\u0442\u043d\u0443\u044e \u043f\u043e\u0441\u0442\u0430\u0432\u043a\u0443 Python \u043c\u043e\u0434\u0443\u043b\u0435 tarfile, \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0449\u0435\u043c \u0444\u0443\u043d\u043a\u0446\u0438\u0438 \u0434\u043b\u044f \u0447\u0442\u0435\u043d\u0438\u044f \u0438 \u0437\u0430\u043f\u0438\u0441\u0438 tar-\u0430\u0440\u0445\u0438\u0432\u043e\u0432, \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u043e \u043f\u044f\u0442\u044c \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439, \u043e\u0434\u043d\u043e\u0439 \u0438\u0437 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u043f\u0440\u0438\u0441\u0432\u043e\u0435\u043d \u043a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u044b \u0432 \u0432\u044b\u043f\u0443\u0441\u043a\u0430\u0445 Python 3.13.4 \u0438 3.12.11. \u041d\u0430\u0438\u0431\u043e\u043b\u0435\u0435 \u043e\u043f\u0430\u0441\u043d\u0430\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2025-4517) \u0434\u0430\u0451\u0442 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u043f\u0440\u0438 \u0440\u0430\u0441\u043f\u0430\u043a\u043e\u0432\u043a\u0435 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043e\u0444\u043e\u0440\u043c\u043b\u0435\u043d\u043d\u043e\u0433\u043e \u0430\u0440\u0445\u0438\u0432\u0430 \u0437\u0430\u043f\u0438\u0441\u0430\u0442\u044c \u0444\u0430\u0439\u043b\u044b \u0432 \u043b\u044e\u0431\u0443\u044e \u0447\u0430\u0441\u0442\u044c \u0444\u0430\u0439\u043b\u043e\u0432\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b. \u0412 \u0441\u0438\u0441\u0442\u0435\u043c\u043d\u044b\u0445 \u0441\u043a\u0440\u0438\u043f\u0442\u0430\u0445, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0449\u0438\u0445 [&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-135918","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=\"\u0412\u043e \u0432\u0445\u043e\u0434\u044f\u0449\u0435\u043c \u0432 \u0448\u0442\u0430\u0442\u043d\u0443\u044e \u043f\u043e\u0441\u0442\u0430\u0432\u043a\u0443 Python \u043c\u043e\u0434\u0443\u043b\u0435 tarfile, \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0449\u0435\u043c \u0444\u0443\u043d\u043a\u0446\u0438\u0438 \u0434\u043b\u044f \u0447\u0442\u0435\u043d\u0438\u044f \u0438 \u0437\u0430\u043f\u0438\u0441\u0438 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